Minecraft 1.17 (Caves and Cliffs Update) is here! This script and guide are written to help you get a great performing Raspberry Pi Minecraft server up and running in only a few minutes.
This is the standalone version. It runs on most flavors of Linux and should work on most architectures as well (arm, aarch64, etc.).
I highly recommend using Docker over the standalone version for most people. Installing Docker is as simple as sudo apt install docker.io. There are 3 Docker options available:
Sets up Minecraft as a system service with option to autostart at boot
Automatic backups to minecraft/backups when server restarts
Updates automatically to the latest version when server is started
Easy control of server with start.sh, stop.sh and restart.sh scripts
Optional scheduled daily restart of Pi using cron
Requirements
Raspberry Pi model with 1 GB of RAM or higher. Basically a Raspberry Pi 2B or higher. (No Zero unfortunately, 512MB is not enough RAM to do this, I’ve tried!)
Headless Linux distribution such as Raspbian Buster Lite, Ubuntu Server 18.04.2, or any Debian based distribution (GUI distros can be used at the expense of available RAM and server performance)
Solid state drive highly recommended but not required. You can get a SSD setup on a Pi for less than most Micro SD cards cost. See my article here for details
The Raspberry Pi 4 is available in different memory configurations all the way up to 8 GB. It’s about the size of a credit card and uses an extremely low amount of power making it ideal for all sorts of projects and ideas!
The Raspberry Pi 400 kit includes everything you need for a full Pi 400 desktop build. The Pi 400 is the fastest Raspberry Pi ever released and comes in the form factor of a keyboard!
The Kingston A400 has been a great drive to use with the Pi for years. It’s reliable, widely available around the world, has low power requirements and performs very well. It’s also very affordable. This drive has been benchmarked over 1000 times at pibenchmarks.com and is the #1 most popular SSD among the Pi community!
The USB 3.1 variant of the StarTech 2.5″ SATA adapter works well with the Pi 4. The USB 3.0 variant doesn’t have firmware updates available and is not recommended.
The SanDisk Extreme A1-A2 SD card has the best scoring SD card on Pi Benchmarks for years and is second in popularity only to the SanDisk Ultra (often included in combo kits). The application class (A1) means random I/O speeds (very important when running an OS) have to meet a higher standard. There’s no benefit on the Pi for A2 right now so get whichever is cheaper/available.
The most important consideration when choosing which flavor of Linux to run the server on is simple: available RAM. Headless Linux distributions such as Raspbian Lite that don’t have a built in GUI have
Our biggest obstacle when running a Minecraft server on the Pi is available RAM since 1 GB is extremely low for this type of server. To have a playable experience you should not be running anything else on the Pi so all memory is available to be used.
After testing on many different distros I am finding Raspbian Lite and Ubuntu Server 18.04.4 32-bit to be the best choices. These distributions come with very few background processes and have rock solid support and performance.
64-bit vs 32-bit
There’s a lot of discussion in the Pi world about the up and coming aarch64 64-bit distributions vs. armhf 32-bit distributions. They have been and continue to improve dramatically. There are already use cases where 64-bit is far superior such as video encoding, advanced compression, etc.
So how about for running a Minecraft server? I have been testing extensively with Ubuntu Server 18.04 64-bit and the Debian Buster 64-bit. I have consistently had worse performance and stability than on 32-bit versions of the exact same distros.
But how can that be? It’s certainly true that Minecraft servers benefit in CPU performance from 64-bit versions of Java. The answer is actually incredibly simple: memory. The server running on a 64-bit Java Virtual Machine uses a minimum of about 100 MB more memory. This makes perfect sense because 64 bits > 32 bits by definition!
The Raspberry Pi’s 1 GB of memory has been the biggest obstacle for this project since the very beginning. Back when I first went into the Paper Minecraft developer IRC room and told them what I was trying to do I was practically laughed out of the chat room for even thinking of trying this. Most Minecraft server branches including vanilla can’t even start on the Pi because of the limited memory.
For a dedicated Minecraft server on the Pi I very highly recommend staying 32-bit. You will have more available memory which means it will be much faster and more stable. Since memory is our bottleneck the increased CPU throughput does not help us and losing *any* of our memory is disastrous!
If the Raspberry Pi 4 has more memory like we all expect it to this recommendation will change completely. Even 2 GB of memory would make the extra memory that 64-bit uses a non-issue and the CPU throughput performance gains very desirable. For now though stay 32-bit for a Minecraft server!
Tested Distributions
Raspberry Pi OS – It’s Raspbian. It has very low memory usage and is the official distribution of the Raspberry Pi. The server runs very well on this. It’s overall the best choice. The Buster release has made OpenJDK 11 available on it so it’s no longer behind the rest of the distros.
Ubuntu Server 18.04 / 20.04 – Ubuntu Server is my favorite Linux distro. I use it for nearly all of my projects. The performance of the 32-bit armhf version is on par with Raspbian. It’s a great choice! Click here for my Ubuntu setup guide for Raspberry Pi. The 64-bit version is not a fantastic choice and not recommended because of the higher memory usage. Stick with 32-bit and you’ll be a happy camper with Ubuntu Server.
Debian Buster 64-bit – Debian is the distribution Raspbian is based on. This version is a preview of Debian “Buster” which is the successor to Stretch and will be the next version of Raspbian when it is released. I like this distribution but it is currently still unofficial and unsupported. Performance and stability was less than Ubuntu and Raspbian.
Minecraft Server Installation
SSH into your Raspberry Pi and paste the following commands:
The script will setup the Minecraft sever and ask you some questions on how to configure it. I’ll explain here what they mean.
“Enter amount of memory in megabytes to dedicate to the Minecraft server” – The amount of memory that will be dedicated to the Minecraft server. The more the better, but you must leave some room for the operating system background processes.
If you exceed the total available memory either the server will crash or the Pi will get incredibly slow to the point where your SSH session will start timing out. The setup script will make a recommendation to you which is your available memory – 10% for headroom. If you aren’t sure what to put just go with the recommended amount.
Note for Raspberry Pi 4: Currently on 32-bit Raspbian 2700 MB is the maximum that Linux will let us allocate in a 32 bit environment. The script has been updated to check for this as the server will not start if it is set over 2700M on a 32 bit server. 64 bit operating systems will be able to allocate all available memory as Pi 4 support rolls out for them.
“Start Minecraft server at startup automatically (y/n)?” – This will set the Minecraft service to start automatically when your Pi boots. This is great because whenever you want to play you can just plug it in and go without having to SSH in.
“Automatically reboot Pi and update server at 4am daily (y/n)?” – This will add a cron job to the server that reboots the Pi every day at 4am. This is great because every time the server restarts it backs up the server and updates to the latest version. See the “Scheduled Daily Reboots” section below for information on how to customize the time or remove the reboot.
That is it for the setup script. The server will finish configuring and start!
Check Java Version
Sometimes if you have multiple versions of Java installed the wrong version of Java will be selected as the default. If the server didn’t start check that the right version of Java is selected with this command:
sudo update-alternatives --config java
If you get the message “update-alternatives: error: no alternatives for java” then you only have one version of Java installed and can skip to the next section.
If you are presented with a list of choices then your machine has multiple versions of Java installed. It will look like this:
update-alternatives: warning: /etc/alternatives/java has been changed (manually or by a script); switching to manual updates only
There are 2 choices for the alternative java (providing /usr/bin/java).
Selection Path Priority Status
------------------------------------------------------------
0 /usr/lib/jvm/java-11-openjdk-amd64/bin/java 1101 auto mode
1 /usr/lib/jvm/java-11-openjdk-amd64/bin/java 1101 manual mode
2 /usr/lib/jvm/java-8-openjdk-amd64/jre/bin/java 1081 manual mode
You will usually want to just select the newest version of OpenJDK that is listed so you would type 0 and press enter. In some cases on some platforms you may want to switch to the official Oracle JDK although I strongly recommend sticking with OpenJDK!
First Run
The first time you run the server it will take a little longer to start since it is generating all the server data. If you try to log in before it fully starts you will get a connection timeout error. Watch for the line: “Timings Reset”. This is the last line that prints when the server is ready to rock and roll. At this point you will be able to connect successfully.
The very first time you log into the server it will be slow for about 1-2 minutes. This is because since nobody has logged in before the server has to scramble to generate all the chunks within your view distance (10 by default) and send them to you/store them. During this time you may not be able to see very far and if you try to destroy blocks there will be noticeable lag from when they break to when they actually disappear.
Don’t panic! This will go away within a couple of minutes as the Pi catches up with all the first time login stuff it needs to do. Performance stabilizes and it will feel very much like the offline experience after that.
If you are hosting for a few friends I’d recommend logging in for the first time right after you set up the server instead of having several people nail a blank server at first startup. This gets it out of the way and when everyone is ready to log in the starting area chunks will be fully fleshed out and the Pi just has to read them. It’s an order of magnitude faster for the Pi to read chunks than to generate and store chunks.
In my experience after the initial login exploring new parts of the server doesn’t cause any lag even though new chunks are being generated. The reason for this is that when you’re walking it’s really only having to generate a new chunk as you get close to the border instead of a huge square area of chunks in all directions and all at the same time like during the first login.
Benchmarking / Testing Storage
If you’re getting poor performance or just want to verify everything is working correctly you may want to run my storage benchmark with:
Now press Ctrl+X to exit nano and answer “y” to save. Now let’s run the script:
chmod +x SetupMinecraft.sh ./SetupMinecraft.sh
And the setup will run and install the version of Minecraft you set at the top of the file!
Changing Minecraft Client Version
If you are wisely running the “stable” branch instead of the “development” branch there will be times where you need to select the version of Minecraft to run otherwise you will get an error message that your client is outdated when you try to log in.
Fortunately this is very easy. Open up the Minecraft launcher and instead of hitting “Play” choose “Launch Options” in the menu at the top of the window. It will look like this:
Minecraft Launcher “Launch Options” Tab
Click the “Add new” button and pick which version you want to add. You can optionally gave it a name or just click save.
Now when you go back to the “News” tab you will see a dropdown arrow where you can select which version of Minecraft you want to play!
Start, Stop and Restart Server
The server can be started, stopped and restarted two different ways. You can use the provided scripts in the Minecraft folder or you can use systemctl. Here are the commands:
The server backs up each time it starts. This helps you recover easily if something goes wrong. This system works best if you configured the server to restart daily since it means you will have a backup every day.
To access these backups type:
cd ~/minecraft/backups ls
When a backup is made the filename will be the date and time the backup was taken. If you need to restore a backup it’s very easy. Substitute the timestamp in my example to the backup you want to roll back to. Type:
cd ~/minecraft
./stop.sh
rm -rf world world_nether world_the_end
tar -xf backups/2019.02.15.22.06.30.tar.gz
./start.sh
Your world has now been restored! It’s a good idea to download these backups off the Pi periodically just in case the Pi’s storage fails.
Scheduled Daily Reboots
The daily reboots are scheduled using cron. It’s very easy to customize the time your server restarts.
To change the time that the server restarts type: crontab -e
This will open a window that will ask you to select a text editor (I find nano to be the easiest) and will show the cronjobs scheduled on the Pi. The Minecraft one will look like the following:
0 4 * * * /home/ubuntu/minecraft/restart.sh
There are 5 fields here. The default restart time is set to reboot at 0 minutes of the 4th hour of the day (4 AM). The other 3 fields are left as * to represent every day of every month. Make any desired changes here and press Ctrl+X to exit nano and update the cronjob.
To remove the daily reboot simply delete the line and save.
Installing Mods / Plugins
The server supports plugins that are compatible with Bukkit / Spigot / Paper. A popular place that you can get plugins is at dev.bukkit.org where there are thousands of them!
To install a plugin you simply download the .jar to the minecraft/plugins folder and restart the server. For example, WorldGuard is a very popular plugin that lets you add protection to different areas of your server.
To install this plugin on our Minecraft server we would use the following commands:
cd ~/minecraft/plugins
curl -H "Accept-Encoding: identity" -H "Accept-Language: en" -L -A "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/90.0.12.212 Safari/537.36" -o worldguard.jarhttps://dev.bukkit.org/projects/worldguard/files/latest
sudo systemctl restart minecraft
The reason the middle line is so long is that “robots” (roughly anything that isn’t a web browser being used by a user in this context) including scripts and utilities are blocked by the Bukkit server. The extra parameters we’re including in this line will add the location (-L) flag as well as a user agent and an identity / language header which will allow us to fetch the files without getting a 403 forbidden error.
