[Beowulf] Diskless booting help:

Lombard, David N dnlombar at ichips.intel.com
Thu Sep 6 10:27:43 EDT 2007


On Thu, Sep 06, 2007 at 09:55:07AM -0400, Mark Hahn wrote:
> >>what are your kernel arguments?  on a full pxe/nfsroot cluster of mine,
> >>/proc/cmdline looks like:
> >>
> >>ip=dhcp root=/dev/nfs nfsroot=10.50.5.5:/newclu/,rsize=4096,v3,nolock \
> >>rootfstype=ext2 BOOT_IMAGE=bzImage-2.6.22.2 \
> >>ip=10.50.4.1:10.50.5.5:10.50.63.254:255.255.192.0
> >>
> >>(to tell you the truth, I don't know why rootfstype=ext2 is in there -
> >>maybe it's obsolete...)
> >
> >Is there some reason for the multiple ip keywords?
> 
> hah, I'd forgotten about that too.  the first is the one I put there,
> and the second was the result of pxelinux's ipappend.  I have had 
> thoughts of using the ipappend one, rather than relying on the 
> kernel's internal dhcp.  after all, it seems kind of silly to dhcp
> as part of pxe, then again in the kernel level autoconfiguration.
> the kernel's dhcp also seems to be kinda slow.

Yes, ipappend is enticing for that reason; however HPA's stated
preference is ipappend is not used.

-- 
David N. Lombard, Intel, Irvine, CA
I do not speak for Intel Corporation; all comments are strictly my own.
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