how do you do root terminal? I misunderstood.
Open a terminal window and type 'su' and then enter your root password. At the prompt enter fdisk -l (this is fdisk space - lower case L) For example:
[dwmoar@laptop ~]$ su
Password:
[root@laptop dwmoar]# fdisk -l
Disk /dev/sda: 31.5 GB, 31487999488 bytes
255 heads, 63 sectors/track, 3828 cylinders, total 61499999 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: 0x00000000
Device Boot Start End Blocks Id System
/dev/sda1 * 63 30716279 15358108+ 83 Linux
/dev/sda2 30716280 61496819 15390270 5 Extended
/dev/sda5 30716343 34989569 2136613+ 82 Linux swap / Solaris
/dev/sda6 34989633 61496819 13253593+ 83 Linux
[root@laptop dwmoar]#