Kernels

Created torsdag 27 oktober 2016

We'll install two Kernels - the Zen kernel, which is a good all' round desktop kernel, and the Long Time Support (lts) kernel in case we should ever get a Kernel panic.

Installation

# Both kernels comes from the official repository
$ pacman -S linux-zen linux-lts

Grub Configuration

# Edit the Grub configuration in /etc/default/grub
# We'll add a parameter and disable the sub-tree feature.

# Kernel parameters can be added to the GRUB_CMDLINE_LINUX_DEFAULT=
Ex. GRUB_CMDLINE_LINUX_DEFAULT="quiet splash parameter1 parameter2"

I/O Scheduler

# Enable the BFQ scheduler

GRUB_CMDLINE_LINUX_DEFAULT="elevator=bfq"

Disable Sub-tree

# Grub, by default, groups the linux and linux-lts kernel in a category tree (subcategory).
# To disable this, add the following to the Grub configuration

GRUB_DISABLE_SUBMENU=y

Update Grub

# Regenerate the configuration file for the above settings to take affect
$ grub-mkconfig -o /boot/grub/grub.cfg

Remove old kernels

# Reboot and check if everything works okay. If so, it is safe to remove linux and linux-headers