Re: Grub2 PXE Boot UEFI MAC address based configuration

[Andrei Borzenkov]

27.10.2016 14:25, Engelmann Florian пишет:
> Dear list,
> 
> I am at the same path Andy was:
> 
> https://lists.gnu.org/archive/html/help-grub/2013-06/msg00019.html
> 
> But I found lots of tutorials describing grub2 using a configuration scheme 
> like grub.cfg-01-<MAC>:
> 
> https://docs.oracle.com/cd/E52668_01/E54695/html/ol7-install-pxe-boot-uefi.html
> 
> http://projects.theforeman.org/projects/foreman/wiki/PXE_Booting_UEFI/8
> 
> https://beaveryoga.wordpress.com/2013/08/20/grub2-uefi-pxe-cobbler-ready/
> 
> I was not able to make it work. I did:
> 
> grub-mknetdir --net-directory=/srv/tftpboot
> 
> and my dnsmasq configuration looks like:
> 
> interface=eth1
> enable-tftp
> tftp-root=/srv/tftpboot
> dhcp-boot=bios/pxelinux.0
> dhcp-match=set:efi-x86_64,option:client-arch,9
> dhcp-boot=tag:efi-x86_64,boot/grub/x86_64-efi/core.efi
> dhcp-match=set:efi-x86_64,option:client-arch,7
> dhcp-boot=tag:efi-x86_64,boot/grub/x86_64-efi/core.efi
> #dhcp-boot=tag:efi-x86_64,efi64/syslinux.efi
> #dhcp-match=set:efi-x86_64,option:client-arch,7
> #dhcp-boot=tag:efi-x86_64,efi64/syslinux.efi
> #dhcp-match=set:efi-x86_32,option:client-arch,6
> #dhcp-boot=tag:efi-x86_32,efi32/syslinux.efi
> dhcp-option=42,10.38.111.15   # Timeserver
> domain-needed
> bogus-priv
> #listen-address=10.38.111.15
> expand-hosts
> dhcp-range=10.38.111.101,10.38.111.199,12h
> local=/xxxxxxxxxxxxxx/
> 
> Using /srv/tftpboot/boot/grub/grub.cfg works fine but any file like  
> /srv/tftpboot/boot/grub/grub.cfg-01-<client MAC address> is ignored.
> 
> Is there any documentation to get the job done?
> 

grub itself reads single file, which is grub.cfg. This file can be
script that attempts to load other files. You can access MAC address of
interface over which grub was netbooted using $net_default_mac variable
and derive file names from it.