lvm逻辑卷扩容报错解决

报错：

[root@centos21 space]# resize2fs /dev/centos/root 
resize2fs 1.42.9 (28-Dec-2013)
resize2fs: Bad magic number in super-block while trying to open /dev/centos/root
Couldn't find valid filesystem superblock.

解决办法：

xfs文件系统需要使用xfs命令

[root@centos21 space]# xfs
xfs_admin      xfsdump        xfs_growfs     xfs_logprint   xfs_ncheck     xfs_rtcp
xfs_bmap       xfs_estimate   xfs_info       xfs_mdrestore  xfs_quota      
xfs_copy       xfs_freeze     xfsinvutil     xfs_metadump   xfs_repair     
xfs_db         xfs_fsr        xfs_io         xfs_mkfile     xfsrestore   

[root@centos21 space]# xfs_growfs /dev/mapper/centos-root