I’m struggling to get BootRunner to boot my external Windows 10 installation, I can bless the volume via terminal [sudo bless /usr/sbin/bless -device /dev/disk3s1 -setBoot -nextonly] and it works fine.
I’ve set SIP to csrutil enable --without nvram
I’ve tried all 3 options in the force boot type, EFI, Legacy & Volume EFI
I’ve also uninstalled and reinstalled BootRunner, still no joy.
No matter what I do it just doesn’t seem to want to work
Running 10.14.1 and Boot Runner 3.1 if that combination has any bearing on the solution.
I’d be grateful for some advice on what to try next