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

[Colin Watson]

Thanks for your report.  I've committed a change upstream for 2.01 to
document this:

2013-01-22  Colin Watson  <cjwatson at ubuntu.com>

        * util/grub-reboot.in (usage): Document the need for
        GRUB_DEFAULT=saved.
        * util/grub-set-default.in (usage): Likewise.
        Reported by: Brian Candler.  Fixes Ubuntu bug #1102925.

** Changed in: grub2 (Ubuntu)
   Importance: Undecided => Medium

** Changed in: grub2 (Ubuntu)
       Status: New => In Progress

** Changed in: grub2 (Ubuntu)
     Assignee: (unassigned) => Colin Watson (cjwatson)

-- 
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:
  In Progress

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