onion_knight via Whonix Forum:
In fact we already have an ISO file that boots on EFI and BIOS systems.
What we could not achieve is having an EFI bootable installed Whonix-Host system. Reasons still unknown.
@Patrick, would you maybe consider already releasing Whonix-Host ISO as it is, without EFI support for Calamares installer? This way people could already start to test it and maybe we could gather some feedback on how to fix this issue.
It is a good idea. However, I don’t want to sink Whonix-Host release,
create a bad reputation by releasing low quality software.
Among most important features for Whonix-Host which are not implemented
yet are Whonix-Host firewall and Whonix-Host Tor /
anon-connection-wizard (ACW) configuration.
https://phabricator.whonix.org/T942
https://phabricator.whonix.org/T981
But to get potetial help, maybe a compromise. Using
could add WARNING - Whonix DEVELOPERS-ONLY Preview Version. Will work
it and then something can be published soon.