[Bug 1637601] Re: UbuntuKVM: migration using NFS mount fails #190

[ChristianEhrhardt]

@Mauricio Faria de Oliveira - with the passwd change in I looked deeper
into the proposed libvirt debdiff - Sorry to realize that only now, but
please help me to clarify/avoid these issues?

While overall I think it is a great fix to define a known uid/gid I'm
not so happy with the fact that it changes the group used for
libvirt/qemu on build. I think it needs some more fine tuning to be more
usable and less interuptive. Therefore I wanted to discuss the following
issues:

#1 On a given Xenial install as of today the files are owned by libvirt-
qemu:kvm (e.g. pools and images it creates). Those files will still be
owned by group "kvm", but after the upgrade libvirt/qemu will fail to
access properly right?

#2 I see on the xenial diff you remove the groups in postrm. That will
leave the files unowned, just with ther numeric gid. Is there any reason
to do this delgroup/deluser? And if so why not in Zesty?

#3 despite the other changes you left the --ingroup kvm - I think it is
right to leave it, but if you go the route of changing it to libvirt-
qemu this would need to change as well.

Once sorted out Colin might reassign (or a new one :-/) the gid to "kvm"
and you could implement it as libvirt-qemu:kvm staying compatible with
all setups out there already.


My suggestion would be:
- stick to libvirt-qemu:kvm
- do not drop the user/group on postrm
Do you think that would work for you then?

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https://bugs.launchpad.net/bugs/1637601

Title:
  UbuntuKVM: migration using NFS mount fails #190

Status in base-passwd package in Ubuntu:
  Fix Released
Status in libvirt package in Ubuntu:
  Triaged

Bug description:
  <...>

  Please see comments for the problem description, and summary of
  originally bridged comments in the description.

  Sorry about the inconvenience.

  <...>

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