Make sure to change “-o worldguard.jar” (second to last parameter) and the URL (very last parameter) to match the project you want to download.
The server will restart and the plugin will be installed. It’s that simple! To use the plugin refer to the documentation on the plugin download page to find out which commands you use to configure/interact with it.
Warning: be advised that plugins are the #1 issue for performance degradation on Minecraft servers. This isn’t because all plugins are bad. Some plugins are coded very inefficiently or perform features that require a lot of hooks in the code.
You should be careful about what plugins you install on the server and if you start having bad performance disable your plugins one by one until you find the culprit!
Reconfigure / Update Scripts
The scripts can always be reconfigured and updated by downloading the latest SetupMinecraft.sh and running the installer again. It will update all of the scripts in the Minecraft directory and reinstall the startup service for you.
Running SetupMinecraft.sh again will also give you a chance to reconfigure options such as the memory dedicated to the server, daily reboots, starting the server on boot, etc.
This will not overwrite your world or any other data so it is safe to run!
Port Forwarding
If everyone on your server is on the same LAN or WiFi network as you then you don’t need to do this. If you want people to connect from outside your local network then you need to set up port forwarding on your router.
The process for this is different for every router so the best thing to do is just look at your router and find the model # and put that in google with port forwarding for easy instructions on how to do it for your specific router.
You want to forward port 25565. The type of connection is TCP if your router asks. Once you do this people will be able to connect to your Minecraft server through your public IP address. This is different than your local IP which is usually a 192.x.x.x or 10.x.x.x. If you don’t know what that is just go to google and type “what’s my ip” and Google will kindly tell you!
Wired vs. Wireless
Going with an ethernet (wired) connection is going to be faster and more reliable. There’s so much wireless traffic and other interference in the air that running your server on WiFi is not recommended.
Even if it is working great 99% of the time it can ruin your experience very quickly if the WiFi drops for a couple of seconds and you get blown up by a creeper!
All that being said, the server works fine on wireless. The script will work fine as is with a wireless connection.
Upgrading
PLEASE BACK UP YOUR SERVER FIRST! The server makes automated backups by default for you in the backups folder but I recommend you back up the entire server folder yourself (basically the entire minecraft folder) any time you attempt to upgrade or downgrade. If you need to roll back to older versions it won’t work without a backup from that version or older!
The easiest way to upgrade an installation is to download the latest SetupMinecraft.sh and run it. This will automatically upgrade you to the latest version.
Upgrading and downgrading to versions that aren’t the default the script chooses is pretty simple. Simply change the Version line at the top in the SetupMinecraft.sh script:
#!/bin/bash # Minecraft Server Installation Script - James A. Chambers - https://jamesachambers.com # More information at https://jamesachambers.com/raspberry-pi-minecraft-server-script-with-startup-service/ # GitHub Repository: https://github.com/TheRemote/RaspberryPiMinecraft
# Minecraft server version Version="1.16.1"
Edit this file in your favorite text editor (you can use nano or vi on the Pi like nano SetupMinecraft.sh) and change the Minecraft version to what you want.
Downgrading
PLEASE RESTORE USING A BACK UP FROM THE VERSION YOU ARE DOWNGRADING TO
If you are having problems on a newer version of Minecraft and want to downgrade you can do so using a complete backup of your server before you ran it on a newer version.
The reason you can’t take server data that has been touched by a version such as 1.17 and go back to 1.16 is that the new version adds all sorts of new data types/structures for the new content into your server data files. If you try to roll back the old versions of the Minecraft server will not understand these data types since they didn’t exist in that version and will crash.
As long as you use a backup for your server files from that version (or older) it’s as simple as changing the version in SetupMinecraft.sh just like I show in the “Upgrading” section.
You can upgrade any old version of Minecraft to any version, but again make sure you have a backup first as it is a one way street and you will need that backup if you want to roll back!
Troubleshooting Note – Oracle Virtual Machines
A very common problem people have with the Oracle Virtual Machine tutorials out there that typically show you how to use a free VM is that the VM is much more difficult to configure than just about any other product / offering out there.
It is because there are several steps you need to take to open the ports on the Oracle VM. You need to both:
Set the ingress ports (TCP/UDP) in the Virtual Cloud Network (VCN) security list
*and* set the ingress ports in a Network Security Group assigned to your instance
Both of these settings are typically required before you will be able to connect to your VM instance. This is purely configuration related and has nothing to do with the script or the Minecraft server itself.
I do not recommend this platform due to the configuration difficulty but the people who have gone through the pain of configuring an Oracle VM have had good experiences with it after that point. Just keep in mind it’s going to be a rough ride through the configuration for most people.
Troubleshooting Note – Hyper-V
There is a weird bug in Hyper-V that breaks UDP connections on the Minecraft server. The fix for this is that you have to use a Generation 1 VM with the Legacy LAN network driver.
Version History
To view the version history check out the GitHub README here:
1,112 thoughts on “Raspberry Pi Minecraft Server Setup Script w/ Startup Service”
Sukh Singh Oberoi
love you. i was using cuberite b4 but my frnds wanted 1.16.5 thnx to u they have a personal server and i got the mod role on the discord server. at first i cudnt use commands as i kept writing /help, /op i got worried. then i forgot to add the slash one time and it worked. lmao.
Run SetupMinecraft.sh again and turn the memory you’re allocating to the server lower. It sounds like it’s not leaving enough so when a second person joins the process gets terminated. Go ahead and turn it down and you should be fine!
Hi James,
First of all, thanks for this amazing software, but I have a question: what do you think about using a light world generator plugin such as Terra, that runs really similar to the original one? Terra Plugin link
I think that would work perfectly! The important thing is that it generates the areas you’re going to be playing in before you actually go there for the first time. Otherwise it has to generate the chunk completely and store it to the disk which is heavy for both the CPU in calculations and the storage!
It looks like this will serve perfectly and does look like it does the exact same thing as the old plugin!
You’ll still need a chunk generator when using Terra. Terra lets you create a world to your specifications but doesn’t pre-generate chunks. Under the “Features -> Performance” it mentions using Chunky for generation. Chunky gets a thumbs up by me, I’ve used it to good success on a Pi (though I would advise some active cooling for the Pi, a fan pointed at it works, while Chunky is running).
