I think I've found a workaround for this. After you mount another partition or an ISO to /cdrom, get to the installer menu and choose "load installer components from cd". Install the machinery for detecting and loading ISOs. Then unmount your /cdrom (and whatever other partition you may have mounted) and let the installer detect and mount the ISO. The release codename will be correctly determined and you will be able to install the base system.
See also http://ubuntuforums.org/showthread.php?p=2942322#post2942322 -- [7.10] [xubuntu] Install fails "Failed to determine codename for the release" https://bugs.launchpad.net/bugs/122402 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
