G'day
Issue: How do I repair this situation?
>sudo pvscan
Metadata on /dev/sdd2 at 12800 has wrong VG name “fedora32 {
id = “gJgZM9-n2Rd-V7us-RWae-cpT6-H84E-g7dAsk”
seqno = 9
format = “lvm2”
status = [“RESIZEABLE”, “READ”, “WRITE”]
flag” expected fedora.
WARNING: Reading VG fedora on /dev/sdd2 failed.
WARNING: PV /dev/sdd2 is marked in use but no VG was found using it.
WARNING: PV /dev/sdd2 might need repairing.
Background:
I am a simple long-time developer, attempting to upgrade Fedora, first
exposure to LVM.
I cloned my old drive to a new one, same size. Pretty much out-of-the-box
installation - a single PV contains LVs root, home and swap
Upon completion, I renamed the Volume Group on the original drive (/dev/sdd2)
with the intent to mount both Volume Groups concurrently:
> sudo lvm vgrename GGUoJ7-Cj8n-yYnW-DjO7-HHJQ-mMey-jOlBXx fedora32
I'm working with a Fedora Live USB, LVM TOOLS 2.03.11(2) (2021-01-08), which
I rebooted at this point
A PVID conflict arose, which I solved by changing the PV UUID on the new
drive:
> sudo lvm pvchange -u /dev/sda2
Now I get no access to the logical volumes on the old drive with the error
above.
So how do either 1) correctly propagate or 2) roll back the Volume Group Name
change?
I’ve found some references to “repair”, recreating the LVM metadata, but am
hesitant as I would not like to lose the contents of the old drive. /etc/lvm
only has a backup from the pvchange execution on the new disk, nothing from the
original due to the reboot. I got in this situation thru RTFM - I didn’t
realise RTWholeFM was required. Still looking for procedures: where I went
wrong, how to fix it. Nothing in the archives seems to address this directly.
Has been ages since I patched disk sectors but that's the only option I have
any minor confidence in at this point. Is there a simple reference to a
procedure that can help me recover this?
Thanks
j
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