Adjust some default settings (default shipped .conf files).
GRUB2 is default bootloader in openSUSE and openSUSE based appliances.

diff --git a/src/modules/bootloader/bootloader.conf b/src/modules/bootloader/bootloader.conf
--- a/src/modules/bootloader/bootloader.conf
+++ b/src/modules/bootloader/bootloader.conf
@@ -33,10 +33,10 @@ timeout: "10"
 # GRUB functionality (notably grub-probe) to work. As needed, you may use
 # complete paths like `/usr/bin/efibootmgr` for the executables.
 #
-grubInstall: "grub-install"
-grubMkconfig: "grub-mkconfig"
-grubCfg: "/boot/grub/grub.cfg"
-grubProbe: "grub-probe"
+grubInstall: "grub2-install"
+grubMkconfig: "grub2-mkconfig"
+grubCfg: "/boot/grub2/grub.cfg"
+grubProbe: "grub2-probe"
 efiBootMgr: "efibootmgr"
 
 # Optionally set the bootloader ID to use for EFI. This is passed to