Older motherboards and some UEFI firmware can't create boot entries automatically even when a bootloader exists on the EFI System Partition. When OpenCore won't boot without the USB stick, or its entry disappears from the BIOS boot list, you can add the NVRAM boot entry directly with the bcfg command from a standalone UEFI Shell. Revised and updated as of 2026. The core commands from the original post still hold, but I've added map -r to re-scan the filesystems, path verification, reordering boot entries, and pre-flight precautions. I also fixed the path separator that looked like a won sign on screen to the actual UEFI backslash ( \ ). When to use this method The bootloader is on the EFI partition but doesn't appear in the BIOS boot list Removing the OpenCore USB stops the internal disk from booting You want to clean up duplicate Clover/OpenCore boot entries or change their order The motherboard setup screen has no option to select an EFI file directly Cau...
I like to take notes on travel, and I am putting together various IT tips that I often forget during work.