That looks perfect! It accomplishes exactly what we want to which is pregenerate the chunks and not do that work when people are trying to play. Thanks for posting it!
long version: I started my first private Minecraft Server on 1.14, running a Raspberry Pi 2 with Raspian 32bit on a SD card. Just by doing your step-by-step tutorial and it worked quite good. Now nearly 2 years later my Private Server aged very well to 1.16.5 and grew up to an Raspberry Pi 4 4GB with ubuntu 20.10 64bit booting from a SSD. Just by doing your step-by-step tutorials and its working flawlessly! I’m running a multiverse with 10 worlds and a bunch of portals and its absolutely amazing. I don’t think that I could have done it without your outstandig work. So the end of the long version is: THAAAAANK YOUUUUU!!!!!
The only script that works for me is the SetupMinecraft.sh, so I have to run that everytime. Also where is the world that the Setup script located? I have a world folder in that minecraft folder but that server launches with a different world and I’d like to back it up.
The name of the folder will be what is in your server.properties. By default it will be world. It’s determined by this line here:
level-name=world
It’s going to use whichever folder you have in there. It will also create two other folders named world_nether and world_end depending on your server label for “The Nether” and “The End” if you were using the Spigot/Paper server on Windows instead of vanilla. This can make the folder it’s using a lot easier to spot but for a definitive answer (even on servers that were running on vanilla) check server.properties.
Change this line to the right world folder that you want to load. You could also just rename your folders, but I would just change the level-name=world line in server.properties to match what you were already using before. You should be able to find what it is using in there now under level-name= from your old server.properties as well. Hopefully this helps!
I’m trying to find where the world folder that the setup script creates is located, since that world folder that it’s there is a different one. Wanted to know how to back it up.
It creates a backup each time you start the server in the backups folder. There should be a bunch of copies in there if you have been using it for a while. Going in there and pulling a copy with a date from before you attempted to try and merge anything should be the old original world folder.
It will only use the “world” folder unless you’ve changed level-name= in properties. If the world that is in the world folder is not the right world then it got replaced and you will need to go to the backups. If you overwrote or copied over the old world folder this would happen for example. It’s not stored in a separate/special location. It’s just the defaults.
I would back up everything you are doing before you do anything else. Take a full backup of the ~/minecraft folder as a snapshot before making any more changes. We haven’t located the old world you want to back up so it’s not ready for a merge yet. It sounds like you may have already overwrote parts of your server. Before you do anything else take a copy of everything!
I apologize if you already did this in advance and have full backups, but I wanted to add this in case anyone else is reading this later and attempting this. Backups backups backups, you WILL make mistakes especially if you’ve never done this before, or even if you’re a seasoned vet, even I still do!
So whatever technical issue the server is giving you is not important here. All that matters is do you have the server backup files for BOTH servers? Did you check the backups folder? If you overwrote the world folder and nothing is in your backups folder somehow then it’s unfortunately gone.
You can always delete the ~/minecraft folder (making sure you have backup copies of the entire folder (everything) before you do this) and set it up from scratch and restore the world folder from the backup of the server you want to use. This is the normal process for restoring backups (in the guide for a reference on the steps) and what I would definitely try. I would not try to bother fixing whatever is wrong with that merged setup. It’s not meant to be merged with different worlds occupying the same folder or anything like that.
I’d delete it and restore it from one of the backups and it should take care of it! Trying to fix/troubleshoot this will not make sense when it will only take a few minutes to restore it from a backup!
I had an old server that was also named world, accidently made this one cause I thought we lost the 1st one, so we made the 2nd one. Now the Setup.sh loads up the 2nd world and I want to backup this one but if I copy it over it’s the 1st one.
The backups folder only backed up the 1st world and not the one we’re on right now.
Are you running SetupMinecraft.sh as sudo? If you are (I thought I put in a check to not allow that, but maybe I did Bedrock and not this one yet) then I think I might know what is happening.
Can you type:
sudo su
cd /root
ls
and see if you see a Minecraft folder? If you do then what is happening is you are running the server as root instead of a regular user. This means that the server files in your ~/minecraft folder wouldn’t get used. It would be /root/minecraft instead.
If this is what is happening then the files just aren’t where we expected them to be but at least that will be where all of your 2nd server backups would be (in /root/minecraft/backups).
Michael
All I see in my root folder after ls is “snap”, though that was a great idea.
Michael
I haven’t run it as sudo but I still only see the 1st server’s files.
Your server should have backups of both the old and new server. It doesn’t make sense that every backup would only be the first server. Have you restarted it? Every time it restarts it should create a new backup.
So you’d have a bunch of older backups and then at one point when you switched over to the new server the backup files would start to contain the new world. Where are these backups going? Are there any other users setup on the Pi?
What folder does it say it’s running in if you do:
The backups have to be going somewhere. If the new server backups are not present in the folder (unless it has literally never been restarted yet) then we must not be looking in the right one! This would make sense with you having to use SetupMinecraft.sh to even start the server.
Unless…. you were also having permissions issues. Have you tried a
sudo chown -R youruser ~/minecraft
yet? Maybe it can’t even write the backups!
Michael
It’s going to the minecraft folder as well, but that’s also where the 1st files were, but I have restarted the server since it has made backups but only of the 1st server.
Those are the only world folders in play on my machine. If you see the same then those have to be your second world files and you can just zip them up or back them up however you’d like. I’d try backing it up that way and then restoring it and make sure it works first and if it does I would wipe your entire setup and do it from scratch with a backup restore. That should eliminate having to run SetupMinecraft.sh every time to start it which is definitely masking some sort of major problem here.
They *have* to exist for it to be possible for you to restart it. If those are the only ones I would definitely recommend double checking that that it is in fact restoring the first worlds files. It’s absolutely impossible for them to not exist anywhere! The automatic backup could just be broken from whatever is wrong that is making you have to run SetupMinecraft.sh. If this is the case then just manually backing up those world folders should do the trick!
J.D.
Hello James,
I didn’t know if my comment posted or not so I am trying again. Sorry if it is a double.
I was wondering how I could if possible to move the server world from one device to another.
I have tried to move just the world, world_nether and world_the_end folders over and the server tries to start. I go to screen -r minecraft and it tries to load then a bunch of red error lines come up and terminates the screen. I then tried to rename the world folders to smp just to be something different similar to the change minecraft server world video on a pi and changed the server.properties file to the world name=smp. Still didn’t work.
Log shows as follows: [19:46:15] [main/INFO]: Environment: authHost='https://authserver.mojang.com', accountsHost='https://api.mojang.com'>
[19:46:16] [main/FATAL]: Failed to start the minecraft server
java.nio.file.AccessDeniedException: ./smp/session.lock
at sun.nio.fs.UnixException.translateToIOException(UnixException.java:90) ~[?:?]
at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:111) ~[?:?]
at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:116) ~[?:?]
at sun.nio.fs.UnixFileSystemProvider.newFileChannel(UnixFileSystemProvider.java:182) ~[?:?]
at java.nio.channels.FileChannel.open(FileChannel.java:292) ~[?:?]
at java.nio.channels.FileChannel.open(FileChannel.java:345) ~[?:?]
at net.minecraft.server.v1_16_R3.SessionLock.a(SourceFile:37) ~[patched_1.16.4.jar:git-Paper-416]
at net.minecraft.server.v1_16_R3.Convertable$ConversionSession.(Convertable.java:218) ~[patched_1.16.4>
at net.minecraft.server.v1_16_R3.Convertable.c(Convertable.java:200) ~[patched_1.16.4.jar:git-Paper-416]
at net.minecraft.server.v1_16_R3.Main.main(Main.java:113) ~[patched_1.16.4.jar:git-Paper-416]
at org.bukkit.craftbukkit.Main.main(Main.java:276) ~[patched_1.16.4.jar:git-Paper-416]
at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:?]
at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:?]
at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?]
at java.lang.reflect.Method.invoke(Method.java:564) ~[?:?]
at io.papermc.paperclip.Paperclip.main(Paperclip.java:58) ~[paperclip.jar:?]
To me it looks like an authentication problem. Maybe the uuid.dat file?
I don’t know if I should try to take a backup of the world I am wanting to keep and put that into the folder?
Any advice would greatly be appreciated.
I have 4 family members that play on it and the pi just isn’t keeping up as much as I would like so I took an old macmini I had laying around with 8GB of ram and installed ubuntu server on it and was able to get the minecraft server to install and run perfectly, just can’t seem to figure out how to get the world we have been playing on the pi over to the macmini.
That looks like a fairly common permissions problem. Here’s a reference. Did you copy the files over as root? The server only runs as your regular user so you actually don’t want to copy them as root or you want to fix them.
You can set yourself as the owner recursively of the whole directory with this command:
sudo chown -R youruser ~/minecraft
Specifically it’s saying your server’s session file is locked (usually bad permissions or already in use) with this line:
You can copy the entire folder over. You just need to run SetupMinecraft.sh so that it adds my scripts into it that control it on the Pi. There is no difference between the server files on Windows and Linux. Java is always Java and runs on any platform with the same files that can support a Java Virtual Machine (JVM).
There is a difference in how permissions work on Windows and Linux though and it sounds like these ones need to be tweaked to be owned by your username! Give that a try first and let us know if it goes after that. I don’t think it’s a bad copy or you’d be getting a lot uglier of messages but this one looks to be permissions related!
So I was still having a small issue with the server starting up on reboot even though I had permissions for the folder it would ask for a password to run ./start.sh. I had to do sudo visudo and add my username at the bottom with the no password to get it to work. It all works like a dream now.
I did want to know how hard it would be to set it up as a bungeecord to run say survival and skyblock with a lobby. I know it would be basically 4 servers at one and each one with there own port number but I’m just wondering how it would do with reboots and getting them to start up at the right times.
I actually remember someone trying this a long time ago and I think the issue they ran into was with memory at the time. Now with an 8 GB Pi I think it should be theoretically possible!
I think you’ll be the first person to try it but I think it should work if you set some servers to a smaller amount of memory like for the lobby, etc. The main “meat and potatoes” servers should get the larger portions of memory.
Definitely let us know if you try this, I’d be fascinated to find out how it works out!
So, I was able to get the BungeeCord server working and was able to get the world we had been playing on running but it created new uuid’s for all the players so none of the player’s info was the same, it was like they just started. I was able to run a spigot world as well and had that as the lobby. It seemed to be running good with about 512M for the lobby and the bungeecord and put 6G to the main world. I couldn’t quite get the uuid’s to work correctly because I was using the plug-in essentials. So I just reverted it all back to just the 1 server for now until I get things ironed out with the bungeecord.
On earlier comments I saw that you were going to make it possible to choose the directory to install the Minecraft folder…I got the script a few weeks ago and was not given that option but that would be really nice to run all the worlds with this paper script and have bungeecord running. Is this still in the works or do I need to dive into changing SetupMinecraft.sh for a different directory?
Very nice! I did actually already add support for this to the Bedrock dedicated server where you can choose multiple folders. I think it has only come up once or twice for Java and that was one of the comments I believe related to it.
I’ll definitely increase this on the priority list since you were able to be successful setting up a multi-server environment. There was also little point to finishing this feature until the 8 GB Pis existed as even 4 GB Pis it’s going to be difficult (but still possible) to run 4 servers. Things have changed though and it seems worth implementing this!
J.D. Goodson
I was able to get it all working. I used the SetupMinecraft.sh for each server one at a time and moved them all to their own folder. went into the start.sh, stop.sh and restart.sh and changed all the directories as well as the screen names for each server accordingly changing the amount of ram for each server. i.e. Lobby server
# Switch to server directory
cd /home/pi/lobby/
# Check if server is already running
if screen -list | grep -q "\.lobby"; then
echo "Server is already running! Type screen -r lobby to open the console"
exit 1
fi
echo "Starting Lobby server. To view window type screen -r lobby."
echo "To minimize the window and let the server run in the background, press Ctrl+A then Ctrl+D"
"screen -dmS lobby java -jar -Xms400M -Xmx512M /home/pi/lobby/paperclip.jar"
I put 512M for the bungee server, 512M for the lobby, 2G for skyblock and 2G into survival.
This way it can backup each world when it starts up.
I only have 4 players that play at the moment.
I put all my plugins into the bungee and each world plugins folders and everything seems to be working great.
As of right now I have them all set to restart at the same time so hopefully they will all shutdown correctly and restart without messing everything up. I will let you know…
That’s excellent news! I’m glad all plugins and world folders are accounted for and working. It sounds like you’ve done it!
J.D. Goodson
Yup, All is up and running and works really good. I did a main restart script to give the servers a 5, 2 and 1 min warning for restart along with the normal you had of the 30, 7-1 second warnings. I had it do stop on all the world servers and ^c on bungee because “stop” doesn’t work for it. I only have 1 entry on crontab for the 1 restart script so if I wanted to change the time for restart it’s just the 1 entry. I have 4 systemctl services for the bungee server and each of the worlds, lobby, skyblock and survival to start up on boot up.
Everything seems to be working perfectly.
I’m going to work on getting a script ready for SetupBungee.sh which should be pretty easy. Let me know if you would like to see any of the scripts I messed with… Amazing work on your end! Thank you for all your hard work!
J.D.
Hello James, I was wondering how I could if possible to move the server world from one device to another without messing up. I have tried to move just the world, world_nether and world_the_end folders over and the server tries to start. I go to screen -r minecraft and it tries to load then a bunch of red error lines come up and terminates the screen. I am not able to see what the errors are. I was able to move all the files from plugins over but for some reason the world folders is what is giving it the issue. I don’t know if I should try to take a backup of the world I am wanting to keep and put that into the folder? Any advice would greatly be appreciated. I have 4 family members that play on it and the pi just isn’t keeping up as much as I would like so I took an old macmini I had laying around with 8GB of ram and installed ubuntu server on it and was able to get the minecraft server to install and run perfectly, just can’t seem to figure out how to get the world we have been playing on pi over to the macmini without it crashing.
love you. i was using cuberite b4 but my frnds wanted 1.16.5 thnx to u they have a personal server and i got the mod role on the discord server. at first i cudnt use commands as i kept writing /help, /op i got worried. then i forgot to add the slash one time and it worked. lmao.
Hey Suhk Singh Oberoi,
That’s awesome, I am glad you got it up and working easily! It’s a lot of fun. Enjoy!
It worked well for me till i invited my friend and the server just crashed im using a raspberry pi 4 with 8gb RAM
Hey Kike,
Run SetupMinecraft.sh again and turn the memory you’re allocating to the server lower. It sounds like it’s not leaving enough so when a second person joins the process gets terminated. Go ahead and turn it down and you should be fine!
Hi James,
First of all, thanks for this amazing software, but I have a question: what do you think about using a light world generator plugin such as Terra, that runs really similar to the original one?
Terra Plugin link
Hey Davide,
I think that would work perfectly! The important thing is that it generates the areas you’re going to be playing in before you actually go there for the first time. Otherwise it has to generate the chunk completely and store it to the disk which is heavy for both the CPU in calculations and the storage!
It looks like this will serve perfectly and does look like it does the exact same thing as the old plugin!
You’ll still need a chunk generator when using Terra. Terra lets you create a world to your specifications but doesn’t pre-generate chunks. Under the “Features -> Performance” it mentions using Chunky for generation. Chunky gets a thumbs up by me, I’ve used it to good success on a Pi (though I would advise some active cooling for the Pi, a fan pointed at it works, while Chunky is running).
That looks perfect! It accomplishes exactly what we want to which is pregenerate the chunks and not do that work when people are trying to play. Thanks for posting it!
Dear James,
short version: THANK YOU!
long version: I started my first private Minecraft Server on 1.14, running a Raspberry Pi 2 with Raspian 32bit on a SD card. Just by doing your step-by-step tutorial and it worked quite good. Now nearly 2 years later my Private Server aged very well to 1.16.5 and grew up to an Raspberry Pi 4 4GB with ubuntu 20.10 64bit booting from a SSD. Just by doing your step-by-step tutorials and its working flawlessly! I’m running a multiverse with 10 worlds and a bunch of portals and its absolutely amazing. I don’t think that I could have done it without your outstandig work. So the end of the long version is: THAAAAANK YOUUUUU!!!!!
hats off
stizn
The only script that works for me is the SetupMinecraft.sh, so I have to run that everytime. Also where is the world that the Setup script located? I have a world folder in that minecraft folder but that server launches with a different world and I’d like to back it up.
Hey Michael,
The name of the folder will be what is in your server.properties. By default it will be world. It’s determined by this line here:
level-name=worldIt’s going to use whichever folder you have in there. It will also create two other folders named world_nether and world_end depending on your server label for “The Nether” and “The End” if you were using the Spigot/Paper server on Windows instead of vanilla. This can make the folder it’s using a lot easier to spot but for a definitive answer (even on servers that were running on vanilla) check server.properties.
Change this line to the right world folder that you want to load. You could also just rename your folders, but I would just change the level-name=world line in server.properties to match what you were already using before. You should be able to find what it is using in there now under level-name= from your old server.properties as well. Hopefully this helps!
I’m trying to find where the world folder that the setup script creates is located, since that world folder that it’s there is a different one. Wanted to know how to back it up.
It creates a backup each time you start the server in the backups folder. There should be a bunch of copies in there if you have been using it for a while. Going in there and pulling a copy with a date from before you attempted to try and merge anything should be the old original world folder.
It will only use the “world” folder unless you’ve changed level-name= in properties. If the world that is in the world folder is not the right world then it got replaced and you will need to go to the backups. If you overwrote or copied over the old world folder this would happen for example. It’s not stored in a separate/special location. It’s just the defaults.
I would back up everything you are doing before you do anything else. Take a full backup of the ~/minecraft folder as a snapshot before making any more changes. We haven’t located the old world you want to back up so it’s not ready for a merge yet. It sounds like you may have already overwrote parts of your server. Before you do anything else take a copy of everything!
I apologize if you already did this in advance and have full backups, but I wanted to add this in case anyone else is reading this later and attempting this. Backups backups backups, you WILL make mistakes especially if you’ve never done this before, or even if you’re a seasoned vet, even I still do!
I’m having a kinda big issue, wondering if we could chat over discord or email?
So whatever technical issue the server is giving you is not important here. All that matters is do you have the server backup files for BOTH servers? Did you check the backups folder? If you overwrote the world folder and nothing is in your backups folder somehow then it’s unfortunately gone.
You can always delete the ~/minecraft folder (making sure you have backup copies of the entire folder (everything) before you do this) and set it up from scratch and restore the world folder from the backup of the server you want to use. This is the normal process for restoring backups (in the guide for a reference on the steps) and what I would definitely try. I would not try to bother fixing whatever is wrong with that merged setup. It’s not meant to be merged with different worlds occupying the same folder or anything like that.
I’d delete it and restore it from one of the backups and it should take care of it! Trying to fix/troubleshoot this will not make sense when it will only take a few minutes to restore it from a backup!
I had an old server that was also named world, accidently made this one cause I thought we lost the 1st one, so we made the 2nd one. Now the Setup.sh loads up the 2nd world and I want to backup this one but if I copy it over it’s the 1st one.
The backups folder only backed up the 1st world and not the one we’re on right now.
Hmmm, thanks for the additional information!
Are you running SetupMinecraft.sh as sudo? If you are (I thought I put in a check to not allow that, but maybe I did Bedrock and not this one yet) then I think I might know what is happening.
Can you type:
sudo sucd /root
ls
and see if you see a Minecraft folder? If you do then what is happening is you are running the server as root instead of a regular user. This means that the server files in your ~/minecraft folder wouldn’t get used. It would be /root/minecraft instead.
If this is what is happening then the files just aren’t where we expected them to be but at least that will be where all of your 2nd server backups would be (in /root/minecraft/backups).
All I see in my root folder after ls is “snap”, though that was a great idea.
I haven’t run it as sudo but I still only see the 1st server’s files.
Got it. That seemed like it had to be it!
Your server should have backups of both the old and new server. It doesn’t make sense that every backup would only be the first server. Have you restarted it? Every time it restarts it should create a new backup.
So you’d have a bunch of older backups and then at one point when you switched over to the new server the backup files would start to contain the new world. Where are these backups going? Are there any other users setup on the Pi?
What folder does it say it’s running in if you do:
sudo nano /etc/systemd/system/minecraft.serviceI have:
[Service]User=pi
WorkingDirectory=/home/pi/minecraft
The backups have to be going somewhere. If the new server backups are not present in the folder (unless it has literally never been restarted yet) then we must not be looking in the right one! This would make sense with you having to use SetupMinecraft.sh to even start the server.
Unless…. you were also having permissions issues. Have you tried a
sudo chown -R youruser ~/minecraftyet? Maybe it can’t even write the backups!
It’s going to the minecraft folder as well, but that’s also where the 1st files were, but I have restarted the server since it has made backups but only of the 1st server.
Well you could always just backup the current “world” folders here since the server has to exist somewhere and presumably those are the right ones.
You can also search with something like:
sudo apt install mlocate -ysudo updatedb
sudo locate level.dat
This will look for level.dat files which will be in each type of world folder.
If the server exists and you can log onto it/restart it then it has to have files somewhere. Mine looked like this:
pi@raspberrypi:~/minecraft $ sudo locate level.dat/home/pi/minecraft/world/level.dat
/home/pi/minecraft/world/level.dat_old
/home/pi/minecraft/world_nether/level.dat
/home/pi/minecraft/world_nether/level.dat_old
/home/pi/minecraft/world_the_end/level.dat
/home/pi/minecraft/world_the_end/level.dat_old
Those are the only world folders in play on my machine. If you see the same then those have to be your second world files and you can just zip them up or back them up however you’d like. I’d try backing it up that way and then restoring it and make sure it works first and if it does I would wipe your entire setup and do it from scratch with a backup restore. That should eliminate having to run SetupMinecraft.sh every time to start it which is definitely masking some sort of major problem here.
They *have* to exist for it to be possible for you to restart it. If those are the only ones I would definitely recommend double checking that that it is in fact restoring the first worlds files. It’s absolutely impossible for them to not exist anywhere! The automatic backup could just be broken from whatever is wrong that is making you have to run SetupMinecraft.sh. If this is the case then just manually backing up those world folders should do the trick!
Hello James,
I didn’t know if my comment posted or not so I am trying again. Sorry if it is a double.
I was wondering how I could if possible to move the server world from one device to another.
I have tried to move just the world, world_nether and world_the_end folders over and the server tries to start. I go to screen -r minecraft and it tries to load then a bunch of red error lines come up and terminates the screen. I then tried to rename the world folders to smp just to be something different similar to the change minecraft server world video on a pi and changed the server.properties file to the world name=smp. Still didn’t work.
Log shows as follows:
[19:46:15] [main/INFO]: Environment: authHost='https://authserver.mojang.com', accountsHost='https://api.mojang.com'>[19:46:16] [main/FATAL]: Failed to start the minecraft server
java.nio.file.AccessDeniedException: ./smp/session.lock
at sun.nio.fs.UnixException.translateToIOException(UnixException.java:90) ~[?:?]
at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:111) ~[?:?]
at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:116) ~[?:?]
at sun.nio.fs.UnixFileSystemProvider.newFileChannel(UnixFileSystemProvider.java:182) ~[?:?]
at java.nio.channels.FileChannel.open(FileChannel.java:292) ~[?:?]
at java.nio.channels.FileChannel.open(FileChannel.java:345) ~[?:?]
at net.minecraft.server.v1_16_R3.SessionLock.a(SourceFile:37) ~[patched_1.16.4.jar:git-Paper-416]
at net.minecraft.server.v1_16_R3.Convertable$ConversionSession.(Convertable.java:218) ~[patched_1.16.4>
at net.minecraft.server.v1_16_R3.Convertable.c(Convertable.java:200) ~[patched_1.16.4.jar:git-Paper-416]
at net.minecraft.server.v1_16_R3.Main.main(Main.java:113) ~[patched_1.16.4.jar:git-Paper-416]
at org.bukkit.craftbukkit.Main.main(Main.java:276) ~[patched_1.16.4.jar:git-Paper-416]
at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:?]
at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:?]
at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?]
at java.lang.reflect.Method.invoke(Method.java:564) ~[?:?]
at io.papermc.paperclip.Paperclip.main(Paperclip.java:58) ~[paperclip.jar:?]
To me it looks like an authentication problem. Maybe the uuid.dat file?
I don’t know if I should try to take a backup of the world I am wanting to keep and put that into the folder?
