GRUB issues with EL8 Discovery Image

[tmm]

Hello everyone!

Since I’m running into problems with networking on modern hardware with the EL7 Discovery Image I’m in the process of rebuilding it against EL8. I have followed this guide to create the image:

Building Discovery Image on EL8

Hello, foreman discovery image is still based on EL7, but if you want to try to build it on EL8 feel free to do so and give us a feedback. Here is a tutorial: Checkout the repository and run ./build-livecd fdi-centos7.ks. Then edit the generated fdi-image.ks as follows. Change the following lines: network --bootproto=dhcp url --mirrorlist=http://mirrorlist.centos.org/?release=8&arch=$basearch&repo=baseos repo --name="AppStream" --mirrorlist=http://mirrorlist.centos.org/?release=8&arch=$base…

After that I used the boot.iso and livecd-iso-to-pxeboot to install the new FDI, and moved the output directory to replace /var/lib/tftpboot/boot/fdi-image/. But when I test it I get a bunch of Grub errors:

error: ../../grub-core/net/tftp.c:256:Permission denied
error: ../../grub-core/loader/i386/efi/linux.c:94:you need to load the kernel first

The provisioning templates look fine, but the issue could be in there somewhere. I’m running the latest versions, Foreman and Foreman Proxy 3.0 on Rocky Linux 8.4.

Any ideas on how to get this to work? Thanks.

[lzap]

Hey, we are going to work on EL8 builds soon.

I replied in the linked thread on how to create a live PXE image. It is easier now thanks to Lorax, no livecd-iso-to-pxeboot needed anymore!