[K12OSN] Etherboot, kernel panic, 8139

[Edward Holcroft]

In my case I have a fully isolated test environment in which I  
experience this problem, so it's not an IP conflict. It's a real show- 
stopper for me as I have close to 1000 clients out there (and  
growing) that I want to upgrade to k12 v5. On the LTSP list Jim was  
saying it may have to do with the 2.6 kernel that LTSP 4.2 uses, but  
not really a specific answer.

Any other ideas?

ed
On 27 Jul 2006, at 2:24 PM, Eric Brown wrote:

> In my lab this last year, I started getting those same errors on
> random machines.  Usually, a reboot or two would get things going
> again.  Sometimes it would only be one client on the network, other
> times it would be a bunch of them.
>
> I would replace a network cable, swap out a thin client, but I'd still
> get these errors in a random client.
>
> My k12 lab is closed off from the rest of the network behind my
> server.  Someone had ran a patch cable from the switch to the rest of
> the network, so my network which was supposed to be closed no longer
> was.  I think that my clients were expirencing an IP conflict between
> my server's internal nic and the district's router.
>
> If you're sure this isn't your problem, you could try using a boot  
> floppy.
>
> Eric
>
> On 7/27/06, Edward Holcroft <edward at netday.org.za> wrote:
>> Hi list
>>
>> On k12 v5rc2 I get the following message when using Etherboot cards
>> (Realtek 8139D chipset):
>>
>> RAMDISK: Couldn't find a valid RAM disk image starting at 0
>> Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-
>> block (1.0)
>>
>> If I plug in a PXE card on the same client, it works fine. It happens
>> with an upgrade from 4.4.1 of k12 as well as with a clean install.
>> Works perfectly on k12 4.4.1.
>>
>> Is there perhaps an option-129 that may help? I've already tried
>> 8139cp that Jim suggested on the ltsp list. No go.
>>
>> ed
>>
>> _______________________________________________
>> K12OSN mailing list
>> K12OSN at redhat.com
>> https://www.redhat.com/mailman/listinfo/k12osn
>> For more info see <http://www.k12os.org>
>>
>
> _______________________________________________
> K12OSN mailing list
> K12OSN at redhat.com
> https://www.redhat.com/mailman/listinfo/k12osn
> For more info see <http://www.k12os.org>

Edward Holcroft
Executive Director: NetDay South Africa