HI,

I am new to Debian.
I recently installed a Debian on a Sun Netra T1 Sparc machine, and
found that I only use 5GB space of its 18GB maximum hard disk size.

Here is the current file partition in the debian system:
dev:~# df -k
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/sda1 5106408 538644 4308372 12% /
tmpfs 257480 0 257480 0% /lib/init/rw
udev 10240 72 10168 1% /dev
tmpfs 257480 0 257480 0% /dev/shm
dev:~#
dev:~# uname -a
Linux dev 2.6.18-6-sparc64 #1 Tue Feb 12 21:51:30 UTC 2008 sparc64 GNU/
Linux
dev:~#

Qeust 1 is:
In Debian, how to find out the extra available space that I can use?

Quest 2:
What can I do to make use the rest of 13GB or 12GB disk space from the
same harddisk?

Thanks
Sam