I'm really new to linux and servers. I don't really understand the talk in other threads and some say you cannot do it while ubuntu is online while some say you can.
So can someone explain the process to me like I'm 5?
Filesystem Type Size Used Avail Use% Mounted on /dev/root ext4 20G 2.4G 16G 13% / devtmpfs devtmpfs 16G 4.0K 16G 1% /dev none tmpfs 4.0K 0 4.0K 0% /sys/fs/cgroup none tmpfs 3.2G 636K 3.2G 1% /run none tmpfs 5.0M 0 5.0M 0% /run/lock none tmpfs 16G 24K 16G 1% /run/shm none tmpfs 100M 0 100M 0% /run/user /dev/md2 ext4 91G 56G 31G 65% /home
I want to allocate some space from root to md2 (~15G)
EDIT/Note: I do not have physical access to the server and I'm running it command-line with PuTTy