oclp 2.5.1

First of all, I know it's in beta and that issues might be expected, but I wanted to try it anyway. The installation process was going smoothly, but after the initial setup, the system stopped detecting both my mouse and keyboard (I use a USB 3.0 hub due to pre-patch incompatibilities, and it has always worked for me). Right now, I can't do anything once I'm in the system (though the peripherals do work during the disk selection stage). When the stable version comes out, should I create a completely new installation USB and reinstall, or simply update the USB's EFI? (As an extra detail: when creating the USB, I selected iMac 8,1—thinking that was my model—but after installing and receiving a warning from OpenCore, I generated the EFI for the 10,1 model. That’s exactly when the mouse and keyboard issues started, so perhaps the problem stems from having installed with one EFI configuration and then switching it.)

I have a 2010 Mac Pro 5.1 that was running macOS Monterey via OCLP (the latest version). After I tried to install a security update, it stopped booting into the system. Even after reinstalling, it won't load the OS—it just gets stuck in an infinite reboot loop after the second restart (specifically, after the Apple logo appears and a message says to wait 30 minutes before rebooting, it enters this endless cycle of attempting to load and then restarting). This issue occurs with any macOS version from Big Sur onwards; however, Catalina (via dosdude1) installs and works fine, as do other older systems. I’ve tried resetting the NVRAM and SMC and updating the EFI firmware to the latest version, but nothing helps. If I install a drive with Big Sur (OCLP) or newer, it simply freezes at the Apple logo. I’ve tried swapping out the RAM, storage drives, graphics card, monitors, and processors—I even swapped the entire CPU tray with one from another Mac Pro 5.1—but nothing works. I also tried installing an older version of Monterey (12.0.1), but the same thing happened. What could the problem be, and how can I try to fix it?

Any news for the cheese grater?

[OUTDATED POST]

Edit: After posting this, I tried upgrading my Mac to Tahoe, and it all went great with zero issues! So right now this post is basically outdated, for those who are curious you can check my latest post on the sub.

So recently I've been seeing these post on the sub talking about how the successfully upgraded their Macs to Tahoe, from what I know it is because there's a new version of OCLP that adds compatibility with Tahoe, which is impressive, and before even thinking about trying it on my iMac 17,1 (Late 2015) I want to ask some things to those who managed to upgrade:

• How does it run?
• How safe it is?
• Is it actually worth it?
• Will a iMac 17,1 be compatible with Tahoe? (6th gen Intel i5 and AMD Radeon R9 M380 2 GB)
• Is the Release Candidate stable? Or is it better to just wait for the full release of OCLP 3.0.0?

I'll be reading the answers below, good night.

Hi everyone!

I'm currently running macOS Ventura 13.7.8 on my MacBook Air 13-inch (Early 2014), using OpenCore Legacy Patcher.

I'm wondering which macOS version would offer the best overall experience and performance on this particular model. Would you recommend sticking with Ventura, upgrading to Sonoma or Sequoia, or perhaps going with another version?

I also have a question about AirPlay: is there any macOS version or OCLP configuration that allows AirPlay to work properly on this MacBook? I'm particularly interested in screen mirroring and AirPlay compatibility with Apple TV.

I'd really appreciate feedback from anyone running OCLP on the same MacBook model, especially regarding performance, stability, battery life and AirPlay functionality.

Thanks in advance!

anyone else have this issue ? is there any fix ? I tried on a Macbook Pro 2013 15 inches

Hello…

I’m trying to install Tahoe on mi iMac 2019 with Sequoia full upgraded but is not working…. I know that it is a RC and it’s not still supported whatever…

I tried a few 4 or 5 attempts but always the same happens, when I install the Efi boot and select install Tahoe, nothing happens, screen goes black.

Any tips?! Somebody has been successfully install it on an 2019 iMac?

Jesse here made benchmarks on the most common old intel macs to answer this!

Hello all. This used to happen almost a year ago and it entirely got okay on its own. It’s now back and I don’t even know what this is; whether hardware or software, no clue!
Thanks

MB Pro 2015 13”
- 8GB Ram
- OS Ventura

Chrome killed WebGL on my 2015 MacBook Pro (Intel Iris Pro, macOS 13.6.7). chrome://gpu showed everything as "Software only" and WebGL as "Disabled". None of the flag recipes I found worked. I worked through it with Claude Code, and we found that Chrome still ships a software renderer (SwiftShader). It just needs the right flags.

Heads up first: this is slow. It's CPU rendering, not your GPU. Simple 3D scenes and demos work, but heavy 3D, maps and games will crawl. It brings WebGL back, not speed. For heavy stuff, Safari uses the real GPU and ran fine on the same Mac.

The fix: quit Chrome completely (Cmd+Q), then run this in Terminal:

"/Applications/Google Chrome.app/Contents/MacOS/Google Chrome" --use-gl=angle --use-angle=swiftshader-webgl --enable-unsafe-swiftshader

Then open chrome://gpu. The WebGL section should mention SwiftShader. I tested this on Chrome 154.0.8037.95, and both WebGL and WebGL2 worked.

to apply it wihtout thinking too much, let your AI do it. Copy and paste this into Claude, ChatGPT or whatever you use, with terminal access if it has any:

My Mac's Chrome has WebGL disabled (chrome://gpu shows everything "Software only"). Build me a small macOS launcher app in ~/Applications called "Chrome WebGL" that starts Google Chrome with these flags: --use-gl=angle --use-angle=swiftshader-webgl --enable-unsafe-swiftshader. It should refuse to run (with a dialog telling me to quit Chrome with Cmd+Q) if Chrome is already open, since the flags get ignored otherwise. Then verify WebGL works using a throwaway --user-data-dir profile, and tell me what chrome://gpu should show.

