linux磁盘扩容

查看磁盘分区

前提是有多余的数据盘或者存储供扩容用

fdisk -l

磁盘分区

fdisk /dev/sdb --sdb是自己添加磁盘或者利用所给数据盘的分区名称

[root@portal2 ~]# fdisk /dev/sdb

Welcome to fdisk (util-linux 2.23.2).

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

Be careful before using the write command.

Device does not contain a recognized partition table

Building a new DOS disklabel with disk identifier 0x0da33248.

Command (m for help): n

Partition type:

p primary (0 primary, 0 extended, 4 free)

e extended

Select (default p): p

Partition number (1-4, default 1):

First sector (2048-83886079, default 2048):

Using default value 2048