Re: [Xen-devel] [PATCH v4] xen/pygrub: grub2/grub.cfg from RHEL 7 has new commands in menuentry

[George Dunlap <George.Dunlap@xxxxxxxxxxxxx>]

create ^
title it RHEL 7 doesn't boot under pygrub
thanks

On Tue, Feb 4, 2014 at 6:10 PM, Joby Poriyath <joby.poriyath@xxxxxxxxxx> 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, RHEL 7 menu entries have two different single-quote
> delimited strings on the same line, and the greedy grouping for menuentry
> parsing gets both strings, and the options inbetween.
>
> Signed-off-by: Joby Poriyath <joby.poriyath@xxxxxxxxxx>
> Reviewed-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
> Cc: george.dunlap@xxxxxxxxxx
> ---
> v2: Added RHEL 7 grub.cfg in pygrub/examples
> v3 & v4: Tidied the commit message based on Andrew Cooper's feedback
>
> Kindly consider this patch for xen-4.4 as RHEL 7 (beta) fails to boot
> on Xen.
>
>  tools/pygrub/examples/rhel-7-beta.grub2 |  118 
> +++++++++++++++++++++++++++++++
>  tools/pygrub/src/GrubConf.py            |    4 +-
>  2 files changed, 121 insertions(+), 1 deletion(-)
>  create mode 100644 tools/pygrub/examples/rhel-7-beta.grub2
>
> diff --git a/tools/pygrub/examples/rhel-7-beta.grub2 
> b/tools/pygrub/examples/rhel-7-beta.grub2
> new file mode 100644
> index 0000000..88f0f99
> --- /dev/null
> +++ b/tools/pygrub/examples/rhel-7-beta.grub2
> @@ -0,0 +1,118 @@
> +#
> +# DO NOT EDIT THIS FILE
> +#
> +# It is automatically generated by grub2-mkconfig using templates
> +# from /etc/grub.d and settings from /etc/default/grub
> +#
> +
> +### BEGIN /etc/grub.d/00_header ###
> +set pager=1
> +
> +if [ -s $prefix/grubenv ]; then
> +  load_env
> +fi
> +if [ "${next_entry}" ] ; then
> +   set default="${next_entry}"
> +   set next_entry=
> +   save_env next_entry
> +   set boot_once=true
> +else
> +   set default="${saved_entry}"
> +fi
> +
> +if [ x"${feature_menuentry_id}" = xy ]; then
> +  menuentry_id_option="--id"
> +else
> +  menuentry_id_option=""
> +fi
> +
> +export menuentry_id_option
> +
> +if [ "${prev_saved_entry}" ]; then
> +  set saved_entry="${prev_saved_entry}"
> +  save_env saved_entry
> +  set prev_saved_entry=
> +  save_env prev_saved_entry
> +  set boot_once=true
> +fi
> +
> +function savedefault {
> +  if [ -z "${boot_once}" ]; then
> +    saved_entry="${chosen}"
> +    save_env saved_entry
> +  fi
> +}
> +
> +function load_video {
> +  if [ x$feature_all_video_module = xy ]; then
> +    insmod all_video
> +  else
> +    insmod efi_gop
> +    insmod efi_uga
> +    insmod ieee1275_fb
> +    insmod vbe
> +    insmod vga
> +    insmod video_bochs
> +    insmod video_cirrus
> +  fi
> +}
> +
> +terminal_output console
> +set timeout=5
> +### END /etc/grub.d/00_header ###
> +
> +### BEGIN /etc/grub.d/10_linux ###
> +menuentry 'Red Hat Enterprise Linux Everything, with Linux 
> 3.10.0-54.0.1.el7.x86_64' --class red --class gnu-linux --class gnu --class 
> os $menuentry_id_option 
> 'gnulinux-3.10.0-54.0.1.el7.x86_64-advanced-d23b8b49-4cfe-4900-8ef1-ec80bc633163'
>  {
> +       load_video
> +       set gfxpayload=keep
> +       insmod gzio
> +       insmod part_msdos
> +       insmod xfs
> +       set root='hd0,msdos1'
> +       if [ x$feature_platform_search_hint = xy ]; then
> +         search --no-floppy --fs-uuid --set=root --hint='hd0,msdos1'  
> 89ffef78-82b3-457c-bc57-42cccc373851
> +       else
> +         search --no-floppy --fs-uuid --set=root 
> 89ffef78-82b3-457c-bc57-42cccc373851
> +       fi
> +       linux16 /vmlinuz-3.10.0-54.0.1.el7.x86_64 root=/dev/mapper/rhel-root 
> ro rd.lvm.lv=rhel/swap vconsole.keymap=uk crashkernel=auto 
> rd.lvm.lv=rhel/root vconsole.font=latarcyrheb-sun16 LANG=en_GB.UTF-8
> +       initrd16 /initramfs-3.10.0-54.0.1.el7.x86_64.img
> +}
> +menuentry 'Red Hat Enterprise Linux Everything, with Linux 
> 0-rescue-af34f0b8cf364cdbbe6d093f8228a37f' --class red --class gnu-linux 
> --class gnu --class os $menuentry_id_option 
> 'gnulinux-0-rescue-af34f0b8cf364cdbbe6d093f8228a37f-advanced-d23b8b49-4cfe-4900-8ef1-ec80bc633163'
>  {
> +       load_video
> +       insmod gzio
> +       insmod part_msdos
> +       insmod xfs
> +       set root='hd0,msdos1'
> +       if [ x$feature_platform_search_hint = xy ]; then
> +         search --no-floppy --fs-uuid --set=root --hint='hd0,msdos1'  
> 89ffef78-82b3-457c-bc57-42cccc373851
> +       else
> +         search --no-floppy --fs-uuid --set=root 
> 89ffef78-82b3-457c-bc57-42cccc373851
> +       fi
> +       linux16 /vmlinuz-0-rescue-af34f0b8cf364cdbbe6d093f8228a37f 
> root=/dev/mapper/rhel-root ro rd.lvm.lv=rhel/swap vconsole.keymap=uk 
> crashkernel=auto rd.lvm.lv=rhel/root vconsole.font=latarcyrheb-sun16
> +       initrd16 /initramfs-0-rescue-af34f0b8cf364cdbbe6d093f8228a37f.img
> +}
> +
> +### END /etc/grub.d/10_linux ###
> +
> +### BEGIN /etc/grub.d/20_linux_xen ###
> +### END /etc/grub.d/20_linux_xen ###
> +
> +### BEGIN /etc/grub.d/20_ppc_terminfo ###
> +### END /etc/grub.d/20_ppc_terminfo ###
> +
> +### BEGIN /etc/grub.d/30_os-prober ###
> +### END /etc/grub.d/30_os-prober ###
> +
> +### BEGIN /etc/grub.d/40_custom ###
> +# This file provides an easy way to add custom menu entries.  Simply type the
> +# menu entries you want to add after this comment.  Be careful not to change
> +# the 'exec tail' line above.
> +### END /etc/grub.d/40_custom ###
> +
> +### BEGIN /etc/grub.d/41_custom ###
> +if [ -f  ${config_directory}/custom.cfg ]; then
> +  source ${config_directory}/custom.cfg
> +elif [ -z "${config_directory}" -a -f  $prefix/custom.cfg ]; then
> +  source $prefix/custom.cfg;
> +fi
> +### END /etc/grub.d/41_custom ###
> 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)
>              if title_match:
>                  if img is not None:
>                      raise RuntimeError, "syntax error: cannot nest menuentry 
> (%d %s)" % (len(img),img)
> --
> 1.7.10.4
>
>
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> http://lists.xen.org/xen-devel

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