We have new additional business for our meeting today.
We had a long discussion about arm-image-installer and various issues with maintaining LVM
devices.
As it has now become clear, all this is the result of an unannounced silent change in LVM,
which has led to a drastically different behavior of the software.
See
https://bugzilla.redhat.com/show_bug.cgi?id=2258764
Obviously with F38 LVM changed from searching all devices with pvs and vgscan to
searching just devices listed in /etc/devices/system.devices it it exists. Even worse, the
update using dnf upgrade plugin create that directory, but not the file, whereas a new
installation also creates the file. This gives us two fundamentally different behaviors of
the same release status.
In my opinion, this change would have required a change proposal and also a detailed
explanation in the release notes. Unfortunately, that approach has led to considerable
unnecessary and wasted extra work for many people.
Anyway, now we have to find a solution. The LVM behavior is apparently controlled by a
parameter that currently limits the search for VGs to devices listed in the file in
question. I suggest to change the behavior to search on all devices via Change Proposal,
and thus restore the behavior of F37 and earlier.
There seems to be an option use_devicesfile in lvm.conf. Details in the bug report above.
--
Peter Boy
https://fedoraproject.org/wiki/User:Pboy
PBoy(a)fedoraproject.org
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