82 lines
2.5 KiB
Nix
82 lines
2.5 KiB
Nix
{ config, lib, pkgs, modulesPath, hostname, ... }:
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let
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rootDisk = "/dev/disk/by-partlabel/disk-${hostname}-root";
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bootDisk = "/dev/disk/by-partlabel/disk-${hostname}-ESP";
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in
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{
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boot.initrd.supportedFilesystems = [ "btrfs" ];
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# boot.initrd.systemd.services.rollback-root = {
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# description = "Rollback btrfs root subvolume";
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# wantedBy = [ "initrd.target" ];
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# after = [ "systemd-cryptsetup@.service" ];
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# before = [ "sysroot.mount" ];
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# unitConfig.DefaultDependencies = "no";
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# serviceConfig.Type = "oneshot";
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# script = ''
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# mkdir -p /btrfs_tmp
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# mount ${rootDisk} /btrfs_tmp
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#
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# # Ensure the old_roots directory exists
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# mkdir -p /btrfs_tmp/old_roots
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#
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# if [[ -e /btrfs_tmp/root ]]; then
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# timestamp=$(date +%Y-%m-%d_%H-%M-%S)
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# mv /btrfs_tmp/root "/btrfs_tmp/old_roots/$timestamp"
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# fi
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#
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# delete_subvolume_recursively() {
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# IFS=$'\n'
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# for i in $(btrfs subvolume list -o "$1" | cut -f 9 -d ' '); do
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# delete_subvolume_recursively "/btrfs_tmp/$i"
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# done
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# btrfs subvolume delete "$1"
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# }
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#
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# for i in $(find /btrfs_tmp/old_roots/ -maxdepth 1 -mtime +7); do
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# # Don't delete the old_roots directory itself
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# if [[ "$i" == "/btrfs_tmp/old_roots/" ]]; then continue; fi
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# delete_subvolume_recursively "$i"
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# done
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#
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# btrfs subvolume create /btrfs_tmp/root
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# umount /btrfs_tmp
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# '';
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# };
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# fileSystems."/" = {
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# device = rootDisk;
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# fsType = "btrfs";
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# options = [ "subvol=root" ];
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# };
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#
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# fileSystems."/persist" = {
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# device = rootDisk;
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# neededForBoot = true;
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# fsType = "btrfs";
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# options = [ "subvol=persist" ];
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# };
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#
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# fileSystems."/nix" = {
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# device = rootDisk;
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# neededForBoot = true;
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# fsType = "btrfs";
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# options = [ "subvol=nix" ];
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# };
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#
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# fileSystems."/boot" = {
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# device = bootDisk;
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# fsType = "vfat";
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# options = [ "fmask=0022" "dmask=0022" "umask=0077" ];
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# };
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#
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# swapDevices = [ {
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# device = "/.swapvol/swapfile";
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# } ];
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fileSystems."/persist".neededForBoot = true;
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fileSystems."/nix".neededForBoot = true;
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}
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