#U boot raspberry pi 4 update#

Update the raspiвЂ™s configuration so it can boot from USB.

To be able to boot Fedora Server from USB you need to do two steps:

#U boot raspberry pi 4 how to#

See the UEFI firmwareвЂ™s README for steps on how to achieve this. Fedora 33, fortunately, ships a new enough firmware so itвЂ™s possible to enable all the available memory. Note that one extra step is highly recommended: By default, the UEFI firmware limits the RAM capacity to 3 GB because older kernels arenвЂ™t able to boot with more memory. I tried once more to make a Fedora image using osbuild-composer and this time it was done in 8 minutes! ThatвЂ™s much less than the first attempt (30 minutes). Then, I plugged the USB drive into my Raspberry, turned on the power - and it BOOTED! I tried updating the kernel and the Pi was still bootable afterward. The last step was to safely unmount the partition: cd. I downloaded the newest UEFI firmware and unzipped it into the EFI partition: cd /mnt/rpi

Then, I mounted the first (EFI) partition: mkdir /mnt/rpi At this point, I asked myself: IsnвЂ™t it possible to just use the Fedora Server image with the addition of the UEFI firmware to the EFI partition? I naturally tried it! Second (and successful) attempt to boot Fedora from USBДЇirstly, I copied the Fedora Server aarch64 image onto the SD card (itвЂ™s connected as /dev/sdb on my laptop): dd bs=4M if=./Fedora-Server-33-1.3.aarch64.raw of=/dev/sdb The guide uses two drives - one drive is written with the UEFI firmware and the other one is loaded with the Fedora installer. One part of the guide sounded unnecessarily complex to me though. As I would like to use my Raspberry as a headless server, this is fine for me. For example, it doesnвЂ™t support Wi-Fi nor GPIO pins. Please note that the UEFI firmware doesnвЂ™t support all RaspberryвЂ™s features and itвЂ™s very experimental. This is awesome because the FedoraвЂ™s aarch64 image natively supports UEFI boot. The guide does one part very differently from what I did in the previous attempt: Instead of using the official firmware and u-boot bootloader (I might be wrong with these terms, sorry!), it uses an unofficial UEFI-compatible firmware. I found this amazing guide that describes exactly what I need. Here comes the UEFI firmwareДЄfter several weeks, I decided to give my Raspberry & Fedora setup another look. I decided to continue this project with a rage quit. When the copy operation was done, I plugged the drive into my Pi, connect the power cord andвЂ¦ nothing happened. My next step was to once more write a Fedora Server image but this time to the NVMe drive. I copied the contents of the SD card to the NVMe drive and voila - my Raspberry Pi was able to boot Raspberry Pi OS from USB. Well, the solution was pretty simple - I just put the official Raspberry Pi OS on the SD card, booted up from it and followed the steps from the guide. The first issue with the guide came soon: Fedora doesnвЂ™t ship the rpi-eeprom-update and raspi-config tools. Then, I discovered this wonderful guide on TomвЂ™s Hardware describing how to enable USB boot with Raspberry Pi OS.

I found one spare 256 GB NVMe M.2 SSD at home and bought a USB 3 to NVME adapter ( AXAGON EEM2-UG2). Therefore, I decided to try booting Fedora from a USB drive. The Pi has 4 cores, 8 GB of RAM but an image build still takes half an hour.Д«uilding an operating system is an IO-heavy task so I suspected that even though I have one of the fastest SD cards, itвЂ™s still the limiting factor. building a custom Fedora image with osbuild-composer) but I was quickly disappointed with the performance. I did some quick experiments in terminal (e.g. I have no interest in a desktop environment so I used the Fedora Server image.

#U boot raspberry pi 4 plus#

I followed the official guide and was able to quickly boot my Pi from an SD card ( Samsung Evo Plus 32GB).

#U boot raspberry pi 4 full#

As I wanted to use the full power of the board, I naturally went for the aarch64 image. First decision is which image I should use: Fedora provides both 32-bit armhfp and 64-bit aarch64 images. IвЂ™ve recently got a new Raspberry Pi 4 (the 8GB model).