Yes that is a problem that marcus has stated before.

If you have your DC hooked up to a 100/10 Switch or hub and the port is
set to 100Mb then you need to have the kernel

define NFS_RSIZE  16384

in the file  sys/nfs/nfs.h

If you are not getting any error messages and your Dreamcast get DHCP ok and all
the addresses,
mounts the NFS filesystem and then just hangs I would suspect this is your
problem.

To do this you have to have a cross compiling enviroment setup and rebuild the
NetBSD kernel.
If you don't have this I can send you the kernel I  use that works with 10/100Mb
networks, its
a little older but does most likely everything you want it to do.

Ryan



Andy Michaels wrote:

> Oh, I seem to remember that you need to do the following:
>
> 1) have the DC connected to a PC via a Xover cable
>
> or
>
> 2) have the DC on a switch
>
> I have done 1) and am working on 2) now
>
> After that, you have to make sure that rtk0 on the DC is set up
> properly.  (off the top again) I think you need to set up
> /etc/ifconfig.rtk0 to make sure that the device's media parameters are set
> to have full duplex enabled.  When I get home, I'll mail you my
> /etc/ifconfig.rtk0
>
> Andy
>
> /*
> ** A N D Y . M I C H A E L S
> **
> ** L E G O  AT  G T I  DOT  N E T
> **
> ** http://www.gti.net/lego
> */
>
> On Tue, 11 Dec 2001, andrew culver wrote:
>
> > Andy, thanks!
> >
> > That definately would have been a problem. However, it seems I'm still not
> > getting any further. Just making sure everything was working how it should
> > have been, I did a quick 'showmount -ae', which displays the following:
> >
> >     [ttyp0 prez@devstyle:/usr/export/spellcast]> showmount -ae
> >     All mount points on localhost:
> >     spellcast.lab:/usr/export/spellcast
> >     Exports list on localhost:
> >     /usr/export/spellcast              Everyone
> >
> > So it appears that my Dreamcast is managing to mount the NFS root file
> > system, and the kernel is in place like so:
> >
> >     [ttyp0 prez@devstyle:~]> ls -la /usr/export/spellcast/netbsd
> >     -rw-r--r--  1 root  wheel  1488021 Jul 30  2001
> > /usr/export/spellcast/netbsd
> >
> > Any more thoughts from anyone?
> >
> > I'm hoping this post will show up on the list sooner than the last ;) (I
> > sent it last Wednesday or Thursday, I believe, and it only echo'ed back to
> > me today. Is that common?)
> >
> > Thanks again for the help, it's truly appreciated.
> >
> >   - Andrew (prez@codeninja.ca)
> >
> > --
> > "You must be the change you wish to see in the world." - Gandhi.
> > ----- Original Message -----
> > From: Andy Michaels <lego@apollo.gti.net>
> > To: andrew culver <prez@codeninja.ca>
> > Cc: <port-dreamcast@netbsd.org>
> > Sent: Tuesday, December 11, 2001 9:38 AM
> > Subject: Re: nfs root booting process..
> >
> >
> > > Hmmm, just off the top, it sounds like you need the kernel in the right
> > > spot.  In the Dreamcast section on the FTP site there is a very recent
> > > kernel it's at:
> > > ftp://ftp.netbsd.org/pub/NetBSD/arch/dreamcast/netbsd.1.5R
> > >
> > > you can rename this netbsd and you should be good to go.
> > >
> > > put this in the root of your nfs mounted volume "/usr/export/spellcast"
> > >
> > > If I'm not mistaken, the kernel loaded from either the CD, or via the
> > > IPslave, will look for a kernel to run once you've mounted the root
> > > partition, and that'll be the kernel from then on.
> > >
> > > Hope this works.
> > >
> > > Andy
> > >
> > > /*
> > > ** A N D Y . M I C H A E L S
> > > **
> > > ** L E G O  AT  G T I  DOT  N E T
> > > **
> > > ** http://www.gti.net/lego
> > > */
> > >
> > > On Thu, 6 Dec 2001, andrew culver wrote:
> > >
> > > > There is no error message.
> > > >
> > > > When I load the kernel, I'm prompted for root device, dump device, fs
> > type, where I enter "rtk0", nothing, and "nfs" respectively.
> > > >
> > > > Then it does the DHCP stuff, and spits out the information it got from
> > my lab's DHCP server, (dhcpd.conf is appended)
> > > >
> > > > After that, it spits out the line:
> > > > root on 192.168.1.4:/usr/export/spellcast
> > > >
> > > > then does nothing. Any ideas?
> > > >
> > > >   - Andrew
> > > >
> > > > [ttyp0 prez@devstyle:~/code]> cat /etc/dhcpd.conf
> > > >
> > > > option domain-name "lab";
> > > > option domain-name-servers 24.153.22.67, 24.153.23.66;
> > > > option subnet-mask 255.255.255.0;
> > > > option broadcast-address 192.168.1.255;
> > > > option routers 192.168.1.1;
> > > >
> > > > subnet 192.168.1.0 netmask 255.255.255.0 {
> > > >   range 192.168.1.10 192.168.1.20;
> > > > }
> > > >
> > > > host spellcast {
> > > >   hardware ethernet 00:D0:F1:02:96:D4;
> > > >   option host-name "spellcast";
> > > >   fixed-address 192.168.1.6;
> > > >   next-server 192.168.1.4;
> > > >   option root-path "/usr/export/spellcast";
> > > > }
> > > >
> > > > --
> > > > "You must be the change you wish to see in the world." - Gandhi.
> > > >   ----- Original Message -----
> > > >   From: Ryan Nelson
> > > >   To: andrew culver
> > > >   Cc: port-dreamcast@netbsd.org
> > > >   Sent: Thursday, December 06, 2001 1:14 PM
> > > >   Subject: Re: nfs root booting process..
> > > >
> > > >
> > > >   What happens when you load the kernel?
> > > >   What error message are you getting?
> > > >
> > > >
> > > >   andrew culver wrote:
> > > >
> > > >     Everything seems to be up and running fine, and since I've never
> > used a NFS for a root filesystem before, I'm a little clueless. Surely this
> > must be an over asked or previously answered question, but I beg you to
> > suffer my ignorance. After DHCP configuration, which goes very smooth, my
> > dreamcast is proud to annouce to me this:    root on
> > 192.168.1.4:/usr/export/spellcast where /usr/export/spellcast (the root fs)
> > looks more or less like this:    [ttyp0
> > prez@devstyle:/usr/export/spellcast]> ls
> > > >        altroot dev     etc     mnt     sbin    sys     usr
> > > >        bin     dist    home    root    stand   tmp     varI'm curious:
> > In the normal booting process, what is my Dreamcast supposed to be doing
> > next? What have I missed? Regards,  - Andrew.
> > > >     --
> > > >     "You must be the change you wish to see in the world." - Gandhi.
> > > > -----------------------------
> > > >
> > > >
> > >
> >
> >