fatal error -- couldn't initialize XFS library

admin

xfs_repair: /dev/mapper/centos-root contains a mounted filesystem
$ a- b' H% K( K+ dUnmount or use the dangerous (-d) option to repair a read-only mounted filesystem
8 {8 \! O! X8 V2 j8 t; y1 O
4 [1 W) }) t1 P+ }6 wfatal error -- couldn't initialize XFS library

admin

需要umount /dev/mapper/centos-root 目录后，在执行命令即可。