Ignore BIOS entirely when installing GRUB for EFI.

debian/changelog

@@ -1,3 +1,9 @@
+calamares-settings-ubuntu (25) cosmic; urgency=medium
+
+  * Ignore BIOS entirely when installing GRUB for EFI.
+
+ -- Walter Lapchynski <wxl@ubuntu.com>  Thu, 11 Oct 2018 19:29:20 -0700
+
 calamares-settings-ubuntu (24) cosmic; urgency=medium
 
   [ Wendy Hill ]

lubuntu/modules/before_bootloader_context.conf

@@ -1,8 +1,10 @@
 # Make sure the correct bootloader package is installed for EFI.
 # Also pull in shim so secureboot has a chance at working.
+# Because of edge cases, we ignore BIOS, and do the same
+# procedure for all EFI types.
 ---
 firmwareType:
-    bios:    /bin/false
+    bios:    "-/bin/true"
     "*":
         -    command: apt-cdrom add -m -d=/media/cdrom/
              timeout: 10