Some of the early models from these lines - 63 different Macs, to be precise - were running Mac OS X Tiger (10.4) or Mac OS X Leopard (10.5) by default and will need to be upgraded to Mac OS X Snow Leopard (10.6.8) prior to upgrading to Yosemite if the operating system has not been upgraded already. Although Yosemite is free, Snow Leopard is not. Essentially the Mojave Patcher Tool creates a modified USB installer drive (similar to the regular Mojave boot installer drive you can make) which you can then use to install not only macOS Mojave on the otherwise unsupported Macs listed below, but also a series of patched macOS Mojave component files that allow it to boot. A new tool called ‘Patched Sur’, currently in beta, allows users to download and install macOS Big Sur on unsupported Macs. The patcher downloads the original installation file for Big Sur (or. A new update to the community-built 'Continuity Activation Tool' for OS X Yosemite brings Bluetooth 4.0 USB dongle support, allowing users of some older model Macs to enable Handoff and other.

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Question :

I read somewhere that it is possible to install the latest version of OSX 10.10 Yosemite on my Mac, even though the official installer refuses to install.

Can you give me any directions ?

Answer :

Installing newer versions of OSX on slightly older Macs that do not meet the official system requirements can be done using MacPostFactor (MCPF).

MacPostFactor also supports installing OSX versions up to OSX 10.10 Yosemite on older Macs. And a new version that supports installing OSX 10.11 El_Capitan is in the works.

For more info (and downloads), go to the info page on MacRumors.com :

or see the (less readable) official page of the MacPostFactor team :

…in short :

!!! THIS IS FOR (RATHER) EXPERIENCED MAC-USERS ONLY, AND SHOULD NOT BE DONE ON YOUR ‘ONE AND ONLY’ MAC !!!

!! REMEMBER : DO FOLLOW THE COMPLETE INSTRUCTIONS THAT CAN BE FOUND HERE : MacPost Factor info page on MacRumors.com

…that should be it !

enjoy !

