Bhyve UEFI drops into EFI shell, Linux wont boot Easy Workaround

Published Date: 2023/09/01 by: DaVieS

EFI works that way that the installer places a file into a FAT32 partition in a regular directory as called "BOOT".

The usual full path of EFI loader is /boot/efi/EFI/BOOT/bootx64.efi

However, some moderrn operating system will rename the BOOT into a custom name such as debian. This is happening to allow computer having more operating systems installed.

But the last way is not supported yet in Bhyve. Thats why you might encounter an issue after installing Debian linux on FreeBSD Bhyve hypervisor.

The solution is that you have to rename back the folder into BOOT.
To achieve this you should boot up the Operating System.

1. Get into UEFI Menu

If you are using our BVCP product on the start screen will be delayed for 10 seconds so you have time to press F2 to enter UEFI Menu just as like the images show.

If you dropped into UEFI shell already, just type exit to bring up UEFI Menu.

2. Enter Boot Maintenance Manager / Boot From File

Select & go through directories until you find something like grubx64.efi.
On debian system this should be: EFI/debian/grubx64.efi

Then select the .efi file to load EFI loader.
The Operating System should have booted without problem after this step.

3. Permanent Solution

Log in to the operating system, then create a folder on EFI path, which is usually /boot/efi.
The following example make debian system to boot properly on Bhyve.

mkdir /boot/efi/EFI/BOOT
cp /boot/efi/EFI/debian/grubx64.efi /boot/efi/EFI/BOOT/bootx64.efi

After the reboot the system should be boot perfectly.

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