Upgrading the System Image
Information About Upgrading the System Image
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OL-5595-01
Information About Upgrading the System Image
To upgrade the system image on your router, you should understand the following concepts:
•
Why Would I Upgrade the System Image?, page 2
•
Which Cisco IOS Release Is Running on My Router Now?, page 2
•
How Do I Choose the New Cisco IOS Release and Feature Set?, page 2
•
Where Do I Download the System Image?, page 2
Why Would I Upgrade the System Image?
System images contain the Cisco IOS software. Your router already has an image on it when you receive
it. Nevertheless, you may want to load a different image onto the router at some point. For example, you
may want to upgrade your software to the latest release, or you may want to use the same Cisco IOS
release for all the routers in a network. Different system images contain different sets of Cisco IOS
features.
Which Cisco IOS Release Is Running on My Router Now?
To determine which Cisco IOS release is currently running on your system, and the filename of the
system image, enter the show version command in user EXEC or privileged EXEC mode.
How Do I Choose the New Cisco IOS Release and Feature Set?
To determine which Cisco IOS releases and feature sets support your platform and required features, go
to Cisco Feature Navigator at
http://www.cisco.com/go/fn. You must have an account on Cisco.com. If
you do not have an account or have forgotten your username or password, click Cancel at the login
dialog box and follow the instructions that appear.
For more detailed information on choosing the new Cisco IOS release and feature set, see the How to
Choose a Cisco IOS Software Release tech note.
Where Do I Download the System Image?
You must have an account on Cisco.com to use the following websites. If you do not have an account or
have forgotten your username or password, click Cancel at the login dialog box, and follow the
instructions that appear.
If you know which Cisco IOS release and feature set you want to download, go to the Download Software
Area at
http://www.cisco.com/kobayashi/sw-center/index.shtml.
If you want more information before selecting the Cisco IOS release and feature set, go to the Software
Center at
http://www.cisco.com/kobayashi/sw-center/index.shtml.
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