ubuntu@ubuntu:~$ sudo fdisk -l
Disk /dev/sda: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders, total 976773168 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: 0x00071bbc
Device Boot Start End Blocks Id System
/dev/sda1 2048 273436671 136717312 83 Linux
/dev/sda2 * 273436672 274413567 488448 83 Linux
/dev/sda3 274413568 290414591 8000512 82 Linux swap / Solaris
/dev/sda4 290416638 976770155 343176759 5 Extended
/dev/sda5 290416640 976770155 343176758 83 Linux
Disk /dev/sdb: 15.6 GB, 15606349824 bytes
116 heads, 52 sectors/track, 5053 cylinders, total 30481152 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: 0xc3072e18
Device Boot Start End Blocks Id System
/dev/sdb1 * 8064 30481151 15236544 c W95 FAT32 (LBA)
ubuntu@ubuntu:~$ sudo mount -v -t ext4 -o remount,rw /dev/sda5 /mnt
mount: /mnt not mounted or bad option
ubuntu@ubuntu:~$