diff -urN e-smith-grub-2.6.1.old/root/etc/e-smith/events/actions/update-grub e-smith-grub-2.6.1/root/etc/e-smith/events/actions/update-grub
--- e-smith-grub-2.6.1.old/root/etc/e-smith/events/actions/update-grub	2021-02-17 22:22:46.513745448 +0000
+++ e-smith-grub-2.6.1/root/etc/e-smith/events/actions/update-grub	2021-02-17 22:27:03.302588400 +0000
@@ -1,5 +1,13 @@
 #!/usr/bin/perl
 use strict;
 use warnings;
-   system("/usr/sbin/grub2-mkconfig","-o","/boot/grub2/grub.cfg") == 0
-        or die("Unable to update grub2\n");
+my $grubpath;
+
+if (-e "/sys/firmware/efi") {
+  $grubpath = "/boot/efi/EFI/centos/grub.cfg";
+} else {
+  $grubpath = "/boot/grub2/grub.cfg";
+}
+
+system("/usr/sbin/grub2-mkconfig", "-o", $grubpath) == 0
+  or die("Unable to update grub2\n");