Grub and efi

[Gauvenator]

I currently have a few linuxes install on one hardrive, and windows installed on a separate drive. I am booting all operating systems with grub. I am planning to install Leopard 10.5.5 on the windows hardrive, but before I do I need some information. The only hardrive plugged in during installation will be the windows drive.

 

1) Will the mbr of the hardrive osx is installed on be overwritten when osx installs?

 

2) Booting OSX with grub.

I've been looking around on the web, and the way I understand I need to go about a dual boot is obtaining a file to put in my /boot on my linux partition to use grub to boot osx with by adding an entry in the menu.lst. The threads seemed old so I need some confirmation.

- I need a link to the file, and information on the entry I need to create in the menu.lst.

 

Any help given is appreciated and let me know if more information is needed.

[Gauvenator]

Ok so I went ahead and installed it and I realized that all I need to do is find a way for Grub to pass control to the darwin bootloader on the other hardrive. Anyone know how to do this?

[gprince]

Hi,

When I did this, I just had to copy the directory i386 wich is on your mac partition at /usr/standalone/

place it in your linux boot folder, and add only to the menu.lst :

title OsX

chainloader /boot/i386/chain0

And it was ok.

 

 

but now I installed an EFI v9 bootloader with iAtkos 10.5.5 and I checked the contain of /usr/standalone/i386 and there is only Firmware.scap and boot.efi.

So if you are in this case, I don't know what to add to the grub

[Gauvenator]

Ok so I made this entry in grub:

title   osx86
root   (hd1,0)
makeactive
chainloader +1

What it does is loads the darwin bootloader when I select that entry at boot.

 

@gprince

Thanks for the info! I imagine if I reinstall windows and overwrite the darwin bootloader I will have to do what you have suggested.