If your system partition is on a different device than the EFI you're booting from, it cannot detect EFI.
You should try other valid layout-id values. Note:
Code:
-rw-r--r-- 1 rehabman staff 11152 Apr 24 2018 /Users/rehabman/Projects/lilu/applealc.git/Resources/ALC236/layout11.xml
-rw-r--r-- 1 rehabman staff 852 Dec 7 13:49 /Users/rehabman/Projects/lilu/applealc.git/Resources/ALC236/layout11.xml.zlib
-rw-r--r-- 1 rehabman staff 57738 Apr 24 2018 /Users/rehabman/Projects/lilu/applealc.git/Resources/ALC236/layout13.xml
-rw-r--r-- 1 rehabman staff 4189 Dec 7 13:49 /Users/rehabman/Projects/lilu/applealc.git/Resources/ALC236/layout13.xml.zlib
-rw-r--r-- 1 rehabman staff 21712 Apr 24 2018 /Users/rehabman/Projects/lilu/applealc.git/Resources/ALC236/layout15.xml
-rw-r--r-- 1 rehabman staff 1823 Dec 7 13:49 /Users/rehabman/Projects/lilu/applealc.git/Resources/ALC236/layout15.xml.zlib
-rwxr-xr-x 1 rehabman staff 21712 Oct 14 06:48 /Users/rehabman/Projects/lilu/applealc.git/Resources/ALC236/layout16.xml
-rw-r--r-- 1 rehabman staff 1823 Dec 7 13:49 /Users/rehabman/Projects/lilu/applealc.git/Resources/ALC236/layout16.xml.zlib
-rw-r--r-- 1 rehabman staff 32632 Apr 24 2018 /Users/rehabman/Projects/lilu/applealc.git/Resources/ALC236/layout3.xml
-rw-r--r-- 1 rehabman staff 1808 Dec 7 13:49 /Users/rehabman/Projects/lilu/applealc.git/Resources/ALC236/layout3.xml.zlib
-rw-r--r-- 1 rehabman staff 32633 Dec 7 13:48 /Users/rehabman/Projects/lilu/applealc.git/Resources/ALC236/layout99.xml
-rw-r--r-- 1 rehabman staff 1809 Dec 7 13:49 /Users/rehabman/Projects/lilu/applealc.git/Resources/ALC236/layout99.xml.zlib