install/53302: Manual MBR wipe needed for installation of 8.0_RC1

[chris%sogubsys.com@localhost]

>Number:         53302
>Category:       install
>Synopsis:       Manual MBR wipe needed for installation of 8.0_RC1
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    install-manager
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sun May 20 13:55:00 +0000 2018
>Originator:     Chris Humphries
>Release:        8.0_RC1
>Organization:
>Environment:
NetBSD localhost 8.0_RC1 NetBSD 8.0_RC1 (GENERIC.201804191727Z) amd64

>Description:
I couldn't boot into NetBSD after installation. I would see the NetBSD MBR message, but then get No Operating System Found message on the next line. 

To fix, I had to dd if=/dev/zero of=/dev/rwd0d to get it to work. 

No error was presented in installation, it all appeared to work fine. dd method I found via googling.

I used the entire disk for NetBSD. 
>How-To-Repeat:
Install NetBSD 8.0_RC1 over Debian Linux? 
>Fix:
Properly wipeout the MBR on installation?