How to Install or Upgade Cisco IOS with Consol connection From Hyper Terminal
When boot the IOS just hit kebord “Ctrl+Break”. You will see you are in Rommon Mode.
rommon 1 > confreg
do you wish to change the configuration? y/n [n]: y [Type : Y, and Hit Enter]
disable “diagnostic mode”? y/n [n]: [Leave “N”, Hit Enter]
enable “use net in IP bcast address”? y/n [n]: [Leave “N”, Hit Enter]
disable “load rom after netboot fails”? y/n [n]: [Leave “N”, Hit Enter]
enable “use all zero broadcast”? y/n [n]: [Leave “N”, Hit Enter]
enable “break/abort has effect”? y/n [n]: [Leave “N”, Hit Enter]
enable “ignore system config info”? y/n [n]: [Type : Y, and Hit Enter]
change console baud rate? y/n [n]: y
enter rate: 0 = 9600, 1 = 4800, 2 = 1200, 3 = 2400
4 = 19200, 5 = 38400, 6 = 57600, 7 = 115200 [1]: 7
change the boot characteristics? y/n [n]: y [Select Max Baud, “7”, Hit Enter]
enter to boot:
0 = ROM Monitor
1 = the boot helper image
2-15 = boot system
[0]: 0
[Select “0”, ROM MONITOR]
Configuration Summary
(Virtual Configuration Register: 0xb920)
enabled are:
diagnostic mode
load rom after netboot fails
console baud: 115200
boot: the ROM Monitor
do you wish to change the configuration? y/n [n]: [Leave “N”, Hit Enter]
rommon 2 > xmodem -c c1700-sv3y-mz.122-4.YB.bin [Copy and Paste here the IOS Name]
Do not start the sending program yet…
File size Checksum File name
26706468 bytes (0x1978224) 0xf886 c1700-adventerprisek9-mz.124-15.T14.bin
WARNING: All existing data in bootflash will be lost!
Invoke this application only for disaster recovery.
Do you wish to continue? y/n [n]: y [Type : Y, and Hit Enter]
Ready to receive file c1700-sv3y-mz.122-4.YB.bin …
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Now From the top of the HyperTerminal window, choose Transfer > Send File
Choose the Xmodem protocol in the Send File dialog box and click Browse in
order to select the Cisco IOS image (.bin file) that you downloaded previously.
Click Send in order to begin the Xmodem transfer.
The Xmodem file transfer begins. This transfer can take up to 2 hours,
which depends on the size of the image.
CCCCCCC……………………………………………………………….
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Now it will install the New IOS and erase old IOS.
You need to change the Baud rate to connect Hyper terminal Again.
rommon 3 > confreg
do you wish to change the configuration? y/n [n]: y [Type : Y, and Hit Enter]
disable “diagnostic mode”? y/n [n]: [Leave “N”, Hit Enter]
enable “use net in IP bcast address”? y/n [n]: [Leave “N”, Hit Enter]
disable “load rom after netboot fails”? y/n [n]: [Leave “N”, Hit Enter]
enable “use all zero broadcast”? y/n [n]: [Leave “N”, Hit Enter]
enable “break/abort has effect”? y/n [n]: [Leave “N”, Hit Enter]
enable “ignore system config info”? y/n [n]: [Type : Y, and Hit Enter]
change console baud rate? y/n [n]: y
enter rate: 0 = 9600, 1 = 4800, 2 = 1200, 3 = 2400
4 = 19200, 5 = 38400, 6 = 57600, 7 = 115200 [1]: 7
change the boot characteristics? y/n [n]: y [Select the Baud Rate 9600 “0”, Hit Enter]
enter to boot:
0 = ROM Monitor
1 = the boot helper image
2-15 = boot system
[0]: 2 [Select “2”, ROM MONITOR]
Configuration Summary
(Virtual Configuration Register: 0xb920)
enabled are:
diagnostic mode
load rom after netboot fails
console baud: 115200
boot: the ROM Monitor
do you wish to change the configuration? y/n [n]: [Leave “N”, Hit Enter]
Now you can access to the Consol connection with Hyper Terminal.
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