[Libguestfs] [PATCH 2/2] v2v: ilnux: detect name of grub2-mkconfig

On Debian family of OSes Grub2 tools are prefixed with 'grub-', not with 'grub2-'. We have to detect the correct name of the tool to use it. Signed-off-by: Tomáš Golembiovský <tgolembi(a)redhat.com&gt; --- v2v/convert_linux.ml | 21 +++++++++++++++++++-- 1 file changed, 19 insertions(+), 2 deletions(-) diff --git a/v2v/convert_linux.ml b/v2v/convert_linux.ml index 103728b..1f5f12c 100644 --- a/v2v/convert_linux.ml +++ b/v2v/convert_linux.ml @@ -109,6 +109,23 @@ let rec convert ~keep_serial_console (g : G.guestfs) inspect source rcaps = Not_found -> error (f_"no grub1/grub-legacy or grub2 configuration file was found") in + let grub2_mkconfig_cmd = + if grub = `Grub2 then + try + (* Red Hat and Suse families *) + ignore (g#command [| "grub2-mkconfig"; "--version" |]); + "grub2-mkconfig" + with G.Error _ -> + try + (* Debian family *) + ignore (g#command [| "grub-mkconfig"; "--version" |]); + "grub-mkconfig" + with G.Error _ -> + error (f_"failed to find grub2-mkconfig binary (but Grub2 was detected on guest)") + else + "" + in + (* Grub prefix? Usually "/boot". *) let grub_prefix = match grub with @@ -1109,7 +1126,7 @@ let rec convert ~keep_serial_console (g : G.guestfs) inspect source rcaps = g#aug_save (); try - ignore (g#command [| "grub2-mkconfig"; "-o"; grub_config |]) + ignore (g#command [| grub2_mkconfig_cmd; "-o"; grub_config |]) with G.Error msg -> warning (f_"could not rebuild grub2 configuration file (%s). This may mean that grub output will not be sent to the serial port, but otherwise should be harmless. Original error message: %s") @@ -1431,7 +1448,7 @@ let rec convert ~keep_serial_console (g : G.guestfs) inspect source rcaps = (* If it's grub2, we have to regenerate the config files. *) if grub = `Grub2 then - ignore (g#command [| "grub2-mkconfig"; "-o"; grub_config |]); + ignore (g#command [| grub2_mkconfig_cmd; "-o"; grub_config |]); Linux.augeas_reload g ); -- 2.9.2