HP XC System Software Installation Guide Version 3.1

# stopsys n[1-5]
# startsys --image_and_boot n[1-5]
The nodes automatically reboot when the reimaging is complete.
5. If SLURM is configured, reset the job state on nodes n1 through n5:
# scontrol update NodeName=n[1-5] State=IDLE
6.2 Reinstall Systems with HP Integrity Hardware Models
This section describes the following tasks:
• “Reinstall the Entire System” (page 110)
• “Reinstall One or More Nodes” (page 110)
6.2.1 Reinstall the Entire System
Follow this procedure to reinstall HP XC System Software Version 3.1 on systems comprised of HP Integrity
hardware models.
A reinstallation requires that all nodes are set to network boot. The setnode --resync command
automatically sets all nodes to network boot, however, the setnode --resync command requires that
Netboot is defined as the common user-specified label for the network boot option that is configured in
the EFI shell environment for each node. The procedure contained here describes how to set a consistent
user-specified label for the network boot option if it is not set to a consistent value of Netboot for all
nodes.
Follow this procedure to reinstall an entire system with HP XC System Software Version 3.1:
1. Begin this procedure as the root user on the head node.
2. Use the scontrol command to ensure that all jobs are drained from all client nodes, where nodelist
represents the entire set of nodes (for example, n[1–64]):
# scontrol update NodeName=nodelist State=DRAIN Reason="system shutdown"
3. Prepare all client nodes to network boot rather than boot from local disk:
# setnode --resync --all
4. Shut down all client nodes:
# stopsys
5. Insert the HP XC System Software Version 3.1 DVD distribution media into the DVD drive on the
head node.
6. Reboot the head node to start the Kickstart installation:
# reboot
7. Follow the instructions in this document, beginning with Chapter 2 (page 33), to complete the
installation process.
6.2.2 Reinstall One or More Nodes
Follow this procedure to prepare one or more HP Integrity client nodes to be automatically reinstalled
from the latest golden image on the image server. This procedure sets the specified nodes to network boot
from the DHCP server and automatically starts a reinstallation operation on the node or nodes by
temporarily modifying the EFI environment to allow the node or nodes to network boot.
This procedure assumes nodes 1 through 5 (n1–5) are to be reinstalled.
110 Reinstalling Version 3.1