Re: VS3100M76 - current

[Holm Tiffe <holm%freibergnet.de@localhost>]

Patrick Finnegan wrote:

> It appears that Debian's Mopd has a patch to work with ELF.  Perhaps it
> could work on FreeBSD for you?
> 
> In any case, it works on things other than NetBSD. I'm not sure providing a
> non-ELF kernel image makes sense. I'm sure it's not a trivial change.
> 
> Pat


...at first: Why you answering at top? Outlook?

2nd: not hte kerenl, the problem is simply the "boot" file that gets loaded
from mopd and the change as simple as mopcopy ELF-bootfile mop-bootfile on
a NetBSD system building the distribution.
The kernel gets loaded later over NFS from that already booted bootfile.

I'll look for the Debian stuff, thx.


Regards,

Holm
> 
> 
> On Wed, May 21, 2014 at 6:31 AM, Holm Tiffe <holm%freibergnet.de@localhost> 
> wrote:
> 
> > Holm Tiffe wrote:
> >
> > [..]
> >
> >
> > Since booting thakes that long wfrom a CD, I've decided to try Netbooting
> > again, but this isn't possible without some work.
> >
> > There are netboot files provided for mop.
> > If you look deeper on this, you will see that those files are ELF format,
> > and at least my FreeBSD mopd from the ports isn't able to boot them.
> > I had to use mopcopy to build a mopfile from them, but unfortunately
> > a look to the sources brings up this:
> >
> > mopcopy.c:
> >
> > #ifndef NOELF
> > # if defined(__NetBSD__)
> > #  include <sys/exec_elf.h>
> > # else
> > #  define NOELF
> > # endif
> > # if !defined(EM_VAX)
> > #  define EM_VAX 75
> > # endif
> > #endif /* NOELF */
> >
> > That means ELF is supported on NetBSD, on nothing other. I don't even try
> > to compile the needed support in.
> >
> > I've hacked this a year before and I have a 32bit FreeBSD mopcopy that does
> > the job, but I don't have the sources anymore and my workstation is a 64bit
> > system now. (I've hacked in the netboot because I needed to add support
> > for the rtVAX SGEC)
> > So please guys, since I don't know how this would work out on other server
> > architectures, could you please provide an a.out mop file which will work
> > on NetBSD AND the other Architectures? The needed converter is build on
> > NetBSD anyways...
> >
> > The next thing with that file is this:
> >
> >
> > netio.c from NetBSD VAX boot:
> >
> >          * Get info for NFS boot: our IP address, our hostname,
> >          * server IP address, and our root path on the server.
> >          * There are two ways to do this:  The old, Sun way,
> >          * and the more modern, BOOTP way. (RFC951, RFC1048)
> >          */
> >
> > #ifdef SUPPORT_BOOTP
> >
> >         /* Get boot info using BOOTP way. (RFC951, RFC1048) */
> >         printf("Trying BOOTP\n");
> >         bootp(0);
> >
> >         if (myip.s_addr) {
> >                 printf("Using IP address: %s\n", inet_ntoa(myip));
> >
> >                 printf("myip: %s (%s)\n", hostname, inet_ntoa(myip));
> >         } else
> >
> > #endif /* SUPPORT_BOOTP */
> >         {
> > #ifdef  SUPPORT_BOOTPARAMS
> >                 /* Get boot info using RARP and Sun bootparams. */
> >
> >                 printf("Trying BOOTPARAMS\n");
> >                 /* Get our IP address.  (rarp.c) */
> >                 if (rarp_getipaddress(0) == -1)
> >                         return (errno);
> >
> >                 printf("boot: client IP address: %s\n", inet_ntoa(myip));
> >
> >                 /* Get our hostname, server IP address. */
> >                 if (bp_whoami(0))
> >                         return (errno);
> >
> >                 printf("boot: client name: %s\n", hostname);
> >
> >                 /* Get the root pathname. */
> >                 if (bp_getfile(0, "root", &rootip, rootpath))
> >                         return (errno);
> > #endif
> >         }
> >         printf("root addr=%s path=%s\n", inet_ntoa(rootip), rootpath);
> >         f->f_devdata = s;
> >
> >
> >
> > someone decided that there is a modern way: "The old, Sun way,
> >          * and the more modern, BOOTP way. (RFC951, RFC1048)"
> >
> > BOOTP is providing a root-path, but nobody inide "boot" is interested in
> > that root-path:
> >
> > Trying BOOTP
> > Using IP address: 192.168.50.22
> > myip: vs3176 (192.168.50.22)
> > root addr=192.168.50.49 path=
> > nfs_open: must mount first.
> > open netbsd.gz: Device not configured
> > netbsd.gz: boot failed: Device not configured
> > > boot netbsd.old
> >
> > wireshark says that my DNSMASQ from my Linksys Router is providing one:
> >
> > "Boot file name: /tftpboot/netbsd-vax"
> >
> > So why this is leaved unnused?
> > In libsa the bootfile is rad but the variable is unnused.
> >
> > It is really not that easy to dig with an VAX and NetBSD if you not already
> > have a VAX with a running NetBSD. I've had setup a cross development tree 1
> > year before, but I have this todo again it seems...
> >
> > Regards,
> >
> > Holm
> >
> >
> > --
> >       Technik Service u. Handel Tiffe, www.tsht.de, Holm Tiffe,
> >      Freiberger Straße 42, 09600 Oberschöna, USt-Id: DE253710583
> >   www.tsht.de, info%tsht.de@localhost, Fax +49 3731 74200, Mobil: 0172 8790 
> > 741
> >
> >

-- 
      Technik Service u. Handel Tiffe, www.tsht.de, Holm Tiffe, 
     Freiberger Straße 42, 09600 Oberschöna, USt-Id: DE253710583
  www.tsht.de, info%tsht.de@localhost, Fax +49 3731 74200, Mobil: 0172 8790 741