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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.
houser said:
So 15.7.7 is finally out and out of RC. 24G720, same as last RC
Also Tahoe 26.5 and the usual slew of Apple updates.
Click to expand...
Full installer at;
softwareupdate --list-full-installers <—to see what's available As of 5-11-2026;
softwareupdate --fetch-full-installer --full-installer-version 26.5 <—latest Tahoe
build 25F71
softwareupdate --fetch-full-installer --full-installer-version 15.7.7 <—latest Sequoia
build 24G720
 
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Wasp14 said:
Is there an easy way to disable the system notifications from showing to upgrade to Tahoe? I don't want there being any chance that it'll upgrade me to an unsupported OS, on top of just wanting to stay on Sequoia. The red badge never disappears and it's always showing to upgrade to Tahoe in settings, which I probably won't ever do.
Click to expand...
defaults write com.apple.SoftwareUpdate UserNotificationDate -date "2035-01-01 00:00:00 +0000"
defaults write com.apple.SoftwareUpdate MajorOSUserNotificationDate -date "2035-01-01 00:00:00 +0000"

No guarantees.
 
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Wasp14 said:
Is there an easy way to disable the system notifications from showing to upgrade to Tahoe? I don't want there being any chance that it'll upgrade me to an unsupported OS, on top of just wanting to stay on Sequoia. The red badge never disappears and it's always showing to upgrade to Tahoe in settings, which I probably won't ever do.
Click to expand...
Easy is subjective…
forums.macrumors.com

(experimental) No Tahoe for Sequoia

Update 4: another way - blocking gdmf.apple.com in hosts https://forums.macrumors.com/threads/experimental-no-tahoe-for-sequoia.2480020/post-34543131 https://forums.macrumors.com/threads/experimental-no-tahoe-for-sequoia.2480020/post-34556209 Update 3: two ways, neither perfect - enroll in...
forums.macrumors.com forums.macrumors.com
 
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imacker2011 said:
This was mentioned earlier in this thread to block Tahoe updates – I use it on three OCLP machines.
Click to expand...
Thank you, this worked perfectly. Appreciate the advice.
 

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Wasp14 said:
Is there an easy way to disable the system notifications from showing to upgrade to Tahoe? I don't want there being any chance that it'll upgrade me to an unsupported OS, on top of just wanting to stay on Sequoia. The red badge never disappears and it's always showing to upgrade to Tahoe in settings, which I probably won't ever do.
Click to expand...
public beta for Sequoia
 
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I also updated 2 2011 27" iMacs with Kepler graphics (K2100m/K4100m) and my MBP 2015 to 15.7.7 without problems. As usual, I created a USB installer stick with OCLP and started the setup process from within the GUI.
 
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Hello, I tried to look here but there is so many results on wifi...

I have not used my 2012 MBP 15" for about month. It is on latest OCLP and 15.7.3. When I woke it up I got no wifi with icon with exclamation mark and greyed wifi switch.

I tried boot in safe mode, no change.
Bluetooth can be turned on but in minute it turns off again.
Ethernet works normally

I tried to check system profiler and it looks like HW is there but I am not sure how to make sure WIFI card is active.

What can I do to make better diagnostic?
I did new post install patch but no change.

I had try to boot from some other drive yet if it work.

Thanks a lot for advice
 
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One of your first steps is to test if the Bluetooth and Wi-Fi are actually malfunctioning in hardware.

Can you set up an external hard drive or USB flash/SSD drive with any version of macOS from 10.7.4 to 10.15 Catalina (the last officially compatible macOS for your 2012 MBP), boot to it (by holding the Option key before startup) and test Bluetooth and wi-fi function?
 
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MacMorrison said:
One of your first steps is to test if the Bluetooth and Wi-Fi are actually malfunctioning in hardware.

Can you set up an external hard drive or USB flash/SSD drive with macOS 10.7.4 to 10.15 Catalina (the last officially compatible macOS for your 2012 MBP), boot to it (by holding the Option key before startup) and test Bluetooth and wi-fi function?
Click to expand...
I found drive with High Sierra and when I have booted from it it shows no HW at all 🙁
Only hope is it just needs to push the card but ....
 
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ota smooth as usual again.
 

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Having some issues updating my 2012 15-inch MBP to 15.7.7. 😱

I have to run updates via terminal as the software update GUI in System Settings is broken on this model (known issue in OCLP's logs). But while the terminal suggests that 15.7.7 is downloading, it doesn't restart at the end of the process as expected. Assumed it was in the 'preparing update' phase of the process and there was just no indication of that part of the process in Terminal, but having waited an hour or more, no sign of the system rebooting. And when I recheck available software updates, it lists 15.7.7 as available with no indication it has downloaded? 😒

Screenshot 2026-05-13 at 15.27.36.png


Can't see any sign of updaters still working on things in Activity Monitor. There's also no sign in System Info > Installations (although, weirdly, the OCLP download of the new Metallib is there), but I'm not sure if this will show up if the update is just staged? 🫤

Screenshot 2026-05-13 at 15.38.55.png
 
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houser said:
I used to have a few of those.
Have you tried downloading the full installer from mrmacintosh.com and then running the installer from the app folder?
Seems stable here across a bunch of legacy Macs including that one. Good luck.
Click to expand...

I can try that method, sure. Just don't want to interfere if there is still something happening in the background with my existing download attempt. There are fresh entries in the install.log but I think these are just scheduled processes rather than a sign that 15.7.7 was downloaded and is being prepared.

Screenshot 2026-05-13 at 16.37.42.png


Apologies, figuring all this out for the first time. 😅 All my other/previous OCLP machines update fine from System Settings for these sorts of point releases.
 
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josehill said:
macOS 15.7.7 final release on a 13" mid-2012 MacBook Pro (MBP 9,2) installed and running as expected.
Click to expand...
likewise on MBP11,1 (13" late 2013): 15.7.7 installed to internal SSD, from USB installer, with OCLP 2.4.1. The corresponding Metallib pkg (24G720) is used by OCLP for post install patching.

Running well. Thank you developers!
 
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