2012-10-12 23:32:36 +02:00
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{ config, pkgs, utils, ... }:
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2009-10-12 18:36:19 +02:00
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with pkgs.lib;
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2012-10-12 23:32:36 +02:00
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with utils;
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2006-12-21 15:22:40 +01:00
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2012-03-15 14:54:23 +01:00
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let
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2012-11-02 18:02:12 +01:00
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fileSystems = attrValues config.fileSystems;
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2012-03-15 14:54:23 +01:00
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fstab = pkgs.writeText "fstab"
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''
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# This is a generated file. Do not edit!
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# Filesystems.
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2012-11-02 18:02:12 +01:00
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${flip concatMapStrings fileSystems (fs:
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2012-03-15 14:54:23 +01:00
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(if fs.device != null then fs.device else "/dev/disk/by-label/${fs.label}")
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+ " " + fs.mountPoint
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+ " " + fs.fsType
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+ " " + fs.options
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+ " 0"
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2012-09-11 16:55:56 +02:00
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+ " " + (if fs.fsType == "none" || fs.device == "none" || fs.fsType == "btrfs" || fs.fsType == "tmpfs" || fs.noCheck then "0" else
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2012-03-15 14:54:23 +01:00
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if fs.mountPoint == "/" then "1" else "2")
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+ "\n"
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)}
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# Swap devices.
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${flip concatMapStrings config.swapDevices (sw:
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2012-06-12 15:41:51 +02:00
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"${sw.device} none swap\n"
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2012-03-15 14:54:23 +01:00
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)}
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'';
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2012-11-02 18:02:12 +01:00
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fileSystemOpts = { name, ... }: {
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options = {
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mountPoint = mkOption {
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example = "/mnt/usb";
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type = types.uniq types.string;
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description = "Location of the mounted the file system.";
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};
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device = mkOption {
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default = null;
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example = "/dev/sda";
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type = types.uniq (types.nullOr types.string);
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description = "Location of the device.";
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};
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label = mkOption {
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default = null;
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example = "root-partition";
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type = types.uniq (types.nullOr types.string);
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description = "Label of the device (if any).";
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};
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fsType = mkOption {
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default = "auto";
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example = "ext3";
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type = types.uniq types.string;
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description = "Type of the file system.";
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};
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options = mkOption {
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default = "defaults,relatime";
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example = "data=journal";
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type = types.string;
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merge = pkgs.lib.concatStringsSep ",";
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description = "Options used to mount the file system.";
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};
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autoFormat = mkOption {
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default = false;
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type = types.bool;
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description = ''
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If the device does not currently contain a filesystem (as
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determined by <command>blkid</command>, then automatically
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format it with the filesystem type specified in
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<option>fsType</option>. Use with caution.
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'';
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};
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noCheck = mkOption {
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default = false;
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type = types.bool;
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description = "Disable running fsck on this filesystem.";
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};
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};
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config = {
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mountPoint = mkDefault name;
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};
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};
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2012-03-15 14:54:23 +01:00
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in
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2012-10-12 23:32:36 +02:00
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2009-10-12 18:36:19 +02:00
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{
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###### interface
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2009-05-28 01:14:38 +02:00
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options = {
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2009-06-11 18:03:57 +02:00
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fileSystems = mkOption {
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2012-11-02 18:02:12 +01:00
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example = {
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"/".device = "/dev/hda1";
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"/data" = {
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2009-05-28 01:14:38 +02:00
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device = "/dev/hda2";
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fsType = "ext3";
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options = "data=journal";
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2012-11-02 18:02:12 +01:00
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};
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"/bigdisk".label = "bigdisk";
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};
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type = types.loaOf types.optionSet;
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options = [ fileSystemOpts ];
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2012-03-09 15:37:58 +01:00
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description = ''
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2009-05-28 01:14:38 +02:00
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The file systems to be mounted. It must include an entry for
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the root directory (<literal>mountPoint = \"/\"</literal>). Each
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entry in the list is an attribute set with the following fields:
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<literal>mountPoint</literal>, <literal>device</literal>,
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<literal>fsType</literal> (a file system type recognised by
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<command>mount</command>; defaults to
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<literal>\"auto\"</literal>), and <literal>options</literal>
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(the mount options passed to <command>mount</command> using the
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<option>-o</option> flag; defaults to <literal>\"defaults\"</literal>).
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Instead of specifying <literal>device</literal>, you can also
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specify a volume label (<literal>label</literal>) for file
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systems that support it, such as ext2/ext3 (see <command>mke2fs
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-L</command>).
