[ElectricalUnion]

If a rogue package rm's your root directory as root, you need a bit more that a few shell commands to fix it.

[mixmastamyk]

Can't happen unless you install as root. You're NOT DOING THAT are you?

Also LiveCDs are a thing for about twenty years. Recovery has never been easier, even after hardware failure.

[ElectricalUnion]

It doesn't even need root to cause damage most of the time, it just needs to overwrite all files under your user by mistake.

> Recovery has never been easier, even after hardware failure.

If you can use a LiveCD to repair it, it most likely wasn't a hardware failure to start.