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enable NixOS installer for powerpc64le#192672

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wegank merged 1 commit intomasterfrom
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Feb 23, 2023
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enable NixOS installer for powerpc64le#192672
wegank merged 1 commit intomasterfrom
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@ghost ghost commented Sep 23, 2022 •
edited by ghost
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It boots! And petitboot (the bootloader) even recognizes the syslinux table, so nixos-rebuild switch -p should work.

Screenshots are taken from the machine running minicom, connected to the serial console; all of my PowerPC machines are headless at the moment.

To get the results above, download a statically built nix for powerpc64le and do the following:

nix build -f nixos -L \
  -I nixos-config=nixos/modules/installer/sd-card/sd-image-powerpc64le.nix \
  --argstr system powerpc64le-linux \
  config.system.build.sdImage

zstdcat -d result/sd-image/nixos-sd-image-*.img.zst \
  | pv -ratep \
  > /dev/${YOUR_SD_CARD}

reboot

I built from nixpkgs mainline at 3ad7b8a, but it should work at any commit after that.

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@github-actions github-actions bot added 6.topic: nixos Issues or PRs affecting NixOS modules, or package usability issues specific to NixOS 8.has: module (update) This PR changes an existing module in `nixos/` labels Sep 23, 2022
@ofborg ofborg bot added 10.rebuild-darwin: 0 This PR does not cause any packages to rebuild on Darwin. 10.rebuild-linux: 1-10 This PR causes between 1 and 10 packages to rebuild on Linux. labels Sep 23, 2022
@ghost ghost mentioned this pull request Sep 24, 2022
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@ghost ghost marked this pull request as draft September 26, 2022 04:25
@ghost ghost changed the title nixos/installer: add sd-image-powerpc64le.nix enable NixOS installer for powerpc64 Sep 26, 2022
@ghost ghost marked this pull request as ready for review September 26, 2022 06:15
@ghost ghost changed the title enable NixOS installer for powerpc64 enable NixOS installer for powerpc64le Sep 26, 2022
This was referenced Sep 26, 2022
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@ghost ghost marked this pull request as draft January 5, 2023 09:32
@github-actions github-actions bot added the 6.topic: lua Lua is a powerful, efficient, lightweight, embeddable scripting language. label Jan 5, 2023
@ofborg ofborg bot requested a review from nh2 January 5, 2023 09:44
@ofborg ofborg bot added 10.rebuild-darwin: 501+ This PR causes many rebuilds on Darwin and should normally target the staging branches. 10.rebuild-darwin: 1001-2500 This PR causes many rebuilds on Darwin and should most likely target the staging branches. 10.rebuild-linux: 501+ This PR causes many rebuilds on Linux and should normally target the staging branches. 10.rebuild-linux: 5001+ This PR causes many rebuilds on Linux and must target the staging branches. and removed 10.rebuild-darwin: 0 This PR does not cause any packages to rebuild on Darwin. 10.rebuild-linux: 1-10 This PR causes between 1 and 10 packages to rebuild on Linux. labels Jan 5, 2023
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ghost commented Jan 5, 2023

Rebased.

@ghost ghost marked this pull request as ready for review January 5, 2023 11:28
@ofborg ofborg bot requested review from globin, jcumming, jonringer and wizeman January 5, 2023 11:38
@ofborg ofborg bot added 10.rebuild-darwin: 0 This PR does not cause any packages to rebuild on Darwin. 10.rebuild-linux: 1-10 This PR causes between 1 and 10 packages to rebuild on Linux. and removed 10.rebuild-darwin: 501+ This PR causes many rebuilds on Darwin and should normally target the staging branches. labels Jan 5, 2023
@ofborg ofborg bot removed 10.rebuild-darwin: 1001-2500 This PR causes many rebuilds on Darwin and should most likely target the staging branches. 10.rebuild-linux: 501+ This PR causes many rebuilds on Linux and should normally target the staging branches. 10.rebuild-linux: 5001+ This PR causes many rebuilds on Linux and must target the staging branches. labels Jan 5, 2023
@github-actions github-actions bot added 6.topic: pantheon The Pantheon desktop environment and removed 6.topic: pantheon The Pantheon desktop environment labels Jan 5, 2023
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ghost commented Jan 6, 2023

Rebased past the recent manual-building glitch, dropped the hacky workaround for that.

@ghost ghost marked this pull request as draft January 6, 2023 23:49
@github-actions github-actions bot removed the 6.topic: lua Lua is a powerful, efficient, lightweight, embeddable scripting language. label Jan 6, 2023
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ghost commented Jan 6, 2023 •
edited by ghost
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All the dependencies of this PR have merged; I'm rebuilding it once more to make sure it's good to go. Will undraftify once I do that.

Still builds and boots; good to go.

@ghost ghost marked this pull request as ready for review January 7, 2023 03:21
wegank
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@wegank
nixos/installer: add sd-image-powerpc64le.nix
f99e8ba 
This builds on top of nixpkgs mainline 00d8347
with the following two PRs cherry-picked:

- #192670
- #192668

using the following command:

```
nix build -f nixos -L \
  -I nixos-config=nixos/modules/installer/sd-card/sd-image-powerpc64le.nix \
  config.system.build.sdImage
```

I was able to successfully boot the image, although it boots to a login prompt
rather than a shell, and won't accept the empty password for `root`.  I guess
I'll have to figure out why that is.

To boot the image: `zstd`-decompress the it, mount it, and use `kexec`:

```
cd boot/nixos
kexec -l \
  *-vmlinux \
  --initrd *-initrd \
  --dt-no-old-root \
  --command-line="$(grep APPEND ../extlinux/extlinux.conf | sed 's_^ *APPEND *__')"
```

The machine I used for testing has only one storage device which is completely
allocated to LVM.  It appears that the NixOS ISO loader doesn't look for
partition tables within LVM volumes.  To work aroundn this, I had to extract the
`ext4` image within the partition table within the `sd-card` image and put that
in its own LVM volume.  This likely won't be an obstacle for users who write the
image to a USB stick or similar.
@wegank wegank merged commit b65d2ea into NixOS:master Feb 23, 2023
@ghost ghost deleted the pr/nixos/sd/powerpc64le branch February 23, 2023 05:16
@ghost ghost mentioned this pull request Jul 31, 2023
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@Artturin Artturin mentioned this pull request Jan 29, 2024
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6.topic: nixos Issues or PRs affecting NixOS modules, or package usability issues specific to NixOS 8.has: module (update) This PR changes an existing module in `nixos/` 10.rebuild-darwin: 0 This PR does not cause any packages to rebuild on Darwin. 10.rebuild-linux: 1-10 This PR causes between 1 and 10 packages to rebuild on Linux.

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