Created attachment 959452 [details] virt-sysprep output Description of problem: virt-sysprep does not work under non-root user even though it works under root and e.g. virt-ls works on the same image under non-root. Version-Release number of selected component (if applicable): libguestfs-tools-c-1.26.9-1.fc20.x86_64 libvirt-daemon-1.1.3.6-2.fc20.x86_64 qemu-kvm-1.6.2-10.fc20.x86_64 How reproducible: Always on my system. Steps to Reproduce: Run virt-sysprep -d domain -c qemu:///system under non-root user (for whom polkit allows org.libvirt.unix.manage) Actual results: Attached output (w/ LIBGUESTFS_DEBUG/LIBGUESTFS_TRACE) Expected results: Successful virt-sysprep operation. Additional info: - SELinux in permissive mode. - (Relevant journal snippet attached.) - The image resides in libvirt pool that is on a separate partition (XML attached).
Created attachment 959453 [details] journalctl snippet
Created attachment 959454 [details] libvirt pool xml
This is likely a libvirt bug. The workaround is to stop using libvirt: export LIBGUESTFS_BACKEND=direct
If you go to ~/.cache/libvirt/qemu/log/ there should be a file called 'guestfs-6oh7wcy3l1y9hvvv.log' which contains the actual error from qemu or libvirt, which will help with diagnosing the real problem.
Actually I've seen it from the journal snippet: Nov 20 18:40:32 nfe libvirtd[26370]: unable to set security context 'unconfined_u:object_r:svirt_image_t:s0:c444,c704' on '/var/lib/libvirt/images/defaultpart/rhel65.qcow2': Operation not permitted It would be nice if libvirt actually gave us this error, instead of the misleading one about the monitor socket. Essentially libguestfs can't open a file that it doesn't have access to. It needs to have enough permissions to do that.
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