fdisk command
简单实用的命令,可以查看磁盘信息.(当然也可以使用lsblk /dev/yourdisk)
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whoami@root:/# fdisk -l
它会检测出你的所有磁盘 eg:
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whoami@root:/# fdisk -l
Disk /dev/sda: 1 GB, 1024 bytes
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帮助
使用fdisk /dev/sda 之后,将会输出一堆的提示信息.
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The number of cylinders for this disk is set to 8841.
There is nothin wron with that but this is larer than 10
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在此之后
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Command (m for help): m
Command action
a toggle a bootable flag
b edit bsd disklabel
c toggle the dos compatibility flag
d delete a partition
l list known partition types
m print this menu
n add a new partition
o create a new empty DOS partition table
p print the partition table
q quit without saving changes
s create a new empty Sun disklabel
t change a partition’s system id
u change display/entry units
v verify the partition table
w write table to disk and exit
x extra functionality (experts only)
就是fdisk的命令了
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Command: (m for help): n
Command action
e extended
p primary partition (1-4)
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Partition number (1-4):1
First cylinder (1-8841, default 1): 1
Last cylinder or +size or +sizeM or +sizeK (1-8841, default 8841): +4G
n 表示创建一个分区
e与p 表示扩展分区和主分区,(主分区一般都是4个一下…)
1与+4G表示柱面开始是1,结束是4096….
如果分一个swap分区,则要改变system id(如果使用cfdisk,可以明显的查看,83Linux,84则是Linux swap)
t命令进入修改
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Command (m for help): t
Partition number (1-4): 1
Hex code (type L to list codes): 82
最好保存就用w,如果不放心,可以使用p查看一下…
mount 挂载分区
mkfs.extx 格式化分区
mount /dev/sdayourdisknum /mnt 挂载/分区(其他分区也一样)
mkdir /mnt/home,mount /dev/sdayourdisknum /mnt/home 挂载/home 分区
mkswap /dev/sdayourdisknum 交换分区使用
swapon /dev/sdayourdisknum 激活交换分区