[Oscar-users] Problems encountered installing an OSCAR 2.1 cluster

[Julia Wang]

Hi,

I'm building a small Oscar 2.1 cluster on top of RedHat 7.3 with 11 nodes. After Step 6, Setup Networking, the computing nodes were successfully booted up via PXE boot. I then tried to reboot the computing node from it's hard drive. Here are the things that Failed:

1. Bringing up the interface of eth0 Failed.

I checked /etc/sysconfig/network-scripts/ifcfg-eth0, it had BOOTPROTO=dhcp. I edited this file, changed BOOTPROTO=none and added entries for IPADDR, BROADCAST, NETMASK and NETWORK. Then I rebooted the system from hard drive again and the eth0 interface became OK.

On Step 4, build OSCAR Client Image, the IP Assignment Method, I picked the "static_dhcp". Do I suppose to pick "static" instead?

2. Starting the portmapper OK, starting the NFS service OK, the NFS mounting the /home from the sever Failed. The error messages:

mount: RPC: portmapper failure,
RPC: unable to receive,
Mounting NFS filesystems: Failed.

Once the system was up, logged on as root, "df -k" showed the local file systems. I then typed "mount -a", and "df -k" showed the server's /home mounted on /home.

After the RedHat 7.3 installation on the server, I edited the /etc/hosts.allow file according to the "How to Install an OSCAR Cluster", D.5, TCP Wrappers (P38). The hosts.allow file looks like this:

#allow NFS service to cluster.lnx
portmap: .cluster.lnx
rpc.mountd: .cluster.lnx

#allos ssh logins from anywhere
sshd: ALL

cluster.lnx is the domain name I had for the private network of the computing nodes.

Thank you in advance for any help you can provide.

Regards,
Julia Wang


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