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resize2fs: Bad magic number in super-block while trying to open

I am trying to resize a logical volume on CentOS7 but am running into the following error:

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(找不到有效的文件系统超级块).

solution:

After a bit of trial and error… as mentioned in the possible answers, it turned out to require xfs_growfs rather than resize2fs.

 

xfs_growfs  /dev/centos/root
df -h
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