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Re: [Libvir] Create domU without any disks



On Thu, Nov 29, 2007 at 12:54:38PM -0500, Michael DeHaan wrote:
> Richard W.M. Jones wrote:
> >Tim Verhoeven wrote:
> >>I'm working on RHEL5.1 (libvirt-0.2.3-9.el5). I would like to know if
> >>it is possible, using libvirt, to create a Xen PVM domU that has no
> >>disks? And if this is possible how to code this ( a simple example is
> >>ok).
> >
> >Did you try taking the XML, either from another running domain or from 
> >the examples we give[1], and stripping out all the <disk> sections?  I 
> >looked at the code and it ought to work -- if it doesn't, then it's 
> >probably a bug.
> 
> (From IRC), Tim says it works for Xen ... and I just verified that qemu 
> doesn't like it.

Yep, QEMU itself wants at least one disk otherwise it complains bitterly.
One option is '-hda /dev/null' - libvirt should probably add this itself
if no disks are set in the XML.

Dan.
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