I decided to expand the partition for "/" but I've encountered an issue.
I'm using GParted and it won't let me unmount it or modify it. I tried unmounting with the terminal using sudo umount /dev/sda1 but it gives me the following message: "device is busy.(In some cases useful info about processes that use the device is found by lsof(8) or fuser(1))"
Any ideas on how to solve it?
