1. we shouldn't allow the user to leave the partitioner with a config that will lead to an install failure later
2. if the user can't have an ESP for whatever reason, we should let the install proceed without setting up shim-signed/grub-efi*
We should still encourage wherever possible that the user set up an ESP, for compatibility with firmware changes or moving disks between hosts.
Two guidelines we should enforce here:
1. we shouldn't allow the user to leave the partitioner with a config that will lead to an install failure later grub-efi*
2. if the user can't have an ESP for whatever reason, we should let the install proceed without setting up shim-signed/
We should still encourage wherever possible that the user set up an ESP, for compatibility with firmware changes or moving disks between hosts.