Cisco 2610 Hardware Installation Guide - Page 88
Recovering Cisco IOS Software Images - factory reset
UPC - 746320089614
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Recovering Cisco IOS Software Images Appendix B Using the ROM Monitor enter to boot: 0 = ROM Monitor 1 = the boot helper image 2-15 = boot system [0]: 0 Configuration Summary enabled are: diagnostic mode break/abort has effect console baud: 9600 boot: the ROM Monitor do you wish to change the configuration? y/n [n]: You must reset or power cycle for new config to take effect Modifying the Configuration Register by Hexidecimal Entry Entering the confreg command plus a hexidecimal value changes the contents of the configuration register. The syntax is confreg [hexnum]; values entered are always interpreted as hexadecimal. The following example changes the value of the configuration register to the factory default: rommon 7> confreg 0x2102 You must reset or power cycle the router for new configuration to take effect. Recovering Cisco IOS Software Images If your Cisco router experiences difficulties and no longer contains a valid Cisco IOS software image in flash memory, you can download a new Cisco IOS image using one of the following ROM monitor commands: • xmodem-(All Cisco 2600 series routers) Use this command to copy a Cisco IOS image from the console, if the computer attached to your console has a terminal emulator with Xmodem capability. See the "Copying an Image from the Console Using the xmodem Command" procedure on page B-9. Note Downloading a Cisco IOS image from a console is very slow. This procedure should be used only in an emergency and is not recommended for normal Cisco IOS image upgrades. For the fastest possible download from a console, set the console speed to 115200 bps by using the confreg ROM monitor command. See the "Configuration Register Commands" procedure on page B-7. • tftpdnld-(Except Cisco 2691) Use this command to copy a Cisco IOS image from a TFTP server that is accessible through the FastEthernet 0/0, Ethernet 0/0, or Token Ring 0/0 port. See the "Copying an Image from a TFTP Server Using the tftpdnld Command" procedure on page B-10. Cisco 2600 Series Routers Hardware Installation Guide B-8 OL-2171-06