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opencore

  1. B S Magnet

    Other ActionRetro does the noble work of promoting the power of OCLP by running Sonoma on an A1260/MBP4,1

    [This post was supposed to go up several days ago.] I’m sure a few of you have already seen the latest by Action Retro: a side-by-side of OCLP running Sonoma on an A1260 (running half of its maximum RAM, and unclear if it was running a spinner or SSD), next to an M1 Max MacBook Pro with 64GB...
  2. U

    Can I remove Open Core?

    I've been trying out newer OSs on different machines using my High Sierra daily driver as the machine to build the install disks. Somehow I managed to install opencore for my MacBook Air on the boot disk on my daily driver iMac 2011. Doesn't impact the system running but does complain that I...
  3. U

    OpenCore install on existing partition?

    I have a disk with multiple partitions on it with both Big Sur and Monterey install that I've been using to test out different installs on different hardware. Is there a way to use OpenCore patcher on those disks without having the tool erase all of the partitions on the disk? (e.g. have it...
  4. T

    MP 1,1-5,1 Corrupted opencore on cMP5.1 ?

    Hei! I purchased a used cMP5.1 (2010) with Vega64, OpenCore and BigSur on it. Both OC and BS are installed on an NVMe drive (currently the sole storage on it). It is booting and running fine. I installed the latest Hackintool and found that it autodetects Clover but shows version 0 and when I...
  5. A

    Opencore legacy issue on 15" 2011 A1286 - Chinese battery issue!

    HI all, Hoping someone can help with this issue that has had me puzzled for over a year now, I have upgraded dozens and dozens of these 2011 - A1286 macs What I do.. 1, Disable onboard AMD graphics chip 2. Upgrade ram to 8gb 3. Upgrade HD to SSD 4. Install latest OS with Opencore. The problem...
  6. flaubert

    MP 1,1-5,1 Audio recording problem: intermittent repeated sound fragments

    Hi, one of my main uses for my Mac Pro is preparing radio shows, which involves voice announcing between tracks. I've noticed that I occasionally have a defect in my voice recordings: when I play it back I'll sometimes find a place in the recording where a fragment of sound repeats and replaces...
  7. Black Ninja Original

    MP 1,1-5,1 MacPro 5.1, Opencore and best macOS 2023 for audio

    Hi! I have a MacPro 5.1, macOS Mojave, 96GB RAM, Kyrom.2 aquacomputer with Samsung 970 EVO SSD, Allegro Pro USB3.2 PCI Card and NVIDIA Quadro K5000 for Mac. I work with music production in Logic Pro and use tons of plugins (Waves, Izotope, Fabfilter, Native Instruments, IK Multimedia and...
  8. Q

    Updated MBP2011 opencore legacy patcher and stuck in recovery mode

    i updated my patched MBP 2011 on ventura to the latest OC (version 0.6.8) and now my back does not boot up it keeps going into recovery mode. i tried to reset NVRAM but got not luck. can anyone tell me maybe i can revert OC changes to default through Terminal app which i can open in Recovery...
  9. 5

    Mac Pro 5,1 with Opencore, Windows 11 installer couldn’t create a new partition or locate an existing one

    I’m trying to get Windows 11 installed on my cMP running Monterey with Martin Lo’s OC and I’m stuck with an error saying ”Windows 11 installer couldn’t create a new partition or locate an existing one” when I’m choosing the drive to install to. I’ve tried formatting the drive but it won’t fix...
  10. I

    macOS Ventura 13.4.1 fail with OCLP

    I recently bought an iMac Late 2013 that supports up to Catalina, but with OCLP I updated it to Ventura 13.4.1, the system was installed and the patches well but then I turned it off and when I turned it back on the system load well but when the screen of the choose user when I chose a user the...
  11. 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...
  12. 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...
  13. 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...
  14. 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...
  15. 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...
  16. 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...
  17. 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...
  18. 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...
  19. 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...
  20. 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"...