Flash is full

How can I delete files when the flash is full?

It was working a few seconds ago, I realized there was less than 3MB free, did a dude vacuum-db, it filled the drive, now I can’t delete anything.

Yes, I realize that running the dude on the device was a bad idea now. With such a small network I didn’t expect it to be an issue. The DB was like 20MB and it was only monitoring the AP/Backhauls. Now it is 116MB and the other odds and ends take up all of the space on the flash.