linux的磁盘挂载',Linux 磁盘挂载

格式化磁盘

在 CentOS 7.0 以后 fdisk 也支持了大磁盘的格式话。本文章是再 CentOS 7.4 上进行的。

使用 fdisk /dev/sdb 根据帮助提示分区,这里是把 /dev/sdb 分成一个区.

[root@localhost ~]# fdisk /dev/sdb

Device contains neither a valid DOS partition table, nor Sun, SGI or OSF disklabel

Building a new DOS disklabel with disk identifier 0x0adfd119.

Changes will remain in memory only, until you decide to write them.

After that, of course, the previous content won't be recoverable.

Warning: invalid flag 0x0000 of partition table 4 will be corrected by w(rite)

WARNING: DOS-compatible mode is deprecated. It's strongly recommended to

switch off the mode (command 'c') and change display units to

sectors (command 'u').

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)

Command (m for help): n

Command action

e extended

p primary partition (1-4)

p

Partition number (1-4): 1

First cylinder (1-6527, default 1):

Using default value 1

Last cylinder, +cylinders or +size{K,M,G} (1-6527, default 6527):

Using default value 6527

Command (m for help): p

Disk /dev/sdb: 53.7 GB, 3000034656256 bytes

255 heads, 63 sectors/track, 6527 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: 0x69D07AFC-584D-4926-81B8-8DEF8087445F

Device Boot Start End Blocks Id System

/dev/sdb1 1 6527 5859442688 83 Linux

Command (m for help): w

The partition table has been altered!

Calling ioctl() to re-read partition table.

Syncing disks.