HP XC System Software Installation Guide Version 4.0

8. Run the cluster_config utility, choosing the default answers, to create a new master
autoinstallation script (/var/lib/systemimager/scripts/base_image.master.0)
and generate an updated version of the golden image:
# /opt/hptc/config/sbin/cluster_config
9. After the cluster_config utility completes its processing, the client nodes are ready to
be installed. Do one of the following:
• If the client nodes have not been previously installed with the HP XC System Software,
see “Running the startsys Utility to Start the System and Propagate the Golden
Image” (page 117) to continue the initial installation procedure.
• If the client nodes were previously installed, issue the following sequence of commands
to set the nodes to network boot and reboot the client nodes (wait until the stopsys
command completes before invoking the startsys command):
# setnode --resync --all
# stopsys
# startsys --image_and_boot
See “Running the startsys Utility to Start the System and Propagate the Golden
Image” (page 117) to continue the initial installation procedure.
E.2.4 Example 3: Customizing Partition Sizes on a Group of Client Nodes
The procedure described in this example increases the size of the /var partition only on the
login nodes and retains the default partition sizes on the compute-only nodes. In this example,
the newly created copy of the master autoinstallation script (base_image.master.0) is modified
rather than the make_partitions.sh file described in “Example 2: Changing Default Partition
Sizes and Swap Space for All Client Nodes” (page 208); it is simpler to do it this way. The
base_image.master.0 file is not created until the cluster_config utility is run as described
in “Running the cluster_config Utility to Configure the System” (page 100).
NOTE: If you rerun the cluster_config utility at any time, the symbolic links revert to point
to the base_image.master.0 file, and you must re-create the links.
1. Begin this procedure as the root user on the head node
2. Change to the /var/lib/systemimager/scripts directory, and make a copy of the
base_image.master.0 file:
# cd /var/lib/systemimager/scripts
# cp base_image.master.0 login.master.0
3. Use the text editor of your choice to open the /var/lib/systemimager/scripts/
login.master.0 file and search for the following:
BOOT_SIZE="300
4. Add a pound sign (#) to comment out the line:
# BOOT_SIZE="300
5. Search for the block of text that is similar to this:
# BOOT_PERCENTAGE=" "
ROOT_PERCENTAGE=".60"
VAR_PERCENTAGE=".39"
6. Increase the size of the /var file system to be 50 percent of the available disk space (after
accounting for swap space), and decrease the size of the / partition accordingly. Remember
to uncomment and add a value to BOOT_PERCENTAGE:
BOOT_PERCENTAGE=".01"
ROOT_PERCENTAGE=".49"
VAR_PERCENTAGE=".50"
7. Save the changes to the file and exit the text editor.
8. Identify the node names of the login nodes:
E.2 Dynamically Configuring Client Node Disks 209