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Re: [Libguestfs] [PATCH v4 1/2] v2v: bootloaders: search grub config for all distributions

On Wednesday, 2 November 2016 15:01:08 CET Richard W.M. Jones wrote:
> From: Pavel Butsykin <pbutsykin virtuozzo com>
> This patch improves the search of grub config on EFI partition. This
> means that the config will be found not only for rhel but also for
> many other distributions.  Tests were performed on the following
> distributions: centos, fedora, ubuntu, suse. In all cases, the config
> path was /boot/efi/EFI/*distname*/grub.cfg
> The main purpose of the patch is to improve support for converting of
> vm with UEFI for most distributions. Unfortunately this patch does not
> solve the problem for all distributions, for example Debian does not
> store grub config on the EFI partition, therefore for such
> distributions another solution is necessary.
> Signed-off-by: Pavel Butsykin <pbutsykin virtuozzo com>
> Signed-off-by: Richard W.M. Jones <rjones redhat com>
> ---

Mostly LGTM (it was the approach I suggested, after all) -- just one
note below.

>  (* Grub1 (AKA grub-legacy) representation. *)
>  class bootloader_grub1 (g : G.guestfs) inspect grub_config =
> +  let () =
> +    if grub_config = "/boot/efi/EFI/redhat/grub.conf" then
> +      g#aug_transform "grub" "/boot/efi/EFI/redhat/grub.conf" in

I guess this could be changed to be:

  if String.is_prefix grub_config "/boot/efi/EFI/" then
    g#aug_transform "grub" grub_config

so even if we keep it around for a while, it will work fine also for
other distros than RH-based.

Pino Toscano

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