fdisk -l

Disk /dev/sda: 320.1 GB, 320072933376 bytes
255 heads, 63 sectors/track, 38913 cylinders, total 625142448 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x90909090

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *          63      417689      208813+  83  Linux
/dev/sda2          417690      947834      265072+  82  Linux swap / Solaris
/dev/sda3          947835    21430709    10241437+  83  Linux
/dev/sda4        21430710   625137344   301853317+  83  Linux

df -h

Filesystem      Size  Used Avail Use% Mounted on
rootfs          9.8G  7.4G  2.4G  76% /
udev             10M     0   10M   0% /dev
/run             10M  304K  9.8M   3% /run
/dev/sda3       9.8G  7.4G  2.4G  76% /
shm             1.9G  136K  1.9G   1% /dev/shm
tmpfs           1.9G  252K  1.9G   1% /tmp
/dev/sda1       198M   15M  174M   8% /boot
/dev/sda4       288G  3.5G  285G   2% /home
/dev/sdb1        30G  2.7G   28G   9% /media/music
/dev/sdc4       142G   23G  119G  16% /mnt/old
/dev/sdc3       7.4G  7.4G   17M 100% /mnt/oldroot