[Users] Permission denied on disk image file !!

[Itamar Heim]

On 10/15/2013 11:05 AM, Anil Dhingra wrote:
> Hi Guys
> Any know issue why we are not able to start VM due to permission issue
> on disk image file .. as per docs ownership should be vdsm:kvm  byt not
> sure why its showing below
> used - both  ovirt-node-iso-3.0.1-1.0.1.vdsm.el6 &
> ovirt-node-iso-3.0.1-1.0.2.vdsm.el6  same issue  [ using NFS Domain ]
> VM n0001vdap is down. Exit message: internal error process exited while
> connecting to monitor: qemu-kvm: -drive
> file=/rhev/data-center/d09d8a3e-8ab4-42fc-84ec-86f307d144a0/1a04e13a-0ed4-40d6-a153-f7091c65d916/images/44e3fc9b-0382-4c11-b00c-35bd74032e9a/34542412-ed50-4350-8867-0d7d5f8127fd,if=none,id=drive-virtio-disk0,format=raw,serial=44e3fc9b-0382-4c11-b00c-35bd74032e9a,cache=none,werror=stop,rerror=stop,aio=threads:
> *could not open *disk image
> */rhev/data-center*/d09d8a3e-8ab4-42fc-84ec-86f307d144a0/1a04e13a-0ed4-40d6-a153-f7091c65d916/*images*/44e3fc9b-0382-4c11-b00c-35bd74032e9a/34542412-ed50-4350-8867-0d7d5f8127fd:
> *Permission denied*
>
> [root at node1 44e3fc9b-0382-4c11-b00c-35bd74032e9a]# ls -lh
> total 1.1M
> -rw-rw----+ 1 *vdsm 96* 6.0G 2013-10-15 05:47
> 34542412-ed50-4350-8867-0d7d5f8127fd
> -rw-rw----+ 1 *vdsm 96* 1.0M 2013-10-15 05:47
> 34542412-ed50-4350-8867-0d7d5f8127fd.lease
> -rw-rw-rw-+ 1 *vdsm 96*  268 2013-10-15 05:47
> 34542412-ed50-4350-8867-0d7d5f8127fd.meta
> As it doesn't allow us o change permissions any alternate way for this
> ?or do I need to manually set permissions in *"/etc/libvirt/qemu.conf"*
> alos ther is no such *group *with*"96"* .. so from where it picks this
> config .
> Another question is related to SELINUX config change for below 2
> parameters to recover from error "*internal error Failed to open socket
> to sanlock daemon: Permission denied*" I saw some where this is fixed
> but not sure why it appears  VDSM should take care of this auto
> setsebool -P virt_use_sanlock=on
> setsebool -P virt_use_nfs=on
>
>
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>

have you tried:
http://www.ovirt.org/wiki/Troubleshooting_NFS_Storage_Issues