kmodguard
The Problem
I've noticed that things might randomly break after doing a kernel update on Arch Linux. The VPN won't start, or a dongle won't be detected, etc.
This happens because the kernel modules for the currently running version of the kernel get deleted with each upgrade. As a result drivers won't be able to load, and the only way to recover is to reboot the system and run the upgraded kernel.
The Solution
kmodguard is a utility that hooks to pacman and backs up the kernel modules
before they get deleted, then places them in the correct path. Unused backups
get deleted at boot using a systemd service. This allows for a fully usable
system after a kernel update.
Setup
WARNING: This might break your system
- Clone the repository
# make install# systemctl enable kmodguard-clean.service