My cobbler server works well with BIOS boot servers. When comes to efi boot servers, it can not boot. Have the same problem as this GitHub issue. https://github.com/cobbler/cobbler/issues/1572

The author says he fix this by replacing ‘grub-x86_64.efi’, but it not works in my environment.
There this no boot menu, and boot from the first entry.

Cobbler version:2.6.11