CentOS filesystem size expansion?

Question

When I tried to download packages from Windows to my CentOS VM it said I have insufficient space on my filesystem. When I checked it it had only 5.4mb left while I've set the VM space limit to 30GB. I'm new to Linux and don't know what to do. How do I expand the size of my filesystem?

Answer 1

Short story (you do want to read up every step in detail):

• Enlarge Partition / Raid / LVM (in order of "loading")
• Enlarge Filesystem with resize2fs (depending on filesystem)

Resizing in wrong order might corrupt your filesystem or file contents!

Answer 2

Perhaps you have already used up all your space. Do a df -h and see how big your filesystem is.

Answer 3

df -h

will provide you your disk space usage. If you see that /home is full and you have space in /, then try putting some files you don't regurarly use. Note: you will have to cp using sudo because you cannot copy to / with normal permissions OR as root do the following:

cd /; sudo mkdir extra_space ; cd  extra_space ; sudo mv /home/yourUSERNAME/music/*.mp3 .

Explanation: Change directory to /, then with super user credentials, create a new directory called "extra_space". Next go into "extra_space" and move as many as possible. mp3 files to this location from your home directory.