Two different disks show the same UUID and updating UUID also applies to both
Issue
- After adding a new local disk, it shows the same UUID for /dev/sdb1 and /dev/vx/dmp/disk_0s1
[root@localhost by-id]# blkid
...
/dev/sdb1: UUID="660c40f1-d3ea-48f4-a0da-e94b1de8b5f5" TYPE="ext4"
/dev/vx/dmp/disk_0s1: UUID="660c40f1-d3ea-48f4-a0da-e94b1de8b5f5" TYPE="ext4"
- If changes the UUID for one disk, it applies to the other as well
[root@localhost by-id]# uuidgen
56c04d8f-3e30-4e94-82f2-9848568414ef
[root@localhost by-id]# tune2fs /dev/vx/dmp/disk_0s1 -U 56c04d8f-3e30-4e94-82f2-9848568414ef
tune2fs 1.41.12 (17-May-2010)
[root@localhost by-id]# blkid
...
/dev/sdb1: UUID="56c04d8f-3e30-4e94-82f2-9848568414ef" TYPE="ext4"
/dev/vx/dmp/disk_0s1: UUID="56c04d8f-3e30-4e94-82f2-9848568414ef" TYPE="ext4"
Environment
- Red Hat Enterprise Linux
Subscriber exclusive content
A Red Hat subscription provides unlimited access to our knowledgebase of over 48,000 articles and solutions.
Close
Welcome! Check out the Getting Started with Red Hat page for quick tours and guides for common tasks.