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macOS 15 Sequoia on Unsupported Macs Thread

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The first post of this thread is a WikiPost and can be edited by anyone with the appropiate permissions. Your edits will be public.
I have a 12" 2017 MacBook I want to try OCLP with. I successfully created the USB installer but, when I get to the part to reboot using the Option key, the USB drive isn't listed. The drive shows if I boot normally. Any ideas what I can do to get it to show. I am using a Satechi dongle.
 
MoerBoer said:
I don't use it a lot, but yes, seems to work just fine.

Anything specific you would like me to test?
Click to expand...
no need to test... MBP 11,1 11,2 14,1 work perfectly but the Mac Pro 6,1 I only have a black screen where there should be an image instead of what the camera sees. even if connected by usb.
 
nekton1 said:
Thanks for your effort and interest in this deeveedee. I OTA-updated to the 15.3 RC version yesterday without issue. To be sure what model I'm spoofing, I just checked System Information again and lo and behold it says 19,2! I'm about 95% sure that when I ran the spoofing a week or so ago, I chose 18,2 after reading the wrong documentation for Ventura so it is something of a mystery why it is 19,2 now and I wonder if I simply made an operator error. Anyhow, the system is working, although I still can't connect UC but thanks for your help with this.
Click to expand...
I got Universal Control working at last. The problem turned out to be simply that the spoofed (8,1) MM was using DHCP and had obtained an Ethernet IP address in a different range from the M2 MM. Once I set both to Manual IP in the same range, it works. Thanks for your effort deeveedee.
 
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ronton3 said:
Thanks for responding: Today I downloaded 24D57 from OSXdaily their latest, to the applications folder, and OCLP 2.3 successfully created a usb installer. I then tried to download 24D60 with OCLP and again the extraction failed. Maybe it is because I have 2.3 instead of 2.2, doesn't seem likely.
Click to expand...
I don't have OCLP 2.2.3n installed as I haven't tried looking for the download link for this. I stayed with the "approved" OCLP download which is currently vers 2.2.0 and based on your comment tried building a bootable thumb drive using MacOS 15.3 beta 3 build 24D60 and it worked.
 
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The devs do not want us to post direct links, but they say it is okay to post this page with the GUI.

At the same time 2.3 may be a problem and offers no apparent real benefit. Why it works with a downloaded installer and not an installer it downloads on my 2015 Imac is a mystery.


OpenCore-Legacy-Patcher/SOURCE.md at main · dortania/OpenCore-Legacy-Patcher

Experience macOS just like before. Contribute to dortania/OpenCore-Legacy-Patcher development by creating an account on GitHub.
github.com
 
Mac Mini mid-2012 running OCLP Sequoia 15.2. It has 16GB RAM and dual 1tB SSD.
The TV app keeps crashing.
Does anybody have an idea of a fix apart from booting Catalina?
 
haralds said:
Mac Mini mid-2012 running OCLP Sequoia 15.2. It has 16GB RAM and dual 1tB SSD.
The TV app keeps crashing.
Does anybody have an idea of a fix apart from booting Catalina?
Click to expand...
1. Upgrade to 15.3 with OCLP 2.2.0
2. Try Running Onyx
3. If you mean that it is just the video windows that quits rather than a full crash,
there was a bug some time ago and it helped using a VPN to the US. Good luck.
 
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Macdctr said:
I don't have OCLP 2.2.3n installed as I haven't tried looking for the download link for this. I stayed with the "approved" OCLP download which is currently vers 2.2.0 and based on your comment tried building a bootable thumb drive using MacOS 15.3 beta 3 build 24D60 and it worked.
Click to expand...

I use an external SSD for OCLP/SEQ, to try something new, I erased the internal HHD Ventura, setup OCLP(2.2)not 2.3, and Seq 24D60, OCLP successfull downloaded 24D60 installer and made the USB installer, why doesn't 2.3 on the external drive do the same.

The conclusion would seem to be that something about 2.3 is different than 2.2 in the way installers are made.
 

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I managed to sort out what I'd written about so deleted it, sorry for the inconvenience.
 
