-vol_id - partition, filesystem, disklabel reader
+vol_id - volume, filesystem, disklabel reader
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.
+name, uuid or the filesystem type of a volume 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 prints all values
-h prints help text
- -l prints the label of the partition
- -u prints the uuid of the partition
+ -l prints the label of the volume
+ -u prints the uuid of the volume
vol_id will only return successful if the string asked for, is not
empty. All trailing whitespace will be removed, spaces replaced by underscore
luks * - * -
hpfs * - - -
romfs *
+squashfs *
minix *
-dasd *
highpoint *
isw_raid *
lsi_raid *
promise_raid *
silicon_raid *
via_raid *
-mac partitons *
-msdos partitions *
-The following rule will create a symlink named with the label string:
- KERNEL=="[hs]d*", PROGRAM=="/sbin/vol_id -l %N", SYMLINK+="%c"
-
If no label is found vol_id exits with nonzero and the rule will be
ignored.
To give it a try, you may call it on the commandline:
- [root@pim udev.kay]# extras/volume_id/vol_id /dev/hda3
- T:ext3
- L:Music Store
- N:Music_Store
- U:d2da42b5-bbd9-44eb-a72c-cc4542fcb71e
+ $ 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/vol_id -l /dev/hda3
- Music_Store
+ $ extras/volume_id/vol_id -l /dev/sda6
+ devel
- [root@pim udev.kay]# extras/volume_id/vol_id -t /dev/hda3
- swap
+ $ extras/volume_id/vol_id -t /dev/sda6
+ ext3
Any comment/questions/concerns to me:
-Kay Sievers <kay.sievers@vrfy.org>
+ Kay Sievers <kay.sievers@vrfy.org>