[Bug 1102925] Re: grub-reboot does not select kernel

[Brian Candler]

Having found
http://ubuntuforums.org/showthread.php?t=1428427
it looks like the pre-requisite is to configure

GRUB_DEFAULT=saved

There is a comment at the top of /etc/default/grub which refers the
reader to info -f grub -n 'Simple configuration' where this is
documented.

However it is not mentioned in the manpages of grub-reboot, grub-set-
default or grub-editenv; I think it would be useful if it were.

-- 
You received this bug notification because you are a member of Ubuntu
Foundations Bugs, which is subscribed to grub2 in Ubuntu.
https://bugs.launchpad.net/bugs/1102925

Title:
  grub-reboot does not select kernel

Status in “grub2” package in Ubuntu:
  New

Bug description:
  [Ubuntu 12.04.1 LTS server x86_64]

  If I do

  [code]
  # vi /etc/default/grub
  GRUB_DEFAULT="2>20"
  # update-grub
  [/code]

  then I can select the default kernel to be used on next reboot.

  However I believe it should be possible to do this in a one-shot way
  with grub-reboot, and this doesn't work.

  [code]
  # grub-reboot "2>20"
  # cat /boot/grub/grubenv
  # GRUB Environment Block
  saved_entry=2>20
  prev_saved_entry=0
  ################################
  ...
  # reboot
  [/code]

  At reboot I just get the default kernel selected.

  It doesn't appear to be anything to do with submenus[*] because "grub-
  reboot 1" doesn't even select the recovery option from the main menu.

  [*] http://ubuntuforums.org/showthread.php?p=10720316

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1102925/+subscriptions