Hello, I am wondering where grub is supposed to look for grub.cfg when booted via PXE as grubx64.efi (or bootx64.efi)?
Background: I have been playing around with running shredos (https://github.com/PartialVolume/shredos.x86_64) over the network via PXE. I failed with the bootx64.efi (which is grub2) coming with shredos because it does not find grub.conf when booted via PXE/tftp. It just checks /EFI/BOOT/grub.conf in this case. The grub in shredos is built via GNU's buildroot using the official grub sources. So I tried with grubx64.efi as delivered by Centos7 and succeeded. This grubx64.efi loads grub.conf - amongst other locations - from the same path where the .efi file has been found: Jun 15 14:10:33 server in.tftpd[31076]: RRQ from 192.168.11.15 filename cluster/shredos/bootx64.efi Jun 15 14:10:33 server in.tftpd[31076]: Client 192.168.11.15 finished cluster/shredos/bootx64.efi ... Jun 15 14:10:40 server in.tftpd[31097]: RRQ from 192.168.11.15 filename cluster/shredos/grub.cfg Jun 15 14:10:40 server in.tftpd[31097]: Client 192.168.11.15 finished cluster/shredos/grub.cfg I think that the centos7 build works because it is patched to check the fw_path variable. The official sources seem to not contain fw_path at all. (if you want to know more details all this is described in some length at https://github.com/PartialVolume/shredos.x86_64/issues/147) So is there a way to make the official grub look for grub.conf at the same dir as the efi file when booting via PXE? Thanks, Uli
