Install macOS Big Sur using Terminal This command was working previously in macOS High Sierra to install the OS via Terminal:
sudo /Applications/Install\ macOS\ Big\ Sur.app/Contents/Resources/startosinstall -applicationpath /Applications/Install\ macOS\ Big\ Sur.app


But I'm getting:

&quot;--applicationpath&quot; is deprecated in macOS 10.14 and greater. Please remove it from your invocation.
This seems to work:
sudo /Applications/Install\ macOS\ Big\ Sur.app/Contents/Resources/startosinstall --agreetolicense --nointeraction --forcequitapps