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Juan Leni
Asked: 2019-03-19 05:20:02 +0800 CST

Changing UUID for an LVM2_member

  • 772

I have cloned my SSD and rebooted with a Live distro to change the corresponding UUID.

Unfortunately when I run

tune2fs -U {some_UUID} /dev/sda5

I get the error

tune2fs: Bad magic number ....
/dev/sda5 contains a LVM2_member

This happens for both copies.. so I cannot change the UUID. If I try to book, the system does not start because of the duplicated UUIDs.

How can I change the UUID in this case?

ssd clone 18.04 uuid

2 Answers

  1. Best Answer

    I could fix it running:

    pvchange --uid /dev/sda5
    • 1

  2. pvchange --uuid /dev/sda5

    or

    pvchange -u /dev/sda5

    see man page: pvchange.man.txt

       -u|--uuid
          Generate new random UUID for specified PVs.
    • 0