[fedora-virt] How to use virtio-scsi on F17 host and F17 guest

Cole Robinson crobinso at redhat.com
Thu Jun 7 14:44:24 UTC 2012


On 06/07/2012 10:33 AM, Gianluca Cecchi wrote:
> On Thu, Jun 7, 2012 at 4:01 PM, Cole Robinson wrote:
>> Nope, that's something different, so keep that. But do drop the <address
>> type='pci'... line from the <disk> block, and libvirt will generate you a new one.
>>
>> - Cole
>>
> 
> ah...ok sorry for the confusion.. too many virt* things ;-)
> 
> BTW it is working like a charm at the moment without any complaint.
> Even the encrypted /home I have inside the guest that has
> /dev/mapper/luks-4b0a873a-72bf-4153-b188-65ee9a6449f1
> as first field of /etc/fstab
> I'm going to do some testing.
> Thank you very much in the mean time
> Any problems with the disk config when managing any other parameter in
> virt-manager for this vm, such as adding a network card or other
> things?
> 
> For the note, after starting the domain, the <disk> and <controller>
> blocks has been changed this way:
> 
>     <disk type='file' device='disk'>
>       <driver name='qemu' type='qcow2'/>
>       <source file='/var/lib/libvirt/images/f17.img'/>
>       <target dev='sda' bus='scsi'/>
>       <address type='drive' controller='0' bus='0' target='0' unit='0'/>
>     </disk>
> 
>     <controller type='scsi' index='0' model='virtio-scsi'>
>       <address type='pci' domain='0x0000' bus='0x00' slot='0x06'
> function='0x0'/>
>     </controller>
> 
> Gianluca

That's all expected, it's libvirt adding stable device addressing so that some
future qemu update doesn't change defaults and rearrange your hardware, which
can upset guests (particularly windows).

- Cole


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