macOS 10.15 Catalina on Unsupported Macs

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julianfairfax

macrumors 65816
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Jun 11, 2018
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com.apple.macbook-unibody.png com.apple.macbook-unibody-plastic.png


All research, testing, and releases of tools and patches relating to macOS 10.15 Catalina on Unsupported Macs should be posted here.

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Machine Support
As it currently seems, all machines with at least SSE4.1 support (C2D penryn and upwards) seem to be able to at least boot Catalina. This covers all of the machines that were able to run Mojave, even the officially unsupported systems.

Some systems appear to be fully compatible. However Apple blocks them from installing Catalina, due to existing configurations of those systems, which are not compatible.
Those systems include the Mac Pro 4,1 & 5,1 as well as 2010 & 2011 iMacs, if they feature upgraded, metal-compatible GPUs and compatible WiFi/Bluetooth-cards. Mac Pros also require to be running non dual x55xx CPUs (like X56xx) to omit audio stuttering. An installer to enable these systems is available here.

Early-2008 or newer Mac Pro, iMac, or MacBook Pro
MacPro3,1
MacPro4,1
iMac8,1
iMac9,1
iMac10,x
iMac11,x (systems with AMD Radeon HD 5xxx and 6xxx series GPUs will be almost unusable due to the lack of acceleration)
iMac12,x (systems with AMD Radeon HD 5xxx and 6xxx series GPUs will be almost unusable due to the lack of acceleration)
MacBookPro4,1
MacBookPro5,x
MacBookPro6,x
MacBookPro7,1
MacBookPro8,x

Late-2008 or newer MacBook Air or Aluminum Unibody MacBook
MacBookAir2,1
MacBookAir3,x
MacBookAir4,x
MacBook5,1

Early-2009 or newer Mac Mini or white MacBook
Macmini3,1
Macmini4,1
Macmini5,x
MacBook5,2
MacBook6,1
MacBook7,1

Early-2008 or newer Xserve
Xserve2,1
Xserve3,1


Video Card Support

As with the machine support, all video cards that were supported on Mojave, supported or unsupported systems, can still run Catalina.

Pre-Metal AMD video cards (Radeon HD 6xxx series and older without acceleration, Radeon HD 4xxx series and older with acceleration.)
Pre-Metal Nvidia video cards (GeForce 5xx series and older, i.e. 8600M(GT)/8800M(GT), 9400M/9600M(GT), 320M/330M)
Pre-Metal Intel video cards (Intel HD Graphics 3000 and Intel HD Graphics Arrandale)

Full acceleration for older Nvidia and Intel cards has been achieved on Catalina beta 1 to 10, GM and final release.


Installation
macOS Catalina can be installed on an unsupported system using @dosdude1's macOS Catalina Patcher tool or @julianfairfax's macOS Patcher 3.0 beta tool. A semi-solution for the transparency issues can be achieved with BlueSky by @julianfairfax


Known issues
In Photos.app: There is no tab for "All Photos." However, if you right-click any photo, you can choose, "Show in All Photos" and the expected "All Photos" functionality is displayed.
You can also set up an intelligent album, call it „All Photos“ and use search criteria „Taken is not 1/1/1900“.


Catalina Builds and Installer Versions

2019/06/04 10.15.0 beta 1, build 19A471t, installer 15.0.11
2019/06/17 10.15.0 beta 2, build 19A487l, installer 15.0.15
2019/07/02 10.15.0 beta 3, build 19A501i, installer 15.0.17
2019/07/16 10.15.0 beta 4, build 19A512f, installer 15.0.18
2019/07/31 10.15.0 beta 5, build 19A526h, installer 15.0.21
2019/08/19 10.15.0 beta 6, build 19A536g, installer 15.0.23
2019/08/28 10.15.0 beta 7, build 19A546d, installer 15.0.25
2019/09/10 10.15.0 beta 8, build 19A558d, installer 15.0.27
2019/09/23 10.15.0 beta 9, build 19A573a, installer 15.0.30
2019/09/30 10.15.0 beta 10, build 19A578c, installer 15.0.31
2019/10/03 10.15.0 GM, build 19A582a, installer 15.0.32
2019/10/07 10.15.0 final release, build 19A583, installer 15.0.33
2019/10/29 10.15.1 release, build 19B88, installer 15.1.03

Credits

@ASentientBot - Achieved full graphics acceleration, achieved semi-acceleration, fixed IOHID timeout, fixed AirPort, fixed Xcode 11 Metal crashes.
@jackluke - Fixed brightness control under semi-acceleration.
@parrotgeek1 - Developed LegacyUSBInjector, SIPManager, NDRVShim, source.
@Czo - Developed SUVMMFaker, source.
@Rastafabi - Catalina Loader for unsupported systems with supported hardware.

