see
https://forums.virtualbox.org/viewtopic.php?f=6&t=86992&p=415809#p415809
I tried putting pauses in menu.lst code to find the point where it BSOD's and the two lines you indicated worked fine.
I found the cause was the map command (see link to forum for details). I can repro without using VMUB or .vmdk file or E2B.
Topic: Easy2Boot
Date 07/03/2018
By SteveSi
Subject Re: Re: Possible bug in latest VBox 5.2.8 triggered by E2B menu.lst
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