1. 查看分区情况
fdisk -l /dev/sda
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: 0xb850db78
Device Boot Start End Blocks Id System
/dev/sda1 * 2048 133371629 66684791 7 HPFS/NTFS/exFAT
/dev/sda2 133371904 523997183 195312640 83 Linux
/dev/sda3 523997184 527902719 1952768 83 Linux
/dev/sda4 527902720 976771071 224434176 83 Linux
2. 创建分区
Command (m for help): n
Partition type:
p primary (0 primary, 0 extended, 4 free)
e extended
Select (default p): p
Partition number (1-4, default 1):
Using default value 1
First sector (2048-1172123567, default 2048):
Using default value 2048
Last sector, +sectors or +size{K,M,G} (2048-1172123567, default 1172123567): +100G
Partition 1 of type Linux and of size 100 GiB is set
3. 删除分区
Command (m for help): p
Disk /dev/sdc: 600.1 GB, 600127266816 bytes
128 heads, 32 sectors/track, 286162 cylinders, total 1172123568 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: 0xec3607d6
Device Boot Start End Blocks Id System
/dev/sdc1 2048 209717247 104857600 83 Linux
/dev/sdc3 209717248 419432447 104857600 83 Linux
Command (m for help): d
Partition number (1-4): 3
Partition 3 is deleted
4. 写入分区表
Command (m for help): w
The partition table has been altered!
Calling ioctl() to re-read partition table.
Syncing disks.
5. 创建文件系统
mkfs.ext4 /dev/sdc1
mke2fs 1.43-WIP (21-Jan-2013)
Filesystem label=
OS type: Linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
Stride=0 blocks, Stripe width=0 blocks
6553600 inodes, 26214400 blocks
1310720 blocks (5.00%) reserved for the super user
First data block=0
Maximum filesystem blocks=4294967296
800 block groups
32768 blocks per group, 32768 fragments per group
8192 inodes per group
Superblock backups stored on blocks:
32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208,
4096000, 7962624, 11239424, 20480000, 23887872
Allocating group tables: done
Writing inode tables: done
Creating journal (32768 blocks): done
Writing superblocks and filesystem accounting information: done