😉

1. OS X 10.6 Snow Leopard was the first OS X version with optional support for a 64-bit kernel, allowing booting either with a 32-bit or 64-bit kernel. However, Apple did not support booting the 64-bit kernel in Macs that shipped with EFI32 firmware, even if they had 64-bit processors capable of running the 64-bit kernel. When Apple dropped the 32-bit kernel entirely from OS X, starting with OS X 10.8 Mountain Lion, EFI32 Macs no longer had an Apple-supported mechanism to boot newer OS X versions.
2. Fortunately, we have found a work around for these version of OS X. Here we provide guides in Post 1 and 2 and support for Installing OS X Yosemite on your Unsupported Mac.
3. This first post is usually updated with recent summarized information, updates, and more solutions.
4. For those who have 2006/2007 Mac Pros, you may be best suited to using Mr. Zarniwoop's Guide here.
5. Prerequisites
6. Tested Macs listed below. Here are the minimum requirements:
7. - At least 2GB of RAM.
8. - A copy of Yosemite in Applications Folder (.app file preferred)
9. -MacBook3,x
10. -MacBookPro2,x
11. -MacMini1,x (C2D upgraded)
12. -iMac4,x (C2D can be upgraded)
13. We DON'T assist with Hackintosh. All private messages/emails involving installing OS X on non-Apple hardware will be redirected to another support team.
14. Guide to Installing OS X Yosemite on Unsupported Macs
15. ANY HARM OR DAMAGE CAUSED BY THIS GUIDE HAPPENED UNDER YOUR OWN RESPONSIBILITY!
16. Be sure to have root privileges (administrator password) as OS X will prompt you for this on some stage.
17. 2a: I have some attachments below to help shave off a couple of hours.
18. 3a: Get an OS X Yosemite Installer app (Recommended from the Mac App Store)
19. 4a: Make sure you have an Intel-Based Mac that supported OS X 10.7 Lion
20. 1b: Get an empty USB-Stick (8GB or more)/use an external hard disk
21. 2b: backup everything on the drive to another drive
22. 3b: open Disk Utility and select your drive for installation
23. 4b: select the partition tab -> advanced options -> GUID
24. 5b: chose a drive name -> select HFS+ as the partition format -> partition the drive
25. 1c: in Finder right-click the app and select show package contents
26. -> navigate to /Contents/Resources/SharedSupport and double-cick the dmg-file
27. 2c: show hidden files in Finder (use included DisAppear.app)
28. 3c: in Finder navigate to the Drive you've just mounted
29. 4c: locate BaseSystem.dmg -> drop it to the lower Disk Utility side pane
30. 5c: select your previously created install partition (not drive!) -> restore tab -> drop the image from the side pane to the source field
31. 6c: restore
32. 7c: in Finder locate the mounted InstallESD and copy the 'Packages' folder
33. 8c: past the folder to /System/Installation/ -> you will need to replace the file in there with the actual folder.
34. 1d: You will have to replace the files without corrupting them. Some of the files are signed so be careful not to change anything else.
35. 2d: run the IORegistryExplorer.app -> make sure in the top left corner IOServices is selected
36. 3d: under root select your Mac(model) -> on the right at the top copy the board-id value.
37. 4d: open /System/Installation/Packages/InstallableMachines.plist -> search for the last entry and replace it
38. 5d: open /System/Library/CoreServices/PlatformSupport.plist
39. -> search for the last entry of board-ids and replace it
40. -> search for the last entry of Macs and insert yours as found in the IORegistryExplorer.app
41. 6d: OSInstall.mpkg
42. -> make a copy of the /System/Installation/Packages/OSInstall.mpkg into a temporary folder for editing
43. -> Open the OSInstall.mpkg via Flat Package Editor, then drag the 'Distribution' file to a temporary folder
44. -> add the Board-ID to the 'Distribution' file in the line 'var platformSupportValues=[' ... '];' with a simple Plain-Text-Editor in the same manner as the already existing ID's and save it.
45. -> Delete the old Distribution file in the Flat Package Editor and add in the new one.
46. -> replace the original OSInstall.mpkg in the Installer with the edited one.
47. 7d: BaseSystem
48. -> copy BaseSystem.dmg and BaseSystem.chunklist into the root folder of the USB-Flashdrive or HDD
49. 8d: Kernel
50. -> extract the Kernel using the Pacifist.app from the original InstallESD.dmg > Packages > Essentials.pkg > /System/Library/Kernels/kernel
51. -> create a folder named 'Kernels' in System/Library/
52. -> add the extracted kernel file to /System/Library/Kernels/
53. 8d (Optional): Boot.efi
54. -> If your older Mac has a 32bit EFI (EFI32) replace the Boot.efi in /System/Library/CoreServices/ as well as /usr/standalone/i386 with the version we provided or in Post 2.
55. 2e: select the USB drive (BaseSystem) and press enter
56. 3e: when booted click install/continue until you reach the disk selection menu
57. -> select you main drive (probably Macintosh HD) if you are sure about it, else select another empty drive (at least 15GB for testing/bigger if it should be a secondary system)
58. 4e: finish installation
59. (If the Mac does not reboot to the Yosemite desktop boot to the install-drive again and perform the following.
60. Boot back into the Yosemite Install Partition
61. open the terminal at the top menu bar or boot into single user mode (Hold Command -S immediately afterturning on)
62. enter: sudo rm /Volumes/[Main Drive Name]/System/Library/CoreServices/PlatformSupport.plist
63. F: Install these 64 bit Kexts from OS X Hackers link below (These will better the graphics by a little but you will not have Graphics Acceleration. Still in beta so they may not work well)
64. 1f: open the KextUtility.app by dropping all of the files inside this attachment zip folder named “kexts. . .' to it. Don't forget to drop in the AppleHDA.kext
65. 2f: reboot
66. 3f: Boot into Single User Mode (Hold Command-S after hearing the bong sound)
67. 4f:enter: sudo nvram boot-args='kext-dev-mode=1'
68. 5f: reboot again normally
69. Because of lack of working Graphics Acceleration. Your Macbook may not be able to wake from a display sleep
70. Install the NoSleep Extension
71. Set the Preferences to Never Sleep on AC Adapter and Battery
72. Check the 'Start NoSleep Utility on system startup' setting
73. Your Macbook screen will never turn off unless your actually shut down your Macbook.
74. CONGRATULATIONS!!!
75. Bugs (from multiple Mac Models)
76. 3. Video don’t play in iTunes, Safari, nor DVD Player (best use Quicktime and Google Chrome)
77. 4. Notification Center is sometimes a mess.
78. 5. Only one Screen Resolution available
79. 6. Some Apps will have artifacts if primary using Graphics Card.
80. 7. iMessage/FaceTime note:
81. Most users cannot initially login to iMessage or FaceTime using their Apple ID from their Macs after installing Yosemite as a security precaution. When trying to login, they receive an iMessage Registration validation code. The solution is to contact Apple support, provide the Mac's serial number, explain that Yosemite was installed using our guide and that iMessage isn't working and provide the validation code. Apple then unblocks the Mac, allowing iMessage and FaceTime login immediately and in the future OS updates.
82. OS X Software Updates
83. Updating . . .
84. Airdrop
85. Updating. . .
86. Support
87. Feel free to post your questions, concerns, or success story. If you can’t post us back because your only usable device is bricked, Skype me at TMRJIJ or email us at support@osxhackers.honor.es . we'll try to respond within 1-2 days.
88. Be sure to thank our awesome developers who have contributed greatly.
89. Downloads/Files for Patching
90. Files Needed for OS X Yosemite Patch only are on OS X Hackers:
91. The OS X Hackers App for Mac (10.7 or later) with all Patch files for Mavericks and Yosemite [Updated January 21, 2015]:
92. The Steps above can also be done by Oemden's SFOTT script:
93. MacPostFactor v0.2b1 has been released by Wayne Wong (@Wayne_819) and Kelian Dumerais (@MLforAll):
94. We are working on the Guide to 'Windows 8 BootCamp on Unsupported Macs.' Here is our first method guide:
95. OS X Hackers are is not affiliated with Apple Inc. Mac OS Ten (X), Mac, iOS, iPhone, iPad, and all other Apple product names are trademarks or registered trademarks of Apple Inc. All other company and product names are trademarks or registered trademarks of their respective companies.
96. MacPostFactor was made by Wayne Wong (@Wayne_819) and Kelian Dumarais (@MLforAll)
97. Guide and OSXH site/app designed by Isiah Johnson (@TMRJIJ) and Robby Sharpero and is provided by Johnson Network.
98. Developers:
99. Liem Mai, Birtha Åbel, Wayne Wong, Kelian Dumarais, Nolen Johnson, Mr. Zarniwoop, Atvusr, Tiamo, oem

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