Updated the README for cluster_create.sh

Signed-off-by: Eric Coulter <[email protected]>

README.md

@@ -44,28 +44,32 @@ To build your own Virtual cluster, starting on your localhost:
      (or ensure that they're available in the shared filesystem).
    * For other modifications, feel free to get in touch!
 
-1. Run ```headnode_create.sh``` - it *will* require an ssh key to exist in
+1. Run ```cluster_create.sh``` - it *will* require an ssh key to exist in
    ```${HOME}/.ssh/id_rsa.pub```. This will be the key used for your jetstream
    instance! If you prefer to use a different key, be sure to edit this
    script accordingly. The expected argument is only the headnode name, 
    and will create an 'm1.small' instance for you.
 
-   ```./headnode_create.sh <headnode-name>```
+   ```./cluster_create.sh <headnode-name>```
 
    Watch for the ip address of your new instance at the end of the script!
+   It is worth double-checking the output of the script to see that the ansible
+   playbook for compute image creation ran successfully - no failed tasks means
+   that the image for your compute nodes should be available.
+
 1. The headnode_create script has copied everything in this directory 
-   to your headnode. You should now be able to ssh in
+   to your headnode EXCEPT your local openrc file. You should now be able to ssh in
    as the centos user, with your default ssh key: 
 
    ```ssh centos@<new-headnode-ip>```
 
-1. Now, in the copied directory, *on the headnode*, run the install.sh script
-   with sudo:
+1. Your cluster is now up and running. You can submit jobs via sbatch or srun. If you
+   see issues with running jobs, there are useful logs in
+   ``` /var/log/slurm/slurm_elastic```
+   and
+   ``` /var/log/slurm/slurmctld.log```
 
-   ```sudo ./install.sh```. 
 
-   This script handles all the steps necessary to install slurm, with
-   elastic nodes set. 
 
 Useage note:
 Slurm will run the suspend/resume scripts in response to