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vkd said:
I updated to Sequoia 15.3 yesterday, using OCLP 2.2.0 on this 2011 iMac 12,2. All well and good, except iCloud insists that I accept their Terms & Conditions. It has put a red 1 badge on System Settings icon because of it. There's a new page there called New iCloud Terms and Conditions with a button on it 'Terms and Conditions'. You click on that and it sends you to 'Sign in' on the page above in S.S.. Funnily, the 'Email or Phone Number' field there
is dead, it doesn't accept input. I can log in other ways though, such as in the App Store or on icloud.com etc., but there's no way there to accept these T&C. Once logged it it changes nothing either, except that the T&C button sends you to your account page in System Settings instead, again with no way to accept iCloud T&C.

I've trawled the internet, been on Chat with Apple Support, who ultimately couldn't help, one attendant even stopped attending me when he realised I was using OCLP, but another helped, which led to needing to telephone a senior Apple systems engineer to continue support, which I didn't do because my iMac is outside the help zone, being 14 years old now.

Anyone had this problem? Anyone know how to defeat it?

View attachment 2478425

View attachment 2478426
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I’ve not had this problem but can you try it before root patching as long as you have a alternative Internet connection? Ethernet or usb WiFi? I think if I accepted them on my iPhone the Mac one updated too.
 
A question on the T2 chip if anyone has this knowledge?

I myself am retired with limited funds so like many of us need to make smart choices for the last 5 years or so for our legacy Macs. I of course understand that this is speculative, but your educated guesswork would be appreciated and perhaps useful to many on this thread.
I am specifically trying to understand what role the T2 chip will play with regards to OCLP and future compatibility with the last MacOS Intel updates. It seems to me that there are no Macs with T2 that are supported by OCLP.
I have also read that the T2 is very hard to incorporate in the OCLP patches and pretty unlikely to work with OCLP.
These Macs are also as I understand it still supported by Apple, so it is not an issue as yet but will be.

So here is my main question:
What is the story for MBP:s with T2? Is it possible at all that a MBP with a T2 chip will work with OCLP on any
possible Intel MacOS after Sequoia when the last Intel Macs with T2 are dropped by Apple?

The grapevine seems to be mostly divided between two options:
1. Sequoia will be the last OS with Intel support
2. There might be one more Intel-compatible Mac OS in 2025 and that might be the last.
3. Something else based on that it is a slightly unusual situation with the change from Intel to Apple Silicon and only comparable to the switch from Power PC to Intel a long time ago, that some of us remember ;)
There might be incentives for Apple to not have a very sharp cut-off due to this. Or not. One can dream..

So I guess I am just looking at the end date for this which if we are lucky is likely around 3-5 years from the release of the last Intel MacOS and which Legacy Macs to bet on for this.
 
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MacinMan said:
In light of your post, I wanted to draw attention to this video, and ask if Apple Silicon will be something that can be trusted going forward, or if it's going to turn out to have more issues than intel going forward when it comes to security and privacy concerns:
Click to expand...
Similar exploits occasionally turn up with Intel and AMD cpus as well, it’s nothing particularly unusual and that’s why it’s important to keep computers updated. Related to this thread, Apple has historically maintained macOS support for Intel Macs as long as Intel maintain support for the CPU’s in them, i.e. as long as Intel patches bugs like this one. This year Intel will be ending support for 8th and 9th gen Core CPUs which will most likely mean the end of the road for Mac’s from before 2020 when the 10th generation was introduced.
 
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headlessmike said:
Related to this thread, Apple has historically maintained macOS support for Intel Macs as long as Intel maintain support for the CPU’s in them, i.e. as long as Intel patches bugs like this one. This year Intel will be ending support for 8th and 9th gen Core CPUs which will most likely mean the end of the road for Mac’s from before 2020 when the 10th generation was introduced.
Click to expand...
Interesting, can you clarify please? Do you mean the 5-year-end of MacOS support-clock starts ticking down this year for pre 2020 MBP or even sooner? Any idea when support for 10th gen will also end and the same 5 year cycle?
 
