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I manually installed kernel 4.2.0-38 on Ubuntu 14.04.4.

This morning, Ubuntu automatically reinstalled 3.13.0.91.

Start-Date: 2016-06-28  06:33:35
Install: linux-headers-3.13.0-91:amd64 (3.13.0-91.138, automatic), linux-image-extra-3.13.0-91-generic:amd64 (3.13.0-91.138, automatic), linux-image-3.13.0-91-generic:amd64 (3.13.0-91.138, automatic), linux-headers-3.13.0-91-generic:amd64 (3.13.0-91.138, automatic)
Upgrade: linux-headers-generic:amd64 (3.13.0.88.94, 3.13.0.91.97), linux-libc-dev:amd64 (3.13.0-88.135, 3.13.0-91.138), linux-image-generic:amd64 (3.13.0.88.94, 3.13.0.91.97), linux-generic:amd64 (3.13.0.88.94, 3.13.0.91.97)
End-Date: 2016-06-28  06:37:08

I have read a solution to the problem here, but I would like to understand what happened exactly and why.

Isn't 4.2 officially supported by 14.04.4?

EDIT: I forgot to provide a piece of information: at the next boot, I would actually go into the 3.19 kernel (this is actually the big problem, I wouldn't mind otherwise):

vpii@hw10:~$ ls -l /vmlinuz
lrwxrwxrwx 1 root root 30 Jun 28 04:33 /vmlinuz -> boot/vmlinuz-3.13.0-91-generic
vpii@hw10:~$ ls -l /vmlinuz.old
lrwxrwxrwx 1 root root 29 Jun 24 10:49 /vmlinuz.old -> boot/vmlinuz-4.2.0-38-generic
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Vincenzo Pii
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1 Answers1

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If you do not want apt to upgrade the 3.13 kernels, remove meta packages by

sudo apt-get remove linux-image-generic linux-headers-generic

If you want to get updates for the 4.2 kernel, install the meta package for it by

sudo apt-get install linux-generic-lts-wily

The 4.2 is shipped with Ubuntu 14.04.4 by default. You have older meta packages because you installed Ubuntu before 14.04.4 has been released, or installed linux-image-generic manually following some guide.

Pilot6
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  • Thanks. If I just add the wily updates and don't remove linux-image-generic and linux-headers-generic, I will have the same problem everytime a new kernel in the 3.13 series will be released? – Vincenzo Pii Jun 28 '16 at 17:07
  • Yes, you will get 3.13 updates. But it is not a problem ;-) – Pilot6 Jun 28 '16 at 17:35