I've just installed Zenwalk 6.4 from the live CD on the third partition of my drive and made an entry for it in Fedora's grub. vmlinuz starts ok, but when we get to using initrd I get the message
mounting /dev/hda3 on /mnt failed. No such file or directory.
This is my second attempt on Zenwalk this year; at least this time it gave an error message
Solved all by myself!
Principally because it was my fault

In adjusting grub, I'd left the hd designation used by the last distro instead of the sd used by Zenwalk.
Nevertheless, I'm still left with an unremovable /home/one directory and a clock that's an hour adrift.