Resolved OS X Yosemite on Unsupported Macs [Guide]

[atvusr]

 

[TMRJIJ]

Can i help you beta testing? I have a Macbook 4.1 with GMAX3100. Naturally i have other machines running PB3 a retina 13" and a Mac Pro. Contact me via PM I will give you my contacts.

I don't have perfectly working patching instructions so I recommend trying the ones I provided above for Mavericks but make sure you add another modified Basesystem.dmg and the hidden base system.c. . . . file in the root of your USB. If you have a external drive, you can try installing it from your supported Macs and then delete the platformsupport.plist so you will be able to boot from it on the X3100 model.

 

[ikir]

SO i can try to install Yosemite from my Mac pro, then delete platformsupport.plist to be able to boot. Then i can add GMAx3100 kext right?

 

[ikir]

@TMRJIJ

Are you behind MacPostFactor? I see it in your profile, are you helping Wayne Wong? https://twitter.com/Wayne_819

 

[atvusr]

@TMRJIJ
Are you behind MacPostFactor?

See the post here.

 

[jonobin]

anyone has tried yosemite with mavericks kexts?
how is it working?

 

[TMRJIJ]

Graphics Acceleration

Can someone get the OS X Lion OpenGL files so we can look at this graphics acceleration issue with the WS crash?

 

[jonobin]

Can someone get the OS X Lion OpenGL files so we can look at this graphics acceleration issue with the WS crash?

tell me the directory, I can send them to you

 

[atvusr]

tell me the directory, I can send them to you

I guess it's the 'OpenGL.framework' folder in '/System/Library/Frameworks/'.

Unfortunately the 10.7.5 Combo Update contains not all 'OpenGL.framework' files compared to a installed Lion.

Maybe the 10.7.5 Combo Update is anyhow useful if a other file is needed (it's in the Payload file, approx. 4.27 GB unzipped). See this Guide how to extract the files.

10.7.5 Combo Update: http://support.apple.com/kb/DL1582 .

 

[jonobin]

I guess it's the 'OpenGL.framework' folder in '/System/Library/Frameworks/'.

Unfortunately the 10.7.5 Combo Update contains not all 'OpenGL.framework' files compared to a installed Lion.

Maybe the 10.7.5 Combo Update is anyhow useful if a other file is needed (it's in the Payload file, approx. 4.27 GB unzipped). See this Guide how to extract the files.

10.7.5 Combo Update: http://support.apple.com/kb/DL1582 .

I've a full lion installation, i'll upload the opengl and opencl frameworks and then I share with you the links

 

[jonobin]

OpenGL Lion

OpenCL Lion


here them are

 

[atvusr]

See the Posts #1 and #2 for a updated Guide for the creating of a patched OS X 10.10 Yosemite Installer for unsupported older Macs.

 

[jonobin]

all macs with gma x3100 are 64bit boot.efi capable

 

[ikir]

If someone is interested in testing, here a small Guide for Yosemite on older Macs:


- get the Yosemite PB3 Installer from the App-Store
- use a USB-Flashdrive or HDD with GUID-Partition and Mac OS Extended (Journaled) Filesystem
- restore the BaseSystem.dmg with Disk Utility
- replace the Alias in /System/Installation/ with the Packages folder from InstallESD.dmg
- add the Board-ID to /System/Installation/Packages/InstallableMachines.plist
- add the Board-ID and the Mac-Model to /System/Library/CoreServices/PlatformSupport.plist
- add the Board-ID to /System/Installation/Packages/OSInstall.mpkg
- copy BaseSystem.dmg and BaseSystem.chunklist into the root folder of the USB-Flashdrive or HDD
- add the kernel to /System/Library/Kernels/
- replace the Boot.efi in /System/Library/CoreServices/ as well as /usr/standalone/i386 with the new one from here.


The PB3-Installer boots fine on my MBP2,2 (late 2006, EFI32).
Of course no graphics acceleration and transparency without appropriate 64bit graphics Kexts.


Determining the Board-ID via Terminal: ioreg -lp IOService | grep board-id

The Mac-Model can be identified with the System Profiler App in Utilities.

Extracting the OSInstall.mpkg via Terminal: xar -x -f OSInstall.mpkg
Packing the OSInstall.mpkg via Terminal: xar -c -f OSInstall.mpkg *

The Kernel can be extracted with Pacifist from InstallESD.dmg -> Packages -> Essentials.pkg -> /System/Library/Kernels/kernel

Thanks i'm going to try, then i will hope someone will make 64bit kexts for GMAX3100

----------

all macs with gma x3100 are 64bit boot.efi capable

So we don't need this, right?

- replace the Boot.efi in /System/Library/CoreServices/ as well as /usr/standalone/i386 with the new one from here.

 

[ikir]

@atvusr

I've done all! Installer reports no problem, but at first boot i get the "can't load on this system" image. I edited both PlatformSupport and InstallableMachines, also created a new OSInstall.mpkg following your steps. I will double check. I've jumped the boot.efi, probably the issue

- replace the Boot.efi in /System/Library/CoreServices/ as well as /usr/standalone/i386 with the new one from here.

 

[TMRJIJ]

@atvusr

I've done all! Installer reports no problem, but at first boot i get the "can't load on this system" image. I edited both PlatformSupport and InstallableMachines, also created a new OSInstall.mpkg following your steps. I will double check. I've jumped the boot.efi, probably the issue

What model do you have? I don't really know if your Mac needed the modified boot.efi or not but first try deleting the PlatformSupport.plist from the newly installed partition using the terminal in the OS X Installer image

 

[TMRJIJ]

If someone is interested in testing, here a small Guide for Yosemite on older Macs:


- get the Yosemite PB3 Installer from the App-Store
- use a USB-Flashdrive or HDD with GUID-Partition and Mac OS Extended (Journaled) Filesystem
- restore the BaseSystem.dmg with Disk Utility
- replace the Alias in /System/Installation/ with the Packages folder from InstallESD.dmg
- add the Board-ID to /System/Installation/Packages/InstallableMachines.plist
- add the Board-ID and the Mac-Model to /System/Library/CoreServices/PlatformSupport.plist
- add the Board-ID to /System/Installation/Packages/OSInstall.mpkg
- copy BaseSystem.dmg and BaseSystem.chunklist into the root folder of the USB-Flashdrive or HDD
- add the kernel to /System/Library/Kernels/
- replace the Boot.efi in /System/Library/CoreServices/ as well as /usr/standalone/i386 with the new one from here.


The PB3-Installer boots fine on my MBP2,2 (late 2006, EFI32).
Of course no graphics acceleration and transparency without appropriate 64bit graphics Kexts.


Determining the Board-ID via Terminal: ioreg -lp IOService | grep board-id

The Mac-Model can be identified with the System Profiler App in Utilities.

Extracting the OSInstall.mpkg via Terminal: xar -x -f OSInstall.mpkg
Packing the OSInstall.mpkg via Terminal: xar -c -f OSInstall.mpkg *

The Kernel can be extracted with Pacifist from InstallESD.dmg -> Packages -> Essentials.pkg -> /System/Library/Kernels/kernel

Cool, you have a more simplified guide than mine. This can go on the yosemite patch website. How are the apps workin on your Mac? Are Maps and QuickTime working okay? Any sound or video problems like youtube glitches or Netflix issues? Did the PlatformSupport.plist overwrite when updating to PB4?

 

[ikir]

What model do you have? I don't really know if your Mac needed the modified boot.efi or not but first try deleting the PlatformSupport.plist from the newly installed partition using the terminal in the OS X Installer image

I've rereplaced boot.fi with the original Yosemite one and now the installer works again, trying to make a clean install. If still no joy i will try to delete PlatformSupport but should not needed since i've edited it and aded support for my Mac as the guide said. I will let you know later.

 

[TMRJIJ]

I've rereplaced boot.fi with the original Yosemite one and now the installer works again, trying to make a clean install. If still no joy i will try to delete PlatformSupport but should not needed since i've edited it and aded support for my Mac as the guide said. I will let you know later.

If the Installation is successful but the Mac is unable to boot into OS X Yosemite, go back to the OS X Installer and find the terminal. Enter this:
sudo rm /Volumes/[Macintosh HD Name]/System/Library/CoreServices/PlatformSupport.plist

The OS X Installer sometimes adds another platformsupport.plist during installation. I don't know where exactly that copy is coming from though.

 

[CamCroz99]

Where is the best place that I can/should download the installer from? Unsurprisingly, it won't let me from the App store.

 

[atvusr]

Where is the best place that I can/should download the installer from? Unsurprisingly, it won't let me from the App store.

Install Mavericks in a Virtual Machine and try to download therein the Yosemite PB4 from the App-Store.

 

[TMRJIJ]

Where is the best place that I can/should download the installer from? Unsurprisingly, it won't let me from the App store.

If you don't have a OS X Mavericks Virtual Machine, try this link
We will hopefully have direct downloads on the site when the OS is released

 

[CamCroz99]

Where is the Basesystem.dmg file located? Is it just the .app?


NVM I forgot to unhide my files.

 

[CamCroz99]

- add the Board-ID to /System/Installation/Packages/OSInstall.mpkg
- copy BaseSystem.dmg and BaseSystem.chunklist into the root folder of the USB-Flashdrive or HDD
- add the kernel to /System/Library/Kernels/

Having a little trouble with the first step there. I can't for the life of me figure out how to add my board ID to the mpkg. Any help would be appreciated.

 

[TMRJIJ]

Editing OSInstall.mpkg

Having a little trouble with the first step there. I can't for the life of me figure out how to add my board ID to the mpkg. Any help would be appreciated.

Trying using Flat Package Editor from XCode. More Details here.