On 09/04/2012 04:53 AM, ching wrote:
> On 09/04/2012 02:23 PM, Paolo Bonzini wrote:
>> Il 04/09/2012 02:03, ching ha scritto:
>>> i add boot order and the virtual machine still boot from hard disk instead of cd-rom
>>>
>>> <disk type='file' device='disk'>
>>>       <driver name='qemu' type='raw' cache='unsafe' io='native'/>
>>>       <source file='/Linux.raw_image'/>
>>>       <target dev='sda' bus='scsi'/>
>>>       <boot order='2'/>
>>>       <address type='drive' controller='0' bus='0' target='0' unit='0'/>
>>>     </disk>
>>>     <disk type='file' device='cdrom'>
>>>       <driver name='qemu' type='raw' cache='unsafe' io='native'/>
>>>       <source file='/xubuntu-12.04-desktop-amd64.iso'/>
>>>       <target dev='sdb' bus='scsi'/>
>>>       <readonly/>
>>>       <boot order='1'/>
>>>       <address type='drive' controller='0' bus='0' target='0' unit='1'/>
>>>     </disk>
>>>
>>> here is the captured command line generated by libvirt (uuid and mac address are masked)
>> Ah, ok.  libvirt for now supports only booting from LUN 0.  You can use
>> multiple targets instead of multiple units.
>>
>> Paolo
>>
> 
> it works. thanks a lot.
> hope that libvirt will document it somewhere

Please raise this issue on the libvirt lists, then.

-- 
Eric Blake   eblake@redhat.com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org