Update from Sync Service

Linux/CentOS/CentOS调整分区大小.md

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+**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)>