I just upgraded my desktop from Ubuntu Komic Koala to Ludicrous Lynx,
and upgraded to the latest. I now find that I cannot launch any virtual
machines using libvirt/qemu.
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, but that could be because
of launchpad's brain-dead search.)
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
Is there a fix?
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