General Mac OS X Discussion General Apple and Mac OS X Discussion
| ||Thread Tools||Display Modes|
Join Date: Feb 2009
Re: Install XP in EFI partition? - 05-01-2009, 08:07 PM
From my limited understanding, using the GUID partition scheme, there's a "hidden" 200MB that's being referred to as the EFI partition in the guides. That's one of the reasons DellEFI needs Mac OS X to boot from the second (or first seen) partition.
If you follow the guide here, people have gotten Windows XP to run in the first partition (expanded to the needed size) and Mac OS X in the second partition using the MBR partition scheme. You will need to edit the Mac OS X installer DVD, though, or use clone a working install as described in the guide.
DellEFI 1.1 Final doesn't use the 200MB partition and some even shrink it down to the lowest size possible. I think the Darwin booter is just looking for the second partition for it to boot Mac OS X properly.
Join Date: Jan 2009
Re: Install XP in EFI partition? - 05-01-2009, 10:08 PM
Join Date: Feb 2009
Location: Los Angeles
Re: Install XP in EFI partition? - 05-01-2009, 10:15 PM
The EFI partition is part of the EFI spec. It can be used for bootloaders, drivers, system utilities, anything that you need before the OS loads. OS X expects it to be there, though Apple doesn't use it for anything. The bootloader thus expects to find OS X on the second partition.
The now-obsolete Type11 method stored the contents of /Extra in the EFI partition. DellEFI changed that, because it's easier to keep all the files on one partition and no OS X update is going to touch /Extra anyway. So if you're running DellEFI, you can do whatever you want with the EFI partition, as long as your Mac root partition remains the second one in the GPT.
NetbookInstaller 0.8.3 | USB Legacy Mode off | No camera
Join Date: Mar 2009
Re: Install XP in EFI partition? - 05-01-2009, 10:55 PM
mechdrew, yes I am aware that the OSX partition can be cloned to achieve a dual boot, thank you. Indeed, thank you for your tremendous efforts to improve the OS X experience on the Mini 9.
« Wrong time when XP boots after OSX booted previously. | Can't seem to turn internal BT on and off? »
Copyright © 2008-2016 MyDellMini.com.