Public bug reported:
I just upgraded my desktop from Kosmic Koala to Lucid Lynx, and
upgraded to the latest. Everything worked fine prior to the upgrade
except some unrelated networking issues. I now find that I cannot
launch any virtual machines using libvirt/qemu/kvm and
libvirt-manager.
If I try to launch a VM having only a CD-ROM image for bulk storage, I
get:
File "/usr/share/virt-manager/virtManager/engine.py", line 588, in
run_domain
vm.startup()
File "/usr/share/virt-manager/virtManager/domain.py", line 150, in
startup
self._backend.create()
File "/usr/lib/python2.6/dist-packages/libvirt.py", line 300, in
create
if ret == -1: raise libvirtError ('virDomainCreate() failed',
dom=self)
libvirtError: internal error unable to start guest: libvir: QEMU
error : cannot set ownership
on /var/lib/libvirt/images/finnix-93.0.iso: Permission denied
This is a known bug: https://bugzilla.redhat.com/show_bug.cgi?id=517304
(I don't see any comparable bug in launchpad.)
If I try to launch a VM with only a virtual hard drive, I get:
File "/usr/share/virt-manager/virtManager/engine.py", line 588, in
run_domain vm.startup()
File "/usr/share/virt-manager/virtManager/domain.py", line 150, in
startup self._backend.create()
File "/usr/lib/python2.6/dist-packages/libvirt.py", line 300, in
create if ret == -1: raise libvirtError ('virDomainCreate() failed',
dom=self) libvirtError: internal error unable to start guest: libvir:
QEMU error : cannot change to '126' group: Operation not permitted
# grep 126 /etc/group /etc/passwd
/etc/group:kvm:x:126:
/etc/passwd:libvirt-qemu:x:120:126:Libvirt Qemu,,,:/var/lib/libvirt:/bin/false
Versions:
# pre libvirt kvm qemu
libvirt-bin 0.7.5-5ubuntu27 amd64
libvirt0 0.7.5-5ubuntu27 amd64
python-libvirt 0.7.5-5ubuntu27 amd64
qemu-common 0.12.3+noroms-0ubuntu9 all
qemu-kvm 0.12.3+noroms-0ubuntu9 amd64
# lsb_release -rd
Description: Ubuntu 10.04 LTS
Release: 10.04
# uname -a
Linux dzur 2.6.32-22-generic #36-Ubuntu SMP Thu Jun 3 19:31:57 UTC 2010 x86_64
GNU/Linux
# cat /proc/version_signature
Ubuntu 2.6.32-22.36-generic 2.6.32.11+drm33.2
ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: libvirt-bin 0.7.5-5ubuntu27
ProcVersionSignature: Ubuntu 2.6.32-22.36-generic 2.6.32.11+drm33.2
Uname: Linux 2.6.32-22-generic x86_64
Architecture: amd64
Date: Tue Jun 29 12:24:47 2010
ProcEnviron:
PATH=(custom, user)
LANG=en_US.utf8
SHELL=/bin/bash
SourcePackage: libvirt
** Affects: libvirt (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug lucid
--
Libvirt/kvm permissions/ownership issue on upgrade from Kosmic to Lucid
https://bugs.launchpad.net/bugs/599910
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