HP XC System Software Installation Guide Version 2.1

3. Prepare the specified nodes to n etwork boot instead of b ooting fro m local disk:
# setnode --resync n[1-5]
4. Reboot nodes n1 through n5:
# stopsys n[1-5]
# startsys n[1-5]
The nodes automatically reboot when the reimaging is complete.
5. Reset the job state on nodes n1 thr o ugh n5:
# scontrol update NodeName=n[1-5] State=IDLE
K.2 Reinstalling Itanium-Based Systems
The information in this section d escribes the following tasks:
• How to reinstall the entire system (Section K.2.1)
• How to reinstall one or more nodes (Section K.2.2).
K.2.1 Reinstalling the Entire System
A reinstallation requires that all no des 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 Itanium-based system with HP XC System Software
Ver s ion 2 . 1:
1. Begin this procedure as the root user on the head node.
2. Use the scontrol comm and 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. Ensure that a commo n network boo t label is defined for all n odes in the EFI environ ment:
a. Enter the following command to display the network boot label for all nodes:
# cexec -a -f 1 "efibootmgr"
n1: BootCurrent: 0000
n1: BootOrder: 0000,0001
n1: Boot0000* Linux
n1: Boot0001* Netboot
1
n2: BootCurrent: 0000
n2: BootOrder: 0000,0001
n2: Boot0000* Linux
n2: Boot0001* eth1boot
2
n3: BootCurrent: 0000
n3: BootOrder: 0000,0001
n3: Boot0000* Linux
n3: Boot0001* eth1boot
2
1 The network boot op tion label for node n1 is set to Netboot.
2 The netwo rk boot option label for nodes n2 and n3 is set to eth1boot.These
values m ust be consistently named Netboot for the setnode command
to operate properly.
b. Do one of the following:
K-2 Reinstalli ng An XC System with Version 2.1