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

[Nguetchouang Ngongang Kevin]

Ok, i see. 

Thanks for your time and question. 

I tried something different, it seems work for now.

---
Nguetchouang Ngongang Kevin
ENS de Lyon
https://perso.ens-lyon.fr/kevin.nguetchouang/ 

Le 2022-04-25 18:52, Richard W.M. Jones a écrit :

> 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
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