About Software Images - Cisco AP776A - Nexus Converged Network Switch 5020 Configuration Manual

Cisco mds 9000 family cli configuration guide - release 4.x (ol-18084-01, february 2009)
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S e n d d o c u m e n t a t i o n c o m m e n t s t o m d s f e e d b a c k - d o c @ c i s c o . c o m
Software Images
This chapter describes how to install and upgrade Cisco MDS software images. It includes the following
sections:

About Software Images

Each switch is shipped with a Cisco MDS NX-OS or SAN-OS operating system for Cisco MDS 9000
Family switches. The Cisco MDS NX-OS consists of two images—the kickstart image and the system
image. To upgrade the switch to a new image, you must specify the variables that direct the switch to the
images.
The images and variables are important factors in any install procedure. You must specify the variable
and the image to upgrade your switch. Both images are not always required for each install.
Unless explicitly stated, the software install procedures in this chapter apply to any switch in the Cisco
Note
MDS 9000 Family.
OL-18084-01, Cisco MDS NX-OS Release 4.x
About Software Images, page 8-1
Essential Upgrade Prerequisites, page 8-3
Software Upgrade Methods, page 8-5
Automated Upgrades, page 8-7
Nondisruptive Upgrades on Fabric and Modular Switches, page 8-21
Upgrade Status Verification, page 8-20
Manual Upgrade on a Dual Supervisor Module Switch, page 8-26
Quick Upgrade, page 8-31
Downgrading from a Higher Release, page 8-31
Maintaining Supervisor Modules, page 8-32
Installing Generation 2 Modules in Generation 1 Chassis, page 8-34
Replacing Modules, page 8-34
Default Settings, page 8-35
To select the kickstart image, use the KICKSTART variable.
To select the system image, use the SYSTEM variable.
C H A P T E R
Cisco MDS 9000 Family CLI Configuration Guide
8
8-1

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