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opencore

  1. A

    Can't start up Mac from opencore boot menu

    Hello, first time posting here. I have a MacBook pro from a couple of years ago, the Mac got jailbroken and i accidentally tried updating the software to the newest version not knowing i wasn't supposed to do that. This caused it to stop working, everytime I try too start it the "OpenCore boot...
  2. J

    opencore unsupported configuration detected

    Hey, I just wanted to upgrade my 12.1 iMac from High Sierra to Monterey or Ventura with the Open Core Legacy Patcher. But everytime I start the program I run into a kind of error saying that I'm booting from a false configuration. But in fact I´ve never run in on my system before. What can I do...
  3. KittyComputer

    MP 1,1-5,1 5,1 Monterey Limiting MacOS release with OC

    Hey all! I'm wondering if it's at all possible to convince my cMP 5,1 —running Martin Lo's OC build— that Monterey is the newest supported OS and only pull updates for that. In the troubleshooting section here, it's mentioned this might be accomplished by manually configure some bits in SIP...
    • KittyComputer
    • Thread
    • classic mac pro monterary opencore sip updates
    • Replies: 0
    • Forum: Mac Pro
  4. zerom

    MP 1,1-5,1 safest way to install w10 on opencore-d cMP5.1?

    hello, sorry to disturb. i know there are guides online about this, but i always end up fining os many different opinion about it I am confused. so, i have a cMP5.1, 12cores, currently on Mojave and OpenCore 0.9.1. (martin lo's) I would like to install win10 but I am afraid to brick my machine...
    • zerom
    • Thread
    • cmp opencore win10 macpro 2012 macpro 5.1 dual boot opencore
    • Replies: 35
    • Forum: Mac Pro
  5. G

    MP 1,1-5,1 cMP 5.1 2012 & Opencore Monterey issues

    Hope that someone can help with some issues I have with installing Monterey on my 5.1 from 2012. Using Opencore 0.6.2. - cannot complete installation on NVMe M.2 hdd on PCIe card in second (GPU is in the first) PCIe slot/lane. It goes for some time (progress bar showing) then reboots and...
    • Goran08
    • Thread
    • cmp 5.1 monterey nvme opencore
    • Replies: 6
    • Forum: Mac Pro
  6. WaffleMXM

    OpenCore Legacy Patcher: Ventura Crashing / Slow? iMac(2009&2015)

    Hello everyone, Has anyone experienced an issue installing Ventura with OpenCore? I’m using a Late 2015 iMac - after installing Ventura it boots but it looks as if it boots safe mode? The start button has a black background like in safe mode. If I try to press start at the hello screen - I...
    • WaffleMXM
    • Thread
    • imac opencore
    • Replies: 6
    • Forum: iMac
  7. RolfNoot

    MP 1,1-5,1 Open KickStart Project - kick new life to the cMP - polling interest

    I just woke this mornig with an idea, like to poll the interest for an opensource project for solving NVRAM / BootROM headaches and accelerate BootROM / UEFI / GPU Rom / GOP developments. There are so many users around doing critical NVRAM / GPU card flashing which costs a lot of time while...
    • RolfNoot
    • Thread
    • bootrom gop gpu little frank nvram opencore spi-rom uefi
    • Replies: 103
    • Forum: Mac Pro
  8. 0xCUBE

    macOS 13 Ventura on Unsupported Macs Thread

    This thread will be dedicated to the discussion of running macOS 13.0 on Unsupported Macs Welcome to the new macOS Ventura on Unsupported Macs thread! We're eagerly awaiting for all our community developers and enthusiasts to test out the new version of macOS. Please play it by ear and only...
    • 0xCUBE
    • Thread
    • drives not booting hackintosh installing macos ventura macbookair macos macos ventura mbp 9.2 13 oclp open core legacy patcher opencore opencorelegacypatcher unsupported hardware unsupported mac ventura ventura 13.3.1
    • Replies: 8,337
    • Forum: macOS Ventura (13)
  9. M

    MP 1,1-5,1 Lost my ifu partition with opencore

    Hi, i have a mac pro 5.1 from 2010 with dual x5690, 96gb of memory, bootroom uploaded to the latest version 144.0.0.0, vega 64 with pixlas mode, everything works fine since always, i have two nvme disks with adapter on pcie, one with mojave and the other with bigsur, I am currently working on...
  10. E

    MP 1,1-5,1 Macpro not working with Rx570

    Hello, noob here. I bought a Mac Pro 5.1 and tried to install monterey with the original card and opencore. Everything went fine. Than i replace the card with a Sapphire rx570 nitro 8gb and Monterey became very slow. Is there something i can do to solve this? I tried to mess with the "non metal"...
    • Erdna
    • Thread
    • macpro 5.1 monterey opencore rx570 sapphire
    • Replies: 8
    • Forum: Mac Pro
  11. H

