=== modified file 'util/grub-install.in'
--- util/grub-install.in	2013-04-29 10:26:43 +0000
+++ util/grub-install.in	2013-05-09 10:23:06 +0000
@@ -754,7 +754,7 @@
     fi
 
     # Try to make this image bootable using the EFI Boot Manager, if available.
-    efibootmgr="`which efibootmgr`"
+    efibootmgr="`which efibootmgr`" || true
     if test "$removable" = no && test -n "$efi_distributor" && \
 	test -n "$efibootmgr"; then
         # On Linux, we need the efivars kernel modules.