转,linux fdisk 分区、格式化、挂载!
关于硬盘分区:主分区(包含扩展分区)、逻辑分区,主分区最多有4个(包含扩展分区)。
因此我们在对硬盘分区时最好划分主分区连续,比如说:主分区一、主分区二、扩展分区。
此文章以fdisk工具为例,对一个硬盘划分。
1、fdisk -l 查看系统上的硬盘,找到需要分区的硬盘后比如说:/dev/sdb.
然后,fdisk /dev/sdb
进入该设备。此时出现:
Command (m for help):
查看帮助信息:输入m,看到如下信息
Command action
a toggle a bootable flag
b edit bsd disklabel
c toggle the dos compatibility flag
d delete a partition 注:这是删除一个分区的动作;
l list known partition types 注:l是列出分区类型,以供我们设置相应分区的类型;
m print this menu 注:m 是列出帮助信息;
n add a new partition 注:添加一个分区;
o create a new empty DOS partition table
p print the partition table 注:p列出分区表;
q quit without saving changes 注:不保存退出;
s create a new empty Sun disklabel
t change a partition's system id 注:t 改变分区类型;
u change display/entry units
v verify the partition table
w write table to disk and exit 注:把分区表写入硬盘并退出;
x extra functionality (experts only) 注:扩展应用,专家功能;
具体每个参数的含义,请仔细阅读。常用的就是:d l m p q t w
2、列出当前操作硬盘的分区情况,用p
Command (m for help): p
Disk /dev/sda: 1035 MB, 1035730944 bytes
256 heads, 63 sectors/track, 125 cylinders
Units = cylinders of 16128 * 512 = 8257536 bytes
Device Boot Start End Blocks Id System
/dev/sda1 1 25 201568+ c W95 FAT32 (LBA)
/dev/sda2 26 125 806400 5 Extended
/dev/sda5 26 50 201568+ 83 Linux
/dev/sda6 51 76 200781 83 Linux
3、通过fdisk的d指令来删除一个分区
Command (m for help): p 注:列出分区情况;
Disk /dev/sda: 1035 MB, 1035730944 bytes
256 heads, 63 sectors/track, 125 cylinders
Units = cylinders of 16128 * 512 = 8257536 bytes
Device Boot Start End Blocks Id System
/dev/sda1 1 25 201568+ c W95 FAT32 (LBA)
/dev/sda2 26 125 806400 5 Extended
/dev/sda5 26 50 201568+ 83 Linux
/dev/sda6 51 76 &n