SOLVED: Need help flashing a Dell H200A

[Leek Soup]

I bought a Dell Power Edge T110 ii. It turns out it had a Dell H200 in it which was a nice surprise. I am trying to flash it to IT mode, but any time I try to do anything with the card using MEGAREC, I get an error. I am doing this from a FreeDOS bootable USB key. For example, when I run the command
"megarec -readsbr 0 sbr"
I get the error message shown in the picture. I know it's doing something, because when I go back and check the Megarec directory on the USB key it did create the sbr file, but it's empty.
I get a similar error message (but with different numbers) when trying the
"megarec -writesbr 0 sbrempty.bin"
and
"megarec -cleanflash 0"
commands.

I have tried:
-2 different computers
-Multiple different installs of FreeDOS on multiple USB keys

sas2flash can read the card's data seemingly without issue, so I assume it's an issue with Megarec.
I've spent almost 4 hours trying this, I've been thinking it might be better to just buy a 9211, since it seems they're easier to flash than Dell models.

The guides I'm using:

Updated: SAS HBA crossflashing or flashing to IT mode, Dell Perc H200 and H310

Default firmware for this guide is: 2118it.bin Version 20.00.07.00 Release date: 11-FEB-16 WARNING: If you have an Integrated, Mini or Mini Mono Perc H310 do NOT try to crossflash with these steps.…

techmattr.wordpress.com

Detailed newcomers' guide to crossflashing LSI 9211/9300/9305/9311/9400/94xx HBA and variants

There's hundreds of threads on crossflashing variants of LSI 9211/9300/9305/9311/94xx cards here, on ServeTheHome, and on blogs. But they don't always discuss the subtleties of doing it on an EFI board for users who may never have used EFI...

www.truenas.com

Thanks

 

[Leek Soup]

I have found a solution.
It seems like if you use FreeDOS as I was, when booting you will be prompted with the screen shown in the picture. At this screen, you must select option 4, otherwise Megarec will not work. If you allow it to boot normally without selecting an option, you will get the " Run-time (6001): exception " when trying to write to/read from the card.
I found this from looking at this forum post: https://www.truenas.com/community/threads/page-fault-when-using-megarec-exe-and-freedos-1-1.41129/