Resizing an EBS volume

If you run into size limitations with an EBS (Elastic block storage) volume attached to your EC2 instance it just takes a few minutes to expand the storage space.

• Unmount the small volume (assumed to be /dev/sda here).

unmount /dev/sda

• Detach the unmounted partition from the instance.
• Take a snapshot of the detached volume.
• Recreate an EBS partition from the snapshot.
• Attach the EBS disk to your instance.
• Resize and remount the larger volume with:

e2fsck -f /dev/sda
resize2fs -p /dev/sda
e2fsck -f /dev/sda
tune2fs -l /dev/sda
mount /dev/sda /somewhere