Re: [Xen-devel] [PATCH] xen/pygrub: grub2/grub.cfg from RHEL 7 has new commands in menuentry.

[Andrew Cooper <andrew.cooper3@xxxxxxxxxx>]

On 30/01/14 11:31, Joby Poriyath wrote:
> menuentry in grub2/grub.cfg uses linux16 and initrd16 commands
> instead of linux and initrd. Due to this RHEL 7 (beta) guest failed to
> boot after the installation.
>
> In addition to this, menuentry has some options as well
> (--class red, --class gnu, etc).
>
> Signed-off-by: Joby Poriyath <joby.poriyath@xxxxxxxxxx>

It is typical to put an example in tools/pygrub/examples

Also, you will need to CC George Dunlap and specify why this change
might want a freeze exception to be included in 4.4

> ---
>  tools/pygrub/src/GrubConf.py |    4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/tools/pygrub/src/GrubConf.py b/tools/pygrub/src/GrubConf.py
> index cb853c9..974cded 100644
> --- a/tools/pygrub/src/GrubConf.py
> +++ b/tools/pygrub/src/GrubConf.py
> @@ -348,7 +348,9 @@ class Grub2Image(_GrubImage):
>                  
>      commands = {'set:root': 'root',
>                  'linux': 'kernel',
> +                'linux16': 'kernel',
>                  'initrd': 'initrd',
> +                'initrd16': 'initrd',
>                  'echo': None,
>                  'insmod': None,
>                  'search': None}
> @@ -394,7 +396,7 @@ class Grub2ConfigFile(_GrubConfigFile):
>                  continue
>  
>              # new image
> -            title_match = re.match('^menuentry ["\'](.*)["\'] (.*){', l)
> +            title_match = re.match('^menuentry ["\'](.*?)["\'] (.*){', l)

Why is this necessary? fedora-19 also have the aformentioned "--class
red, --class gnu" yet is parsed happily.

~Andrew

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