Upgrade Methods - HP 12500 Configuration Manual

Figure 36 System startup process
Start
BootWare runs
Press Ctrl+B
promptly?
Startup software images
run
System starts up and CLI
appears.
Finish

Upgrade methods

Upgrading method
Upgrading from the CLI:
Non-ISSU approach
ISSU approach
Upgrading from the Boot
menu
This chapter covers only the non-ISSU approach to upgrading software from the CLI.
Yes
No
Software types
•
BootWare image
•
Comware images
(excluding patches)
Comware images
•
BootWare image
•
Comware software
images
Enter Boot menu to
upgrade BootWare or
startup software
images
Remarks
You must reboot the entire device to complete the
upgrade. This approach causes service
interruption.
The ISSU approach enables a software upgrade
without service interruption.
Use this approach for an IRF fabric or
MPU-redundant device.
For more information about ISSU, see
"Performing ISSU."
Use this method when the device cannot correctly
start up.
Upgrade an IRF fabric from the CLI rather than
the Boot menu.
The Boot menu approach requires that you
upgrade the member devices one by one and has
a larger impact on services than the CLI approach.
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IMPORTANT: