Our camera DVR is not recording anymore. The disk is full and the vendor has not been helpful in freeing up space. I am trying to figure out why the primary disk is full. I've tried accessing it through cd /mnt/dev/sda4, but as you may have guessed, that did not work. Also, there is no GUI enabled for this device. When trying to startx, I get "X: user not authorized to run the X server, aborting."
How can I get access to the /dev/sda4 directory (or device) to see what's eating my space? And after doing so, how can I pull up directory/file space without having to wait so long for the du command to compute?
Filesystem Size Used Avail Use% Mounted on
/dev/sda1 65G 20G 42G 32% /
udev 7.9G 12K 7.9G 1% /dev
tmpfs 3.2G 300K 3.2G 1% /run
none 5.0M 0 5.0M 0% /run/lock
none 7.9G 84K 7.9G 1% /run/shm
/dev/sda3 26G 5.0G 20G 21% /storage
tmpfs 3.0M 176K 2.9M 6% /tmp/tmpfs
/dev/sdb1 7.5G 5.5G 2.1G 74% /media/cfrestore
/dev/sda4 3.5T 3.4T 0 100% /mnt
/dev/sdc 3.6T 309M 3.4T 1% /media/4fc55b9f-e2cd-4c88-a1d0-5a94ac81dce4
DISTRIB_DESCRIPTION="Ubuntu 12.04.1 LTS"
Thanks for the help.