Grub configuration for quad boot

[biohare]

I have a notebook, in the internal hard drive there is installed vista, in the extenal i have installed xp, leo4all, and last linux. Grub have find vista, xp, and linux but not osx. All three os start normaly, now I try to insert osx under grub. I have read some topic and undestand this:

 

title OSX

hd (1,7) <---- this is in my case

chainloader +1 (if it dosen't work use "/etc/chain0")

 

ok, at this point when i try to start grub tell me "error 17"

in the internet manual of grub i hare read this:

17 : Cannot mount selected partition This error is returned if the partition requested exists, but the filesystem type cannot be recognized by GRUB.

 

 

 

Now what I have to do?

 

Thanks to all, and sorry for my poor english

[wmarsh]

I have a notebook, in the internal hard drive there is installed vista, in the extenal i have installed xp, leo4all, and last linux. Grub have find vista, xp, and linux but not osx. All three os start normaly, now I try to insert osx under grub. I have read some topic and undestand this:

 

title OSX

hd (1,7) <---- this is in my case

chainloader +1 (if it dosen't work use "/etc/chain0")

 

ok, at this point when i try to start grub tell me "error 17"

in the internet manual of grub i hare read this:

17 : Cannot mount selected partition This error is returned if the partition requested exists, but the filesystem type cannot be recognized by GRUB.

Now what I have to do?

 

Thanks to all, and sorry for my poor english

Boot OS X like a Linux kernel.

http://forum.insanelymac.com/index.php?s=&...st&p=606752