ILRI Research Computing

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rocks commands

Re-install a node

Nodes' BIOS should be set to boot from PXE (network) first and then the local hard drives. The PXE server changes the PXE configs depending on what bootaction you've set for the node in the rocks database. Therefore, to instruct a node to rebuild itself, remove its boot action:

# rocks remove host boot compute-0-6
# rocks list host boot | grep 0-6
compute-0-6:  ------

Make sure to sync the config after you change the boot action.

# rocks sync config

After a successful install the bootaction is set to "os", which configures the PXE server to instruct the node to use a local disk upon boot.