I finally got several "successful" installs of 6.1 on my system after many retries. By successful I mean that installation actually completed to the end. However, of the 3 completed installs, all were basically pretty messed up. In the first case, at boot no modules were loaded, and errors were thrown stating an incorrect kernel verions in /boot/System.map. A "uname -r" reported kernel 2.2.5-15 was running. Looking in the /lib/modules directory revealed that all modules were installed under the 2.2.12-20 directory. Modprobe was using the "uname -r" method to determine the module directory and thus was trying to load modules that did not exist. I experimented and copied the /lib/modules/2.2.12-20 directory to /lib/modules/2.2.5-15 and rebooted. MANY errors were the result at boot time, all specifying incorrect versions. Rather than screw around any more, I decided to rebuild. After two more "successful" completions of the install, I came across the errors "VFS error: could not mount root fs" and "could not find initrc.img" resulting in a kernel panic. System info: previously running version 6.0 flawlessly Model: IBM 466DX2/Dp i486 DX2 - 66MHz 32MB Ram 4GB HDD Adaptec AHA-1542 3com 3c509 NE2000 compat.
If this was an upgrade, then lilo is installed in a different place than it was previously and therefore the system is booting an old lilo installation, which is loading an old kernel. I would suggest making sure that lilo is installed to the same location as before the upgrade and then your problems should be resolved.