On Mon, 2010-05-03 at 13:40 -0400, Ryan Wagoner wrote: Replying to you off list because this is a topic for the fedora devel list. > Shouldn't it see the correct architecture inside of mock? I thought > that was the point of mock so I could build both i386 and x86_64 > versions on the same system. Try this: If using mock version older than 0.8.8 or on a system with python 2.4, and building i386 packages on x86_64, prepend setarch i386 to the mock command line: setarch i386 mock -r <configfile> --rebuild package-1.2-3.src.rpm [1] If I were you I would not depend on using mock. I have had erronious things hapen with builds at different times. I still resort to the old tried and true Self Hosting Building. I'm not saying mock is a bad tool of choice. It is good at making chroot installs to check packages though. Having said that the above does not work try the build on pure i386 on a self hosting machine. John [1] http://fedoraproject.org/wiki/Extras/MockTricks