boot to grub2

[SebastianRoth]

Is this on a BIOS or UEFI machine? Either way you should be able to generate a netbootable GRUB image that you can chainload to from iPXE. Read though those articles and you should be able to figure it out: https://github.com/openSUSE/kiwi/wiki/Se...sing-GRUB2 and https://www.gnu.org/software/grub/manual...twork.html

Let us know if you need more assistance on this. And please post your steps for others that might read this in search for the same issue.