Comment 4 for bug 225485

The backends_ubuntu file wasn't built when I installed the package in hardy.

Is a backend specification necessary for remapping to work? From config-serv.html: "The last part of the Remap-... directive, appended after a semicolon, describes locations to download from. This part is optional if the first part contains only real locations and mandatory if shortcuts are used there." The first part contains only real locations, so I would expect it to download from any of those locations and store the result in uburep. I would only think to specify a backend if I wanted it to only download from one external repository regardless of the actual mirror requested.