This looks to be because the netbook image doesn't have /etc/default- release or a preseeded value for the debconf suite, resulting in choose- mirror failing, resulting in source/apt-setup/generators/50mirror.ubuntu failing to write out the default sources.list.
-- Software sources not selected https://bugs.launchpad.net/bugs/656037 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs