How to remove/ignore most recent kernel?

Question

After the most recent kernel upgrade, my system hangs during boot. Since my machine seems especially persnickety about pulling up the grub menu*, what is the best way to set the previous kernel as the default until the next upgrade?

*I have to hit ESC at exactly the right moment, which usually means rebooting several times until I get it.

To see the Grub menu at boot it is recommended to press and hold the Shift key during boot. — Takkat, May 06 '11 at 18:33

score 3 · Answer 1 · answered May 06 '11 at 18:13

3

An nice application is available in the Software Centre which should help you. Its called "Startup Manager".

It looks like this: enter image description here

Choose the Kernel you wish to default to in the drop-down list and then click Close to complete.

answered May 06 '11 at 18:13

fossfreedom

172,746

score 1 · Answer 2 · answered May 06 '11 at 17:50

1

Once started with the old kernel, modify your /etc/default/grub with

GRUB_DEFAULT="title"

where "title" is the exact menu title of the kernel you want to start. You can somehow obtain this with

grep menuentry /boot/grub/grub.cfg

Then run sudo update-grub and you can live until the next kernel upgrade, when you can set back GRUB_DEFAULT to 0 or choose another "title".

answered May 06 '11 at 17:50

enzotib

93,831

Thanks for the tip. Where do we find the title if /boot/grub/grub.cfg does not exist? – Mark Stosberg Jun 13 '12 at 15:31
@MarkStosberg: if you don't have grub.cfg it means that you don't have grub installed or you have the old grub, so this tip do not apply. – enzotib Jun 13 '12 at 17:57
Thanks for the reply @enzotib. I found that if I run 'update-grub', the file is created. – Mark Stosberg Jun 13 '12 at 19:08

How to remove/ignore most recent kernel?

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