[scyld-users] Beoboot failure

Liaw, Andy andy_liaw at merck.com
Tue Jan 31 17:30:59 PST 2006

Not that I know much, but the version should be 29czX, where "X" is
something like 3 or 5 (I think 5 is the latest).  Pentium M is essentially a
Pentium 4, so definitely IA-32.  The x86_64 is the AMD64 architecture
(cloned by Intel as EMT64).  (How did you end up with a mobile chip in a
server, anyway?)

-----Original Message-----
From: scyld-users-bounces at beowulf.org
[mailto:scyld-users-bounces at beowulf.org] On Behalf Of Gardner Pomper
Sent: Monday, January 30, 2006 6:58 PM
To: Donald Becker
Cc: scyld-users at beowulf.org
Subject: Re: [scyld-users] Beoboot failure


I am running v29cz of Scyld. Are you asking what version of beoboot? It is
from an iso image created from beosetup.

I am running 32 bit on a Intel Pentium M (is that x86_64 or IA32?)

Where do I change the TKM delay? Is that on the master before I create the
ISO image? 

Thanks! As you can tell, I am lost.

- Gardner

On 1/30/06, Donald Becker <becker at scyld.com <mailto:becker at scyld.com> >

On Fri, 27 Jan 2006, Gardner Pomper wrote:

> I am trying to get my test Scyld cluster up. I have Scyld v29cz running on

> my head node, and I am trying to get one slave node booting from a CD. The
> slave finds the master, and is assigned an IP address, but it fails with
> following error:

What version are you using? 
Are you booting from the distribution CD, or an "iso image" created from
Are you running on a x86_64 or IA32?

> Boot information received for interface eth0 from RARP:
>   Assigned IP address: <>  /
>   Server: <>   boot file
>   BProc master <>  port 2223,
>   VMA server <>  port 1556, protocol tcp.
> boot: installing module "kmonte"
> connect: no route to host 
> Boot image download failure: numerical result ouf of range

Hmmm, this appears to be a routing problem.

We have seen a similar problem once before in the quick-remaster case,
where the old default route prevents a new route from being added, even 
though the interface was shut down.  (This is a kernel routing bug that
can be worked around by explicitly deleting the old default route.)

> I hope I got all this right, because it automatically clears the screen
> reboots after 5 seconds and I haven't found a way to stop it.

The parameter 'fatal_delay' should set that timeout, and the default is
normally 120 seconds.  The only five second delay is in Two Kernel Monte, 
and that shouldn't be called.  (FYI: The TKM delay may changed with the
'bootmode' flags.  The upper 8 bits specify the delay in seconds before
switching kernels.  This is pretty much useful only for
debugging and developers, and isn't likely the delay here.) 

Donald Becker                           becker at scyld.com
<mailto:becker at scyld.com> 
Scyld Software                          Scyld Beowulf cluster systems
914 Bay Ridge Road, Suite 220           www.scyld.com <http://www.scyld.com>

Annapolis MD 21403                      410-990-9993

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