Cisco 3725 Software Configuration Guide - Page 35
Upgrading to a New Cisco IOS Release, Where to Go Next - flash
UPC - 746320810911
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Chapter 1 Understanding Interface Numbering and Cisco IOS Software Basics Upgrading to a New Cisco IOS Release Saving Configuration Changes You need to enter the copy running-config startup-config command to save your configuration changes to nonvolatile random-access memory (NVRAM), so the changes are not lost if there is a system reload or power outage. For example: Router# copy running-config startup-config Building configuration... It might take a minute or two to save the configuration to NVRAM. After the configuration has been saved, the following appears: [OK] Router# Upgrading to a New Cisco IOS Release To install or upgrade to a new Cisco IOS release, refer to Appendix B, "Formatting the Compact Flash Memory Cards." Where to Go Next Now that you have learned some Cisco IOS software basics, you can begin to configure the router using the CLI. Remember that: • You can use the question mark (?) and arrow keys to help you enter commands. • Each command mode restricts you to a set of commands. If you have difficulty entering a command, check the prompt and then enter the question mark (?) for a list of available commands. You might be in the wrong command mode or using the wrong syntax. • To disable a feature, enter the keyword no before the command; for example, no ip routing. • You need to save your configuration changes to NVRAM so the changes are not lost if there is a system reload or power outage. Proceed to Chapter 2, "Using the Setup Command Facility," to begin configuring the router. OL-1957-04 Software Configuration Guide For Cisco 2600 Series, Cisco 3600 Series, and Cisco 3700 Series Routers 1-15