Ubuntu – Wrong kernel after upgrade — old kernel still installed

kernelupgrade

I just upgraded from 13.10 to 14.04, but when I do uname -r, it says I have kernel 3.11. I want to have the default 14.04 kernel, (3.13 I believe). How can I get this?

Best Answer

This is very similar to Ubuntu 13.10, kernel still 3.8.0-31-generic --- answering here so that this is a more generic question/answer.

Sometime in the upgrade process the kernel meta-packages are "lost". The basic solution is to reinstall the generic kernel package:

sudo apt-get install linux-generic

which should give you the correct kernel packages and headers after a:

sudo apt-get update; sudo apt-get upgrade

(obviously if you have -rt or -lowlatency or other "flavored" kernels you have to adapt this to your case)

Sometime the system is (wrongly) convinced it has the newest kernel: in that case, try

sudo apt-get install --reinstall linux-generic

Related Solutions

Ubuntu – Old kernel in 13.10

Remove the custom 3.9 kernel you've installed before:

sudo apt-get remove linux-\.\*3\.9\.\*

This will remove all packages with a name matching linux-*3.9.*.

During the execution of apt-get it should reload the bootloader configuration, but just to be sure you may run

sudo update-grub

and it should list only the 3.11 kernels with Saucy.

Please note that all the time before you've been running an unpatched kernel. Avoid that next time, unless you know what you're doing, as you'll have to update the kernel yourself if you do that.

Ubuntu – Ubuntu 13.10, kernel still 3.8.0-31-generic

Happened exactly the same, I noticed that now that I had to compile wacom drivers. For whichever reason, the package linux-image-generic was not installed (probably ocurred during the upgrade from 13.04 to 13.10).

sudo apt-get install linux-image-generic

seems to correct the fact (will modify this if not).

You can also do

sudo apt-get install linux-generic

to automatically install the kernel headers, too (thanks to Lars Nyström).

(obviously if you have -rt or -lowlatency kernels you have to adapt this to your case)

Best Answer

Related Solutions

Ubuntu – Old kernel in 13.10

Ubuntu – Ubuntu 13.10, kernel still 3.8.0-31-generic

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