Re: PXE booting EFI client

[john doe <johndoe65534@mail.com>]

On 9/7/2022 1:46 PM, Sven Hoexter wrote:
> On Tue, Sep 06, 2022 at 07:21:59PM +0200, john doe wrote:
> > Debians,
> >
> > I'm trying to pxe boot a client with UEFI BIOS to no avail.
> >
> > Everything works with legacy BIOS but if I use those two lines in my
> > dnsmasq.conf:
> >
> > "dhcp-boot=bootnetx64.efi
> > pxe-service=X86-64_EFI, "Boot UEFI PXE-64", bootnetx64.efi"
>
> Maybe you've a host which sents as architecture "00007" instead of
> "00009" via DHCP and this pxe-service is not matched at all. You
> can figure that out if you look with wireshark at the DHCP traffic.
> According to my notes the protocol option field is 93 you've to look at.
> I ran into such an issue a few years back with HPE DL360G10 vs DL120G9.
>
> Config setting to try out would be:
> pxe-service=BC_EFI, "Boot UEFI PXE-64", bootnetx64.efi"

Thanks to the help of "Sven Hoexter <sven@stormbind.net>' I got it
working by doing:
/etc/dnsmasq.conf:
pxe-service=BC_EFI, "Boot UEFI PXE-64",
/debian-installer/amd64/bootnetx64.efi

I emulate the 'dhcp-boot' option in a option file:
option:bootfile-name,/debian-installer/amd64/bootnetx64.efi

I also had to put the below file in the tftp root directory:
grubx64.efi

Sven's blog [1] has more info on all of this.


[1] https://sven.stormbind.net/blog/posts/deb_stretch_hpe_dl360/

--
John Doe