You should never have to work with the root user account on Linux, especially on a desktop installation. There can be occasions when you need to use root on a server. If you must use root, do so with ...
The btrfsck command is a filesystem-check command like fsck, but it works with the btrfs file system. First a little bit about btrfs. As the name implies, btrfs uses a B-tree data structure that is ...