Re: [PATCH 02/13] qemu: do not support non-network disks without -drive

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Il 11/03/2013 04:23, Osier Yang ha scritto:
> On 2013年02月26日 01:44, Paolo Bonzini wrote:
>> QEMU added -drive in 2007, and NBD in 2008.  Both appeared first in
>> release 0.10.0.  Thus the code to support network disks without -drive
>> is dead, and in fact it incorrectly escapes commas.  Drop it.
> 
> The network disks support appeared in 0.8.7: Jan 4 2011 actually.
> 
> commit 036ad5052b43fe9f0d197e89fd16715950408e1d
> Author: MORITA Kazutaka <morita.kazutaka@xxxxxxxxxxxxx>
> Date:   Mon Dec 6 16:24:09 2010 +0900
> 
>     add network disk support
> 
>     This patch adds network disk support to libvirt/QEMU.  The currently
>     supported protocols are nbd, rbd, and sheepdog.  The XML syntax is like
>     this:
> 
>         <disk type="network" device="disk">
>           <driver name="qemu" type="raw" />
>           <source protocol='rbd|sheepdog|nbd' name="...some image
> identifier...">
>             <host name="mon1.example.org" port="6000">
>             <host name="mon2.example.org" port="6000">
>             <host name="mon3.example.org" port="6000">
>           </source>
>           <target dev="vda" bus="virtio" />
>         </disk>
> 
>     Signed-off-by: MORITA Kazutaka <morita.kazutaka@xxxxxxxxxxxxx>
> 
> I believe -drive support is before 0.8.7, but how about libvirt is new
> enough with the network disk support, and qemu too old without -drive
> support?

Sorry for the confusion---I meant both -drive and NBD were in QEMU
0.10.0.  There is no released QEMU version that has only one of -drive
and NBD, and not even a source control commit that has NBD but not -drive.

Paolo

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