Cisco 2800 Series Manual page 243

Upgrading the System Image
Prerequisites
Choose the Cisco IOS release and system image to which you want to upgrade. See the
About Upgrading the System Image" section on page
SUMMARY STEPS
1.
2.
3.
4.
5.
DETAILED STEPS
Select the system image in the Download Software Area at the following URL:
Step 1
http://www.cisco.com/kobayashi/sw-center/index.shtml.
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.
Write down the minimum memory requirements for the image, as displayed in the File Download
Step 2
Information table.
show version
Step 3
Use this command to display the router processor and memory (shown in bold text in the following
sample output):
Router# show version
Cisco IOS Software, 2800 Software (C2800-IPBASE-M), Version 12.3(2), [fc3]
Copyright (c) 2004 by Cisco Systems, Inc.
Compiled Thu 11-Aug-04 18:15
ROM: System Bootstrap, Version 12.3(2)
Router1 uptime is 1 day, 23 hours, 15 minutes
System returned to ROM by reload at 13:11:44 UTC Fri Mar 12 2004
Running default software
Cisco 2800(revision 2.0) with 231424K/30720K bytes of memory.
Processor board ID FHH0746C042
2 Gigabit Ethernet interfaces
2 Serial interfaces
2 Channelized E1/PRI ports
2 Channelized T1/PRI ports
Select the system image in the Download Software Area at the following URL:
http://www.cisco.com/kobayashi/sw-center/index.shtml.
Write down the minimum memory requirements for the image, as displayed in the File Download
Information table.
show version
Add the memory sizes that are displayed in the show version command output to calculate your
router's DRAM size.
Compare the calculated DRAM size with the minimum memory requirements from
a. If the DRAM is equal to or greater than the new system image's minimum memory
requirements, then proceed to the
Image" section on page
If the DRAM is less than the new system image's minimum flash requirements, then you must
b.
upgrade your DRAM. See the hardware installation guide for your router.
2.
"Ensuring Adequate Flash Memory for the New System
6.
How to Upgrade the System Image
"Information
Step 2.
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