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.
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
ref: http://stackoverflow.com/questions/26305376/resize2fs-bad-magic-number-in-super-block-while-trying-to-open
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