macOS Big Sur Installation Failed: 'An Error Occurred While Installing the Selected Updates'

[anshuvorty]

Did you do this already on Big Sur? If so, it only worked on earlier versions of macOS, from what I read earlier.

I ran the terminal command on macOS Catalina 10.5.7.

 

[brianlee]

Well, time to get Linux on my MacBook Air and make M1 Mac users jealous.

 

[7thson]

Well good. As long as I’m not the only one. Misery loves company, etc.

 

[IRobertuSI]

Failed for me as well and my Mac also got slow (seems to be better now) so I restarted it.
To my surprise it installed an update, which turned out to be 10.15.7.
So instead of downloading and installing Big Sur my Mac just upgraded from 10.15.6 without asking me?!

Did this happen to anybody else?

 

[Chris NZ]

I'm having the same issue. Apple support asked me to reinstall macOS from macOS Recovery? Really?

 

[sxz451]

Still happening...

 

[@Brett]

What does this mean? Managed externally?

View attachment 1662029

Is your device a work machine? It may be a managed device.

 

[AhmadIsmail688]

Downloaded like 2 GBs and then ..

 

[anshuvorty]

I'm having the same issue. Apple support asked me to reinstall macOS from macOS Recovery? Really?

Apple support knows only the bare minimum. Not helpful when they are asked more technical and advanced topics.

 

[BigMcGuire]

Wow it is still crashing? wow. One good thing... it made this day fly by really fast . It's 2pm already.

 

[subpau]

same here in Europe.:/

 

[berdri100]

Same in France even with a good baguette

 

[sxz451]

Downloaded like 2 GBs and then ..
View attachment 1662107

I think Apple is working on it...

 

[Bustycat]

The issue has persisted for one hour... MacRumors reported it over 15 minutes later.

 

[jsmith189]

Glad it's not just me.

 

[sanks]

Same thing based inFrance

 

[troysr67]

Sorely disappointed. I thought I was taking off of work early to get this done and beat the after work crowd.
Come on Apple. Work with me ...pleezz

 

[ElRojito]

Pathetic.

Netflix, etc, can handle the load when a new movie or TV series is dropped. You'd think Apple would've figured this out by now.

Well to be fair, Netflix is the gold standard for dynamic scaling. Apple is always sucked with cloud services.

 

[GamerZer0]

Every new release this year fails... I wouldn't be surprised if I find thumb drives with Big Sur sold on eBay for $1000

 

[movieator]

Is your device a work machine? It may be a managed device.

Mine's not and it's now giving me the same message.

 

[YLMac]

For the slow issue -- I just restarted my machine 4 or 5 times and it was gone...

 

[LegacyDroid]

whew, noo problem here

 

[Apple_Robert]

At least our systems are up and running with no major problems. I bet Apple puts the download back on the server tomorrow.

 

[anthony13]

Is your device a work machine? It may be a managed device.

No It’s not at all that’s why im Concerned

 

[melduran]

Pathetic.

Netflix, etc, can handle the load when a new movie or TV series is dropped. You'd think Apple would've figured this out by now.

Yeah, I doubt it's the same. Netflix has about 60 million users, and not all of them are quickly looking to stream a released movie, I know people that don't even look at their account for days, and not all of them are going to want to watch whatever new movie they put out. I wouldn't be surprised if less than 15 million users are quick to watch a new movie on Netflix. Also a Netflix movie is not 12.18 GB all at once, it's probably 1GB per every hour. Also, that movie might not be available on other countries. If Apple has 100 million Mac users, I'd say more than 20 million are trying to download it at the same time across the world.