bootstrap partition not found

[Arnaud Kelbert <arnaud@kelbert.com>]

Hello

I am not a newbie in Debian but in MacOS and Powerbook
I've bought a new Powerbook G4 1.5GHz and I've tried to install Debian 
on it. I follow instructions given in lots of sites :

I have partition my Hard drive into 3 partitions with DriveSetup :
-the first for linux
-2nd for Mac OS
-3rd to store data for the 2 OS

After that I continue with installing MacOSX.
Next I tried to install linux with the new net debian installer and I 
run mac-fdisk in a shell.
I delete my linux partition and make some new :
first I create The AppleBootstrap partition, and other partition for / 
; /home ; /var ; /tmp ; /usr

But when the installer tries to install yaboot it failed saying me that 
there is no Bootstrap partition. But this partition exists !!!

If anyone has a solution, I would be happy to read it.
Thanks