Problem to log after the last update of Ubuntu 12.04 LTS

Question

I'm using a Ubuntu 12.04 LTS.

Yesterday I did an update of the system. Now I cannot open either the graphical part or the console (Alt+Maj+F1). On the console, when I tape the password, the system is freezing, same with the graphical interface.

Surprisingly, I can connect to the guest session.

I restart the computer and go the grub option to open the old version (3.12.0-65) and the system is working fine.

I want to inform you that the 3.12.0-66 has a problem to log on a session.

Is someone can give me the process to ask Grub to launch the 3.12.0-65 automatically instead of the 3.12.0-66.

Possible duplicate of Freeze after upgrading kernel to 3.13.0-66 (14.04) or 3.19.0-31 (15.04) — Pilot6, Oct 08 '15 at 09:45
@Pilot6 Thank you for your advices. I did the update to correct the bug and I enabled proposed software source as you recommend. — user438973, Oct 09 '15 at 12:29

Mark Kirby · Answer 1 · 2015-10-08T09:43:17.783

1

Quick fix

Boot from 3.13.0-65 and just remove the problem kernel

sudo apt-get purge linux-image-3.13.0-66-generic

Update GRUB

sudo grub-update

Better fix

Alternatively if you would like to keep 3.13.0-66 you can edit this file

sudo nano /etc/default/grub

You will need to know the number in which the kernel you want appears in the grub menu.

Example

0 Ubuntu with 3.13.0-66-generic

1 Advanced options for Ubuntu

2 Ubuntu with 3.13.0-65-generic

You can see in the example the kernel you want is the third one down, so number two because computers count from zero, in this example scenario you would

Find the line GRUB_DEFAULT=0 and change it too GRUB_DEFAULT=2 to boot with 3.13.0-65-generic by default.

Don't forget to update your grub

sudo grub-update

edited Oct 08 '15 at 09:43

answered Oct 08 '15 at 08:36

Mark Kirby

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If this works for you (try it first) please press the check mark next to the answer so others can easily find it. – Mark Kirby Oct 08 '15 at 08:46
It is not 3.12, but 3.13. – Pilot6 Oct 08 '15 at 09:16
@Pilot6 Indeed it would seem so, 3.12.0-66 does no exist, updateing – Mark Kirby Oct 08 '15 at 09:42

score 0 · Accepted Answer · answered Oct 08 '15 at 09:16

You have this problem because you enabled proposed software source.

Kernel 3.13.0-66 is in proposed repository and is not stable.

I recommend to disable proposed in System Settings to avoid this kind of problems.

proposed is for testing purposes, not for normal use.

Problem to log after the last update of Ubuntu 12.04 LTS

2 Answers2