Can a 2011 MacBook Pro Run macOS Tahoe? (It Didn't Go As Planned)

A few days ago I woke up with a notification from Reddit, stating that a Release Candidate for

I immediately rushed into downloading the Tahoe update on my 2011 MacBook Pro that was running on ì BigSur, but that turned out into a massive mistake. Let's dive into!

Machine specs:

2011 MacBook Pro "13

• Dual Core Intel Core I5 2,3 GHz
• Intel HD Graphics 3000 512MB (no Metal API support) 
• 8 GB 1600 MHz DDR3 RAM Kingston
• 512GB SATA SSD Kingston

As I previously stated, my MacBook was still on BigSur, so I opened Settings and immediately downloaded MacOS Tahoe 26.7.1

BigSur downloading Tahoe

 

It took about two hours for it to complete the update. After the first boot I immediately noticed that...

Something was wrong...very wrong.

Unpatched Tahoe with no way to patch

 

I couldn't even type in my password or move the mouse cursor. Not even USB ones worked

It turns out that I forgot to apply the OCLP 3.0 RC Patches before performing the update, leaving me with a machine without USB / Keyboard / Mouse and Video drivers, not even letting me log in to patch it after.

Since this is the only Mac that I own, I had no way to make an OCLP USB with the patched EFI to boot from, and fix the issue. Because I did not have any important data on the MacBook, I decided to start from scratch  by making a bootable High Sierra USB from my Windows computer. Well, let's say that "I decided", but remember that this was my only option after the mistake.

High Sierra failing to format an USB drive (lol)

 

 I have then proceeded by downloading the Tahoe Installer from OCLP on High Sierra. 

High Sierra downloading Tahoe

After waiting for it to download, the program warned me that High Sierra was too old to make a Tahoe USB. 

Since OCLP 3.0 RC had fixed the blur glitches issue on non Metal Macs (and that it was what prevented me from using anything newer than Ventura on this machine), I decided to make a Sequoia USB.

Sequoia installation went smooth. After root patching it with OCLP, It ran better than it did on Big Sur. (which surprised me a lot, and also made me think about the crazy work developers have done)

Still, I wanted to try Tahoe on it, and so with the right patched EFI installed, I proceeded with Tahoe update. 

Sequoia downloading Tahoe

It took about 20 minutes only this time, but first boot got stuck twice. The machine successfully booted after a few forced power reboots. 

The OOBE was so laggy that it took me 15 minutes to complete, but after reaching the desktop (and after getting stuck again, requiring me another forced reboot) and post patching, the computer was...ehw...pretty much unusable. 

(photo taken before Post Patching)

There wasn't a single thing that ran okish on it. The app drawer was so slow and laggy that it was really hurting my eyes, same when dragging windows and opening menus. Sometimes inputs stuttered as well making it difficult to actually use. Fans were spinning at nearly max pretty much always and nothing was running at more than 15 FPS, sometimes even visibly less than 10.

After a day of messing around with it, I decided to re install Sequoia. That made the machine nice and usable again. 

The MacBook now on Sequoia

 

I really cannot find something that prevents me from using the machine on Sequoia. That's pretty impressive if you think that this Mac is 15 years old and that it can run such a new OS so well.

That's all folks!