Use one of the following two procedures to upgrade the CBOS image in your
Cisco 675 or 678 DSL modem. These procedures require that you first connect
your computer serial port to the management port of the Cisco, and you have
a serial terminal emulation program that supports the xmodem file transfer
protocol.
You enter the commands shown in bold type face. The notation
"cr" is a carriage return or Enter key.
Step 1: Download the CBOS binary image from the netrack.net web site
to the computer connected to your Cisco modem's management port. The latest CBOS is here.
Expand the archive so that you have a .bin file and the release notes. Contact
NeTrack if you are in doubt as to which image to download.
Step 2: Open an xmodem-compatible terminal emulation program such as
Hyperterminal (hypertrm.exe). Ensure your terminal settings are:
38400 bits per second
No parity
8-data bits
1-stop bit
No flow control
Step 3: Connect to the Cisco modem by specifying a
direct (not dialup) connection directly to the serial port you are using (on
Windows, Direct to COM1 or Direct to COM2). Log in to the Cisco modem
Hello!
Expanding CBOS image...
CBOS v2.2.0.000
cr
User Access Verification
Password: cr
Step 4: Enter priviledged mode:
cbos>enable
Password: cr
Step 5: Set the Cisco modem to receive the new CBOS image file:
cbos#set download code
Downloading
CCCCCCCCCC
Step 6: In the terminal emulation program menus, select the menu item
to send a file using the xmodem protocol. It should then bring up a file
browser. Use the file browser to select the .bin file you downloaded in Step 1.
The transfer should take approximately 15 minutes.
-- Download complete --
Transferred 000ce000 bytes
Step 7: The Cisco modem should automatically reboot. If it does
not, enter a reboot command:
cbos# reboot Hello!
C6xx self-update code:Release 2.X.X
NOTE:Do not power off router until update is finished!
Decompressing router...
Erasing FLASH......
Programming...
Decompressing monitor...
Erasing FLASH.........
Programming...
Finished. Rebooting...
Hello!
Expanding CBOS image...
CBOS v2.X.X - Release Software
Upgrading from a non-working CBOS
It is possible for the CBOS image to become corrupted and cause the modem to
not boot fully. In such a case, you will not have a "CBOS>" prompt.
Step 1: Download the CBOS binary image from the netrack.net web site
to the computer connected your Cisco modem's management port. The latest CBOS is here.
Expand the archive so that you have a .bin file and the release notes. Contact
NeTrack if you are in doubt as to which image to download.
Step 2: Open an xmodem-compatible terminal emulation program such as
Hyperterminal (hypertrm.exe). Ensure your terminal settings are:
38400 bits per second
No parity
8-data bits
1-stop bit
No flow control
Step 3: Connect to the Cisco modem and erase the existing contents of
the firmware:
Ron960 User Interface:Build 111 (Jan 30 2000 17:25:27)
NetSpeed HomeRunner(TM); i960 JX; JA step number 03
Copyright 1997 NetSpeed Corporation
Copyright 1998, 1999 Cisco Systems
=>es 0
Erasing sector 00000000...
Sector erased
=>es 1
Erasing sector 00000001...
Sector erased
=>es 2
Erasing sector 00000002...
Sector erased
=>es 3
Erasing sector 00000003...
Sector erased
=>es 4
Erasing sector 00000003...
Sector erased
=>es 5
Erasing sector 00000003...
Sector erased
Step 4: Transfer the new CBOS image to the Cisco modem:
=>df 10008000
Downloading
CCCCCCCCCC
-- Download complete --
Transferred 000ce000 bytes
Step 5: Set the address for the new CBOS image. Note that
the last field on this command (ce000) is the number of bytes shown as
downloaded in the previous step. Leading zeros do not need to be entered.
Enter the number of bytes actually shown on your Cisco modem as downloaded, not
the number shown in this example.
=>pb 10008000 fee00000 ce000
Programming flash address 00000000 from 10008000...
Flash programmed
Step 6: Report the Cisco modem:
=>rb
Hello!
C6xx self-update code:Release 2.4.2
NOTE:Do not power off router until update is finished!
Decompressing router...
Erasing FLASH......
Programming...
Decompressing monitor...
Erasing FLASH.........
Programming...
Finished. Rebooting...
Hello!
Expanding CBOS image...
CBOS v2.4.2 - Release Software
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