This page describes configuration to the ROCKS OS used in the cluster and how to perform certain cluster administration tasks.
PXE booting change
There is an issue with the Intel servers, in that if they try and PXE boot and they are then told by the server to boot from the hard drive, they will hang. To fix this, the actions at https://lists.sdsc.edu/pipermail/npaci-rocks-discussion/2012-May/058011.html were used, i.e.
# cp /usr/share/syslinux/chain.c32 /tftpboot/pxelinux/ # rocks add bootaction action=os args="hd0" kernel="com32 chain.c32"
Adding users is done using by running adduser or useradd on the head node as usual. However, these users then need to be replicated to each of the compute nodes. This is done by
# rocks sync users