Re: getting UUID and label of a filesystem

[Boyd Waters <bwaters+moz@nrao.edu>]

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Andreas Dilger wrote:

|>As non-root user?
|
|
| If you have a recent e2fsprogs (1.33+ I think), you can use "blkid" to
dump
| the UUID/LABEL of most filesystem types (including reiserfs, XFS, JFS,
ext*).
| If run as root it will create a cache of available block devices and
| their UUID/LABEL that non-root users can access even if they can't read
| the block device, so it doesn't need to be suid or anything.  You can also
| use it to locate specific devices by LABEL/UUID/TYPE from scripts, etc.

Great!

as non-root user:

$ /sbin/blkid /dev/loop5
/dev/loop5: LABEL="35" UUID="c9923c3f-da67-464f-ad55-6b4da22dabf0"\
TYPE="reiserfs"


So in a script:

#/bin/bash
FS_DEV=/dev/hda1
FS_UUID=`/sbin/blkid $FS_DEV | cut -d '"' -f4`


And this seems to work on non-reiser partitions, as well.
Nice, thanks!

~ - boyd


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