2004-05-12 09:52:52 +02:00
|
|
|
|
|
|
|
udev_volume_id - partition, 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.
|
2005-02-10 09:35:52 +01:00
|
|
|
udev_volume_id opens the blockdevice node specified at the commandline.
|
|
|
|
The following commandline switches are supported to specify what udev_volume_id
|
2004-05-12 09:52:52 +02:00
|
|
|
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
|
|
|
|
|
|
|
|
udev_volume_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:
|
2005-02-10 09:35:52 +01:00
|
|
|
KERNEL="[hs]d*", PROGRAM="/sbin/udev_volume_id -l %N", SYMLINK="%c"
|
2004-05-12 09:52:52 +02:00
|
|
|
|
|
|
|
If no label is found udev_volume_id exits with nonzero and the rule will be
|
|
|
|
ignored.
|
|
|
|
|
|
|
|
To give it a try, you may call it on the commandline:
|
|
|
|
|
2005-02-10 09:35:52 +01:00
|
|
|
[root@pim udev.kay]# extras/volume_id/udev_volume_id /dev/hda3
|
2004-05-12 09:52:52 +02:00
|
|
|
T:ext3
|
|
|
|
L:Music Store
|
|
|
|
N:Music_Store
|
|
|
|
U:d2da42b5-bbd9-44eb-a72c-cc4542fcb71e
|
|
|
|
|
2005-02-10 09:35:52 +01:00
|
|
|
[root@pim udev.kay]# extras/volume_id/udev_volume_id -l /dev/hda3
|
2004-05-12 09:52:52 +02:00
|
|
|
Music_Store
|
|
|
|
|
2005-02-10 09:35:52 +01:00
|
|
|
[root@pim udev.kay]# extras/volume_id/udev_volume_id -t /dev/hda3
|
2004-05-12 09:52:52 +02:00
|
|
|
swap
|
|
|
|
|
|
|
|
|
|
|
|
Please send any comment/questions/concerns to me or:
|
|
|
|
linux-hotplug-devel@lists.sourceforge.net
|
|
|
|
|
|
|
|
Kay Sievers <kay.sievers@vrfy.org>
|