Show the UUID of a filesystem or partition

blkid /dev/sda7
Shows the UUID of the given partition (here /dev/sda7). Doesn't need to be root.
Sample Output
/dev/sda7: LABEL="fedora" UUID="ab6f0ee7-ebdd-484a-ae1a-c4053a426e0f" TYPE="ext4"

9
By: lineak
2010-09-05 12:20:45

3 Alternatives + Submit Alt

  • Shows the UUID of a filesystem or partition that can be used in kernel root options and in fstab. Run it without the -u option to generate more information. eg: ~/ sudo vol_id /dev/sda2 ID_FS_USAGE=other ID_FS_TYPE=swap ID_FS_VERSION=2 ID_FS_UUID=27fca13d-97b7-4d28-882c-6d03353f0a82 ID_FS_UUID_ENC=27fca13d-97b7-4d28-882c-6d03353f0a82 ID_FS_LABEL= ID_FS_LABEL_ENC= Show Sample Output


    3
    sudo vol_id -u /dev/sda1
    agentk · 2009-04-30 01:40:58 1
  • Show the UUID-based alternate device names of ZEVO-related partitions on Darwin/OS X. Adapted from the lines by dbrady at http://zevo.getgreenbytes.com/forum/viewtopic.php?p=700#p700 and following the disk device naming scheme at http://zevo.getgreenbytes.com/wiki/pmwiki.php?n=Site.DiskDeviceNames Show Sample Output


    1
    ls /dev/disk* | xargs -n 1 -t sudo zdb -l | grep GPTE_
    grahamperrin · 2012-10-06 20:19:45 0
  • Doesn't need to be run as root.


    -2
    ls /dev/disk/by-uuid/ -alh
    John_W · 2010-09-04 20:38:28 0

What Others Think

On Ubuntu it needs to be run as root.
John_W · 414 weeks and 4 days ago

What do you think?

Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?

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