[Beowulf] Changing BIOS settings on nodes
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Honest Guvnor honestguvnor at googlemail.comWed Sep 26 02:14:44 PDT 2007
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Greetings, We would like to change the BIOS settings on our compute nodes to enable PXE booting which is disabled by default (AMIBIOS on Intel D875PBZ Pentium 4 motherboard). Reading and writing with /dev/nvram seems to work as expected but reboot fails because of a test against the checksum of the previous BIOS settings. Is there a way round this? The nodes have no video card, there is no support for a serial console in the BIOS but there are floppy disk drives. Any thoughts on alternative ways to change the BIOS? We have the fallback option of putting an Etherboot floppy disk in every node when we want to reinstall but would like to avoid this if we can, Andy.
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