Single GPU Passthrough VM Start/Stop Script for Zsh

This script is meant to be sourced from your user's Z shell. I prefer to do this with an alias.

Why does this exist?

I wanted a script that could make sure that my GPU doesn't crash after I shut down my VM, because for one reason or another an application like VSCode, OBS, etc. would stick around even after I shutdown my desktop environment, and then break amdgpu.

I also wanted a script that was easy to add extra little things to, like mounting drives, changing the status of a service, or something else. You can add your own commands.

Finally, because of the aforementioned reason, I wanted a script that could run as the user.

This method tends to work more reliably for me than hook scripts, which is why I published it. Those commonly mentioned hook scripts have been unreliable for myself and others.

How do I use it?

I personally set up an alias in my ~/.zshrc, using a line like alias startvm="source somepath/start.sh" and alias revertvm="source somepath/revert.sh". You can just call the script directly using source if you want.

I sign out of my DE and then switch to a tty using Ctrl + Alt + F4 (or some other function key). I then sign in there, and run startvm (or equivalent).

This script allows you to choose a VM. You do not need to add the name of your VM in manually.