问题描述:根目录空间占用率100% 首先用传统resize2fs方式调整分区: resize2fs -p /dev/mapper/centos-home 50Gresize2fs 1.42.9 (28-Dec-2013)resize2fs: Bad magic number in super-block while trying to open /dev/mapper/centos-homeCouldn't find valid filesystem superblock. 报错原因是因为文件系