问题
I have a 200GB EBS volume and am trying to increase the space available. I followed the instructions on: 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 that snapshot.
Everything is peachy, 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's going on there, but my new volume still only shows 200GB, when in fact it's an 800GB volume.
回答1:
The OP stated that he was using the XFS filesystem.
The tool resize2fs works with ext2, ext3 and ext4 only.
There's a similar tool available for the XFS filesytem called xfs_growfs. You'll most likely have to install it first
sudo yum install xfsprogs.x86_64 --assumeyes
then mount your filesystem
sudo mount -t xfs /dev/sdf /vol
now you can extend the filesystem
sudo xfs_growfs /vol
df -h should now show more available space
I hope this helped :)
Tip: ext4 filesystem is the recommended filesystem for EBS volumes ( for the future )
来源：https://stackoverflow.com/questions/13362910/trying-to-resize2fs-eb-volume-fails