Add instructions to run HOS from GRUB

README.md

@@ -18,6 +18,20 @@ To install HOS to an EFI partition, follow these steps:
 
     efibootmgr -o 2,0,6,5
 
+At this point you should be able to boot HOS from your EFI boot selection menu.
+If you use GRUB, you can optionally create a GRUB boot entry to load HOS.EFI
+with an entry like this:
+
+    menuentry 'HOS' {
+      insmod part_gpt
+      insmod chain
+      set root='(hd0,gpt1)'
+      chainloader /EFI/HOS.EFI
+    }
+
+Just update the root setting for the correction location to your system's EFI
+partition.
+
 == VirtualBox
 
 To create a VM in VirtualBox: