I have also produced three other guides for the GA-EP45-DS3L
Vanilla Retail 10.5.7 install guide with Chameleon on a separate partition
Using DSDT on the GA-EP45-DS3L where a better audio solution is available.
Vanilla Retail 10.6.1 install with Chameleon on a separate partition
16th February 2010 - 09:24
Thread Status
This thread has been redundant now since the release of Snow Leopard and I consider this thread out of date. Dual booting OS X and Windows 7 on the same HDD is now easy. For more info see this post in my 10.6 thread.
News
2nd October 2009 - 20:43
Gigabyte have released GA-EP45-DS3L BIOS F11b
At last, the beta bios for this mobo is out and includes ACHI v1.20E to bring us up to the same level as most of the other Gigabyte boards. The main benefit is a faster boot time. I have posted (in my 10.6 thread) how to go about the update here. Or as Z4g0r has mentioned you can use the @BIOS utility if you have Windows installed.
12th September 2009 - 04:45
This Dual Boot method has been confirmed as working with Snow Leopard too
Undo_Undo has confirmed it working - see his post here.
Important: The instructions in this guide are for installing 10.5.7. If you want to try it with 10.6 then you are going to have to have an understanding of what pieces of the process to change for Snow Leopard. Follow the instructions here for the dual boot and partition as this guide but use the 10.6 guide for installing Snow Leopard. (Note: Suzuka followed this guide and reported installing Chameleon on to the System partition for it to work for him). The BootCD here won't work for 10.6 so you'll have to use one from the 10.6 guide or build your own USB boot drive. And you are also going to have to use Chameleon v2 RC3 boot file.
Re: 10.5.8 Update. Please see the bottom of this post for instructions for updating.
Introduction
This will take you through installing Mac OS X 10.5 from retail DVD, upgrading to 10.5.7, installing the Chameleon bootloader to the EFI partition and setting it up with all the kexts etc. needed for the GA-EP45-DS3L. You then have the option of installing Windows 7 on to the same hard drive to give you a dual boot system using Chameleon as the bootloader. As we are not installing Windows 7 to the first partition it won't create the System Reserved partition.
Note: This should also work for Windows Vista but I have only tested with Windows 7.
Installing Chameleon to the EFI partition requires using the Terminal to manage the partition. So if you want to change a theme, add/remove kexts, edit the com.apple.Boot.plist etc, you will need to use and have at least a basic understanding of using the Terminal.
There are various guides here on Insanely showing how to install retail Leopard using EFI bootloading. All I have done is put to use the good work of others and pieced together a fresh vanilla installation of retail 10.5.7 for the GA-EP45-DS3L and created an illustrated step by step PDF guide which you can download and follow. So thanks to everyone on this forum and in the OSX86 scene for creating the tools and evolving the installation process so it is now this easy to have a Macintosh on your PC. And I must also thank Arial for showing how to dual boot Windows 7 on the same hard drive in the voodooprojects forum. So all credit to him.
This install leaves the system installed from the retail DVD remains untouched and any extensions/drivers required for this motherboard are added to the Chameleon's /Extra folder. If you want to add drivers etc. directly to the retail install then feel free but don't ask for support here.
Most of the work in this guide involves setting up Chameleon and if you haven't used it before then it might take a little understanding to get your head around it, but once you have, it's easy. And to see the benefits of this install, once completed, I recommend installing the Mac OS X 10.5 Retail DVD on to the backup partition to use for testing future updates etc.. All you need to do is install it, update to 10.5.7 and reboot, selecting it in Chameleon at boot. It just works!.
This guide was made for my system using the following hardware. GA-EP45-DS3L Rev 1 BIOS F10. Intel Core2Duo 7300 2.66Ghz, 4GB DDR 800Mhz, nVidia 8800GT 512MB, 2 x 500GB SATA II Hard Drive, SATA II DVD-RW, USB Keyboard & Mouse. If you have any additional hardware it might be worth unplugging it for now until the system is installed.
Although I have tried to make this guide as simple as possible, it still requires some knowledge of OSX86 and the willingness to research, read and learn. Before posting problems on this thread, please ensure you have read through this thread and completed the install guide PDF.
Requirements
• Your HD's and optical drive must use the SATA interface and make sure BIOS SATA AHCI mode is set to AHCI.
• A purchased retail Mac OS X install DVD (not the restore DVD you get with Apple hardware).
• Windows 7 RC1 for now, or a purchased Windows 7 DVD when available.
• A USB keyboard & Mouse
• Internet connection
• A little patience
Known issues with this install The Mac issues have been carried over from my other install.
• The 3.5mm jack mic input not being recognised.
• Distorted audio when waking from sleep. (This can be rectified after waking from sleep, see here, or by using DSDT).
• A rare occasion of a USB device failing to be recognised. Uplugging & re-plugging the device can fix this.
• Windows 7 will NOT enter sleep when booting from Chameleon v2.
Complimentary thread for building a DSDT option for this install
After completing this guide and you have a fully working system, you can progress to using a DSDT.aml. The benefits of this is better audio without the need for VoodooHDA and it's dependencies, to give one option to enable sleep in 10.5.8 (see bottom of this guide for details), and to fix the CMOS reset bug which will rear it's head in 10.6. I have put together a guide for building a patched DSDT.aml for this mobo. So to keep this thread clean you will find the new thread here.
There are three install methods
1 - If you already have a system up and running and a spare HD
Download the Install Guide PDF and the support files and they will take you through all the steps you need to get installed. Once you have the Mac installation complete, you can then start with the Windows 7 install.
2 - If you are starting from scratch - Boot CD
Download my Chameleon Boot CD iso (the guide PDF is in the disc image). Burn the image to a CD and follow the instructions below. Once you have the Mac installation complete, you can then start with the Windows 7 install.
3 - If you are starting from scratch - Modified OS X disc
If for some reason the Boot CD and any workarounds don't work for you then you can always seek out a modified OS X disc for example, iDeneb or iAtkos. You only need a basic install from these, don't worry about audio, perfect video drivers etc.
Download the Install Guide PDF and the support files from here and use the modified OS X disc to get to disk utility to allow you to partition your hard drive as per the PDF guide then install on the backup partition. When you have a system running, you can then follow the install guide PDF from here to install from the retail OS X DVD on the Macintosh partition with the view to eventually deleting the modified OS X install. Don't ask here where to get a modified OS X disc from, and don't ask here for any support for the modified OS X install.
Boot CD Instructions
Boot from GA-EP45-DS3L CD
1 - Press Enter.
2 - Press F8 to go to boot options.
3 - Eject Boot CD and insert Mac OS X Install DVD.
4 - Press ESC to force Chameleon to rescan drives. (You will see 8 or so EBIOS read errors, that's normal).
5 - When you see 'Mac OS X Install DVD' then press Enter.
Boot from the Mac OS X Install DVD and go to Disk Utility, then follow Step 1 in my install guide PDF to format/partition the hard drive.
6 - Install retail Leopard 10.5 to the Macintosh partition.
(At the end it will say it's failed because we don't have a bootloader yet but we can ignore this and restart).
7 - Once installed, reboot.
8 - Boot from the GA-EP45-DS3L CD again.
9 - Press F8 to go to Chameleon's boot options.
10 - Select the partition you installed retail Leopard 10.5 on to.
(Some people have had a problem here, where my boot CD fails to pick up the newly installed OS X to the Macintosh partition. If this happens you can use the generic boot132 to complete this step. What you need to do is boot from it and when presented with a boot prompt, press ESCAPE, then type 80 for your 1st hard disk. You'll then be presented with a list of partitions. See if your Macintosh partition is in the list, if so, you should be able to boot it from there (So select it now and boot it). When successfully booted in to the retail install (from the Generic Boot132 CD) you'll see the intro video (but you won't have sound). Go to Step 12 follow the instructions to update the system, reboot then try loading again from my Boot CD at step 14. If this doesn't work then use the generic boot132 CD again.
11 - OS X will boot with the intro video (and with sound).
12 - Download & update to 10.5.7 with software update (If you're new to this, I recommend you stick with this for now).
(You can choose 10.5.8 but if you do, be prepared to learn about building a DSDT.aml file for you system to enable sleep).
13 - Reboot for it to install.
14 - Boot from the GA-EP45-DS3L CD again.
15 - Press F8 to go to Chameleon's boot options.
16 - Select partition you installed retail Leopard 10.5 on to.
Note: for me, first time it booted the new 10.5.7 install it failed, but I rebooted the new 10.5.7 by choosing verbose mode from Chameleon's boot menu (after pressing F8 in Chameleon, select the partition you have installed on to, press down arrow, then select Boot Verbose).
17 - Once loaded, open Boot CD from the finder and work through my install guide PDF from step 4 by using everything in 'Steps to follow after OS X is installed' folder.
Files - due to problems with the original files on MediaFire vanishing? I have re-loaded all the files
GA-EP45-DS3L Vanilla EFI Dual Boot Guide PDF v1.0 (4.98MB) Last updated 5th August 2009 - 14:51
Alternate Download Link FileFactory
GA-EP45-DS3L _Vanilla_EFI Dual Boot_Support_Files v1.0 (5.41MB) Last updated 5th August 2009 - 15:11
Alternate Download Link FileFactory
GA-EP45-DS3L EFI Dual Boot CD v1.0 (12MB) Last updated 5th August 2009 - 15:15
Alternate Download Link FileFactory
As this is version 1 of this guide then please, if anybody follows it, report your successes, failures etc. And finally, I only know what I have learnt so far, and if you have any tips, suggestions, better ways of doing things then please share it.
10.5.8 Update.
Go ahead and use Software Update but before you do....
remove IOPCIFamily.kext and IONetworkingFamily.kext from Chameleon's /Extra/Extensions and rebuild Extensions.mkext first.
This is because Apple has updated IOPCIFamily.kext which we used to get Psystar's RealtekR1000.kext working from E/E. When the update is complete and you have rebooted (it will reboot twice), you can add the new IOPCIFamily.kext along with IONetworkingFamily.kext from /SL/E back in to /E/E and then rebuild your Extensions.mkext. This was always going to be an issue where dependencies are added to /E/E.
Note regarding Sleep when using 10.5.8
Apple changed the way the kernel interacts with AppleIntelCPUPowerManagement.kext with 10.5.8 and the kernel now waits for a response from AppleIntelCPUPowerManagement before it puts the system to sleep.
So you have two options.
1 - use a DSDT file and remove the block from Disabler.kext for AppleIntelCPUPowerManagement so it runs freely.
2 - Add SleepEnabler.kext (by pista7) along side Disabler.kext in Chameleon's /Extra/Extensions. SleepEnabler sends the kernel the correct message to allow it to sleep even though AppleIntelCPUPowerManagement is disabled.
Tips
EnzoFX has posted in my 10.6 thread regarding Win7 hanging at shutdown due to an issue with it's system time synchronization being incorrect.
It might come in useful for anyone experiencing a hang at shutdown with Win7.
Many Thanks
EDIT: I have forgotten to mention about rebuilding permissions anywhere. So should you need to rebuild permissions use the following Terminal commands:
sudo chown -R root:wheel nnnn (where nnnn is the directory you want changing)
sudo chmod -R 755 nnnn (where nnnn is the directory you want changing)
This post was last edited by blackosx on 14th October 2009 - 19:27



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