Help Booting in Safe mode isn't actually Safe mode

Hi, I'm following this guide:https://hackintosher.com/guides/macos-high-sierra-Hackintosh-install-clover-walkthrough/

I've finished running the OS X installer, and I've got the OS working but I'm trying to complete the step where I copy the EFI.

In order to do this, I have to be able to mount the EFI from the USB disk and the EFI from the target disk. However, I can't do this unless in safe mode.

The weird thing is I have booted OS X from Clover with the +x argument (in fact, it won't launch properly without this) however, it doesn't seem like it's safe mode at all, it's just normal. This means I can't actually mount the EFIs (only possible in Safe Mode).

Does anybody know of another flag or a way to try and start in Safe mode? I've set is as a command line argument and also tried selecting it from the command line menu during the Clover boot method (when pressing spacebar).