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3.6 Preparing the Host – Offline Method

The offline method is available for configurations where the hosts in your environment do not have internet access in order to download the Moab HPC Suite RPM dependencies.

This topic describes how to deploy the moab-offline tarball so that you can install various Moab HPC Suite components and their dependencies on all the hosts in your environment.

On each host (physical machine), do the following:

Update your system software to the latest version.
```
[root]# yum update
```
Ensure hostname resolution for all hosts.

Each host should be resolvable from all other hosts in the cluster. Usually this is implemented by having all hosts in DNS. Alternatively, each host may include all other hosts (with the correct IP address) in its /etc/hosts file.
If you have not already done so, copy the moab-offline tarball to the host. For example, copy it from a CD, USB drive, or Shared network drive. See 3.5 Creating the moab-offline Tarball for instructions on how to create the tarball.
Place the moab-offline tarball in the /opt directory and enter that directory.
```
mv moab-offline.tgz /opt

cd /opt
```
Untar the moab-offline directory.
```
tar xvzf moab-offline.tgz
```
Copy the moab-offline.repo into place.
- Copy to yum.repos.d.
```
cp moab-offline/moab-offline.repo /etc/yum.repos.d/
```
- Update the cache.
```
yum clean all
```
Continue with instructions to install the Moab HPC Suite components. See 3.2 RPM Installations.