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Better handling of bind mounts in make-disk-image #1056

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23 changes: 14 additions & 9 deletions lib/types/nodev.nix
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Original file line number Diff line number Diff line change
Expand Up @@ -46,15 +46,20 @@
};
_mount = diskoLib.mkMountOption {
inherit config options;
default = lib.optionalAttrs (config.mountpoint != null) {
fs.${config.mountpoint} = ''
if ! findmnt ${config.fsType} "${rootMountPoint}${config.mountpoint}" > /dev/null 2>&1; then
mount -t ${config.fsType} "${config.device}" "${rootMountPoint}${config.mountpoint}" \
${lib.concatMapStringsSep " " (opt: "-o ${opt}") config.mountOptions} \
-o X-mount.mkdir
fi
'';
};
default =
let
isBindMount = builtins.elem "bind" config.mountOptions;
device = if isBindMount then "${rootMountPoint}${config.device}" else config.device;
in
lib.optionalAttrs (config.mountpoint != null) {
fs.${config.mountpoint} = ''
if ! findmnt ${config.fsType} "${rootMountPoint}${config.mountpoint}" > /dev/null 2>&1; then
mount -t ${config.fsType} "${device}" "${rootMountPoint}${config.mountpoint}" \
${lib.concatMapStringsSep " " (opt: "-o ${opt}") config.mountOptions} \
-o X-mount.mkdir
fi
'';
};
};
_unmount = diskoLib.mkUnmountOption {
inherit config options;
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