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| − | {{ARM/breadcrumb}}
| + | This page has been moved to the official NixOS Wiki: |
| − | <div class="infobox">
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| − | {|class="table"
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| − | !colspan="2" class="title"|Hardkernel ODROID-HC1 & ODROID-HC2
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| − | |-
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| − | !Manufacturer
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| − | |Hardkernel
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| − | |-
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| − | !Architecture
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| − | |ARMv7
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| − | |-
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| − | !Bootloader
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| − | |U-Boot
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| − | |-
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| − | !Boot options
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| − | |SD
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| − | |}
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| − | </div>
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| | | | |
| − | == Status ==
| + | ⇒ '''[https://wiki.nixos.org/wiki/NixOS_on_ARM/ODROID-HC1 NixOS on ARM/ODROID-HC1]''' |
| | | | |
| − | Mostly working, but some manual steps needed to get it running.
| + | ''— samueldr, Lead of NixOS on ARM.'' |
| − | | |
| − | == Board-specific installation notes ==
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| − | | |
| − | # Flash the multiplatform ARMv7 SD card image onto a Micro SD card.
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| − | # Install the ODROID XU3 bootloader:
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| − | #* If you can run ARMv7 binaries (either natively or with QEMU), you can use <code>nix-shell -p odroid-xu3-bootloader --run 'sd_fuse-xu3 /dev/mmcblkp0'</code> (replace mmcblkp0 with the device node for your SD card).
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| − | #* If you are cross compiling, the script will not run as it'll try to use ARMv7 binaries, but you can manually flash the needed parts:
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| − | #*; <syntaxhighlight lang=bash>
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| − | dd conv=notrunc bs=512 seek=1 of=/dev/mmcblk0 if=./result/lib/sd_fuse-xu3/bl1.bin.hardkernel
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| − | dd conv=notrunc bs=512 seek=31 of=/dev/mmcblk0 if=./result/lib/sd_fuse-xu3/bl2.bin.hardkernel.1mb_uboot
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| − | dd conv=notrunc bs=512 seek=63 of=/dev/mmcblk0 if=./result/lib/sd_fuse-xu3/u-boot-dtb.bin
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| − | dd conv=notrunc bs=512 seek=2111 of=/dev/mmcblk0 if=./result/lib/sd_fuse-xu3/tzsw.bin.hardkernel
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| − | </syntaxhighlight>
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| − | # If you cross compiled the boot loader, U-Boot will try to load an incorrect device tree blob. The easiest way to fix that is to mount the root partition (the second partition on the SD card), and modify <code>boot/extlinux/extlinux.conf</code> to include <code>FDT exynos5422-odroidhc1.dtb</code> (the HC1 and HC2 both use the same DTB file, there is no <code>exynos5422-odroidhc2.dtb</code>). This will be needed every time the configuration is regenerated, so it is best to reinstall the bootloader natively once the system has booted for the first time.
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| − | The system is now ready to boot. SSH is disabled, so you'll need to access it via the serial port. As the image is based off of the NixOS installer you should be automatically logged into the <code>nixos</code> account and both <code>nixos</code> and <code>root</code> should have no password set.
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| − | | |
| − | == Known Problems ==
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| − | === Hardkernel Kernel ===
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| − | | |
| − | You can use the Hardkernel fork of the Linux kernel by setting <code>boot.kernelPackages = pkgs.linuxPackages_hardkernel_latest</code>. Note that this is currently a 4.14 LTS kernel.
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| − | This kernel does not reboot correctly with the default settings. To work around this you can set <code>boot.consoleLogLevel = 7;</code>. Powering the system off and then unplugging the power supply shortly to make it start up again also works.
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| − | | |
| − | === Mainline Kernel ===
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| − | The mainline kernel also doesn't reboot correctly, but works fine when booted from a cold system. When doing a warm reboot the SATA port will not work and the ethernet port might also be unusable.
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| − | | |
| − | === Ethernet, SATA in stage1 ===
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| − | To use the SATA disk in stage1, for example to move the Nix store off of the Micro SD card, add <code>boot.initrd.availableKernelModules = [ "uas" ];</code>.
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| − | To use a network connection, for example for remotely unlocking an encrypted root partition, add this to your configuration:
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| − | | |
| − | <syntaxhighlight>
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| − | boot.initrd.kernelModules = [ "r8152" ];
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| − | boot.initrd.preLVMCommands = lib.mkBefore "waitDevice /sys/class/net/eth0";
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| − | </syntaxhighlight>
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