**CentOS 7 调整 home分区 扩大 root分区**

2. 查看分区

`df -h (centos-home`==和==`centos-root`==每人的名字可能不一样==

```
) vgdisplay (
```

==查看空闲磁盘大小）==``

4. 备份home分区文件

```
tar cvf /tmp/home.tar /home
```

6. 卸载/home，如果无法卸载，先终止使用/home文件系统的进程

`umount /home` ==（卸载）==

```

fuser -km /home/
```

==（终止）==``

8. 删除/home所在的lv

```
lvremove /dev/mapper/centos-home
```

10. 扩展/root所在的lv

```
lvextend -L +50G /dev/mapper/centos-root
```

12. 扩展/root文件系统

```
xfs_growfs /dev/mapper/centos-root
```

14. 重新创建home lv

```
lvcreate -L 50G -n /dev/mapper/centos-home
```

16. 创建文件系统

```
mkfs.xfs /dev/mapper/centos-home
```

18. 挂载home

```
mount /dev/mapper/centos-home
```

20. home文件恢复

`tar xvf /tmp/home.tar -C /home/`
 \> 来自 \<[https://www.jianshu.com/p/27c87f390175](https://www.jianshu.com/p/27c87f390175)\>  
 \> 来自 \<[https://www.jianshu.com/p/27c87f390175](https://www.jianshu.com/p/27c87f390175)\>