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Not happening for me on a late 2017 iMac. When I try, I get this.

1605220426801.png



EDIT: It appears I have a Catalina 10.15.7 update that wants to restart first. That is probably the cause of the error...
 
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After the third installation failure, I'm giving a direct download through the browser a go at the same time as the normal system update. The Safari download does stop with a network timeout, but at least I can hit refresh and it picks up where it left off. URL:

View attachment 1661797

I've used this link and downloaded the whole installer in like 10 mins. Thanks!
 
Well, Apple Card, Apple Pay, iMessage, and Maps are all fixed. Maybe it won't be long for the update to be fixed as well.
 
All Apple services are back on status page EXCEPT:

macOS Software Update​

Kind of gives you hope more people will be available to fix this...
 
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I'm seeing the same thing and dug in a bit deeper. Getting a TCP Denied from a23-194-213-143.deploy.akamaitechnologies.com which has me wondering if akamai hasn't finished replicating the update to all its warehouses.
Yeah - I'm seeing that in the Install.log in Console.

But those console logs are hard to read(!). Looking at them it could be that the TCP_DENIED comes from http://swcdn.apple.com/content/downloads/50/49/.../dkjnjkq9eax1n2wpf8rik5agns2z43ikqu/InstallAssistant.pkg

ps... http ?? Well at least its not a certificate issue then :)
 
Reached 3,8 GB and crashed. Now it wouldn´t even restart, just goes straight into the error. Restarted the MacBook 3 times. Same garbage. I’ll try tomorrow 😂
location: France
 
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Armchair analysis - the servers are crashing because the backbone of the internet is experiencing major usage surges. Why? Think about it:
  • Apple releasing their latest macOS update, Big Sur
  • Apple releasing their next iOS betas - ios 14.3, watchOS 7.2, and tvOS 14.3
  • Playstation 5 launch day - day 1 updates to almost all new games releasing at launch with the console
  • Xbox Series S and Series X - they launched 2 days ago, but I am sure players are still downloading day 1 patches to games today too
So, just those 4 aspects alone, I can imagine the backbone of the internet crippling with traffic.....Thoughts?
 
  • Playstation 5 launch day - day 1 updates to almost all new games releasing at launch with the console
  • Xbox Series S and Series X - they launched 2 days ago, but I am sure players are still downloading day 1 patches to games today too
I would say those 2 alone are the pressure. The numbers of Big Sur and 14.3 would be minimal compared to the Xbox and the PS5
 
Downloaded, installed, all the applications I use, installed. Everything working pretty fine. No problems whatsoever...so far... :)
Congrats, but did you face the error before or you tried downloading first time only after the issue was resolved?
 
Yeah - I'm seeing that in the Install.log in Console.

But those console logs are hard to read(!). Looking at them it could be that the TCP_DENIED comes from http://swcdn.apple.com/content/downloads/50/49/.../dkjnjkq9eax1n2wpf8rik5agns2z43ikqu/InstallAssistant.pkg

ps... http ?? Well at least its not a certificate issue then :)
They are hard to read. I'm suspecting that they have some internal infrastructure around this logging and don't expect us to ever dig into it.

Also, I'd guess that when the installer connects to actually get the install data the server will do a reverse checksum of the install binary to make sure everything is kosher.
 
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