I ruined a day today trying to figure out RX580 issue, fans when not even spinning during boot. And guess what I just connected 2x6pin to 8pin cable (which I reconnected 10 times today) and it works… the only benefit from this wasted day is ROM 144 as it forced me to boot on older hd to Mac 10.11 so I went up to High Sierra wild original GPU…
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macOS 10.15 Catalina on Unsupported Macs
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I ruined a day today trying to figure out RX580 issue, fans when not even spinning during boot. And guess what I just connected 2x6pin to 8pin cable (which I reconnected 10 times today) and it works… the only benefit from this wasted day is ROM 144 as it forced me to boot on older hd to Mac 10.11 so I went up to High Sierra wild original GPU…
I run nothing fancy in terms of apps, neither I need bootcamp / Windows. The thing is when looking at the Open Core thread I already have a headache. Too many options. I have RX 580 + MP 5,1 with 6-core 3.33Ghz CPU, which package would be the best? Martin's?
As I said, OCLP is the auto pilot solution. Download, run and install, install Big Sur. Full doc included.
Just like to report back that I finally got this going by using a larger USB (4GB). The reason is that macOS won't create an EFI partition on a small size USB. I did have another 16GB USB with the stock Catalina Installation and an OCLP on its EFI and not want to overwrite with this OC.
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I also got the broken internal EFI going by cloning from a good EFI system partition, in this case, my USB with Install macOS Catalina and OCLP. The actual command is
sudo dd if=/dev/disk3s1 of=/dev/disk0s1 where disk3s1 is the USB EFI and disk0s1 is the broken internal EFI after FusionDrive setup.
Now I can boot OCLP from my internal SSD instead of the USB.
just installed the dosdude patch on my late 2011 MacBook Pro with the 2.4i5, 8g of ram and a 500gb hd. only been playing with the set up now for a couple hours, got the safari 15 update and its Catalina 10.15.7.... heard from someone they got the Big Sur update notification, wonder if I will, and if it is worth doing or leave well enough alone.
I decided to update as well. It is still running smoothly. Did the normal patches, and ran silent knight after
I installed OCLP Catalina on my iMac12,2 today. It has the same Displays preference pane error after applying the post-install volume patch for graphics card acceleration. This issue is very persistent and predicable, which may be good for helping finding a solution.
SilentKnight, Skint, silnite, LockRattler, SystHist & Scrub
Skint – a watchful eye on security settings Updated! Checks key security settings and features including SIP, SSV, Gatekeeper, XProtect, XProtect Remediator and macOS security updates. Runs a…
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That‘s true. I had been using dosdude1’s Catalina on my iMac10,1 since Feb this year and it had been super stable. I was very much impressed by dosdude1’s excellent work including his installation video.
The reason for using OCLP Catalina on my iMac12,2 with stock HD6970 graphics card is that dosdude1’s Catalina does not support HD5xxxx & HD6xxx cards. And I also had difficulties installing security update 2021-005 and the subsequent 2021-006 for my iMac10,1 with dosdude1’s Catalina. That’s the reason for moving across to OCLP. But unfortunately it does suffer this Displays preference side effect on both iMacs after applying the post-install volume patch for graphics acceleration.
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I used CatalinaOTAswufix to patch / update macOS Catalina to 19H1419 on my Late 2009 iMac i7 w/ Samsung SSD and 16GB RAM. It took a couple of tries with SilentKnight to get MRT updated, but I finally got the green checkmark for "no updates."
So, I have this issue now with iMessage where someone has sent me a video in iMessage that they shot on their iPhone and when I try and watch the video the screen immediately goes black and I'm back at the Catalina sign in screen. I've tried re-applying the patches and double checking that SIP is disabled.
Again, I've got a Late 2009 iMac i7 with stock video card / non-Metal.
Everything is fine, so long as I don't launch iMessage. As soon as I launch it, BOOM! I get the black screen and I'm back at the Catalina sign in prompt.
Does anyone have any ideas on what to do?
Again, I've got a Late 2009 iMac i7 with stock video card / non-Metal.
Everything is fine, so long as I don't launch iMessage. As soon as I launch it, BOOM! I get the black screen and I'm back at the Catalina sign in prompt.
Does anyone have any ideas on what to do?
Assuming you are still on dosdude1-Catalina, for which I've used for more than 6 months on my late-2009 iMac (see my signature). There is nothing wrong with that patch and everything works including most non-metal graphics cards except for HD5xxx & HD6xxx.
Please use signature to publish your system configuration.
I used OCLP to take my iMac 12,2 to 19H1419. I used moderate spoofing to get it to install. I have minimal spoofing and am getting the Big Sur red dot and its annoying. I'm going to change the SMBIOS to try to make it go away.
Just wonder if you can open the Displays preference pane in System Preferences?
No doesn't work for me either, and changing the SMBIOS was a bad idea, it was very unstable. I went back to minimal and just used the old terminal commands to kill the red dot.
Thanks, Jack. Changing the SMBIOS to moderate is necessary to install Catalina. Once installed, you can change back to minimal. I changed spoof model to iMac13,1 for iMac10,1 & iMac13,2 for iMac12,2, which is the minimal for running Catalina and preventing Big Sur upgrade showing up.
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Asked earlier this week, but trying a second time.
I am familiar with Dosdude's macOS Catalina Patcher and how to update to the latest version of 10.15.7 (19H1419). Works great on the internal SSD of my 2010 MacBook Air.
I also have a USB stick with a bootable Catalina. Also done with Dosdude's Patcher. Works fine on the initial release of 10.15.7. But after installing the security updates I am stuck on the Apple logo when I boot Catalina from the USB stick.
Does anyone know why it works fine on my internal SSD and not on the USB stick? And how to solve it?
I am familiar with Dosdude's macOS Catalina Patcher and how to update to the latest version of 10.15.7 (19H1419). Works great on the internal SSD of my 2010 MacBook Air.
I also have a USB stick with a bootable Catalina. Also done with Dosdude's Patcher. Works fine on the initial release of 10.15.7. But after installing the security updates I am stuck on the Apple logo when I boot Catalina from the USB stick.
Does anyone know why it works fine on my internal SSD and not on the USB stick? And how to solve it?