I recently turned on my laptop upon returning home and found that it would not start DE properly, exhibiting 'Load Kernel Modules' errors and forcing me to use tty2 through 6 to achieve anything. Upon running
sudo ./systemd-modules-load from
/lib/systemd/, the following message is displayed:
Failed to find module 'mesa'
I am running an Intel HD Graphics 4000 graphics chipset and was able to boot perfectly fine less than 2 hours earlier without making any updates.
EDIT - Found the issue: a graphics library was missing.