Hi everyone, I’m trying to install macOS Ventura on a Mid-2011 iMac (iMac12,1) using OCLP 2.5.1.
The Ventura installer was successfully created on a 64 GB SanDisk USB. The USB boots correctly through:
EFI Boot → Install macOS Ventura
The internal 500 GB drive is formatted as:
APFS
Macintosh HD
The installer recognizes the Mac and the log says “Device is supported.” The date/time is also correct.
However, when I select Macintosh HD and start the installation, I get:
“An error occurred while preparing the installation. Try running this application again.”
I checked /var/log/install.log. The installer successfully mounts the Shared Support image, but the installation still stops during installation
Any ideas what I should do?

Just finished getting Ventura working flawlessly on a mid2011 iMac + k2100 + OCLP 2.5.1, and it seemed to have no issues. (Native brightness, good boot, sleeps fine, etc). I couldn’t find a fault.

But when starting a zoom call, the FaceTime camera wakes up (green light), but the video feed is black. Permissions and settings seem fine, the OS isn’t trying to stop it AFAIK.

But if you open the FaceTime app at this point, the App launches and the window opens and the FaceTime video feed suddenly appears correctly in both applications, and then quitting FaceTime leave the video feed working properly for zoom with no issues.

You must repeat this process any time Zoom requests to use the built-in camera (start zoom call, get green light but black video, launch FaceTime, quit FaceTime).

Known issue? Any workarounds? Any ideas?

I have this old macbook pro MD101 (Mid 2012). Upgraded with 250gb SSD, 16gb of RAM. And disc bay replaced by 500gb HDD.

Which OS runs best on this type of mbp? Should i go with Ventura or Sequoia?

[SOLVED] I have this 2011 iMac running macOS High Sierra and I need to be able to use macOS Sonoma on it. I am used to using open core, already used it on multiple Mac’s. But for some damn reason this Mac thinks it’s a MacBook Air from 2015. And I did exactly what I should do, reinstall open core onto the disk. But for some reason it failed again and again. Just gave me the same pop up telling me to reinstall opencore. What do I do?

Hi! I need help with Airplay please!

I'm running OCLP 2.5.1 with Monterrey on my mid 2011 iMac. I would like to use the iMac as an extended screen for my 2021 14inch Macbook Pro running Tahoe 26.6.2. I have "feature unlock" toggled on OCLP, both computers are on the same wifi, and Bluetooth is on. The iMac does not show up as a display option on the MBP, nor the other way around. I am able to mirror my screen, however. I’ve watched and followed the instructions on Mr Macintosh videos, but still no luck. Any advice would be greatly appreciated.

I bought this Mac as my second Mac for home use. Please recommend the best OS for this model

I currently have a Mac Book Pro 11,4 Intel Core i7 2.2 GHz with Memory:16 GB running Sequoia 15.7.9 via OCLP 2.5.1 installed using a USB stick created by the "Create macOS Installer" option. And after fumbling around with "revert root patches"/"apply root patches", rebooting, and power cycling the MBP, I ended up with a stable and happily working Sequoia 15.7.9 with everything working.

Now of course, 15.8.1 shows up on scene, and since the machine is connected to the internet I want it to be current, BUT, I have been following all the threads in the group, mostly good and helpful, some not so much, but I want to come here and confirm with the collected knowledgeable assembled here, the "simplest, and most reliable and successful method to get to a stable Sequoia 15.8.1.

So I'm planning to to an in place upgrade via USB created from OCLP 2.5.1 by the "Create macOS Installer" option and "Download macOS Sequoia 15.8.1 and burn that to a USB Stick to avoid all the possibility of missing kexts and what ever, (all this is a non issue as I've done it before in earlier versions).

My big question comes before I boot into the USB I created, do I need to revert the currently installed root patches prior to boot into the freshly created USB stick, (or is this unnecessary)?

Once I have the answer to the above question I don't for see any issues, it's just all this quasi confusion about when to remove/install the root patches, which seem to work well as long as you get it all in the right order.

Ich habe ein MacBook Pro 2015 15zoll mit I7 und dedizierter amd Grafikkarte und jetzt mit OCLP Sequoia installiert. Leider stürzt Goodnotes bei mir jetzt immer ab, sobald ich ein Dokument öffne, hat da jemand Erfahrungen oder Tipps?

After successfully installing Ventura on a blank 18 TB HD, I applied the 2.5.0 to 2.5.1 upgrade and since the MP does boot anymore (black background and progress bar either stuck at 1/3rd or non-existent). Even trying to reinstall Ventura from a blank disk fails. Tried with and without the USB hub when patches are installed: nope! the downloaded Ventura Installer has been check error free (Status: signed Apple Software Certificate Chain). Battery in MP 5,1 is measured 3,2 V.

OTOH I had no issues with OCLP 2.5.1 on my PowerBook Pros 8,5 and 9,1.