Btrfs: Difference between revisions

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VisualWikitext

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 # Create the subvolumes
-btrfs subvolume create /mnt/root # The subvolume for /, which will be cleared on every boot
+btrfs subvolume create /mnt/root # The subvolume for /
 btrfs subvolume create /mnt/home # The subvolume for /home, which should be backed up
 btrfs subvolume create /mnt/nix # The subvolume for /nix, which needs to be persistent but is not worth backing up, as it’s trivial to reconstruct
-btrfs subvolume create /mnt/persist # The subvolume for /persist, containing system state which should be persistent across reboots and possibly backed up
 btrfs subvolume create /mnt/log # The subvolume for /var/log.
-# Take an empty *readonly* snapshot of the root subvolume, which can be rollback to on every boot.
-btrfs subvolume snapshot -r /mnt/root /mnt/root-blank
-</syntaxhighlight>
-Add the following nix config to clear the root volume on every boot([https://grahamc.com/blog/erase-your-darlings/ Erase your darlings]):
-<syntaxhighlight lang="nix">
-{
-  boot.initrd.postDeviceCommands = lib.mkAfter ''
-    mkdir /mnt
-    mount -t btrfs /dev/mapper/enc /mnt
-    btrfs subvolume delete /mnt/root
-    btrfs subvolume snapshot /mnt/root-blank /mnt/root
-  '';
-}
 </syntaxhighlight>
@@ Line 254: / Line 236: @@
 mount -o subvol=nix,compress=zstd,noatime /dev/mapper/enc /mnt/nix
-mkdir /mnt/persist
-mount -o subvol=persist,compress=zstd,noatime /dev/mapper/enc /mnt/persist
 mkdir -p /mnt/var/log
@@ Line 268: / Line 246: @@
 mount "$DISK"p1 /mnt/boot
-</syntaxhighlight >
+</syntaxhighlight>
 Configure <code>hardware-configuration.nix</code>