I’ve heard many people talk about backups via dump and restore. I’ve never really tried it, although it looks like I should have been using it all along.

I am rebuilding my firewall, which is based on a WRAP 1C-2 [sbc]{tag/sbc}. I want to use two such boxes, one to connect to my two ISPs (both cheap) and the other to create a DMZ network.

I just finished building one of them (similar as the steps in [this article]{sbc-bootstrap-with-debian}). Now I want to clone the image, because the systems will be almost identical. So I stick in the CF card into my card reader, and run