make-dropbox-volume.bash

#!/usr/bin/bash
set -e
# Stop dropbox first !
dd if=/dev/zero of=dropbox-volume bs=1M count=3072
mkfs.ext4 dropbox-volume
sudo mount  dropbox-volume Dropbox2
sudo chown $USER Dropbox2
sudo chown $USER Dropbox2/lost+found
rsync --partial --progress --recursive --remove-source-files Dropbox/ Dropbox2/
mv Dropbox Dropbox.old
sudo umount Dropbox2
mv Dropbox2/ Dropbox/
# Now we can mount the volume on the final destination.
sudo mount dropbox-volume Dropbox
# you can start dropbox now. fstab for automatic mounting is not covered