mirror of
https://github.com/NixOS/mobile-nixos.git
synced 2024-12-17 21:11:34 +03:00
71 lines
2.0 KiB
Nix
71 lines
2.0 KiB
Nix
{ config, lib, pkgs, ... }:
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# FIXME: Add hook for mounting, right now it's hardcoded to only mount "/".
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# (This'll allow complex schemes like LVM)
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let
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rootfs = config.fileSystems."/".device;
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inherit (lib) mkMerge mkOrder;
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in
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with import ./initrd-order.nix;
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{
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config = mkMerge [
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{
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mobile.boot.stage-1.init = mkOrder SWITCH_ROOT_INIT ''
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targetRoot=/mnt
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_init_path() {
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local _system=""
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# Using -L is required, as the link chain is most likely dangling.
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if [ -L "$targetRoot/nix/var/nix/profiles/system" ]; then
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# There is a system symlink, use it.
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# What's that strange dance? We're canonicalizing one level deep of an
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# absolute symlink that we can't easily canonicalize otherwise.
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_system=$(cd $targetRoot/nix/var/nix/profiles/; readlink $(readlink system))
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elif [ -e "$targetRoot/nix-path-registration" ]; then
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# Otherwise, try to find one in nix-path-registration.
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_system="$(grep '^/nix/store/[a-z0-9]\+-nixos-system-' $targetRoot/nix-path-registration | head -1)"
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else
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echo "!!!!!"
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echo "!!!!!"
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echo "!!!!!"
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echo ""
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echo "Could not figure out where `init` is."
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echo "Panic in 2 minutes."
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echo ""
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echo "!!!!!"
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echo "!!!!!"
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echo "!!!!!"
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sleep 2m
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exit 1
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fi
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echo "$_system/init"
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}
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mkdir -p $targetRoot
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mount "${rootfs}" $targetRoot
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echo ""
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echo "***"
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echo ""
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echo "Swiching root to $(_init_path)"
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echo ""
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echo "***"
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echo ""
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for mp in /proc /sys /dev /run; do
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mkdir -m 0755 -p $targetRoot/$mp
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mount --move $mp $targetRoot/$mp
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done
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'';
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}
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{
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mobile.boot.stage-1.init = mkOrder SWITCH_ROOT_HAPPENING ''
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exec env -i $(type -P switch_root) $targetRoot $(_init_path)
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'';
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}
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];
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}
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