Why can't my M1 Macbook Pro run Tahoe?

neuroanatomist wrote:

For future reference, as leroydouglas pointed out in another thread, Command-R will refresh the Software Update screen in System Settings. I was only seeing 15.7, but after Command-R I saw both 26 and 15.7 offered. Tahoe is installing as I type this, without needing to install 15.7.

Thanks for the tip. I never would have known that … and now that I've typed Command-R, Software Update is offering me both the Sequoia 15.7 update and the Tahoe 26 upgrade!

Allan Jones wrote:

I had to install 15.7 before Tahoe showed as available. Its only been out about 30 minutes so I've learned to expect little foibles like that early on.

For future reference, as leroydouglas pointed out in another thread, Command-R will refresh the Software Update screen in System Settings. I was only seeing 15.7, but after Command-R I saw both 26 and 15.7 offered. Tahoe is installing as I type this, without needing to install 15.7.

Allan Jones wrote:

I had to install 15.7 before Tahoe showed as available. Its only been out about 30 minutes so I've learned to expect little foibles like that early on.

I'm on 15.6, and Software Update is telling me that 15.6.1 is available. Guess I'll have to install it before Software Update will offer 15.7 …

TheLiaBee wrote:

So my MacBook shows the MacOS26 but gives an error message every time I attempt to download it.. Anyone know why maybe??

It's hard to read the text in that tiny picture, but it looks like the dreaded "Failed to personalize" error.

This might have many causes. In the worst case, it can be because a previous firmware update failed, in which case the only fix may be to revive or restore the Mac with the aid of another Mac running Apple Configurator 2.

TidBITS – Solving the macOS Installer’s “Failed to Personalize” Error with New Firmware

I had to install 15.7 before Tahoe showed as available. Its only been out about 30 minutes so I've learned to expect little foibles like that early on.

Nope, in System Settings > General > Software Update, press Command-R to refresh the offering.

Nope, just try again later and you'll see it at some point.

It can run Tahoe. Who told you otherwise?

Note that today is the rollout day for Tahoe. Apple may be staggering the release to try to prevent overloads of their servers. So if Software Update isn't offering you Tahoe yet, it may be that Apple just hasn't gotten around to releasing it for your area of the world. Wait a few hours, or a day, then try again.

Happened to me, as well.

In System Settings > General > Software update, press Command-R (thanks again leroydouglas) and you should be offered the macOS 26 Tahoe update. If not immediately, try again in an hour or so.

My download of Tahoe is proceeding (expect it to take a while, their servers get slammed on launch days; I just watched my download jump from 3 minutes remaining to 30 minutes remaining).

MoFoMedia wrote:

Still giving me 15.7 installed that and now, nothing. Will try again tomorrow. Was jsut afraid I had a weird model that missed the update or something

In Settings>General>Software update

Command R will reload that checking activity. Rinse and repeat until it presents itself.

The Apple upgrade tends to rollout across the globe...

FWIW, I run Tahoe on an M1 MBA with 16GB with no issue whatever. My guess is you have some third-party software that isn't fully Tahoe compatible.

OS - macOS Tahoe - Apple says that Tahoe is compatible with MacBook Pro with Apple Silicon (2020 and later). Your M1 MacBook Pro has Apple Silicon and came out in 2020. So have a little patience, and wait for the Tahoe update to show up.

FYI, my Mac Studio is not (yet) offering the Tahoe update, either. I'm not worried. I know that Tahoe will show up sooner or later.

I’m using a MacBook Pro M1 Pro with 16GB of RAM. After updating to macOS Tahoe, my MacBook became super slow and the RAM was completely used up — even just opening Adobe Premiere caused a “force close” due to memory overload. I eventually downgraded to macOS Sequoia, and everything runs smoothly again with no RAM issues. In my opinion, the Tahoe interface feels too heavy even for M4-level specs.

I run Tahoe on an M1 MBA.

What makes you think you can't? Unless you don't have enough disk space to download and install it, you can.