How to switch to Long Term Support (LTS) kernel - Arch Linux

gistfile1.txt

- install lts kernel
  sudo pacman -S linux-lts

-or-
  sudo pacman -S linux-lts linux-lts-headers

- (optional) check if kernel, ramdisk and fallback are available 
  ls -lsha /boot

- (optional) remove the standard kernel
  you can skip this step and have both kernels installed at once. 
  For me, lts was selected by default after rebooting, 
  but I could also go into grub's advanced options and select the standard kernel instead.
  
  pacman -R linux



- update the grub config 
  grub-mkconfig -o /boot/grub/grub.cfg

reboot

Note:
may need to replace any kernel modules with their lts equivalent as well. 

e.g. if acpi_call was previously installed, it's probably best to also install acpi_call-lts, otherwise the module won't load. 

http://www.yourtypicalguide.com/for-tech/tips-and-tricks/arch-linux-how-to-switch-to-long-term-support-lts-kernel/

https://unix.stackexchange.com/questions/284617/how-to-switch-arch-linux-to-lts-kernel