Problem with yabootconfig

[Soetji Anto]

I tried to install FC3 along with OSX on my iBook G3 following instructions on
http://www.bytebot.net/geekdocs/ibook/fedorappc.html. I broke out into a shell with
Ctrl+Alt+Fn+F2 at the end of the CD installation when it asked for reboot.

I didn't find /etc/yaboot.conf instead I found it at /mnt/sysimages/etc/yaboot.conf.
The file has already:
initrd=/boot/initrd-2.6.9-1.667.img

When I run:
yabootconfig -r /dev/hda11 -b /dev/hda13

I got the following error:
id: unknown group name: 0
/mnt/sysimage/sbin/yabootconfig: line 455: [: != unary operator expected
yabootconfig: / does not appear to be a valid root filesystem

Please help.

Thanks,
Soetji