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houser said:
Interesting, can you clarify please? Do you mean the 5-year-end of MacOS support-clock starts ticking down this year for pre 2020 MBP or even sooner? Any idea when support for 10th gen will also end and the same 5 year cycle?
Click to expand...
I have no proof of how it will be this cycle, but in general Apple usually drops support of processors in the latest versions of macOS the same year as Intel does. Here is the list of CPUs that are (or soon will be) unsupported by Intel: https://www.intel.com/content/www/us/en/support/articles/000022396/processors.html

Looking at the list again I see that they are only dropping support for 9th gen desktop CPUs, while mobile CPUs from that generation have no date set. That would suggest that all pre-2020 Macs except the 2019 MacBook Pro would lose official support from Intel this year (including the Xeon chips in the 2019 Mac Pro). Time will tell if Apple follows the same cadence or if they choose to end support for the last Intel Macs sooner that the dates given by Intel. Apple can still choose to provide their own updates, and they do generally provide security updates for the last two versions of macOS, but without official support from Intel.
 
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While is is a bit disappointing to hear of exploits in Apple silicon, it's certainly not unusual to hear of these sorts of things with Intel or AMD as well. And of course, once known exploits can typically be mitigated so they are not particularly problematic. The real thing that should make you nervous is what exploits are out there but unknown. There are no mitigations in place for those. I suspect that for most people the social engineering exploits are the most likely so if you practice safe computing habits you will probably be fine. And if not there's always nuke the machine and restore from backup. Everyone is making regular backups right?
 
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MacinMan said:
In light of your post, I wanted to draw attention to this video, and ask if Apple Silicon will be something that can be trusted going forward, or if it's going to turn out to have more issues than intel going forward when it comes to security and privacy concerns:
Click to expand...
Dear friends, before you fall victim to prejudices against Macs with Apple Silicon and become fascinated and conditioned by abstract and totally debatable opinions, I urge you to seek out and carefully read all the articles made by Howard Oakley in his Blog The Eclectic Light Company.
[ This is an example -> https://eclecticlight.co/2024/10/30/securing-the-modern-mac-an-overview/ ]

Indeed, among Howard's many articles, you will find real technical insights into the SECURITY of the new Silicon Macs, with very clear and detailed diagrams that will make you understand, without any doubt, how much Apple has been working for years, aiming for the most absolute security possible. Ditto for the latest Intel Macs.
If Macs really were or became as hackable as the guy in the YouTube video says and if Apple did not remedy it, after two days the debacle would be on everyone's lips, even the news would report it, and Apple would collapse on the stock market... So, this is impossible, and Apple would never let it happen, even if it meant completely recreating macOS...

Fortunately, this is not the case and - I repeat - you also learn, as I did, to follow Howard's Blog every day. You will see that you will learn to understand, with clarity, all the new things Apple has introduced concerning how macOS works, the breakdown of hidden and/or sealed volumes, and so on.

If all this doesn't convince you or you don't like it ... go right back to being charmed by Windows and all the patches it needs (antivirus first and foremost) so that you don't get ripped off by those who know how to do it; and with Windows it doesn't take much science to be able to get a nice service done, by strangers, without you noticing until it will is too late to fix it.
 
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Kevo said:
While is is a bit disappointing to hear of exploits in Apple silicon, it's certainly not unusual to hear of these sorts of things with Intel or AMD as well. And of course, once known exploits can typically be mitigated so they are not particularly problematic. The real thing that should make you nervous is what exploits are out there but unknown.
Click to expand...
...there are known knowns, or rather, known unknowns...:)
 
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houser said:
Just a thought..;)
Security is always interesting, but maybe other threads can be used for this, as this could get extensive.
For OCLP specifically, there is this one for example:
Or start or add to an Intel/M1 Mac/PC thread in the relevant forum. I would assume there are always those..
Click to expand...
I fully agree with you, @houser!
I tried to put an end to the posts that were beginning to arise on the subject.
I have, therefore, posted a decisive, comprehensive and all in all concise intervention thanks to my cross-reference to a truly historical, senior and respected Mac expert in the world (O. Hoakley), also by various Apple’s engineers.
Hoping, thus, to end a discussion that risked alarming any neophytes, impressed by the posted video, I have tried, however, to briefly clarify the concept.
I apologise for the O.T.
 
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