Fusion 12 Big Sur - Unable to create installation medium

[CaliDuck916]

I am unable to create a Big Sur VM in Fusion 12 using the macOS 11.0.1 installer.

Any suggestions? Fusion is up to date.

For our testing purposes, I am not looking to upgrade a Catalina VM to Big Sur. That has been tested already.

[bogdam]

All you need:

hdiutil create 1016.dmg -size 16g -layout SPUD -fs HFS+J

hdiutil attach 1016.dmg -noverify -nobrowse -mountpoint /Volumes/InstallBigSur

sudo /Applications/Install\ macOS\ Big\ Sur.app/Contents/Resources/createinstallmedia --volume /Volumes/InstallBigSur

hdiutil detach /Volumes/Install\ macOS\ Big\ Sur

hdiutil resize -sectors min 1016.dmg