You need to install the linux-386 package so that updates work correctly. Mainly, the linux-restricted-modules package(s) need to get installed via the metapackage.
** Changed in: linux-meta (Ubuntu) Status: Unconfirmed => Rejected -- madwifi directory missing from /lib/modules/2.6.15-25-386 https://launchpad.net/bugs/51375 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs