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Cisco 3900 Series, Cisco 2900 Series, and Cisco 1900 Series Integrated Services Routers Generation 2 Software Configuration Guide
Chapter Upgrading the Cisco IOS Software
How to Upgrade the Cisco IOS Image
Step 10
exit
Use this command to exit global configuration mode:
Router(config)#
exit
Router#
Step 11
copy run start
Use this command to copy the running configuration to the startup configuration:
Router#
copy run start
What to Do Next
Proceed to the
“Saving Backup Copies of Your New System Image and Configuration” section on
Saving Backup Copies of Your New System Image and Configuration
To aid file recovery and to minimize downtime in the event of file corruption, we recommend that you
save backup copies of the startup configuration file and the Cisco IOS software system image file on a
server.
Tip
Do not erase any existing backup copies of your configuration and system image that you saved before
upgrading your system image. If you encounter serious problems using your new system image or startup
configuration, you can quickly revert to the previous working configuration and system image.
For more detailed information, see the “Managing Configuration Files” chapter and the “Loading and
Maintaining System Images” chapter of the
Cisco IOS Configuration Fundamentals Configuration
Guide
at:
http://www.cisco.com/en/US/docs/ios/fundamentals/configuration/guide/12_4/cf_12_4_book.html.
To save backup copies of the startup configuration file and the system image file, complete the following
steps.
SUMMARY STEPS
1.
enable
2.
copy
nvram:startup-config
{
ftp:
|
rcp:
|
tftp:
}
3.
dir flash0:
4.
copy
flash0:
{
ftp:
|
rcp:
|
tftp:
}