PCIe 1x NVMe on Raspberry Pi?! Compute Module 4 Guide

CableCC Vertical Adapter in Compute Module 4 IO Board
NVMe PCIe 1x Vertical Adapter in CM4 IO Board

I recently covered all the pieces you need for a complete setup to work with the Raspberry Pi Compute Module 4. Today I want to cover the whole reason I wanted to investigate the Compute Module 4: The PCI express capabilities!

In this guide I’ll cover a couple of 1x PCIe to NVMe adapters I picked up to try doing this with as well as full configuration and setup instructions. Let us begin!

Prerequisites

Raspberry Pi Compute Module 4 - Base Board
Raspberry Pi Compute Module 4 – Base Board

The Compute Module 4 by the Raspberry Pi Foundation is a single-board computer (SBC) that is meant to be used in embedded devices. It has many new capabilities that have not been seen on other Pis before such as a built in eMMC module (optional) and has PCI express capabilities when used with the IO board.

Links: Amazon.com*, AliExpress*, Amazon.ca*, Amazon.com.au*, Amazon.co.uk*, Amazon.de*, Amazon.es*, Amazon.fr*, Amazon.it*, Amazon.nl*, Amazon.pl*, Amazon.se*, Amazon.sg*

Make sure you’ve imaged your NVMe drive with an operating system of your choice such as Raspberry Pi OS, Ubuntu or your preferred distro. You may have to actually put the drive into a PC temporarily (you can use the 1x adapter in one) or if you have a USB to NVMe adapter (lots of Pi users should have one of these already) you’re good to go.

This guide will assume you’ve done this and the drive is prepped. The official Raspberry Pi Imager tool is a great choice to take care of imaging needs for you and is available for Windows / Mac OS X / Linux. Here’s a suggested drive if you don’t have one yet:

Samsung 970 EVO NVMe SSD
Samsung 970 EVO Plus NVMe SSD

The Samsung 970 EVO Plus is a fantastic drive and has fallen in price substantially. It’s widely available around the world. The smaller capacities (such as the 250GB version) of this drive are perfect for the Pi! This is the top performance option without going into the “Pro” series of the lineup which are much more expensive.

Links: AliExpress*, Amazon.com*, Amazon.ca*, Amazon.com.au*, Amazon.co.jp*, Amazon.co.uk*, Amazon.de*, Amazon.es*, Amazon.fr*, Amazon.it*, Amazon.nl*, Amazon.pl*, Amazon.se*, Amazon.sg*

You will also need a IO board that has a PCI express slot:

Raspberry Pi Compute Module 4 mounted in IO Board
Raspberry Pi Compute Module 4 – IO Board

This is essentially the “motherboard” of the compute module. This IO breakout board lets us work with the compute module and get the ports we need to interface with it. This includes a SD card slot for models that don’t have eMMC, a PCI express slot (very exciting), 2 USB ports and more.

Links: AliExpress*, Amazon.com*, Amazon.ca*, Amazon.com.au*, Amazon.co.jp*, Amazon.co.uk*, Amazon.de*, Amazon.es*, Amazon.fr*, Amazon.it*, Amazon.nl*, Amazon.pl*, Amazon.se*, Amazon.sg*

Power requirements are also an issue. If you are using a powerful (or power hungry) NVMe drive you will for sure need something like this:

12V DC 4A Power Adapter Supply
12V DC 4A Power Adapter Supply

Delivers a full 12V DC to the IO board so that there’s enough power to run very powerful NVMe drives / accessories

Links: AliExpress*, Amazon.com*, Amazon.ca*, Amazon.com.au*, Amazon.co.jp*, Amazon.co.uk*, Amazon.de*, Amazon.es*, Amazon.fr*, Amazon.it*, Amazon.nl*, Amazon.pl*, Amazon.se*, Amazon.sg*

If your NVMe drive is performing extremely slowly / booting into emergency mode / things like that it’s very likely that it’s not receiving enough power!

PCIe to NVMe 1x Adapters

I picked up two different style adapters from Amazon to test. The first one is a very simple vertical standing adapter. My full benchmark for this adapter is available here: Pi Benchmarks – #48606

Cablecc NGFF M-Key NVME SSD to PCI-E 3.0 1x Vertical Adapter
Cablecc NGFF M-Key NVME SSD to PCI-E 3.0 1x Vertical Adapter

The Cablecc 1x PCIe M.2 NVMe adapter sticks straight up out of the board. It doesn’t take up a lot of space and ends up being pretty compact (as long as you have vertical space!)

Links: Amazon.com*, Amazon.ca*, Amazon.com.au*, Amazon.co.jp*, Amazon.co.uk*, Amazon.de*, Amazon.es*, Amazon.fr*, Amazon.it*, Amazon.nl*, Amazon.pl*, Amazon.se*, Amazon.sg*

Next up we have an adapter that sits horizontally and comes with some optional mounting brackets. This adapter scored about 400 points higher (may be a slightly better chipset) and has a green LED indicator light (the cablecc has no light of any kind). Benchmark available here: Pi Benchmarks – #48607

Xiwai PCI-E 3.0 x1 M.2 NGFF M-Key SSD NVMe PCI Express Adapter Card
Xiwai PCI-E 3.0 x1 M.2 NGFF M-Key SSD NVMe Adapter Card

The Xiwai PCI-E 3.0 x1 Lane to M.2 NGFF M-Key SSD NVMe AHCI adapter card sits horizontally and comes with a couple of different size shrouds meant for mounting (not required). This takes up less vertical space but more horizontal space.

Links: AliExpress*, Amazon.com*, Amazon.ca*, Amazon.com.au*, Amazon.co.jp*, Amazon.co.uk*, Amazon.de*, Amazon.es*, Amazon.fr*, Amazon.it*, Amazon.nl*, Amazon.pl*, Amazon.se*, Amazon.sg*

Changing Boot Order

While the PCIe to NVMe adapters are pretty much plug and play in this setup switching the boot order of the Compute Module 4 is a little bit more in depth. It requires using the rpiboot tool on a different computer / Pi with the CM4’s “disable eMMC boot” jumper (j2) bridged with the pin directly below it so the Pi is able to boot into USB mass storage mode and be flashed with bootloader/firmware updates.

To do this we need to get a copy of the rpiboot/usbboot utility’s source tree. If you followed my CM4 setup guide you will already have the ‘usbboot’ folder and can skip cloning. If you are using Windows you will need to do this on your Pi and we will copy the final resulting folder over to Windows (for now just do the instructions on your Pi).

git clone --depth=1 https://github.com/raspberrypi/usbboot
cd usbboot
make

Now we’re going to enter the ‘recovery’ subdirectory and edit the bootloader configuration like this to change the boot priority:

cd recovery
sed -i -e '/^BOOT_ORDER=/ s/=.*$/=0xf25416/' boot.conf
./update-pieeprom.sh

You can also change boot.conf manually using nano followed by running ./update-pieeprom.sh. The boot type for PCI express is 6, so that should be your first type (which means it should be the number at the end of the string like I have in the above example) if you want to boot from PCI express.

(Optional) Choose / Update Firmware Version

The CM4 will have the exact firmware that is in your git source tree as the file “pieeprom.original.bin” inside the “recovery” folder at the end of this process.

We need to use the rpiboot utility to update the firmware. I will use the latest firmware at time of writing but check for the latest firmware at: the official rpi-eeprom Raspberry Pi GitHub Repository (if there is a newer one replace the pieeprom-2022-07-26.bin in the curl command below with the newer version file name).

Use these commands (from inside the usbboot/recovery directory):

rm -f pieeprom.original.bin
curl -L -o pieeprom.original.bin https://github.com/raspberrypi/rpi-eeprom/raw/master/firmware/stable/pieeprom-2022-07-26.bin
./update-pieeprom.sh

Mine looked like this when updating from my Pi 400:

pi@pi400:~/usbboot/recovery $ ./update-pieeprom.sh
+ /home/pi/usbboot/tools/rpi-eeprom-config --config boot.conf --out pieeprom.bin pieeprom.original.bin
+ set +x
new-image: pieeprom.bin
source-image: pieeprom.original.bin
config: boot.conf
pi@pi400:~/usbboot/recovery $

(Optional) Further Bootloader Configuration Changes

If there are any other bootloader parameters you would like to change you can do so using the file boot.conf like this (from inside the usbboot/recovery directory):

nano boot.conf
Make changes and press Ctrl+X then type 'y' to save
./update-pieeprom.sh

Flashing New Boot Order / Firmware / Configuration

We are now ready to run the rpiboot utility and use it to flash the new bootloader configuration and firmware to our Pi. You should still be in the “recovery” directory from the previous steps. Go to the base of the “usbboot” directory with:

$ cd ..
$ ls
bin2c    debian      imager   main.c    msd   Readme.md  rpiboot
bin2c.c  fmemopen.c  LICENSE  Makefile  recovery   win32

You should see the “rpiboot” utility like the above example if you’re in the base of the usbboot directory. If your host PC you will be plugging the USB cable into for flashing runs Linux use the command:

sudo ./rpiboot -d recovery

Make sure your Compute Module 4 IO board’s “disable MMC boot” jumper J2 is bridged with the lower pin to disable eMMC boot. Now connect the power:

api@pi:~/usbboot $ sudo ./rpiboot -d recovery
Loading: recovery/bootcode4.bin
Waiting for BCM2835/6/7/2711...
Loading: recovery/bootcode4.bin
Sending bootcode.bin
Successful read 4 bytes
Waiting for BCM2835/6/7/2711...
Loading: recovery/bootcode4.bin
Second stage boot server
Loading: recovery/config.txt
File read: config.txt
Loading: recovery/pieeprom.bin
Loading: recovery/pieeprom.bin
Loading: recovery/pieeprom.sig
File read: pieeprom.sig
Loading: recovery/pieeprom.bin
File read: pieeprom.bin
Second stage boot server done
pi@pi:~/usbboot $

(Optional) Windows Specific Instructions

If you are using Windows transfer the “recovery” folder you generated using the Pi over to Windows and run it in “Command Prompt” like this (make sure you’ve installed the rpiboot utility for Windows first, see my CM4 setup guide for links/instructions):

"C:\Program Files (x86)\Raspberry Pi\rpiboot.exe" -d recovery

or you can fully qualify your paths with:

"C:\Program Files (x86)\Raspberry Pi\rpiboot.exe" -d "C:\YourPathTo\recovery"

and connect the IO board (with the disable eMMC boot jumper set). You will see the same output as the Linux example above and the CM4 will be updated!

Preconfigure NVMe Device for CM4

If you attempt to boot now you will not have working USB ports, ssh, or any wireless configuration. We can preconfigure your NVMe device by plugging the device into a computer / Pi. You should see the “boot” volume where we can preconfigure our CM4 to be working right from the start.

Enable USB Ports

When mounted in the IO board the USB ports will not function without making a change to config.txt and adding an overlay.

Add the following line to config.txt:

dtoverlay=dwc2,dr_mode=host

After adding this line the two USB ports (as well as the “External USB” header) will function the next time the CM4 boots.

Enable SSH

It’s very useful to have SSH enabled when working with the Compute Module 4. It is enabled simply by creating an empty file named:

ssh

in the root folder of the “boot” volume (the top-most folder of the drive where start4x.elf, fixup.dat and those files are located)

Now when the Pi starts up SSH will automatically be enabled!

Preconfigure WiFi / Wireless

You can also preconfigure the Compute Module 4 (and any Pi) by creating wpa-supplicant.conf at the base of the “boot” volume like we did with “ssh” file.

Create a new file named wpa-supplicant.conf that contains the following:

ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev
country=US
update_config=1

network={
 ssid="YourNetwork"
 psk="YourPassword"
}

When this file is created in the base of the “boot” volume it will automatically be applied to the Pi upon the next startup. Make sure to adjust your country=US line to your own country as this can impact what channels and functionality are available from your WiFi card!

First Boot

You are now ready to boot your Compute Module 4. Go ahead and remove the jumper now from J2 and the pin below it and connect your prepped NVMe drive. If you’re using a monitor connect it to the IO board first before turning on the power.

Now connect power to the IO board and the PCIe/NVMe boot process will start. Your OS should boot with your preconfigured settings! My first boot was a little sluggish (most likely first boot operations on your drive) so give it a little bit of extra time here before assuming it failed.

You should verify your boot device by running:

sudo mount | grep "/dev/"

Make sure that the first line (usually your root) is something like /dev/nvme0n1p2 (the NVMe drive) and not /dev/mmcblk0p2 (that would be the eMMC or a SD card)!

Benchmarking / Testing Storage

Once you’ve booted up you can verify your drive’s performance using my storage benchmark with:

sudo curl https://raw.githubusercontent.com/TheRemote/PiBenchmarks/master/Storage.sh | sudo bash

If you search for the model of your drive / eMMC / etc. on Pi Benchmarks you can compare your score with others and make sure the drive is performing correctly!

Verify Bootloader / Firmware

You can verify your firmware version once you boot the Compute Module 4 by running rpi-eeprom-update which should look like this:

sudo CM4_ENABLE_RPI_EEPROM_UPDATE=1 rpi-eeprom-update

BOOTLOADER: up to date
   CURRENT: Tue 06 Jul 2021 10:44:53 AM UTC (1625568293)
    LATEST: Tue 06 Jul 2021 10:44:53 AM UTC (1625568293)
   RELEASE: stable (/lib/firmware/raspberrypi/bootloader/stable)
            Use raspi-config to change the release.

  VL805_FW: Using bootloader EEPROM
     VL805: up to date
   CURRENT:
    LATEST:

The firmware version for “CURRENT” should match the exact version you used for pieeprom.original.bin in our curl command we used when we were preparing the “nvme” folder earlier regardless of what is available in the repository.

Conclusion

These are by far the highest benchmarking scores I’ve ever got and at a score of nearly 20,000 it put me on the top scores page and was definitely well worth the setup and configuration!

I’m excited to experiment more with the PCI express capabilities and see what more the Compute Module 4 is capable of. I also have ordered a 8 GB CM4 that has eMMC as well as the built in WiFi (missing on my current model and it’s only a 2GB) which should let me experiment with some of the other smaller IO boards available and some of the other compute module specific capabilities that look really exciting as well.

I have 1x PCI risers that I use for cryptocurrency mining with GPUs that would theoretically allow me to connect some interesting things like a GPU, a Intel Optane 900p PCI express drive, and a few other wild ideas! This is just scratching the surface of what the PCIe capabilities could enable on the Pi.

Other Resources

Definitely don’t miss my Shapes, Sizes and Features of Compute Module 4 IO Boards guide to see which IO boards may work best for your project

For an explanation of the Pico W (a microcontroller) check out my Pico W Explained article or if you want to jump right into the action and see what it’s like to work with a Pico check out my Pico W Getting Started guide

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Russel
Russel
2 years ago

So, if the PI can’t boot from the NVME, because I did something wrong in the above procedure, will I be able to boot from the EMMC? I just have to remove the NVME?

Russel
Russel
2 years ago

Ok, so I’m booting from NVME. I also enabled the serial console and ssh. The desktop comes up but does not respond to my USB keyboard and mouse. I did add “dtoverlay=dwc2,dr_mode=host” to the /boot/config.txt (last line in the file).

# Russ stuff...
enable_uart=1
dtoverlay=dwc2,dr_mode=host

No luck. My keyboard/mouse work on the EMMC boot.
I can ssh in and the I can also log in with the serial. So, I have the PI command line.

I’ve also proven I am booting from the NVME.

I’m almost there. Any suggestions?

Russ

Russel
Russel
2 years ago
Reply to  Russel

Here the output from “lsusb::

pi@raspberrypi:~ $ lsusb
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
pi@raspberrypi:~ $

Russel
Russel
2 years ago
Reply to  Russel

Never mind.

I just rebooted again and it works.

Your above instructions are great! Thank you for providing them.

Now, on to testing the NVME performance…

Russ

Matt
Matt
2 years ago

Hello! I have tried this so many times and am writing here as a last ditch effort so hopefully someone hears me! I’d even be willing to provide financial compensation for your time! My first step seemed as it was going well but:

$ git clone --depth=1 https://github.com/raspberrypi/usbboot
cd usbboot
make
Cloning into 'usbboot'...
remote: Enumerating objects: 71, done.
remote: Counting objects: 100% (71/71), done.
remote: Compressing objects: 100% (59/59), done.
remote: Total 71 (delta 7), reused 38 (delta 2), pack-reused 0
Receiving objects: 100% (71/71), 20.61 MiB | 906.00 KiB/s, done.
Resolving deltas: 100% (7/7), done.
cc -Wall -Wextra -g -o bin2c bin2c.c
./bin2c msd/bootcode.bin msd/bootcode.h
./bin2c msd/start.elf msd/start.h
./bin2c msd/bootcode4.bin msd/bootcode4.h
./bin2c msd/start4.elf msd/start4.h
cc -Wall -Wextra -g -o rpiboot main.c

pkg-config --cflags --libs libusb-1.0 -DGIT_VER="\"d49a1a2d\"" -DPKG_VER="\"20220111~130126\""
Package libusb-1.0 was not found in the pkg-config search path.
Perhaps you should add the directory containing `libusb-1.0.pc'
to the PKG_CONFIG_PATH environment variable
No package 'libusb-1.0' found
main.c:1:10: fatal error: libusb.h: No such file or directory
1 | #include
| ^~~~~~~~~~
compilation terminated.
make: *** [Makefile:4: rpiboot] Error 1

I proceeded with the second step but to no avail… see below.

pi@raspberrypi:~/usbboot $ cd nvme
sed -i -e '/^BOOT_ORDER=/ s/=.*$/=0xf25416/' boot.conf
./update-pieeprom.sh
bash: cd: nvme: No such file or directory
sed: can't read boot.conf: No such file or directory
bash: ./update-pieeprom.sh: No such file or directory

Thanks so much for your time. I’ve poured so much time into this and am trying my best here! I hate asking for help.
Sincerely,
Matt

Matt
Matt
2 years ago

Thanks so much for your detailed reply and your time, James. I see how prompt you were to and that just speaks to the quality of your forum here, sir. So from a stranger, great work! Your blogs have inspired me to try a lot and fail a lot but THATS OK! That’s how we learn. Ok anyways. I gave up for a little bit after trying the updated way. Then when doing that, I now have the 1/29/22 version of raspiboot so I thought I remember reading that I can’t undo that update now. I may be wrong on that. I have so much info that I’m having trouble keeping it straight!

Right now, I have a 2TB M key NVME plugged into a usb3.0 adapter (actually the one you have pictured in another one of your blogs – impossible to find right now) and that is plugged into the 2.0 port. I know, probably makes you cringe reading it! It does for me too lol 😂 I have another spare NVME and I’m going to image a copy of the latest 64 bit raspberry pi os because I’ve been using the latest image on raspberry pi imager which is 32 bit.

You’re saying that this may solve the problem by itself because it has the latest firmware? Also if that doesn’t work, I’ll try to start fresh and download the July or august 2021 usbboot file and try to follow your instructions that way. I am fairly new to this but am trying my best and thanks again for all of the effort and information, James.

Sincerely
Matt

Matt
Matt
2 years ago

Hey James,
I tried again and am not sure what I’m missing. So I downloaded Raspberry Pi OS to my NVME. Does it need to be in any certain format (FAT or NTFS)? I adjusted the boot configuration to 0x6 (6 being nvme) and then saved and took it from my usb 3.0 adapter to the nvme 1x adapter and its still not reading it. It goes from SD card to network and loops and doesnt boot because I don’t have anything plugged into the SD card. You said that you updated the CM4 to the latest firmware using the recovery folder. I know where to update the NVME boot but how do you update the firmware from here? Also, how does the system know to follow the directions of this folder to boot? I ask because I’ve tried to edit the boot.conf file several times and it doesn’t seem to do anything. Thanks again for everything, James and thanks for your hope in me and your patience! I have all of the required things I need except for the know-how but really want this to boot from NVME.
Thanks for everything and you’re awesome!
-Matt

Matt
Matt
2 years ago
Reply to  Matt

0xf6**

Matt
Matt
2 years ago

Hey again, I’ve used usbboot before when flashing all of the contents of my Nebra Helium Miner off of it’s emmc to a nice fast SD card. It worked fine and it was straight forward using windows and usbboot because all I was doing is flashing the emmcs contents onto the sd card. This is a little more complicated to me (even though I just may be making it that way).

This time I’m working on a raspberry pi 4 as the host and am trying to do it via Linux and am following your instructions step by step beginning with your “Full Compute Module 4 Setup and Imaging Guide” Tutorial and I am running into a wall. I imaged a fresh copy of Raspian 64 bit and installed the updates at the beginning that it gave me the option to install and besides that, I started right away with the tutorial’s instructions.

pi@raspberrypi:~ $ git clone --depth=1 https://github.com/raspberrypi/usbboot
cd usbboot
make
ls
fatal: destination path 'usbboot' already exists and is not an empty directory.
cc -Wall -Wextra -g -o rpiboot main.c

pkg-config --cflags --libs libusb-1.0 -DGIT_VER="\"d49a1a2d\"" -DPKG_VER="\"20220111~130126\""
bin2c eeprom-erase main.c Readme.md secure-boot-example tools
bin2c.c fmemopen.c Makefile recovery secure-boot-msd win32
debian LICENSE msd rpiboot secure-boot-recovery
pi@raspberrypi:~/usbboot $ sudo make install
install -m 755 rpiboot /usr/bin/
install -d /usr/share/rpiboot
install -m 644 msd/bootcode.bin /usr/share/rpiboot/
install -m 644 msd/bootcode4.bin /usr/share/rpiboot/
install -m 644 msd/start.elf /usr/share/rpiboot/
install -m 644 msd/start4.elf /usr/share/rpiboot/
pi@raspberrypi:~/usbboot $ ./rpiboot
RPIBOOT: build-date Feb 4 2022 version 20220111~130126 d49a1a2d
Waiting for BCM2835/6/7/2711...
Loading embedded: bootcode4.bin
Permission to access USB device denied. Make sure you are a member of the plugdev group.

The above line is the wall I’m running into. I’ve tried with many USB cords including some thick ones definitely used for data transfer as I’ve used them for the usbboot on windows and it recognized the mass media. Thanks again for all of your time.

Sincerely,
Matt

Matt
Matt
2 years ago

Yah great! I’m going to try that. Hey speaking of bobcat I saw that you wrote a tutorial including the bobcat 300. Do you know what that runs off of. With many other helium miners, it’s obvious what they run off of (pi 4 for raks, cm3 for Nebra, pi 4 also for sensecap m1) but I’m still very unsure about what the bobcat is. It looks like a cm4 but isn’t of course. They boast a quad core processor like the cm4 and it looks like they have the rocketchip for their processor which as you know is the chip used by some of the cm4 competitor boards.

Bobcats “cm4 type” board is soldered on so if you have problems, you would have to be unsoldering and soldering parts. If the emmc fails, the bobcat does have an sd card slot and a slave USB port so it appears as if it would be possible to upgrade the stock emmc to an sd if it failed. Just figured id pick your brain about these things since.. well you’re the perfect person to talk with about it haha. Talk to you soon after I try what you’ve suggested.

Matt
Matt
2 years ago
Reply to  Matt

Ohhhhh my… THANK THE RASPBERRY PI GODS!! You helped me out so much and I finally figured it out. Now I have one of the best raspberry pi setups possible at the moment and a very nice 3D glow-in-the-dark case I made for the cm4. I also have the fan installed on the cpu and am able to mess around with the fan speed and such. I have the 64 bit raspian setup on the 2tb nvme and this thing is FAST!!!

THANK YOU SO MUCH. THANK YOU THANK YOU THANK YOU!! Its so hard to find someone who is willing to lend such a helping hand like you did for me. Thanks again for that. I look forward to your response about the helium miner post I just posted.
Sincerely,
Matt

Matt
Matt
2 years ago
Reply to  Matt

Category Test Result
HDParm Disk Read 349.01 MB/s
HDParm Cached Disk Read 348.59 MB/s
DD Disk Write 254 MB/s
FIO 4k random read 39309 IOPS (157236 KB/s)
FIO 4k random write 16636 IOPS (66547 KB/s)
IOZone 4k read 116196 KB/s
IOZone 4k write 69966 KB/s
IOZone 4k random read 37408 KB/s
IOZone 4k random write 104396 KB/s

Score: 19634

AGAIN THANK YOU SO MUCH SIR!! I made it on page two of the highest bench-marked scores! Alias
“Mursch”.

BlackSurimi
BlackSurimi
2 years ago

Hey 👋
Is it possible to Plug the SSD just in to the io board and have already a working System like in article before? And an other question is: after i Set the Comput Module 4 with eMMC in the rpiboot-System like in the article befor and then just Flash the eMMC with an OS like Windows?
Thanks if you answer me.

BlackSurimi
BlackSurimi
2 years ago

Hey James.
I didn‘t thought that you answer so fast, so I am very happy.
Yes every single word helps me but I don‘t know wich changes in the config.txt I have to make and where I can find them?
Thanks for your help!

Lazvon
Lazvon
2 years ago

Hi James,

Been trying out a few different WD Black SN750 and noticing that the “SE” (aka Gen4 I believe) don’t show up in the results when I submit them. I’ve a both G3 and G4 versions of the 250G one and the G3 shows up, but not the G4 which is a bit faster. G4 500GB doesn’t show up, but the G3 1TB does show up. Any ideas? Doesn’t show up on Latest Results page, or my user page (Lazvon).

This is an interesting thing to play with. Seeing Pi’s run this fast with reliable storage is really cool. I’m running an 8GB w/WiFi w/32GB eMMC (useless 😉 ) board on an CMIO. I have a Waveshare PCIx1 to NVME and a couple of NFHK (think that’s right, vertical one is covered up at the moment, and horizontal one is in the Pi where with the G4 500GB just scored 22669… best score yet I’ve got! Woot!

Boards seems to overclock reliably at 2300/850 with 8 over_voltage. CM4 Heatsink and an Noctua NF-A4x10 12v PWM fan above it in a PETG printed case from Thingaverse.

Scores from the pictures of the screen I’ve taken are:
G4 250G: 22320, 22204, 21956, 22141
G4 500G: 22025, 22669

Anyway, any thoughts on “WD Black SN750 SE” aka Gen4 not showing up?

Laz

Lazvon
Lazvon
2 years ago

Thanks, James! Nice. #1 for a minute. 🙂 I have a Sabrent coming that theoretically has “faster” synthetic benchmarks, so we’ll see. Even a couple of the bare
barely overclocked scores were in the 21,500 range.

Lazvon
Lazvon
2 years ago
Reply to  Lazvon

And I think I’m done playing Pi storage bench marking. 🙂

Received the Sabrent Rocket 4 Plus NVMe 4.0 1TB … on the Waveshare card. First score was 223xx and the second score after waiting a minute for things to settle 22432 … 8v/2300/850 overclock.

HDParm and DD were both faster than I’ve seen. But FIO wasn’t as good, and I’m pretty sure IOZone wasn’t quite as good either.

Thanks again for the bench marking site and the instructions. Was fun to learn how to set this up and see how things work!

Graham
Graham
2 years ago

Hey James,

Just thought I’d stop by and update, I have been playing with the Bullseye OS update and that also appears to work well on the CM4 / IO Board configuration.

It doesnt appear to need the Rpi-Update steps so it looks like it ships with the firmware to boot right from the image 64bit image, thought I’d also try a WD SN850 drive and some overclocking and it flies! Massive overkill on the SSD I know but it was lay on the bench at the time and I thought “what the heck..”

Category Test Result
HDParm Disk Read 374.83 MB/s
HDParm Cached Disk Read 374.16 MB/s
DD Disk Write 176 MB/s
FIO 4k random read 71358 IOPS (285435 KB/s)
FIO 4k random write 21467 IOPS (85870 KB/s)
IOZone 4k read 113346 KB/s
IOZone 4k write 80069 KB/s
IOZone 4k random read 61950 KB/s
IOZone 4k random write 119546 KB/s

Score: 23170

Cheers
Graham

Graham
Graham
2 years ago

Hi James,

Great post this, I’m following the steps to get my CM4 booting from nvme but it looks like the files i get from usbboot dont have the nvme folder as per your directions.

I’m digging to see if its just me being silly (highly likely) or something may have changed on the github files, will come back when I find something.

Cheers
G

Graham
Graham
2 years ago

Hi James,

I have tried using the updated usbboot but it doesnt seem to work, I simply used the recovery folder in place of the nvme folder but no joy.

I have downloaded the stable CM4 version so will give that a go.

Thanks
Graham

Graham
Graham
2 years ago
Reply to  Graham

Hi James,

Doesn’t look like the setup for NVMe use is working for me, I tried using the stable CM4 version as recommended but something isnt quite right. On trying to boot we see “NVMe error 8” and a complaint it needs newer software.

I’ll have another look at it and report back when I have a little more time.

Cheers
G

Graham
Graham
2 years ago

Hi James,

Sorry for the delay in reply, I can confirm i did get the beta firmware as per the guide but still nothing.

Going to burn a fresh OS to the NVMe ssd and try gain.

Thanks
Graham

Graham
Graham
2 years ago

Hey James,

Thanks for the reply, to answer some of the questions:

I have been trying to use Ubuntu server 64bit (I have tried 21.04 & 20.04.3, i prepped the NVMe and the SD cards using RPI Imager. I also tried a downloaded image from Ubuntu (just in case :)).

I do mount the drives as per your directions to run rpi-update, I have also tried with the fat32 & ext4 names also.

I’ll give it a go with the 64bit image you call out, basically I image the SDCard and the NVMe in a usb to M.2 adaptor (the same I used to run on my RPi 4 usb boot build). once thats done I start at the top of your directions and work my way down (i have tried the USBBoot that you recommended with the NVMe folder and the RPi one that no longer has that folder).

If I see any errors in the process I usually roll back and start again but its not often I see an error to be honest, it all looks great until we get to booting from the NVMe and its does nothing hehehe

plug it into the HDMi and we see nvme error 8, failed to open device: ‘nvme’

as you say, I must be missing something.

latest try was using Raspian desktop to copy the sdcard to the NVMe, on reboot it still throws the error 8 / failed to open device so I must be missing something on the rpiboot part or the rpi-update. it works if I have it boot from the SD and run root on the NVMe but that kind feels like a copout hehehe

I’ll keep going at it.

Thanks for the time and effort helping on this.

G

Graham
Graham
2 years ago

Hey James,

the 64bit image boots from NVMe 🙂

pi@raspberrypi:~ $ lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
nvme0n1 259:0 0 232.9G 0 disk
├─nvme0n1p1 259:1 0 256M 0 part /boot
└─nvme0n1p2 259:2 0 232.6G 0 part /

just for good measure I blew away rpiboot on my machine and started again from scratch, fres copy of the 64bit image you suggested and went back through the whole process and we now have a working machine.

Thanks for the help and tips, very much appreciated!

for ref:
PSU: 12v 2.5a (Im a data network engineer so have a few of these laying about as they are used on the older Cisco stuff)
SSD: WD_Black SN750 250G
CM4: 8GB Lite (wifi)

Thanks again for the guidance.
G

Graham
Graham
2 years ago

no problem at all, i dont mind working through stuff like this.

As you say it could be that Ubuntu is missing a few pieces of the puzzle, in the early days of USB Boot it was the same too. its easy for someone to read something on a web page and then get very frustrated when it doesnt work, this stuff is forever changing and hopefully this conversation will help others if they run into issues too.

Its great when you can interact with someone and get the issues resolved, if someone reads this far down, they likely think “but why?”

Well for me, its because a tuned CM4 with NVMe boot just ran a Score:21,920, it does make a difference when its used to run a number of containers in docker and a few other bits and pieces.

Thanks again for the great writeup.

Cheers
G

Truc
Truc
2 years ago

I’m sorry but you need to install libusb-1.0-0-dev also for CM4 before running “make”… If not, you will get an error.