[Pkg-libvirt-maintainers] Bug#558197: Bug#558197: libvirt: virtual linux machine stopped to boot while trying to mount the root FS

[Guido Günther]

Hi Vincent,
On Sun, Dec 06, 2009 at 09:39:19PM +0100, Vincent Danjean wrote:
> Guido Günther wrote:
> > Are you using qemu:///system? If so it's likely that the build against
> > libcap-ng causes your problem. Are the images you're mouting belonging
> > to root:libvirt?
> 
> Perms was the problem. If I set root:libvirt 660 to my disk images, it works
> with the new version of libvirt.
> 
> I'm still thinking that if some special permissions are required, they should
> be checked and displayed (in doc and at runtime if there is a problem).
>   If I remember correctly (because I downgrade libvirt again, see below), kvm
> is still run by root (as reported by ps, top, ...) so it is not easy to find
> that a permission problem can arise and lead to a freeze of the VM.
This is due to the face that we're building against libcap-ng now so
the behaviour is correct. However, we're currently working on explicitly
setting the correct permissions on domain startup. See the experimental
branch in git.
Cheers,
 -- Guido