[K12OSN] FW: DHCP Option128/129 MOPTS - not working

Jim McQuillan jam at mcquil.com
Thu Aug 18 19:02:19 UTC 2005


Peter,

Which LTSP kernel are you using?

the ability to alter the mount options was added fairly recently.
vmlinuz-2.4.26-ltsp-3, I believe.  Anything prior to that version will
ignore that new option.

Jim McQuillan
jam at Ltsp.org



On Thu, 18 Aug 2005, Peter Van den Wildenbergh wrote:

>
> Hi All :
>
> We are struggling with option 128 / 129 on a Novell Netware 6 DHCP server.
> What I would like to do is using TCP for NFS and not UDP.
>
> I've read this:
> http://wiki.ltsp.org/twiki/bin/view/Ltsp/KernelOptions#Etherboot
>
> >From what I can see the root filesystem get mounted by the cmd:
> mount -n -o ${MOPTS} ${NFS_IP}:${NFS_DIR} /mnt
> in linuxrc.
>
> We've put the following in 128/129
> 128    e4:45:74:68:00:00
> 129    MOPTS=nolock,ro,proto=tcp
>
> (Found this on this list Dec 1 2004 - solved pivot_root hang)
>
> According to ethereal we are still using UDP :-(
>
> The reason for all this is to get (in case you want to know)
> a server running K12LTSP with NX on one end and
> clients on the other end of a 1MB pipe.
> All works fine in a test lab were server and client are close to each other
> as soon as we put the client a couple hops further away
> the client boot process hangs on the pivot_root.
>
> Any suggestions?
>
> Peter
>
> PS Is there a very detailed howto available on how to alter linuxrc?
> so I can hardcode the proto=tcp... or at least get a couple extra
> echo statements in the script...
>
>
>
>
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