centos7合并home分区到根分区/

-----------合并分区----------

umount /home

mkdir /home1

mount  /dev/mapper/centos-home /home1

cd /home1

mv * /home

cd ..


umount /home1

lvremove  /dev/mapper/centos-home

rm -rf /home1

vgs

lvextend -L +491.65G /dev/mapper/centos-root  

----------491.65G,该参数需要看VGS后VFree下面显示的实际可用空间进行配置(失败的则少0.01G即可)。


resize2fs -p /dev/mapper/centos-root

提示:

resize2fs 1.42.9 (28-Dec-2013)
resize2fs: Bad magic number in super-block while trying to open /dev/mapper/centos-root
Couldn't find valid filesystem superblock.

更换成下面即可:

xfs_growfs /dev/centos/root
df -h

vi /etc/fstab  删除home的一行


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