This is the result of sudo fdeisk -l: Disk /dev/sde: 300.1 GB, 300069052416 bytes 255 heads, 63 sectors/track, 36481 cylinders, total 586072368 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: 0x894777e0 Device Boot Start End Blocks Id System /dev/sde1 * 63 39070079 19535008+ 83 Linux (This is my Kubuntu 12.04 root directory) /dev/sde2 39070141 586067264 273498562 5 Extended /dev/sde5 39070143 41993909 1461883+ 82 Linux swap / Solaris /dev/sde6 41993973 586067264 272036646 83 Linux (This is my Kubuntu 12.04 home directory) Disk /dev/sdf: 163.9 GB, 163928604672 bytes 255 heads, 63 sectors/track, 19929 cylinders, total 320173056 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: 0x000c8e12 Device Boot Start End Blocks Id System (on this disk i've got my Edubuntu and Backtrack installations) /dev/sdf1 2048 156252047 78125000 83 Linux /dev/sdf2 311789566 320172031 4191233 5 Extended /dev/sdf3 * 156252160 311787519 77767680 83 Linux /dev/sdf5 311789568 320172031 4191232 82 Linux swap / Solaris Partition table entries are not in disk order Disk /dev/sdg: 1000.2 GB, 1000204886016 bytes 255 heads, 63 sectors/track, 121601 cylinders, total 1953525168 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: 0x000486db Device Boot Start End Blocks Id System /dev/sdg1 * 63 1953520064 976760001 83 Linux (this is just my plain storage disk)