[root@
zhjj
~]# fdisk /dev/sda
The number of cylinders for this disk is set to 9726.
There is nothing wrong with that, but this is larger than 1024,
and could in certain setups cause problems with:
1) software that runs at boot time (e.g., old versions of LILO)
2) booting and partitioning software from other OSs
(e.g., DOS FDISK, OS/2 FDISK)
Command (m for help): p #查看分区
Disk /dev/sda: 80.0 GB, 80000000000 bytes
255 heads, 63 sectors/track, 9726 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/sda1 * 1 13 104391 83 Linux
/dev/sda2 14 3837 30716280 8e Linux LVM
/dev/sda3 3838 4098 2096482+ 82 Linux swap / Solaris
/dev/sda4 4099 9726 45206910 5 Extended
/dev/sda5 4099 4160 497983+ 83 Linux
/dev/sda6 4161 4285 1004031 8e Linux LVM
/dev/sda7 4286 4287 16033+ 83 Linux
/dev/sda8 4288 4350 506016 fd Linux raid autodetect
/dev/sda9 4351 4413 506016 fd Linux raid autodetect
Command (m for help): n #创建分区
First cylinder (4414-9726, default 4414):
Using default value 4414
Last cylinder or +size or +sizeM or +sizeK (4414-9726, default 9726): +80M #指定大小
Command (m for help): t #修改分区类型
Partition number (1-10): 10 #选择分区
Hex code (type L to list codes): 8e #分区类型名称
Changed system type of partition 10 to 8e (Linux LVM)
Command (m for help): w #保存退出
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.
Syncing disks.
[root@
zhjj
~]# partprobe #同步分区表
如果修改后出现开机无法正常启动,需要进入光盘引导进行系统修复。