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2012-03-09 15:37:58 +01:00
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'';
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2009-05-28 01:14:38 +02:00
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};
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2011-09-14 20:20:50 +02:00
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2012-03-09 15:37:58 +01:00
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system.fsPackages = mkOption {
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2009-05-28 01:14:38 +02:00
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internal = true;
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2012-03-09 15:37:58 +01:00
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default = [ ];
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description = "Packages supplying file system mounters and checkers.";
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};
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boot.supportedFilesystems = mkOption {
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default = [ ];
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example = [ "btrfs" ];
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type = types.list types.string;
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description = "Names of supported filesystem types.";
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};
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boot.initrd.supportedFilesystems = mkOption {
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default = [ ];
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example = [ "btrfs" ];
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type = types.list types.string;
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description = "Names of supported filesystem types in the initial ramdisk.";
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2009-05-28 01:14:38 +02:00
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};
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2011-09-14 20:20:50 +02:00
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2009-05-28 01:14:38 +02:00
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};
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2009-10-12 18:36:19 +02:00
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###### implementation
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2009-05-28 01:14:38 +02:00
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2009-10-12 18:36:19 +02:00
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config = {
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2009-05-28 01:14:38 +02:00
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2012-11-02 18:02:12 +01:00
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boot.supportedFilesystems = map (fs: fs.fsType) fileSystems;
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2012-03-09 15:37:58 +01:00
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boot.initrd.supportedFilesystems =
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map (fs: fs.fsType)
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2012-11-02 18:02:12 +01:00
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(filter (fs: fs.mountPoint == "/" || fs.neededForBoot) fileSystems);
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2012-03-09 15:37:58 +01:00
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2009-10-12 18:36:19 +02:00
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# Add the mount helpers to the system path so that `mount' can find them.
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2012-03-09 15:37:58 +01:00
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system.fsPackages = [ pkgs.dosfstools ];
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2012-10-12 23:32:36 +02:00
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2010-06-04 17:35:32 +02:00
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environment.systemPackages =
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2012-06-16 06:19:43 +02:00
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[ pkgs.ntfs3g pkgs.cifs_utils ]
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2012-03-09 15:37:58 +01:00
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++ config.system.fsPackages;
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2011-09-14 20:20:50 +02:00
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2010-06-04 16:22:11 +02:00
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environment.etc = singleton
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2012-03-15 14:54:23 +01:00
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{ source = fstab;
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2010-06-04 16:22:11 +02:00
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target = "fstab";
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};
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2012-10-12 21:08:44 +02:00
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# Provide a target that pulls in all filesystems.
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boot.systemd.targets.fs =
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{ description = "All File Systems";
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wants = [ "local-fs.target" "remote-fs.target" ];
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};
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2012-10-12 23:32:36 +02:00
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# Emit systemd services to format requested filesystems.
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boot.systemd.services =
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let
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formatDevice = fs:
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let
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mountPoint' = escapeSystemdPath fs.mountPoint;
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device' = escapeSystemdPath fs.device;
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in nameValuePair "mkfs-${device'}"
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{ description = "Initialisation of Filesystem ${fs.device}";
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wantedBy = [ "${mountPoint'}.mount" ];
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2012-10-31 14:49:09 +01:00
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before = [ "${mountPoint'}.mount" "systemd-fsck@${device'}.service" ];
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2012-10-12 23:32:36 +02:00
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require = [ "${device'}.device" ];
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after = [ "${device'}.device" ];
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path = [ pkgs.utillinux ] ++ config.system.fsPackages;
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script =
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''
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if ! [ -e "${fs.device}" ]; then exit 1; fi
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# FIXME: this is scary. The test could be more robust.
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2012-05-16 02:03:44 +02:00
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type=$(blkid -p -s TYPE -o value "${fs.device}" || true)
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if [ -z "$type" ]; then
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echo "creating ${fs.fsType} filesystem on ${fs.device}..."
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mkfs.${fs.fsType} "${fs.device}"
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fi
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2012-10-12 23:32:36 +02:00
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'';
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unitConfig.RequiresMountsFor = [ "${dirOf fs.device}" ];
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unitConfig.DefaultDependencies = false; # needed to prevent a cycle
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serviceConfig.Type = "oneshot";
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};
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2010-06-07 14:15:55 +02:00
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2012-11-02 18:02:12 +01:00
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in listToAttrs (map formatDevice (filter (fs: fs.autoFormat) fileSystems));
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2006-12-21 15:22:40 +01:00
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2009-03-06 13:27:33 +01:00
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};
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2009-08-11 23:10:33 +02:00
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2006-12-21 15:22:40 +01:00
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}
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