Subject: Re: rbootd for FreeBSD
To: None <firstname.lastname@example.org>
From: Mike Hibler <email@example.com>
Date: 01/30/1996 21:18:58
> To: firstname.lastname@example.org (Frank Bartels)
> Subject: Re: rbootd for FreeBSD
> From: Jason Thorpe <email@example.com>
> Date: Tue, 30 Jan 1996 17:50:39 -0800
> On Tue, 30 Jan 1996 22:01:03 +0100
> firstname.lastname@example.org (Frank Bartels) wrote:
> > I still had no success in netbooting my hp of my FreeBSD box.
> > Someone said a while ago on this list, the FreeBSD rbootd won't
> > work because of the little/big endian mismatch. I compiled the
> > NetBSD rbootd under FreeBSD, but it did not solve the problem.
> > Right now the rbootd answers "something", but the hp does not send
> > an rarp request...
> There is something different about the FreeBSD ethernet drivers,
> apparently (or BPF, or something). Mike Hibler and I were helping a
> fellow from Texas recover his HP-BSD system when we noticed it. Scott
> Reynolds sent me a patch that DTRT #if defined(__FreeBSD__). However, I
> have lost the patch (and I forgot to check it in to the tree).
> Scott, Mike, anyone: if you have the patch, I'd sure appreciate it if
> you'd send me a copy :-)
The problem had to do with BPF. Something (the length field?) in the
ethernet header fed to BPF was being byte-swapped (not byte-swapped?)
when it shouldn't (should?) have been. You just need to change a htons
to a ntohs (or visa-versa).
Sorry for being so vague...