虚拟机扩容
看到好多网上文章增加linux系统扩容很多坑,今天本人自己重新整理一下,把全部操作过程发出来给大家分享;
1:查看磁盘编号
ls /dev/sd*
![](https://img2018.cnblogs.com/blog/1507260/201810/1507260-20181030131336463-10856909.png)
2、创建pv
pvcreate /dev/sdc1
![](https://img2018.cnblogs.com/blog/1507260/201810/1507260-20181030131524194-22539110.png)
3.把pv加入vg中,相当于扩充vg的大小
先使用vgs查看vg组
#vgs
![](https://img2018.cnblogs.com/blog/1507260/201810/1507260-20181030131645044-1370274768.png)
扩展vg,使用vgextend命令
vgextend centos /dev/sdc1
4.成功把vg卷扩展了,在用vgs查看一下
lvs
![](https://img2018.cnblogs.com/blog/1507260/201810/1507260-20181030132021240-1494842984.png)
5.给系统lv增加扩展(我这里增加400G)
6.重新读取系统大小
xfs_growfs /dev/mapper/centos-root
![](https://img2018.cnblogs.com/blog/1507260/201810/1507260-20181030132210636-607663678.png)
df -hl
![](https://img2018.cnblogs.com/blog/1507260/201810/1507260-20181030132237062-1169958325.png)
下面是增加系统扩展全过程: