fdisk -lu
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 / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk identifier: 0xb73889b3
Device Boot Start End Blocks Id System
/dev/sda1 933797888 974821375 20511744 83 Linux
Disk /dev/sdb: 32.0 GB, 32017047552 bytes
116 heads, 19 sectors/track, 28372 cylinders, total 62533296 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: 0x67186f44
Device Boot Start End Blocks Id System
/dev/sdb1 * 2048 206847 102400 83 Linux
Disk /dev/sdc: 4004 MB, 4004511744 bytes
116 heads, 51 sectors/track, 1322 cylinders, total 7821312 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: 0x37b8f72c
Device Boot Start End Blocks Id System
/dev/sdc1 * 32 7821311 3910640 b W95 FAT32
ls /dev/mapper
control