How to update Big Sur / arm64?

We have the mac mini with Big Sur / ARM and wanted to update it. However:

Code Block
# softwareupdate -l
Software Update ToolFinding available software
The operation couldn't be completed. (NSURLErrorDomain error -1012.)


And, we also used System Preferences > Software Update and it says: Unable to check for updates and then no available updates found, please try again later.

We're having stability issues and wanted to update. We're running:
Code Block
Darwin macarm.local 20.0.0 Darwin Kernel Version 20.0.0: Sun Jun 14 21:36:36 PDT 2020; root:Bridge_xnu-7090.111.5.2~1/RELEASE_ARM64_T8020 arm64

Hi,

I managed to update with the macOSDeveloperBetaAccessUtility.

It's the last download link (Beta Access Utility) for macOS Big Sur 11 beta 6
on https://developer.apple.com/download/universal/

Cheers, Ben
I'm sorry, I don't have a solution for you, only a "me too" post... but with a slightly different error.

Updating macOS on Big Sur isn't working for me either.

Code Block
james@Jamess-Mac ~ % softwareupdate -i "macOS Big Sur Beta 9-20A5384c"
Software Update Tool
Finding available software
2020-10-01 09:28:22.990 softwareupdate[3891:516909] Creating client/daemon connection: FC1D1CA5-E086-474D-A4A9-4BE8EF30AC61
Downloading macOS Big Sur Beta 9
downloading: 100.00%
Failed to download & prepare update: Error Domain=SUMacControllerError Code=7721 "[SUMacControllerErrorPreflightWakeupFailed=7721] Failed to perform PreflightWakeup operation: [MobileSoftwareUpdateErrorDomain(MSU):MSU_ERR_INTERNAL_ERROR(7)]" UserInfo={NSUnderlyingError=0x149606b30 {Error Domain=MobileSoftwareUpdateErrorDomain Code=7 "No service connection" UserInfo={NSLocalizedDescription=No service connection}}, SUMacControllerErrorIndicationsMask=0, NSDebugDescription=[SUMacControllerErrorPreflightWakeupFailed=7721] Failed to perform PreflightWakeup operation: [MobileSoftwareUpdateErrorDomain(MSU):MSU_ERR_INTERNAL_ERROR(7)], NSLocalizedDescription=Failed to launch the software update installer. Please try again.}


I noticed that the beta profile was not installed at first so I installed it and then the latest beta (beta 9, at time of writing) showed up in Software Update, but I can't install it.
@Ben, I didn't see your reply before posting my own... the /universal/ was what I was missing -- I'll give it a try, thanks!
How to update Big Sur / arm64?
 
 
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