[Libguestfs] [PATCH] v2v: linux: pass the root device when using SUSE's mkinitrd

[Cedric Bosdonnat]

ACK.

On Mon, 2017-05-15 at 14:52 +0200, Pino Toscano wrote:
> mkinitrd in SLE guests < 12 tries to get the root device by scanning the
> fstab: this will fail, since v2v already remapped the devices from
> hd*/sd* to vd* in the guest (including in its fstab).
> 
> Since we know what is the root device in the appliance, pass it to
> mkinitrd directly, so it does not have to do guesswork.
> 
> Thanks to: Cédric Bosdonnat, for reporting the issue, and testing
> the fix.
> ---
>  v2v/convert_linux.ml | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/v2v/convert_linux.ml b/v2v/convert_linux.ml
> index a1088b3..f8dfa00 100644
> --- a/v2v/convert_linux.ml
> +++ b/v2v/convert_linux.ml
> @@ -517,7 +517,8 @@ let rec convert (g : G.guestfs) inspect source output rcaps =
>            g#command [| "/sbin/mkinitrd";
>                         "-m"; String.concat " " modules;
>                         "-i"; initrd;
> -                       "-k"; kernel.ki_vmlinuz |]
> +                       "-k"; kernel.ki_vmlinuz;
> +                       "-d"; inspect.i_root |]
>          )
>        )
>        else if family = `Debian_family then (