We just upgraded the licence on a Google hosted VM. This of course means backing up, removing, re-installing, and feeding the backup back in. The only way to feed back in the backup was to re-upload it from our office, which took over half an hour (our local broadband isn't all that!) It would be useful if the restore-backup (during install) allowed us to specify one or more of - a URL (e.g. a Drop-box link) - Google Drive location (though I appreaciate going through teh approval process for a single file might be tedious) - a location ON the VM's local drive, we could easily have pushed the file back to /tmp, for example, but there was no way to tell the restore dialog to look there.