opencore

Hi all, I tried to install Big Sur on my MacPro 3.1 with OpenCore Patcher (version 0.0.22) on a USB stick. I got till the point where I could see the bootEFI logo and after that loading the Big Sur installer. But then it hangs while loading the installer. I reinstalled the EFI with different...

Hi all, Just got finished flashing my Mac Pro 5,1 and following all the directions in large MyBootMgr thread. Awesome, so thank you for that! FYI I'm running the 067a release so I don't know if thats the latest or not. Everything works great except neither Innie, nor ACHI_ThirdParty_SATA work...

Hi all, I currently have a Mac Pro 7,1 running Big Sur and Windows 10 on separate drives. I use an RTX 2060 GPU on the Windows side for the NVENC video encoder when live streaming. Unfortunately, while this is okay in macOS, it is breaking my Sleep/Wake functionality. I would like to hide it...

I have this problem that I'm not getting bootscreen og boot picker on my Mac Pro 5.1 (2010) When I boot I have black screen for about 20 sec the the monitor gets signal and turn on with the Mac login screen. When I'm in Mojave I see the last sec of the boot progress bar and the the Mac login...

The OC plistlib generator is a tool allowing you to automate OC upgrades, with no (or minimal) configuration changes. The setup.py example settings are based on @cdf's OpenCore on the Mac Pro guide and you can customize everything to your likings. Why I created this tool? Once you are familiar...

Showpicker not shows on MSI RX580 Gaming 8GB GPU, however GT 680 was shows shows picker mode,Rx 580 frame buffer detected as Radeon Frame buffer ,after installing Radeon boost Kext enable H264 & HEVC ,Performance not the best expected for RX580 card with MacPro 5.1 with dual tray 3Ghz processor...

I was encouraged to share my experience with installing macOS Big Sur on two of my cMPs as I wasn't able to find anything already prescribed for those like me who use the RefindPlus/OpenCore Chainloader, and hopefully it covers off some useful information for others attempting the same. I have...

Hello, I installed OpenCore on a 2010 Mac pro and I can't run any virtualisation apps like vmware fusion and virtualbox. I remove and reinstall apps, but no change. In the preferences of confidentiality I have no request also of authorization. I don't know if it's Opencore or Big Sur, to tell...

Can somebody explain me how start with this? i want to do a clean installation, Mac os Catalina and Windows 10 (i bougth 4 ssd 2.5 -> 1-1-1-2 TB). The idea is install Catalina (ssd 1tb) and Windows 10 (ssd 1tb) to make dual boot to change operation system work reassons. But also i would like...

Hi, I originally installed Catalina via Dosdude1's Catalina Patcher. It worked fine and all but I realized hardware acceleration for H.264 and HEVC wasn't working and updating to the latest version of MacOS was a chore. So I installed Opencore on my computer, those two previous problems were...

Hi all. I realize this is a lengthy post but I wanted to provide all the info possible, and appreciate all the assistance. I have an upgraded MP5,1 with dual core x5690 procs, 64GB of 1333mhz RAM, multiple SATA drives and a PCIe SSD (not NVME) as the boot drive. The Pixlas mod has been done and...

Hi All, I am using an iMac 2011 with K1100M graphics card and in High Sierra, Mini Display Port to my 4k@60hz external display works fine. After upgrading to Catalina using the Dosdude1's patch, all works fine however Mini Display Port only outputs HDMI signal(5v, 4k@30hz) but NO Display Port...

I have MacPro 4.1, and my gt120 is not working (black screen) (it looks like capacitors leaked - maybe I can replace them...) I have RX590 (without efi bios) Can somebody provide me an opencore usb image? So I can try to boot with rx590? (and flash to 5.1) Thank you

Hi everyone hope all is well, I Need a bit of assistance,I have 2012 12 core Mac Pro 5.1 running MacOS Mojave,bootrom 144.0.0.0,1tb ssd &6tb hard drive. I’m looking into opencore my mac so I can use my titan ridge tb3 card but I’m trying to avoid an mess ups, is there any advice on doing this...

This is a guide to setting MyBootMgr up for configuring and installing RefindPlus (with or without OpenCore) to multiboot Classic Mac Pros (3,1 to 5,1) as well as equivalent Xserve (2,1 and 3,1). With OpenCore present, the setup involves chain loading Mac OS from system optimised OpenCore...

I have a late 2013 Mac Pro. When I bough it I thought was great for video editing and streaming but after a while I discover that H264 and hardware acceleration is not working on this machine (!). I was following the thread about OpenCore but seems for Mac 5,1 and I'm a little worried it could...

I am fairly new to the cMP scene and have been considering upgrading my mostly stock machine. I'd love to be able to set up Catalina with all the bells and whistles via OpenCore as shown here, but am not experienced enough with OpenCore and cMPs in general to figure it out myself. Thanks, CL

I've just installed a Sabrent 2TB NVMe drive using the kryoM.2 evo PCIe adapter. The install was easy and the drive is now visible as a PCI-Express External drive. My machine is a mid 2010 5.1 cMP running macos 10.14.6. My intention is to use this new drive to act as the system disk...