[Simh] Problem booting RSX11M on pdp11 (halt at loc 0)

[Mark Pizzolato]

On Friday, March 30, 2018 at 11:55 AM, Phil Fisher wrote:
> It seems it is Centos6 (specifically Centos 6.9, kernel 2.6.32-696) since I also
> tried on my Centos 7 -- not as recent as yours Mark (I don't like
> RHEL7/Centos7 so tend not to use it unless I need something specific).
> 
> Just like you I re-used my simh-master.zip (recent), built SimH (4.0.0-current)
> and ran pdp11 (no DEBUG).
> 
> I copied the RL01 image I had already that I knew worked from my Win 10
> storage onto Centos7 "local storage".  I then did a cmp on the two for
> confirmation they were identical.  Then created 11/70, 1MB RAM, IDLE
> enabled.  Attached the new disk from local Centos7 storage and noted it was
> immediately correctly recognised (thanks for the tip Mark), booted and et
> voila!
> 
> So there is something screwy with my Centos6 or the kernel.  I will re-update
> Centos6 later and re-try, just in case.

Before involving simh, please compare the md5sum of the disk image file that 
works vs the one that doesn't.

- Mark