resize2fs: Filesystem has unsupported feature(s) while trying to open
[root@stagedb4 ~]# lvextend -L +10G /dev/mapper/vg00-opt
Extending logical volume opt to 59.77 GB
Logical volume opt successfully resized
[root@stagedb4 ~]# resize2fs /dev/mapper/vg00-opt
resize2fs 1.39 (29-May-2006)
resize2fs: Filesystem has unsupported feature(s) while trying to open /dev/mapper/vg00-opt
Couldn't find valid filesystem superblock.
Solution:
Check if the filesystem is ext4
[root@stagedb4 ~]# mount | grep /dev/mapper/vg00-opt
/dev/mapper/vg00-opt on /opt type ext4 (rw)
Use resize4fs for ext4 version.
[root@stagedb4 ~]# resize4fs /dev/mapper/vg00-opt
resize4fs 1.41.12 (17-May-2010)
Filesystem at /dev/mapper/vg00-opt is mounted on /opt; on-line resizing required
old desc_blocks = 4, new_desc_blocks = 4
Performing an on-line resize of /dev/mapper/vg00-opt to 15667200 (4k) blocks.
The filesystem on /dev/mapper/vg00-opt is now 15667200 blocks long.