opencore

So i have a 2012 5.1 Macpro with an AMD RX 580 8gb Graphics card, i built 3 ssd boot drives that have been successfully booting OS Monterey for a couple of months, the day after loggin in to one of these drives i discover the boot is frozen right at the beginning of the load screen with the...

This thread will be dedicated to the discussion of running macOS 14.0 on unsupported Macs. At the time of writing, we are waiting for Apple to send out macOS 14 Developer Beta 1. It is currently unknown whether or not Apple will release a publicly-downloadable InstallAssistant. We will be...

Installed Monterey on my MacPro 5.1 GPU GeForce 980Ti All runs fine, but with some graphics glitches in OS X transprency. Sadly After Effcts and Premiere 2020 not supporting GPU and crashing when editing. Now I'm back to High Sierra and have the same problem now on it. Previously all was fine...

The first time(first step) the apple mark progress bar is displayed abnormally, the apple mark itself seems to be in the normal position, but the progress bar is displayed at a much lower position. In this state, the progress bar stops at around 4/5 and does not move forward from there. Recovery...

Hi folk. Newb here. So, I triple boot this iMac, setup like this: /dev/disk0 (internal, physical): #: TYPE NAME SIZE IDENTIFIER 0: GUID_partition_scheme *1.0 TB disk0 1: EFI ⁨EFI⁩...

Hello All, I am very happy with My Mac Pro 4,1->5,1, I am using Martin Lo's opencore package, but every time I try to upgrade to a new version of the macOS, all fail, can not direct upgrade, I have to reinstall to a new SSD then clone it from the old Mac fo all app that I was installed, I saw...

Hello everyone, With the help of the MacRumors forum I have upgraded my 2017 27'' iMac that I use everyday for work and anything else for the last year. It has a 7600k processor, 32GB of RAM, a brand-new 1TB SSD and it is running Sonoma with the help of the open core legacy patcher . I also...

I’m installing Sonoma on a late 2013 iMac everything goes fantastic. Just up to the point where I try to install the installer on l the brand- new, extended Journaled external SanDisk Pro SSD. it tells me it’s locked. So I go out make sure it’s unlocked go back again and find out that it’s...

After having finally succeeded in installing Monterey under OC's martin lo V0.9.7, and installing the new wifi/bluetooth card, everything works well under BigSur, the wifi displays the new standard (802.11 a/b/g/n/ac) and the bluetooth standard 4.2. I applied the changes requested by martin lo...

I've BigSur on an ssd on a pcie slot, and Monterey newly installed in another, I've installed Monterey after turning ON the VMM flag and SMBIOS spoofing OFF, but when it finished, and reset the two tweaks to default to get full acceleration as recommended by Marin Lo, Monterey can't boot, it...

How to update Catalina Machine Support Video Card Support 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 without acceleration, GeForce 3xx...

Summary: We discovered a serious bug: booting High Sierra without System Integrity Protection (csrutil disable) possibly corrupts another mounted (unsupported) APFS2* OS Preboot volume, even when on another drive. Consequently, the corrupted OS may appear as High Sierra and check for...

A few impressions post-install of OpenCore Monterey on Mac Pro 3,1. Perhaps it could help someone else out if stumbling upon similar issues. My plan/wish was to fully move both my Mac Pro 3,1 to (at least) Monterey. One of them acts like a test-bed to be able to identify what works and what...

I cannot get macOS to boot in recovery mode with OpenCore Legacy Patcher(1.2.0,1.2.1,1.3.0). I usually use OCLP to use Ventura, but when I installed Monterey to try it out, even Monterey could not boot in recovery mode with OCLP. I can boot in recovery mode with OpenCore, which I configured...

Hi, I have a Mac Pro 5,1 with a Titan Ridge 2.0. Trying to get Thunderbolt to work but I'm new to this. Can anyone help with a step by step? Here's what I have and know: Mac Pro 5,1 running Catalina. 32Gb Ram, RX580 Graphics and a Titan Ridge 2.0. - The TR has a jumper between pins 3 and 5...

I have 2 ghost drives that only show up in the Open Core option-boot screen, and I want to repair whatever is causing them. If I select them to boot, one loops back to the same screen almost immediately, and the other loops back as soon as you let go of the option key. The two with weird names...

Installed OCLP 1.2.1 on my Mac, but now it's stuck in a boot loop. Tried resetting PRAM and creating a new Open Core build on a USB, but no luck. Don't want to use internet recovery and can't make a macOS installer due to limited USB space. Need help without wiping the system. Any ideas? Upon...

Hello everyone. I have an old MacPro 4.1 that I upgraded with an OWC Accelsior S Card and an attached Samsung 1TB SSD. I installed El Capitan on this SSD and it works fine. Now I would like to install Ventura via OpenCore Legacy Patcher on the same SSD while keeping the El Capitan installation...

Hi guys, Not sure whether this is an OpenCore issue or OpenCore Legacy Patcher issue, but I'm thinking it could probably be an OC issue. So I'm running Sonoma 14.1 on a MacBookPro11,4 with OCLP. Problem: the boot logo (Apple logo) is displayed BEFORE the boot picker, and not displayed when it...

Hi - Relative newby to Opencore Legacy Patcher, so maybe some obvious questions, but I am stuck! I have a Mac Pro 5,1 that has been running Mojave for years fine, with the MacVidCards bluetooth/wifi mod and a non-flashed RX560. Finally fed up with no updates and software stopping working, so...