    I screwed up trying to revert from Opencore

    I found my 2009 Mac mini in a box and thought I'd experiment with it. I used Opencore Legacy Patcher to install Monterrey and it worked. However, Wifi didn't work as expected and I also had some graphic issues. So I thought that I'd best revert to stock. I fetched a El Capitan bootable USB...
  12. D

    MP 1,1-5,1 OpenCore Legacy Patcher Help

    Hello Everyone Current Mac Pro macos Mojave 10.14.6 Mac pro 4,1 flashed to 5,1 (dual cpu) 48gb ram rx 580 8gb sapphire samsung nvme 1tb 970 (boot drive) I'm currently using the OpenCore Legacy Patcher 0.6.1 so I can install monterey. I'm currently getting this message. Following this...
    • dalegribble
    • Thread
    • opencore opencore filenotfound
    • Replies: 33
    • Forum: Mac Pro
  13. Z

    MP 1,1-5,1 how to remove open core 0.5.9 from mohave on mp 5.1

    I think you might not seen my post. So im making a new thread. Can you help me guys? i have mohave 5.1 mp and had to come back to my flashed radeon 7950 because my rx580 died. Now how to remove open core from the efi patition? Just deleting oc and boot from efi part is enough? do i have to...
    • zgagato
    • Thread
    • cmp 5.1 opencore
    • Replies: 1
    • Forum: Mac Pro
  14. M

    “Your computer shut down..” error after opencore mac os monterey install on clean ssd on imac mid 2011

    I recently tried to do a bootable opencore Monterey install on a fresh ssd installed on my iMac mid 2011. It got all the way to the end of the install but on the final restart I got the message “your computer shut down because of a problem…” and will not go further than that. I did all the...
  15. B

    MP 1,1-5,1 MAC PRO 5.1 RADEON VII NO VIDEO OUTPUT!!

    Hello everyone! I need some help with my cMP 5.1 Bought a 2nd hand XFX Radeon VII, saw it working on the computer it was pulled off from. Got home, replaced my RX 590 NITRO+ SE with the Radeon VII and got no boot screen on any output port on the GPU. Plugged back my 590 and everything works as...
    • Bob Lodge
    • Thread
    • mac pro 5.1 opencore radeon vii
    • Replies: 91
    • Forum: Mac Pro
  16. B

    MP 1,1-5,1 Install Windows 10 next to Monterey w/ OCLP, Mac Pro 5,1

    Install Windows 10 next to Monterey w/ OCLP, Mac Pro 5,1 I'll try to be to the point: I have a Mac Pro 5,1 with an RX 6600XT (patched w/ friends PC for boot screen), dual 1TB NVMEs on a single PCIe, one for Monterey and one for extra space. I also have a 1TB SATA disk that I wanted to install...
    • BigWeaMan
    • Thread
    • 6600xt mac pro 5.1 monterey opencore opencore legacy windows
    • Replies: 0
    • Forum: Mac Pro
  17. M

    White screen Macbook pro 2011 after OpenCore

    Hello everyone, I bought a used macbook pro 2011 for cheep and wanted to remove opencore with Moterey. After putting an old ssd the mac ran windows 10 (as i forgot it was not empty) and with the hdd the old owner gave me, the mac is able to run Monterey. It has been a few days now I was trying...
    • mrpasquale970
    • Thread
    • gpu acceleration macbookpro2011 opencore
    • Replies: 0
    • Forum: MacBook
  18. M

    Auto update to Ventura broke opencore legacy patcher monterey

    Good morning.. Macbook Pro Mid 2012, 1TB SSD and 16GB Ram was working wonderfully with open core patcher Monterey.. So.. I stupidly allowed the mac update to Ventura complete, thinking that it will start and I will simply patch it on boot.. Well it no longer boots. Is there a way to recover...
  19. ZNDK

    OpenCore on MacBook Pro 2012

    I installed Monterery using the OpenCore Legacy Patcher 5.1 on a MacBook Pro 2012 (non-retina) that had served its original purpose. I used that Mac (macOS 12.6.1) for a few days and was presented with the macOS 12.6.1 software update again. I applied that updater with some doubts, and the user...
    • ZNDK
    • Thread
    • 2012 non-retina mbp macbook pro 2012 monterery opencore opencore legacy patcher
    • Replies: 6
    • Forum: macOS Monterey (12)
  20. S

    MP 1,1-5,1 cMP 5,1 Opencore Mojave installed, Sapphire Pulse RX 580 but no boot picker

    Hey guys, I'm in the process of doing some upgrades to my 5,1 cMP. I installed a Sapphire Pulse RX 580 GPU 8GB, firmware updated to 144.0.0.0, clean installed Mojave, and installed Opencore using Martin Lo's package. The GPU works fine but doesn't give me the boot picker. Did some reading on...
    • sgentile92
    • Thread
    • no boot picker opencore rx 580
    • Replies: 4
    • Forum: Mac Pro
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