PLEASE - PLEASE - PLEASE EVERYONE POSTING IN THIS THREAD
IF YOU POST YOUR XML FOR THE VM HERE PLEASE REMOVE/OBSCURE THE OSK KEY AT THE BOTTOM.
IT IS AGAINST THE RULES OF THE FORUM FOR OSK KEY TO BE POSTED....THANKYOU
The first macinabox is now been replaced with a newer version as below.
Original Macinabox October 2019 -- No longer supported
New Macinabox added to CA on December 09 2020
Please watch this video for how to use the
Set your boot disk from within mac os, then check ShowPicker property in the config.plist, to automatically boot without user interaction you need it set to false.
Otherwise, if you want the picker (what you call boot manager) to always show, set it to true, but change the timeout value.
I recommend all to read opencore documentation:
All is well documented.