Hi @PJK I don’t think we deliberately remove features from the build-time configuration but rather just use the defaults. I’ve been working on a more robust fix for this where grub actually provides a variable specifically for the device grub itself was launched from. We should then be able to build up the rest of the paths we need from that. Unfortunately I have not had time to get back to this recently and it will likely be several weeks before I have the time.
If you work out a solution with regex please post it here. We would love to see it.
Drew