[Beowulf] Diskless Cluster Ram Disk Login

snj78 at comcast.net snj78 at comcast.net
Fri Apr 20 17:58:58 PDT 2007

Hello everyone,

I have built a diskless cluster using FC6 x86_64 and can get a node to successfully boot up via dhcp and pxelinux.  I am not using a NFS because I want everything to reside on the node as to reduce network traffic.  Right now it just boots up to a text login screen and it won't accept any login or remote logins at all.  I have modified the rc scripts in the root file system many times, even copying the whole /etc directory straight over from the main PC, but it still won't allow any logins.  I was able to to edit the inittab file to 'wait' at the shell /bin/bash, but I still couldn't communicate with the node.  I am going to try to install SSH, make sure the daemon sshd is running on the node with pregenerated keys to allow logins without passwords, and see if that will help any.  All I want to do is be able to boot the node up and run an HPL benchmark on it.  What else do I have to do to the RAMDISK root file system to communicate with the head node and allow logins via ssh, telne
t, or even rsh so that I can get a benchmark?
Thanks in advance for any help.

Stephen Jenkins
Beowulf Senior Project Group
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