problem multiboot with mini-ppc

[sacarde]

HI,
   I instal ubuntu on my mini-ppc, then I create 2 partitions and I install by 
hand CRUX and GENTOO rispectively

but only ubuntu start OK

after modify yaboot.conf I run: mkofboot and ybin 



this my first yaboot.conf

boot=/dev/hda2 
 device=/pci at f4000000/ata-6 at d/disk at 0: 
 partition=3 
 root=/dev/hda3 
 timeout=50 
 install=/usr/lib/yaboot/yaboot 
 magicboot=/usr/lib/yaboot/ofboot 
 enablecdboot 
 
 image=/boot/vmlinux 
 label=Linux 
 read-only 
 initrd=/boot/initrd.img 
 ## append="quiet splash" 
 
 image=/boot/vmlinux.old 
 label=old 
 read-only 
 initrd=/boot/initrd.img.old 
 ## append="quiet splash" 
 
 
 image=/boot/vmlinux 
 label=crux 
 root=/dev/hda5 
 partition=5 
 read-only 
 ## append="quiet splash" 
 
 
 image=/boot/vmlinux 
 label=gentoo 
 root=/dev/hda7 
 partition=7 
 read-only 
 ## append="quiet splash" 




what I wrong ?

thankyou



sacarde at tiscali.it