Change kernel on Ubuntu Server 14.04.3

Question

How may i change kernel on headless Ubuntu Server 14.04.3 64bit ? I want to try some dailybuilt kernels because current one includes grsec patches which cause segfault problems. Or even same kernel without grsec.

The current one

Linux ovh-tb 3.14.32-xxxx-grs-ipv6-64 #1 SMP Sat Feb 7 11:35:27 CET 2015 x86_64 x86_64 x86_64 GNU/Linux

Please read http://askubuntu.com/questions/706519/kernel-panic-at-boot-please-help/707042#707042 — DnrDevil, Dec 20 '15 at 13:12
@ DnrDevil, thanks but i followed another topic, see my answer below. — Demontager, Dec 20 '15 at 13:27

score 0 · Answer 1 · edited Apr 13 '17 at 12:25

I successfully did that procedure on production server. It is safe to update or change kernel by installing meta package:

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

But then you need change grub entry to use new kernel, so check current menuentries issue:

grep menuentry /boot/grub/grub.cfg

Edit /etc/default/grub as root then update GRUB_DEFAULT to the corresponding menuentry number. Remember that entries started from "0"

sudo update-grub

Change kernel on Ubuntu Server 14.04.3

1 Answers1