[Libguestfs] Issue with virt-sysprep

[Graeme Lambert]

Hi,

Just to confirm for the list, following discussions with Richard in the 
IRC chat, the solution has been to use rbd-fuse to mount the Ceph RBD 
pool and run virt-sysprep from there.

Documentation for rbd-fuse at http://ceph.com/docs/next/man/8/rbd-fuse/

Best regards

*Graeme
*

On 07/01/14 10:13, Richard W.M. Jones wrote:
> On Tue, Jan 07, 2014 at 10:06:16AM +0000, Graeme Lambert wrote:
>> Hi,
>>
>> I'm trying to run virt-sysprep against a disk in Ceph RBD storage
>> but I appear to be unable to do so.
>>
>> The commands (bold) and outputs I've had are:
>>
>> On Ceph node:
>> *virt-sysprep -a rbd://localhost/libvirt-pool/ubuntu-12-04-beanstalk001*
>> libguestfs: new guestfs handle 0x113b060
>> rbd://localhost/libvirt-pool/ubuntu-12-04-beanstalk001: No such file
>> or directory
>> libguestfs: trace: close
>> libguestfs: closing guestfs handle 0x113b060 (state 0)
> Ahhhh ...
>
> I think the problem is virt-sysprep is too old, ie. predates us adding
> support for remote disks.  IIRC you need >= 1.22 and you say below you
> are using 1.14.8 which is very old.
>
> Note that even if you have the latest version, no one has actually
> tested Ceph support which probably means it's buggy.  There is some
> discussion on the mailing list about this.
>
>> On libvirt node:
>> *virt-sysprep -d beanstalk002 --hostname beanstalk002 --format rbd*
>> Examining the guest ...
>> Fatal error: exception Guestfs.Error("libvirt domain has no disks")
> The error means that virt-sysprep was not able to find any "ordinary"
> disks by looking at the libvirt XML description of the guest.  It's
> likely to be the same problem as above, since the old virt-sysprep
> will ignore anything which is not a local file.
>
>> I'm using Ubuntu 13.04 on libvirt node and Ubuntu 12.04.3 LTS on the
>> Ceph node.  The libguestfs version showing in dpkg is 1:1.14.8-1.
>>
>> This works fine on qcow2 images that are on disk but I'm moving
>> towards having all disks in Ceph RBD and would like to be able to
>> virt-sysprep disks in there if at all possible.
>>
>> Please can you advise where I'm going wrong?
> If Ceph support even upstream is broken, then it will need development
> work to fix (starting with filing a bug ...)  But anyway nothing is
> expected to work with 1.14.
>
> Rich.
>

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://listman.redhat.com/archives/libguestfs/attachments/20140107/87d70809/attachment.htm>