Difference between revisions of "Universally unique identifier (UUID)"

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* Filesystem UUID
 
* Filesystem UUID
 
* Block device UUID: <code>[[lsblk]] -io KNAME,TYPE,SIZE,MODEL,UUID</code>
 
* Block device UUID: <code>[[lsblk]] -io KNAME,TYPE,SIZE,MODEL,UUID</code>
 +
* LVM [[PV]] UUID
  
 
<pre>
 
<pre>
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<code>
+
<pre>
 
pvcreate --uuid "FmGRh3-zhok-iVI8-7qTD-S5BI-MAEN-NYM5Sk" --restorefile /etc/lvm/archive/VG_00050.vg /dev/sdh1
 
pvcreate --uuid "FmGRh3-zhok-iVI8-7qTD-S5BI-MAEN-NYM5Sk" --restorefile /etc/lvm/archive/VG_00050.vg /dev/sdh1
 
   Physical volume "/dev/sdh1" successfully created
 
   Physical volume "/dev/sdh1" successfully created
</code>
+
</pre>
  
  

Revision as of 11:22, 16 December 2019

TODO

  • Filesystem UUID
  • Block device UUID: lsblk -io KNAME,TYPE,SIZE,MODEL,UUID
  • LVM PV UUID
mkfs.ext4 /dev/vg01/lv01
mke2fs 1.44.1 (24-Mar-2018)
Creating filesystem with 2441850880 4k blocks and 305233920 inodes
Filesystem UUID: e6742357-a181-4b82-837f-9a01f3e52568
Superblock backups stored on blocks:
	32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208,
	4096000, 7962624, 11239424, 20480000, 23887872, 71663616, 78675968,
	102400000, 214990848, 512000000, 550731776, 644972544, 1934917632

Allocating group tables: done
Writing inode tables: done
Creating journal (262144 blocks): done
Writing superblocks and filesystem accounting information: done



pvcreate --uuid "FmGRh3-zhok-iVI8-7qTD-S5BI-MAEN-NYM5Sk" --restorefile /etc/lvm/archive/VG_00050.vg /dev/sdh1
  Physical volume "/dev/sdh1" successfully created


pvchange --uuid Generate new random UUID for specified PVs.


See also

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