[Simh] Netbooting the SIMH VAX emulator

[David Brownlee]

On 5 July 2013 23:46, Joel Heikkila <jjheik at gmail.com> wrote:
> Hi all,
>
> Just on a whim, I decided to try to netboot NetBSD on the VAX emulator. The
> mopd/dhcpd/NFS server is FreeBSD amd64 and the machine SIMH was running on
> is FreeBSD sparc64, they were both on the same hub.  I'm using the latest
> SIMH code from Github.  I tried it with both the "vax" µVAX 3900 emulator
> and the "microvax2" emulator.
>
> First, the MOP bootloader from every NetBSD since I think 1.5.3 is broken
> such as
> http://ftp.netbsd.org/pub/NetBSD/NetBSD-6.0.2/vax/installation/netboot/boot
> (unless I'm misconfiguring it or downloading the wrong file), so you have to
> dig into the archives to find a working bootloader such as from 1.5.3
> http://ftp.netbsd.org/pub/NetBSD-archive/NetBSD-1.5.2/vax/installation/netboot/boot.mop

I know the netboot bootloader was broken for a while, but I'm sure I
netbooted a 4000/90 using the 6.0 bootloader. Its *possible* it was
fixed sometime after 6.0 so it could have been in 6.1. Do you get the
same error trying the 6.1 bootloader?