Can't log in after upgrading kernel to 3.16

Question

I was running 14.04 and everything worked great till I installed kernel 3.16 with the command sudo apt-get install linux-image-generic-lts-utopic and rebooted.

Now I am unable to log in. It boots up to my log on screen (only one screen is working now) but when I put my password in it acts as if it is logging in but goes back the the login screen (login loop). I can enter the tty, from which I ran an update. Yet I'm still unable to login via the GUI.

Please [edit] your question and give output of lspci -k | grep -EA2 'VGA|3D' terminal command. It looks like video driver did not build for the new kernel. Anyway you can boot into 3.13 using grub menu. Old kernel is still there. — Pilot6, Jul 06 '15 at 12:59
@Pilot6: if you tell him how to back out of the change, the above comment is an answer IMHO! ;-) — Fabby, Jul 06 '15 at 20:23

score 1 · Answer 1 · edited Apr 13 '17 at 12:24

1

It's never a good thing to try and mix kernels from other versions of Ubuntu; it's not even something I would try to do: I would just upgrade to that version... (and getting kernels from another version is not supported here neither).

Therefore, just restore the system backup you took before you tried to do this...

Oh? Right! You don't have a system back-up! :-( Well, read the above link and start making system back-ups from now on.

To back out of the current mess, reboot Ubuntu into a previous kernel by pressing Shift while booting, boot the second-newest kernel you have on your system, install synaptic:

sudo apt-get install synaptic

and then run it, delete the 3.16 linux image and headers and reboot again.

edited Apr 13 '17 at 12:24

Community

1

answered Jul 06 '15 at 20:43

Fabby

34,259

No! This will not remove the kernel. It is meta package. After second reboot it will be the same kernel. – Pilot6 Jul 06 '15 at 20:44
I suggest to wait for OP's response. – Pilot6 Jul 06 '15 at 20:46
Better????????? – Fabby Jul 06 '15 at 20:47
I have no idea if grub-customizer can remove kernels. I would use synaptic for that. I suspect grub-customizer only can remove some items from menu. After update-grub it appears again. Never used that customizer. – Pilot6 Jul 06 '15 at 20:49
I use grub-customizer´ to edit the menu andgtk-orphan` to remove orphaned stuff... – Fabby Jul 06 '15 at 20:52
1

I fixed it. It is not a matter of the menu. Kernel must be removed. – Pilot6 Jul 06 '15 at 20:52
спасибо! Thanking you with some work now... ;-) – Fabby Jul 06 '15 at 20:55
Let us continue this discussion in chat. – Fabby Jul 06 '15 at 20:59

score 0 · Answer 2 · answered Jul 08 '15 at 12:19

0

Thanks everyone for your responses, but I end up just purged the 3.16 kernel and rebooted. Kernel is now back at 3.13 and everything is good.

answered Jul 08 '15 at 12:19

user3451049

21
4

That is exactly what we suggested. – Pilot6 Jul 08 '15 at 12:41
@Pilot6, Yes you did suggest that and that is why i'm thanking all of you, because you did help. The "just purged" comment was just to infer that I couldn't fix it with out going back to my old kernel. – user3451049 Jul 10 '15 at 02:03

Can't log in after upgrading kernel to 3.16

2 Answers2