NixOS Wiki

NixOS on ARM/ODROID-HC4: Difference between revisions

← Older editNewer edit →
VisualWikitext
imported>Erdnaxe
No edit summary
imported>Artemislena
Updated the U-Boot build, which means SATA is working, also added information on the fan
Line 48: Line 48:
# Uncompress the .zst file. One may use the <code>unzstd</code> command (equivalent to <code>zstd -d</code>) on supported machines. The zstd commands can be accessed from the <code>zstd</code> package.
# Uncompress the .zst file. One may use the <code>unzstd</code> command (equivalent to <code>zstd -d</code>) on supported machines. The zstd commands can be accessed from the <code>zstd</code> package.
# Patch this image (.img file) with U-Boot for Odroid HC4. <syntaxhighlight lang="bash">
# Patch this image (.img file) with U-Boot for Odroid HC4. <syntaxhighlight lang="bash">
# Clone content of pull request https://github.com/NixOS/nixpkgs/pull/101454 and build
# Clone content of samueldr's wip/odroidc4 branch, edit the defconfig file, and build
git clone https://github.com/arapov/nixpkgs --depth 1 -b hardkernel && cd nixpkgs
git clone https://github.com/samueldr/nixpkgs --depth 1 -b wip/odroidc4 && cd nixpkgs
test "$(uname)" '==' 'Darwin' && sed -i '' 's/defconfig = "odroid-c4_defconfig"/defconfig = "odroid-hc4_defconfig"/' pkgs/misc/uboot/default.nix || sed -i 's/defconfig = "odroid-c4_defconfig"/defconfig = "odroid-hc4_defconfig"/' pkgs/misc/uboot/default.nix
nix-build -I "nixpkgs=$PWD" -A pkgsCross.aarch64-multiplatform.ubootOdroidC4
nix-build -I "nixpkgs=$PWD" -A pkgsCross.aarch64-multiplatform.ubootOdroidC4
sudo dd if=result/u-boot.bin of=PATH/TO/nixos-sd-image-21.05.XXXX.XXXXXXXX-aarch64-linux.img  conv=fsync,notrunc bs=512 seek=1
sudo dd if=result/u-boot.bin of=PATH/TO/nixos-sd-image-21.05.XXXX.XXXXXXXX-aarch64-linux.img  conv=fsync,notrunc bs=512 seek=1
Line 55: Line 56:
# Flash the modified SD image file (.img) to a microSD card. '''This will erase all the data on the card!'''
# Flash the modified SD image file (.img) to a microSD card. '''This will erase all the data on the card!'''


== Known Problems ==
== Known issues ==
 
=== Fan doesn't work by default ===
=== SATA is not working ===
You need to use software fan control (via <syntaxhighlight>fancontrol</syntaxhighlight>) for this. Add the following to your <syntaxhighlight>configuration.nix</syntaxhighlight>:
 
<syntaxhighlight>
SATA is working on Armbian with mainline kernel and u-boot but not on NixOS 21.05: lspci returns nothing.
# Based on the config from https://www.armbian.com/odroid-hc4/. Made MINTEMP and MAXTEMP a bit more relaxed so the fan doesn't run on idle.
WIP
hardware.fancontrol = {
    enable = true;
    config = ''
    INTERVAL=10
    DEVPATH=hwmon0=devices/virtual/thermal/thermal_zone0 hwmon2=devices/platform/pwm-fan
    DEVNAME=hwmon0=cpu_thermal hwmon2=pwmfan
    FCTEMPS=hwmon2/pwm1=hwmon0/temp1_input
    MINTEMP=hwmon2/pwm1=55
    MAXTEMP=hwmon2/pwm1=65
    MINSTART=hwmon2/pwm1=20
    MINSTOP=hwmon2/pwm1=28
    MINPWM=hwmon2/pwm1=0
    MAXPWM=hwmon2/pwm1=255
    '';
};
</syntaxhighlight>


== Resources ==
== Resources ==
Retrieved from "https://wiki.nixos.org/wiki/NixOS_on_ARM/ODROID-HC4"