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https://github.com/JulienMalka/snowfield.git
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48 lines
1.3 KiB
Nix
48 lines
1.3 KiB
Nix
{ lib, modulesPath, ... }:
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{
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imports = [ (modulesPath + "/profiles/qemu-guest.nix") ];
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boot.initrd.availableKernelModules = [
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"ata_piix"
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"uhci_hcd"
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"virtio_pci"
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"virtio_scsi"
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"sd_mod"
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"sr_mod"
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];
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boot.initrd.kernelModules = [ ];
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boot.kernelModules = [ ];
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boot.extraModulePackages = [ ];
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fileSystems."/persistent".neededForBoot = lib.mkForce true;
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boot.initrd.postDeviceCommands = lib.mkAfter ''
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mkdir /btrfs_tmp
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mount /dev/disk/by-partlabel/disk-sda-root /btrfs_tmp
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if [[ -e /btrfs_tmp/root ]]; then
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mkdir -p /btrfs_tmp/old_roots
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timestamp=$(date --date="@$(stat -c %Y /btrfs_tmp/root)" "+%Y-%m-%-d_%H:%M:%S")
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mv /btrfs_tmp/root "/btrfs_tmp/old_roots/$timestamp"
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fi
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delete_subvolume_recursively() {
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IFS=$'\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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for i in $(find /btrfs_tmp/old_roots/ -maxdepth 1 -mtime +30); do
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delete_subvolume_recursively "$i"
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done
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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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networking.useDHCP = lib.mkDefault true;
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nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
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}
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