> The release notes didn't say there were any problems going > from 2.2 to 2.4. What did I forget to do? If you modified /etc/lilo.conf to add the new kernel, did you remember to type "lilo" before rebooting? Not doing this will lock it up for sure. The bootdisk-HOWTO tells you what various LILO error codes (ie, "L" or "LI") mean and how to fix them: http://www.tldp.org/HOWTO/Bootdisk-HOWTO/a1483.html