Comment 2 for bug 404451

The jfs.ko module is built for Karmic. The problem is that it may not be in the initramfs (initrd) where it belongs. Please verify that /lib/modules has the module and also check your default initrd to see if it is there as well. If it is in both places, see if you can get a console trace and attach it to the bug. BTW, the initrd is a gzip compressed cpio archive. Uncompress it and and look in the TOC.