NixOS on ARM/ODROID-C2: Difference between revisions

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</div>

{{outdated|The information is likely outdated, but it is likely the ODROID-C2 works well.}}

== Status ==

~~ODROID-C2 support is being worked on by '''@grahamc'''.~~ Mainline kernel from NixOS has been reported as working<ref>https://logs.nix.samueldr.com/nixos-aarch64/2018-01-25#863144;</ref>. A non-specified build from mainline u-boot also has been reported to work.

Mainline kernel from NixOS has been reported as working<ref>https://logs.nix.samueldr.com/nixos-aarch64/2018-01-25#863144;</ref>. A non-specified build from mainline u-boot also has been reported to work.

== Board-specific installation notes ==

Note this assumes u-boot is in partition 1 of your board's connected eMMC. If you haven't done that yet, you can build it with nix and then write it this fusing script (using an emmc/usb adapter) [http://mirror.archlinuxarm.org/aarch64/alarm/uboot-odroid-c2-mainline-2019.07-1-aarch64.pkg.tar.xz download and extract] (replace /dev/sdX with the device for the eMMC):

Note this assumes u-boot is in partition 1 of your board's connected eMMC. If you haven't done that yet, you can build it with nix and then write it this fusing script (using an emmc/usb adapter) [~~https~~://archlinuxarm.org/~~packages~~/~~aarch64~~/uboot-odroid-c2-mainline/~~files~~/~~sd_fusing.sh]~~:

nix-build -A pkgsCross.aarch64-multiplatform.ubootOdroidC2

nix-build '<nixpkgs>' -A pkgsCross.aarch64-multiplatform.ubootOdroidC2

cd result

bash /path/to/sd_fusing.sh

bash /path/to/extracted/boot/sd_fusing.sh /dev/sdX

</syntaxhighlight>

# Download the sd-image from Hydra at https://hydra.nixos.org/job/nixos/release-18.09-aarch64/nixos.sd_image.aarch64-linux/latest

# Download the sd-image from Hydra at https://hydra.nixos.org/job/nixos/release-22.05-aarch64/nixos.sd_image.aarch64-linux/latest

# Copy it to the SD card

# Mount first partition to /mnt with <code>sudo mount /dev/mmcblk0p1 /mnt</code>

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== Serial console ==

I used minicom to access the serial:

I used minicom to access the serial console:

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</syntaxhighlight>

then run <code>sudo minicom</code> to access the ~~serial~~ console.

then run <code>sudo minicom</code> to access the console.

==Xorg==

Nixos 20.03 should install all modules needed for this to work but at least two changes should be made to the xorg configuration:

<pre>

services.xserver.videoDrivers = [ "modesetting" ];

services.xserver.extraConfig = ''

Section "OutputClass"

Identifier "Meson"

MatchDriver "meson"

Driver "modesetting"

Option "PrimaryGPU" "true"

EndSection

'';

</pre>

The HW cursor support was very laggy when tried on 20.03 so enabling the software cursor may be desired:

<hr />

<pre>

services.xserver.deviceSection = "Option \"SWcursor\" \"on\"";

</pre>

== Resources ==

@@ Line 19: / Line 19: @@
 |}
 </div>
+{{outdated|The information is likely outdated, but it is likely the ODROID-C2 works well.}}
 == Status ==
-ODROID-C2 support is being worked on by '''@grahamc'''. Mainline kernel from NixOS has been reported as working<ref>https://logs.nix.samueldr.com/nixos-aarch64/2018-01-25#863144;</ref>. A non-specified build from mainline u-boot also has been reported to work.
+Mainline kernel from NixOS has been reported as working<ref>https://logs.nix.samueldr.com/nixos-aarch64/2018-01-25#863144;</ref>. A non-specified build from mainline u-boot also has been reported to work.
 == Board-specific installation notes ==
+Note this assumes u-boot is in partition 1 of your board's connected eMMC. If you haven't done that yet, you can build it with nix and then write it this fusing script (using an emmc/usb adapter) [http://mirror.archlinuxarm.org/aarch64/alarm/uboot-odroid-c2-mainline-2019.07-1-aarch64.pkg.tar.xz download and extract] (replace /dev/sdX with the device for the eMMC):
-Note this assumes u-boot is in partition 1 of your board's connected eMMC. If you haven't done that yet, you can build it with nix and then write it this fusing script (using an emmc/usb adapter) [https://archlinuxarm.org/packages/aarch64/uboot-odroid-c2-mainline/files/sd_fusing.sh]:
 <syntaxhighlight lang=bash>
-nix-build -A pkgsCross.aarch64-multiplatform.ubootOdroidC2
+nix-build '<nixpkgs>' -A pkgsCross.aarch64-multiplatform.ubootOdroidC2
 cd result
-bash /path/to/sd_fusing.sh
+bash /path/to/extracted/boot/sd_fusing.sh /dev/sdX
 </syntaxhighlight>
-# Download the sd-image from Hydra at https://hydra.nixos.org/job/nixos/release-18.09-aarch64/nixos.sd_image.aarch64-linux/latest
+# Download the sd-image from Hydra at https://hydra.nixos.org/job/nixos/release-22.05-aarch64/nixos.sd_image.aarch64-linux/latest
 # Copy it to the SD card
 # Mount first partition to /mnt with <code>sudo mount /dev/mmcblk0p1 /mnt</code>
@@ Line 86: / Line 86: @@
 == Serial console ==
-I used minicom to access the serial:
+I used minicom to access the serial console:
 <syntaxhighlight>
@@ Line 96: / Line 96: @@
 </syntaxhighlight>
-then run <code>sudo minicom</code> to access the serial console.
+then run <code>sudo minicom</code> to access the console.
+==Xorg==
+Nixos 20.03 should install all modules needed for this to work but at least two changes should be made to the xorg configuration:
+<pre>
+services.xserver.videoDrivers = [ "modesetting"  ];
+  services.xserver.extraConfig = ''
+    Section "OutputClass"
+        Identifier "Meson"
+        MatchDriver "meson"
+        Driver "modesetting"
+        Option "PrimaryGPU" "true"
+    EndSection
+  '';
+</pre>
+The HW cursor support was very laggy when tried on 20.03 so enabling the software cursor may be desired:
-<hr />
+<pre>
+services.xserver.deviceSection = "Option \"SWcursor\" \"on\"";
+</pre>
 == Resources ==