Re: bootx64.efi and diskless boot

[Martin Husemann <martin%duskware.de@localhost>]

On Mon, Feb 09, 2026 at 09:33:47AM -0800, aran%100acres.us@localhost wrote:
> I have an nfs server with tftp, dhcp, etc.  The client gets its address, loads
> bootx64.efi from tftp.  It then loads boot.cfg, the kernel, and nfs.kmod from
> nfs.  However, it fails to boot the kernel.  I have it narrowed down to the call
> to efi_cleanup from exec_netbsd.  If I comment the call to callback, which is
> efi_cleanup, startprog calls the kernel's main.  Of course, it can't boot up
> because bootx64.efi has never called ExitBootServices.  However, if I do call
> callback->efi_cleanup->ExitBootServices, the kernel's main is never called.
> 
> This feels like a memory map problem, but I am at a loss.  Any advice would be
> appreciated.

First thing to check is if there is a firmware update for your mainboard.

Next thing I would suggest to try is using bootx64.efi from current, it should
be able to deal with your 10.1 kernel, so no need to modify anything on the
target machines installation.

Martin