[ovirt-users] disk not bootable

[Michal Skrivanek]

> On 04 Jul 2016, at 17:43, Francesco Romani <fromani at redhat.com> wrote:
> 
> ----- Original Message -----
>> From: "Nir Soffer" <nsoffer at redhat.com>
>> To: "Fernando Fuentes" <ffuentes at darktcp.net>
>> Cc: "Francesco Romani" <fromani at redhat.com>, "users" <users at ovirt.org>
>> Sent: Saturday, July 2, 2016 11:18:01 AM
>> Subject: Re: [ovirt-users] disk not bootable
>> 
>> On Sat, Jul 2, 2016 at 1:33 AM, Fernando Fuentes <ffuentes at darktcp.net>
>> wrote:
>>> Nir,
>>> 
>>> Ok I ran another test and this one I moved from NFS domain to iSCSI and
>>> stop working than I moved it back and still unable to run... Windows VM
>>> is saying "no available boot disk"
>>> VM: Win7-Test
>>> Host: Zeta
>>> Info as requested:  http://pastebin.com/1fSi3auz
>> 
>> We need a working xml to compare to.
> 
> [snip expected changes]
> 
> 
>>  <entry name="manufacturer">oVirt</entry>
>>  <entry name="product">oVirt Node</entry>
>>  <entry name="version">6-5.el6.centos.11.2</entry>
>> - <entry name="serial">C938F077-55E2-3E50-A694-9FCB7661FD89</entry>
>> + <entry name="serial">735C7A01-1F16-3CF0-AF8C-A99823E95AC0</entry>
>> 
>> Not expected - maybe this is confusing windows?

Nope, only specific licensing software seem to be checking this

>> 
>> Francesco, why vm serial has changed after moving disks from one storage
>> domain
>> to another?
> 
> We put in serial either
> 1. the UUID Engine send to us
> 2. the host UUID as returned by our getHostUUID utility function
> 
> the latter is unlikely to change, even after this disk move.

depends on which host the VM is started. It’s the host-derived ID so it’s often different every time you run a VM.
So I suppose here it just means the VM was launched on a different host. It shouldn’t be significant to the boot issue.

> 
> So the first suspect in line is Engine
> 
> Arik, do you know if Engine is indeed supposed to change the UUID in this flow?
> That seems very surprising.
> 
> Thanks and bests,
> 
> -- 
> Francesco Romani
> RedHat Engineering Virtualization R & D
> Phone: 8261328
> IRC: fromani
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