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74 lines
2.4 KiB
Plaintext
74 lines
2.4 KiB
Plaintext
vol_id - partition, filesystem, disklabel reader
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This program is normally called from a udev rule, to provide udev with the
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name, uuid or the filesystem type of a partition to name a device node.
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vol_id opens the blockdevice node specified at the commandline.
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The following commandline switches are supported to specify what vol_id
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should print:
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--export prints all values
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-h prints help text
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-l prints the label of the partition
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-u prints the uuid of the partition
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vol_id will only return successful if the string asked for, is not
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empty. All trailing whitespace will be removed, spaces replaced by underscore
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and slashes ignored.
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fstype probe label uuid fsversion
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----------------------------------------------------
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ext * * * *
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reiserfs jr/3.5/3.6/4 * * * *
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fat (12, 16, 32) * * * *
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ntfs * * * *
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jfs * * * -
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xfs * * * -
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hfs (plus, wrapped) * * * -
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udf * * - -
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iso9660 * * n/a -
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ufs * - - -
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linux swap * * * *
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LVM 1 * - - -
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LVM 2 * - - *
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linux raid * - * *
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cramfs * * - -
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sysv * * - *
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luks * - * -
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hpfs * - - -
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romfs *
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minix *
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dasd *
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highpoint *
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isw_raid *
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lsi_raid *
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nvidia_raid *
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promise_raid *
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silicon_raid *
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via_raid *
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mac partitons *
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msdos partitions *
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The following rule will create a symlink named with the label string:
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KERNEL=="[hs]d*", PROGRAM=="/sbin/vol_id -l %N", SYMLINK+="%c"
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If no label is found vol_id exits with nonzero and the rule will be
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ignored.
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To give it a try, you may call it on the commandline:
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[root@pim udev.kay]# extras/volume_id/vol_id /dev/hda3
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T:ext3
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L:Music Store
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N:Music_Store
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U:d2da42b5-bbd9-44eb-a72c-cc4542fcb71e
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[root@pim udev.kay]# extras/volume_id/vol_id -l /dev/hda3
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Music_Store
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[root@pim udev.kay]# extras/volume_id/vol_id -t /dev/hda3
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swap
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Any comment/questions/concerns to me:
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Kay Sievers <kay.sievers@vrfy.org>
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