Any advice would greatly be appreciated.
I have 4 family members that play on it and the pi just isn’t keeping up as much as I would like so I took an old macmini I had laying around with 8GB of ram and installed ubuntu server on it and was able to get the minecraft server to install and run perfectly, just can’t seem to figure out how to get the world we have been playing on the pi over to the macmini.
Hey J.D.,
That looks like a fairly common permissions problem. Here’s a reference. Did you copy the files over as root? The server only runs as your regular user so you actually don’t want to copy them as root or you want to fix them.
You can set yourself as the owner recursively of the whole directory with this command:
sudo chown -R youruser ~/minecraftSpecifically it’s saying your server’s session file is locked (usually bad permissions or already in use) with this line:
java.nio.file.AccessDeniedException: ./smp/session.lockYou can copy the entire folder over. You just need to run SetupMinecraft.sh so that it adds my scripts into it that control it on the Pi. There is no difference between the server files on Windows and Linux. Java is always Java and runs on any platform with the same files that can support a Java Virtual Machine (JVM).
There is a difference in how permissions work on Windows and Linux though and it sounds like these ones need to be tweaked to be owned by your username! Give that a try first and let us know if it goes after that. I don’t think it’s a bad copy or you’d be getting a lot uglier of messages but this one looks to be permissions related!
You are amazing! Thank you so much, that worked perfectly!
No problem at all J.D., thanks for the kind words and have fun!
So I was still having a small issue with the server starting up on reboot even though I had permissions for the folder it would ask for a password to run ./start.sh. I had to do sudo visudo and add my username at the bottom with the no password to get it to work. It all works like a dream now.
I did want to know how hard it would be to set it up as a bungeecord to run say survival and skyblock with a lobby. I know it would be basically 4 servers at one and each one with there own port number but I’m just wondering how it would do with reboots and getting them to start up at the right times.
Any thoughts with that?
Hey J.D.,
I actually remember someone trying this a long time ago and I think the issue they ran into was with memory at the time. Now with an 8 GB Pi I think it should be theoretically possible!
I think you’ll be the first person to try it but I think it should work if you set some servers to a smaller amount of memory like for the lobby, etc. The main “meat and potatoes” servers should get the larger portions of memory.
Definitely let us know if you try this, I’d be fascinated to find out how it works out!
So, I was able to get the BungeeCord server working and was able to get the world we had been playing on running but it created new uuid’s for all the players so none of the player’s info was the same, it was like they just started. I was able to run a spigot world as well and had that as the lobby. It seemed to be running good with about 512M for the lobby and the bungeecord and put 6G to the main world. I couldn’t quite get the uuid’s to work correctly because I was using the plug-in essentials. So I just reverted it all back to just the 1 server for now until I get things ironed out with the bungeecord.
On earlier comments I saw that you were going to make it possible to choose the directory to install the Minecraft folder…I got the script a few weeks ago and was not given that option but that would be really nice to run all the worlds with this paper script and have bungeecord running. Is this still in the works or do I need to dive into changing SetupMinecraft.sh for a different directory?
Hey John,
Very nice! I did actually already add support for this to the Bedrock dedicated server where you can choose multiple folders. I think it has only come up once or twice for Java and that was one of the comments I believe related to it.
I’ll definitely increase this on the priority list since you were able to be successful setting up a multi-server environment. There was also little point to finishing this feature until the 8 GB Pis existed as even 4 GB Pis it’s going to be difficult (but still possible) to run 4 servers. Things have changed though and it seems worth implementing this!
I was able to get it all working. I used the SetupMinecraft.sh for each server one at a time and moved them all to their own folder. went into the start.sh, stop.sh and restart.sh and changed all the directories as well as the screen names for each server accordingly changing the amount of ram for each server. i.e. Lobby server
# Switch to server directorycd /home/pi/lobby/
# Check if server is already running
if screen -list | grep -q "\.lobby"; then
echo "Server is already running! Type screen -r lobby to open the console"
exit 1
fi
echo "Starting Lobby server. To view window type screen -r lobby."
echo "To minimize the window and let the server run in the background, press Ctrl+A then Ctrl+D"
"screen -dmS lobby java -jar -Xms400M -Xmx512M /home/pi/lobby/paperclip.jar"
I put 512M for the bungee server, 512M for the lobby, 2G for skyblock and 2G into survival.
This way it can backup each world when it starts up.
I only have 4 players that play at the moment.
I put all my plugins into the bungee and each world plugins folders and everything seems to be working great.
As of right now I have them all set to restart at the same time so hopefully they will all shutdown correctly and restart without messing everything up. I will let you know…
Hey J.D.,
That’s excellent news! I’m glad all plugins and world folders are accounted for and working. It sounds like you’ve done it!
Yup, All is up and running and works really good. I did a main restart script to give the servers a 5, 2 and 1 min warning for restart along with the normal you had of the 30, 7-1 second warnings. I had it do stop on all the world servers and ^c on bungee because “stop” doesn’t work for it. I only have 1 entry on crontab for the 1 restart script so if I wanted to change the time for restart it’s just the 1 entry. I have 4 systemctl services for the bungee server and each of the worlds, lobby, skyblock and survival to start up on boot up.
Everything seems to be working perfectly.
I’m going to work on getting a script ready for SetupBungee.sh which should be pretty easy. Let me know if you would like to see any of the scripts I messed with… Amazing work on your end! Thank you for all your hard work!
Hello James, I was wondering how I could if possible to move the server world from one device to another without messing up. I have tried to move just the world, world_nether and world_the_end folders over and the server tries to start. I go to screen -r minecraft and it tries to load then a bunch of red error lines come up and terminates the screen. I am not able to see what the errors are. I was able to move all the files from plugins over but for some reason the world folders is what is giving it the issue. I don’t know if I should try to take a backup of the world I am wanting to keep and put that into the folder? Any advice would greatly be appreciated. I have 4 family members that play on it and the pi just isn’t keeping up as much as I would like so I took an old macmini I had laying around with 8GB of ram and installed ubuntu server on it and was able to get the minecraft server to install and run perfectly, just can’t seem to figure out how to get the world we have been playing on pi over to the macmini without it crashing.
I have also tried moving the whole /minecraft folder over and that wouldn’t even try to start the server so I know that isn’t the right way. x_x