Update to macOS Big Sur 11.1 from 11.0.1 fails

Same, safe mode makes no difference for me either. I also signed out of iCloud and back in to see if it was a credentials issue, all that did was give me another 138GB download as it restored the desktop and documents folders unnecessarily. Oh, it also removed the ability for my Apple Watch to unlock the iMac and I'm not doing it again just to have to download files for 12h.

I also discovered cloning the disk (can you tell I'm getting nervous?) doesn't work either, due to a 'broken seal'. This seems very beta to me right now.

I have the same issue. Macbook pro Late 2013. The installation stalls at 15 minutes even in safe mode. Big Sur for me has been a big pain in the ***. Downgrading to Catalina and hoping for the best. My computer was working flawlessly, now it is slow and has memory swaps all the time. Very annoying.d

I am in the same boat where nothing seems to be working around the failure noted. My MacBook Air downloaded and installed 11.1 without a hitch.

As has been noted I am not interested in doing a new install of Big Sur from the App Store.

Has anyone heard of Apple answering on this question?

Thanks sikeer666 . I’m afraid this hasn’t worked either. I do think we shouldn’t be having to go through all this palaver and that Apple should fix the update so it can be seamlessly installed. There is clearly a problem with the update if so many of us are having problems. I don’t think I can do anything else so think I will have to wait for a fix for this.

I’ve just tried again standard and in safe mode . Same think ... downloads fine sticks at installation then after an hour or so error message instillation could not be completed. I’m at a loss and not technically able enough to interfere more!

I'm having a similar issue. I've downloaded the update at least ten times. After the download appears to finish, I get an error saying the download failed. Then the download starts over from the beginning.

Same issue with 2018 Mac Mini. But am unable to boot into Safe Mode. I have had problems with every Big Sur installation. First time round I had to download from the Apps Store before I could successfully install. I had major issues 11.01 and at the time couldn’t even get into recovery mode. Ended up taking it to Apple for a clean install. If I get things up and running again I think I’ll steer clear of future updates until Apple can get their act together.

hello

i contacted Mac Apple Support 5 days ago, but the tech support was not aware of such problem (not able to update from 11.0.1 to 11.1). I told them that such problem is prevalent on the net. Perhaps the tech support didnt want to admit there was problem.

No, regular user, but figured out it was the script in the update dialing home so to speak during update. the Update worked no issue on 2019 MacBook Air, but went tits up on Late 2015 iMAC 27" 32gb. So tried support who were just Blaming 3rd party software (exact same software on MacBook Air) so listened to their utter waffle followed their instructions and was like its not working. So sat back thought about it, and then came up with the fix I posted as it worked.

The download file from the app store was the full installer (12.8 g or so)

It doesn't help at all. The same message keeps popping up. Download failed.

I have the same problem, any update to solve this problem?

I also get "Download Failed" right as the 4+gb download completes and the install begins. I happens on and off power.

Thanks! I don’t. I did try safe mode and getting download from App Store and notifications.. all 0% success :(

Big Sur 11.1 update failed, even with a boot in Safe mode.

What the ****?!