diff options
Diffstat (limited to 'nixos/modules/config/swap.nix')
| -rw-r--r-- | nixos/modules/config/swap.nix | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/nixos/modules/config/swap.nix b/nixos/modules/config/swap.nix index 62b6e011713e..e57ed2565a10 100644 --- a/nixos/modules/config/swap.nix +++ b/nixos/modules/config/swap.nix @@ -54,6 +54,10 @@ let WARNING: Don't try to hibernate when you have at least one swap partition with this option enabled! We have no way to set the partition into which hibernation image is saved, so if your image ends up on an encrypted one you would lose it! + + WARNING #2: Do not use /dev/disk/by-uuid/… or /dev/disk/by-label/… as your swap device + when using randomEncryption as the UUIDs and labels will get erased on every boot when + the partition is encrypted. Best to use /dev/disk/by-partuuid/… ''; }; @@ -72,7 +76,7 @@ let config = rec { device = mkIf options.label.isDefined "/dev/disk/by-label/${config.label}"; - deviceName = escapeSystemdPath config.device; + deviceName = lib.replaceChars ["\\"] [""] (escapeSystemdPath config.device); realDevice = if config.randomEncryption then "/dev/mapper/${deviceName}" else config.device; }; @@ -121,6 +125,8 @@ in createSwapDevice = sw: assert sw.device != ""; + assert !(sw.randomEncryption && lib.hasPrefix "/dev/disk/by-uuid" sw.device); + assert !(sw.randomEncryption && lib.hasPrefix "/dev/disk/by-label" sw.device); let realDevice' = escapeSystemdPath sw.realDevice; in nameValuePair "mkswap-${sw.deviceName}" { description = "Initialisation of swap device ${sw.device}"; |