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Re: Network boot



On Tuesday 10 June 2003 8:31 am, Patrick McGleenon wrote:
> Hi
>
> Is 10.0.0.64 on the same subnet as your tftp server?
>
Hi Patrick,

Yes, they are both on the same subnet. Since last night ( and 8 hours sleep 
later) I re-examined my set up + with advice from Patrick Morris + yourself I 
downloaded a tftpboot image, it was at this point I then realised after 
checking my setup again that I had mis typed the  hex equivalent of the IP 
address, I had missed out the leading 0 but had an extra 0 in the middle 
....fool that I am.... 

It boots like a dream now.

> It's ages since I did it (with a PC running redhat) but I remember
> I had to explicitly add a rarp entry in the rc script and reboot
> the machine, but this was with an old kernel supporting rarp rather than
> rarpd.  The command was rarp -s <ip addr> <mac addr>
>
This confused the hell out of me at the beginning, running rarp on a 2.4 
kernel gave "this kernel does not support rarp" messages. A bit of googling 
later I found a nice post that stated "rarp is a userland process in 2.4" so 
I installed the rarpd package from the Debian site added the ethers info & 
when the SS20 was attempting to load the image I got the messages shown in 
the logs.

> It looks like the rarp packet gets sent from your PC but doesn't
> make it to the SS20 - the request comes in on if-1073744616 and the
> response goes out to 10.0.0.64 on eth0.  Not sure what if-1073744616 is
> but it's different from eth0....
>
This still comes up, but everything seems to be downloading properly..... 

> If it's working you will see a '/' cursor on the sparc20 start spinning
> and an byte count incrementing beside it
>
Thank you very much for your help it is much appreciated. I suppose I should 
document this properly, it may be useful in the future?? My next task is to 
build a filesystem to use the SS20's as an Xterm.....

Cheers
Greg


> Patrick
>
> > Hi all,
> >
> > I am attempting to remote boot a SparcStation20 from one of my other
> > debian  boxes. I have copied the working kernel from a Sparc5 to the
> > /tftpboot  directory on my server (running debian 3 on i686). I have
> > renamed it to have  the correct hex prefix as the IP address to which
> > the image should be served  but the Sparc20 does not seem to do a great
> > deal. I was hoping that at least  it would execute the kernel even
> > though I do not (yet) have a sparc  filesystem for the SS20 on the i686
> > machine. ( I am awaiting an Ultra30 for  this)
> >
> > Here is my ethers file.
> > cat /etc/ethers
> > 08:00:20:1d:ce:52       10.0.0.64
> >
> > This is from the syslog as the sparc20 does a boot net from openboot
> > prom,
> >
> > rarpd[1149]: RARP request from 08:00:20:1d:ce:52 on if-1073744616
> > rarpd[1149]: RARP response to 08:00:20:1d:ce:52 10.0.0.64 on eth0
> > rarpd[1149]: RARP request from 08:00:20:1d:ce:52 on if-1073744616
> > rarpd[1149]: RARP response to 08:00:20:1d:ce:52 10.0.0.64 on eth0
> > in.tftpd[1177]: connect from 10.0.0.64
> >
> > And here is the tftp log showing that the correct file is being sent to
> > the  SS20
> >
> > tftpd[1286]: Serving 0A000040.SUN4M to 10.0.0.64:63149
> > tftpd[1287]: Serving 0A000040.SUN4M to 10.0.0.64:63149
> > tftpd[1288]: Serving 0A000040.SUN4M to 10.0.0.64:63149
> > tftpd[1289]: Serving 0A000040.SUN4M to 10.0.0.64:63149
> > tftpd[1292]: Serving 0A000040.SUN4M to 10.0.0.64:63149
> > tftpd[1293]: Serving 0A000040.SUN4M to 10.0.0.64:63149
> > tftpd[1294]: Serving 0A000040.SUN4M to 10.0.0.64:63149
> > tftpd[1296]: Serving 0A000040.SUN4M to 10.0.0.64:63149
> > tftpd[1297]: Serving 0A000040.SUN4M to 10.0.0.64:63149
> > tftpd[1298]: Serving 0A000040.SUN4M to 10.0.0.64:63149
> >
> > On the SS20 all I get is a repeated "timeout waiting for ARP/RARP
> > packet"
> >
> > I am sure I am missing something simple, is there anything else I could
> > try  here?
> >
> > Thanks
> > Greg
> >
> >
> >
> > __________________________________________________________
> >
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http://www.Daq-Design.com

Greg Walker BEng (Hons) MIEE MIIE EngTech
Registered Linux User #226307   http://counter.li.org

Debian 3 'Woody'  i686
Kernel 2.4.19
KDE 3.0.4
XFree86 4.1.0

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