v   verify the partition table

   w   write table to disk and exit

   x   extra functionality (experts only)

Command (m for help): n

First cylinder (2044-2611, default 2044):

Using default value 2044

Last cylinder, +cylinders or +size{K,M,G} (2044-2611, default 2611): +50M

Command (m for help): p

Disk /dev/sda: 21.5 GB, 21474836480 bytes

255 heads, 63 sectors/track, 2610 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

Sector size (logical/physical): 512 bytes / 512 bytes

I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk identifier: 0x0003458d

   Device Boot      Start         End      Blocks   Id  System

/dev/sda1   *           1        1275    10240000   83  Linux

/dev/sda2            1275        1658     3072000   83  Linux

/dev/sda3            1658        1913     2048000   83  Linux

/dev/sda4            1913        2611     5610496    5  Extended

/dev/sda5            1913        2044     1048576   82  Linux swap / Solaris

/dev/sda6            2044        2050       54945+  83  Linux

Command (m for help): w

The partition table has been altered!

Calling ioctl() to re-read partition table.

WARNING: Re-reading the partition table failed with error 16: Device or resource busy.

The kernel still uses the old table. The new table will be used at

the next reboot or after you run partprobe(8) or kpartx(8)

Syncing disks.

[root@honghaitao ~]# partprobe

二、分区加密

1、对新分区进行加密，并设置密码：

 [root@honghaitao ~]# cryptsetup.html' target='_blank'>setup luksFormat /dev/sda6