-
-udev_volume_id - partition, filesystem, disklabel reader
+vol_id - probe filesystem and read label and uuid
This program is normally called from a udev rule, to provide udev with the
-name, uuid or the filesystem type of a partition to name a device node.
-udev_volume_id opens the blockdevice node specified at the commandline.
-The following commandline switches are supported to specify what udev_volume_id
-should print to stdout:
-
- no option prints all values
- -h prints help text
- -l prints the label of the partition
- -u prints the uuid of the partition
+filesystem type of a volume and the label and uuid to name a device node.
+vol_id opens the blockdevice node specified at the commandline. The following
+commandline switches are supported to specify what vol_id should print:
+ --export export key/value pairs
+ --type filesystem type
+ --label filesystem label
+ --label-raw raw label
+ --uuid filesystem uuid
+ --skip-raid don't probe for raid
+ --probe-all find possibly conflicting signatures
+ --help
-udev_volume_id will only return successful if the string asked for, is not
+vol_id will only return successful if the string asked for, is not
empty. All trailing whitespace will be removed, spaces replaced by underscore
and slashes ignored.
-The following rule will create a symlink named with the label string:
- KERNEL="[hs]d*", PROGRAM="/sbin/udev_volume_id -l %N", SYMLINK="%c"
+fstype probe label uuid version
+--------------------------------------------------
+linux swap * * * *
+ext * * * *
+reiserfs jr/3.5/3.6/4 * * * *
+fat (12, 16, 32) * * * *
+ntfs * * * *
+jfs * * * -
+xfs * * * -
+hfs (plus, wrapped) * * * -
+udf * * - -
+iso9660 * * - -
+ufs * - - -
+cramfs * * - -
+sysv * * - *
+luks * - * -
+hpfs * - - -
+romfs * * - -
+squashfs * - - -
+minix * - - *
+ocfs (1, 2) * * * *
+vxfs * - - *
+nss (netware) * * *
+gfs, gfs2 * - - -
-If no label is found udev_volume_id exits with nonzero and the rule will be
-ignored.
+Raid members are detected to prevent the probing for a filesystem
+-----------------------------------------------------------------
+linux raid (md) * * * *
+LVM 1 * - - -
+LVM 2 * - - *
+ddf * - * *
+highpoint * - - -
+isw_raid * - - -
+lsi_raid * - - -
+nvidia_raid * - - -
+promise_raid * - - -
+silicon_raid * - - -
+via_raid * - - -
+jmicron * - - -
+adaptec * - - -
To give it a try, you may call it on the commandline:
+ $ extras/volume_id/vol_id --export /dev/sda6
+ ID_FS_USAGE=filesystem
+ ID_FS_TYPE=ext3
+ ID_FS_VERSION=1.0
+ ID_FS_UUID=3e999973-00c9-4917-9442-b7633bd95b9e
+ ID_FS_LABEL=devel
+ ID_FS_LABEL_SAFE=devel
- [root@pim udev.kay]# extras/volume_id/udev_volume_id /dev/hda3
- T:ext3
- L:Music Store
- N:Music_Store
- U:d2da42b5-bbd9-44eb-a72c-cc4542fcb71e
-
- [root@pim udev.kay]# extras/volume_id/udev_volume_id -l /dev/hda3
- Music_Store
-
- [root@pim udev.kay]# extras/volume_id/udev_volume_id -t /dev/hda3
- swap
+ $ extras/volume_id/vol_id --label /dev/sda6
+ devel
+ $ extras/volume_id/vol_id --type /dev/sda6
+ ext3
-Please send any comment/questions/concerns to me or:
- linux-hotplug-devel@lists.sourceforge.net
-Kay Sievers <kay.sievers@vrfy.org>
+Any comment/questions/concerns to me:
+ Kay Sievers <kay.sievers@vrfy.org>
~ianmdlvl / elogind.git / blobdiff