In some other logs I found entries like
MacBook-Pro osinstallersetupd[1710]: objc[1710]: Class BOSQueryCurrentStateOperation is implemented in both /System/Library/PrivateFrameworks/BridgeOSInstall.framework/Versions/A/BridgeOSInstall (0x7fff8e697c80) and /Applications/Install macOS Big Sur.app/Contents/Frameworks/OSInstallerSetup.framework/Versions/A/Frameworks/IAESD.framework/Versions/A/Frameworks/IABridgeOSInstall.framework/Versions/A/IABridgeOSInstall (0x107162780). One of the two will be used. Which one is undefined.
I removed the copy from /Applications and that allowed the install to proceed. Eventually the installer got stuck during installation and I had to hard reboot it once and eventually Big Sur update succeeded.
SergeiT
Users receive reputation points by contributing quality content to the forums.
Posts include post and replies published on the forums.
Post authors can mark replies as Accepted to indicate successful solutions.
Apple Developer Forums admins can mark replies as Apple Recommended to indicate an approved solution
Last seen
User for
Post
Replies
Boosts
Views
Activity
I'm getting this error "The request timed out" and "bridgeOS update prepare timed out" on macOS Big Sur 11.0.1 (not beta). I tried rebooting and also rebooting into safe mode (by holding down shift) and neither helped.