Trying to save volume resize2fs EB

Question

I have 200 GB EBS and am trying to increase the available space. I followed the instructions below: http://www.hellersoftware.com/2012/resize-ebs-volume-attached-to-amazon-web-services-ec2-instance/ and managed to create a snapshot and create a new EBS based on this instant snapshot.

Everything is smooth except when I do:

# resize2fs /dev/sdf

I get

 resize2fs 1.40.8 (13-Mar-2008) resize2fs: Bad magic number in super-block while trying to open /dev/sdf Couldn't find valid filesystem superblock. 

Not sure what is going on there, but my new volume still shows only 200 GB, when in fact it is 800 GB.

Answer 1

OP said it uses the XFS file system. The resize2fs tool only works with ext2, ext3 and ext4.

There is the same tool available for the XFS filesytem file called xfs_growfs. Most likely, you will have to install it first.

 sudo yum install xfsprogs.x86_64 --assumeyes 

then mount your file system

 sudo mount -t xfs /dev/sdf /vol 

you can now expand the file system

 sudo xfs_growfs /vol 

df -h should now show more available space

Hope this helps :)

Tip: the ext4 file system is the recommended file system for EBS volumes (for the future)