Apple - Fixed IOHID timeout, fixed Xcode 11 Metal crashes, fixed Siri Metal crashes, fixed Photos Metal crashes
Don't know why you did it, but, thanks Apple. Now please just let us have our fun with acceleration.

Moderator Note:
Please do not ask for, or provide help getting developers profile information to access unauthorised beta software on MacRumors. If you are not a developer, sign up to the Apple Beta Software Program to get the official public beta releases.


As requested, this post is now a wiki post. Feel free to edit it yourself.

 
Last edited by hvds:

julianfairfax

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Cool... but doesn't Collin @dosdude1 usually start these threads?
I guess not this time. My goal is to get it running as soon as I can and I could certainly use the help of people more or even less experienced than me. And thanks to @dosdude1 and @Larsvonhier, I now have my own MacBook4,1 to use for testing unsupported macOS on. As I'm currently the only developer who is developing a patcher tool that supports the MacBook4,1, this is very useful for me. Thanks a lot to both of them.
 

hrutkaymods

macrumors member
May 7, 2014
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Not this time. Besides, doesn't really matter. My goal is to get it running as soon as I can. And thanks to @dosdude1 and @Larsvonhier, I now have my own MacBook4,1 to use for testing unsupported macOS on. As I'm currently the only developer who is developing a patcher tool that supports the MacBook4,1, this is very useful for me. Thanks a lot to both of them.
cool well I'm excited to get the ball rolling, I'll be texting Collin all day to be an early beta tester as usual... the excitement is real with this on @dosdude1 :D
 

julianfairfax

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cool well I'm excited to get the ball rolling, I'll be texting Collin all day to be an early beta tester as usual... the excitement is real with this on @dosdude1 :D
I hope we'll be able to overcome any issues that arise. Personally, I won't be of much use today (Cupertino time) since I live in a different time zone. School is also going to get in the way. But I'll still have time to work on what will most likely be an amazing ongoing project.
 
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julianfairfax

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MacOS Catalina it is!
Was just going to say that. I'm changing the name. We're going to run Catalina on our older devices then.
[doublepost=1559587909][/doublepost]
I had intended to make this thread once the OS name was officially announced. Now that it's been done earlier than I intended, please change the title accordingly.
Sorry if I went a bit too fast. I changed the name a minute ago.
 
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redheeler

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Oct 17, 2014
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Ugh, just like last year, Apple didn't announce system compatibility. I'll have to wait until I'm able to download a copy in the Developer Portal to find out.
They did actually, it was flashed on a quick slide during last year's keynote. Very strange, I would've at least expected them to mention the requirements for iOS 13 this year.
 
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julianfairfax

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They did actually, it was flashed on a quick slide during last year's the keynote. Very strange, I would've at least expected them to mention the requirements for iOS 13 this year.
Those are in the Newsroom post for iOS 13. "New software features will be available this fall as a free software update for iPhone 6s and later, and will be available with iPadOS for iPad Air 2 and later, all iPad Pro models, iPad 5th generation and later, and iPad mini 4 and later."
 

retta283

macrumors 65816
Jun 8, 2018
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They did actually, it was flashed on a quick slide during last year's the keynote. Very strange, I would've at least expected them to mention the requirements for iOS 13 this year.
I think it's iPad Air 2, Mini 4, and all Pros, iPhone 6S and SE or newer, and iPod touch 7.

Hopefully no devices are dropped with OS 10.15 because almost nothing in the downlevel has changed.
[doublepost=1559589753][/doublepost]
Those are in the Newsroom post for iOS 13. "New software features will be available this fall as a free software update for iPhone 6s and later, and will be available with iPadOS for iPad Air 2 and later, all iPad Pro models, iPad 5th generation and later, and iPad mini 4 and later."
Beat me to it by just a second
 

redheeler

macrumors 604
Oct 17, 2014
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Those are in the Newsroom post for iOS 13. "New software features will be available this fall as a free software update for iPhone 6s and later, and will be available with iPadOS for iPad Air 2 and later, all iPad Pro models, iPad 5th generation and later, and iPad mini 4 and later."
Exactly as I expected for iOS 13. Good to know my iPad Air 2 is safe.
 

Badruzeus

macrumors regular
Jun 14, 2018
127
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Indonesia
Ugh, just like last year, Apple didn't announce system compatibility. I'll have to wait until I'm able to download a copy in the Developer Portal to find out.
I'll try it on my laptop with non-Metal NVDA GFX once Dev Beta Installer is ready.
 

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The first post in this thread is a WikiPost, and can be edited by anyone with the appropriate permissions.