Can no longer boot into Mac OS

[Thomas Carlson <tcarls@earthlink.net>]

I have had some experience with Yellow Dog Linux but wanted to try 
Debian GNU/Linux 3.0 on my old Powermac 9500.  Tried using BootX and 
the same partitioning scheme that I use with Yellow Dog.  In the 
installation process, however, I managed to set things up so that the 
machine will only will boot from the root partition.  Tried disabling 
the system by deleting /boot/vmlinux so that I could boot from an 
installation floppy or cd and now the machine won't boot at all.  What 
do I do to get back to square one so I can boot into Mac OS again?

Tom