Chris Samuel wrote: >----- [EMAIL PROTECTED] wrote: >> All head nodes should have the BIOS set to localboot first. > >We set the interface on the internal cluster network to >PXE and the external to not.
I agree. but note that if you use ROCKS, it insists on the other way round: It wants to always reinstall a node on power up *unless* it has a working bootable partition, and it deliberately trashes the boot sector on a clean boot - only replacing it if the node is shut down cleanly. The key point is that any machine that has state that should be kept (like a head node) should *never* PXE boot by default - possibly not even if the primary HDD won't boot properly - only PXE boot on human intervention. PXE booting is concept of trust - that you trust the machine upstream of you to have full control of you, to delete and reinstall whatever it wants. Daniel ------------------------------------------------------------- Dr. Daniel Kidger, Quadrics Ltd. [EMAIL PROTECTED] One Bridewell St., Mobile: +44 (0)779 209 1851 Bristol, BS1 2AA, UK Office: +44 (0)117 915 5519 ----------------------- www.quadrics.com -------------------- _______________________________________________ Beowulf mailing list, Beowulf@beowulf.org To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf
