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[solved]grub2 : how to automatically boot older kernel

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toralf
Developer

Joined: 01 Feb 2004
Posts: 3922
Location: Hamburg

Posted: Sat Jan 25, 2014 6:38 pm Post subject: [solved]grub2 : how to automatically boot older kernel

given : 3 kernels in /boot (3.10.28, 312..9, 3.13.0) + memtest86plus
idea: grub2 should automatically boot kernel 3.12.9 using the automatically generated gub2 menu with

Code:

mount /boot/; grub2-mkconfig -o /boot/grub/grub.cfg

(example: http://bpaste.net/show/172048/) and the values in the config file /etc/default/grub

I tried nearly all values for GRUB_DEFAULT ("1", "2" and the complete menu item as a string) in /etc/default/grub together with grub2-set-default, eg

Code:

grub2-set-default 'Gentoo GNU/Linux, with Linux x86-3.12.9'

- no chance.

When I set GRUB_DEFAULT to a number then just the appropriate entry in the main menu is preselected, but I want the 2nd entry in the sub-menu ...

Any advice ?
hhm, will try "1>1" now hhm, works now

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