[Bug 1905412] Re: LVM install broken if other disks have meta-data on the VG name already
Christian Ehrhardt
1905412 at bugs.launchpad.net
Tue Nov 24 13:44:52 UTC 2020
** Attachment added: "log as it was left in the installer environment"
https://bugs.launchpad.net/ubuntu/+source/subiquity/+bug/1905412/+attachment/5437532/+files/1606223663.332479477.install_fail.crash
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https://bugs.launchpad.net/bugs/1905412
Title:
LVM install broken if other disks have meta-data on the VG name
already
Status in subiquity:
New
Status in Ubuntu on IBM z Systems:
New
Status in curtin package in Ubuntu:
New
Bug description:
Hi,
I was puzzled today at my install aborting until I was looking in the crash file.
There I've found:
Running command ['vgcreate', '--force', '--zero=y', '--yes', 'ubuntu-vg', '/dev/dasda2'] with allowed return codes [0] (capture=True)
An error occured handling 'lvm_volgroup-0': ProcessExecutionError - Unexpected error while running command.
Command: ['vgcreate', '--force', '--zero=y', '--yes', 'ubuntu-vg', '/dev/dasda2']
Exit code: 5
Reason: -
Stdout: ''
Stderr: A volume group called ubuntu-vg already exists.
And now things fall into place.
I've had a default vg as the installer creates it across a few disks.
Then later my main root disk was broken and I replaced it.
Now at install time I have activated all disks that I eventually
wanted to use (this is s390x therefore activate disks, but from the
bit I see in the crash I'd expect no other behavior if on e.g. x86
you'd replace one disk and try to re-install).
What happens is that the disks I'm not installing onto still have LVM metadata.
That has the "ubuntu-vg" defined and thereby crashes the install.
I think we will need to harden the installer that probably needs to
wipe some signatures and re-probe LVM to then get things going.
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