[Libguestfs] Virt-install, virt-customize, virt-builder

[Richard W.M. Jones]

On Mon, Apr 25, 2022 at 05:52:09PM +0100, Richard W.M. Jones wrote:
> On Mon, Apr 25, 2022 at 04:11:59PM +0100, Richard W.M. Jones wrote:
> > On Mon, Apr 25, 2022 at 04:40:15PM +0200, Nguetchouang Ngongang Kevin wrote:
> > > I want to achieve the external data file creation
> > > 
> > > "qemu-img create -o data_file_raw=on,data_file=path/to/file"
> > > 
> > > but there is no way to specify those options while using virt-builder.
> > 
> > Interesting - I had no idea about this feature before.
> > 
> > At the moment it's not possible to do this within virt-builder,
> > without patching virt-builder.  I guess maybe you can post-convert the
> > file after virt-builder has run?
> > 
> > I grepped the source of virt-install and it doesn't seem like it has
> > support either.  Nor does libvirt.
> > 
> > It should be possible to use virt-customize on these special qcow2
> > files, although I didn't try it.
> 
> I talked to Kevin and apparently this feature was added to qemu to

(I mean Kevin Wolf)

> support a particular downstream project (oVirt), but in the end they
> didn't use it and also support was never added to libvirt.  So it
> doesn't particularly sound like this is a well tested or widely used
> feature ...
> 
> Rich.
> 
> -- 
> Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
> Read my programming and virtualization blog: http://rwmj.wordpress.com
> virt-builder quickly builds VMs from scratch
> http://libguestfs.org/virt-builder.1.html

-- 
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
Read my programming and virtualization blog: http://rwmj.wordpress.com
virt-builder quickly builds VMs from scratch
http://libguestfs.org/virt-builder.1.html