Was running personal laptop on 4.10 kernel (running Manjaro).

Was having problems for some reason with an audio program I'm using and so needed to run some older kernel that is real time for better latency.

Installed that kernel and booted with it.

Attempted to remove kernel 4.10, I don't need it anymore.

Rebooted, some kernel modules aren't loading. Xorg not creating a session.

I have no input working.
Not even wifi.

I can't detect USB devices.

Tried to fix it all night.. going through a ton of forums online...

Finally I give up. I didn't have access to anther computer to get a bootable USB image to. FUCK. IM NOT SMART ENOUFG FOR THIS SHIT.

I have 3 USB drive that I carry around all the time. Why don't I have a live image in one of them?

I went to sleep.

Next day I download Lubuntu (just to boot and backup some stuff before downloading and reinstalling Manjaro).

When I was burning the ISO to the USB, turns out I actually had a bootable Ubuntu on it the whole time.

I feel so stupid.

Last week I don't remember why, but I did sudo chmod 770 /

Which also broke my system.

Took me 3 hours to realize that this was the problem and make it work.

I love Linux. It keeps things interesting..