Specifying The Cisco Ios Image Used To Boot The System; Software Commands Associated With Flash Memory - Cisco GSR12/60 - 12012 Router -AnyLAN, SONET/SDH Installation And Configuration Manual

Implementing Other Configuration Tasks
For complete command descriptions and configuration information, refer to the
Configuration Fundamentals Command Reference and the Configuration Fundamentals
Configuration Guide. (For information on obtaining these publications, refer to the section
"If You Need More Configuration Information," later in this chapter.)

Specifying the Cisco IOS Image Used to Boot the System

Use the following series of commands to specify that a Cisco IOS software image is
bootable. (In this example, the file named new.image.) Note that, since the configuration
register must be set to 0x2102, the config-register command is part of the sequence.
Router# config terminal
Router(config)# no boot system
Router(config)# boot system flash slot0:new.image
Router(config)# config-register 0x2102
Ctrl-z
Router# copy running-config startup-config
Router# reload
When the system reloads, it will boot the Cisco IOS software image from the Flash memory
card in slot 0.
Note
system to boot a default Cisco IOS software image from Flash memory if a network boot
fails, the value 0x0100 instructs the system to ignore a break, and the value 0x0002 instructs
the system to look in Flash memory for this default Cisco IOS software image.

Software Commands Associated with Flash Memory

Following are software commands related to the onboard Flash memory on the RP and the
Flash memory cards.
You can determine which memory media you are accessing using the pwd command as
follows:
Router# pwd
slot0
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In the preceding example, the configuration register value 0x2000 instructs the