Procedure For The Xmodem Command - Cisco Router 3600 Hardware Installation Manual

Recovering Cisco IOS Software Images

Procedure for the xmodem Command

To copy a Cisco IOS image from a console to Flash memory, perform the following procedure.
File transfer from a console is slow and will take many minutes.
Note
Connect the console using the instructions in the
Step 1
on page
Power on the router. The power-on self-test diagnostics run and the boot ROM searches for a valid boot
Step 2
image and Cisco IOS image in Flash memory. If the boot image and Cisco IOS image are not found, the
ROM monitor prompt is displayed:
rommon 1>
Step 3 Enter the xmodem command and the name of the source file containing the Cisco IOS image:
rommon 1> xmodem filename
Step 4 The source file is searched for and found. Messages similar to the following appear:
Do not start upload program yet...
File size
2537948 bytes
WARN: This operation will ERASE bootflash. If the xmodem
download to bootflash fails, you will lose any good image
you may already have in bootflash.
Invoke this application only for disaster recovery.
Do you wish to continue? [yes/no]:
Enter yes to copy the Cisco IOS image into Flash memory. Messages similar to the following appear:
Step 5
Ready to receive file prog ...
Erasing flash at 0x3000000
program flash location 0x3000000
Transfer complete!
The router is now ready to boot from the Cisco IOS image. Enter the
reboot the router.
If you have set the console speed to 115200, you may wish to reset it to the previous speed or to the
Note
factory default speed (typically 9600 bps). See the
page
Cisco 3600 Series Routers Hardware Installation Guide
B-10
3-43.
Checksum
(0x26b9dc)
B-7.
"Connecting to a Console Terminal or Modem" section
File name
3640-boot-l
"Configuration Register Commands" procedure on
Appendix B Using the ROM Monitor
ROM monitor command to
reset
OL-2056-05