06-09-2003 10:16 AM - edited 03-02-2019 08:00 AM
Problem:
I just purchased a 4500 router (no problem there). However, somebody put 2600 IOS in the flash.
Another Problem:
The router has a password set so I can't even boot from ROM, which has the correct IOS (4500). In other words I can't go into enable mode.
One problem stops the other.
Any suggestions "ANYBODY"
Shug
Solved! Go to Solution.
06-09-2003 01:33 PM
Now really sorry, I think I've been seriously wrong all along. The above procedures work well on other routers platform like 2600 and 3600, but not on the 4500. Check out the following links for info on what to do to your box
http://www.cisco.com/en/US/products/hw/routers/ps5199/products_tech_note09186a0080094012.shtml
06-09-2003 02:30 PM
Here in lies the problem, I've been here before. Now all would have to do is "en" and get the image. The problem is I don't have the password for this router. I can't do a password recovery due to the flash issue.
sa-amb(boot)>
06-09-2003 08:07 PM
You dont have any other choice other than the PCMCIA flash card. If you have similar router with PCMCIA flash card, load the proper image on that flash card, then move that PCMCIA card to your router. Then boot.
-Deepu
06-10-2003 08:44 PM
Hi there.
The prompt "sa-amb(boot)>" to me sounds like you're in what Cisco called RXBoot. This is a level 1/2 way between ROMMON and full featured IOS. See if you can get into ROMMON (cold boot router and press the Break key on your keyboard as soon as you see some message on the screen. I remebred that if you're using standard MS Hyper Terminal then Break won't work). ROMMON mode is the one where you can specify the values of config register. Specify a config register value of 0x2141 and then reboot your router. The value "4" specify "ignore config in NVRAM" and the last value "1" specify boot into RXBoot. You'll end up with the prompt "sa-amb(boot)>" like you did before and from here you should be able to get into priviledge mode without having to specify a password (default value). Post a reply once you have this working and I'll show you how to upload new IOS without XModem.
06-09-2003 02:39 PM
Nothing to be sorry about, I'm thankful for any and all help.
06-09-2003 01:40 PM
alias set and display aliases command
boot boot up an external process
break set/show/clear the breakpoint
confreg configuration register utility
cont continue executing a downloaded image
context display the context of a loaded image
cookie display contents of cookie PROM in hex
dev list the device table
dir list files in file system
dis disassemble instruction stream
dnld serial download a program module
frame print out a selected stack frame
help monitor builtin command help
history monitor command history
meminfo main memory information
repeat repeat a monitor command
reset system reset
set display the monitor variables
stack produce a stack trace
sync write monitor environment to NVRAM
sysret print out info from last system return
unalias unset an alias
unset unset a monitor variable
rommon 2 >
06-09-2003 04:25 PM
is it possible to setup a small tftp server and use tftpdnld from rommon ?
or isnt that commend supported in your bootstrap version ?
You could grab a spare laptop and setup the server on that.
06-10-2003 03:41 AM
Ok
1. tftp dpwnload will not work on a 4500 only on 2600's
2. If you were getting a [assword prompt earlier there must be a good image on it .
I saw eralier in the post you got the box to boot to router(boot)., this is good , get to this again dh a sh flash and post the sh flash .
06-10-2003 05:19 AM
Here in lies the problem. Someone load 2600 IOS onto this 4500 (I don't know why)
sa-amb(boot)>show flash
System flash directory:
File Length Name/status
1 4428372 c2600-i-mz.121-7
[4428436 bytes used, 3960172 available, 8388608 total]
8192K bytes of processor board System flash (Device not programmable)
sa-amb(boot)>
06-10-2003 05:23 AM
howeever, I can't get past the above due to this password issue:
sa-amb(boot)>show flash
System flash directory:
File Length Name/status
1 4428372 c2600-i-mz.121-7
[4428436 bytes used, 3960172 available, 8388608 total]
8192K bytes of processor board System flash (Device not programmable)
sa-amb(boot)>en
Password:
% Password: timeout expired!
Password:
% Password: timeout expired!
Password:
% Password: timeout expired!
% Bad passwords
sa-amb(boot)>en
Password:
Password:
Password:
% Bad passwords
sa-amb(boot)>
As you can see from a "sh ver"
sa-amb(boot)>show ver
Cisco Internetwork Operating System Software = 1200, 3 = 2400 [0]: 115C, 0 fra
IOS (tm) 4500 Bootstrap Software (C4500-BOOT-M), Version 10.3(7), RELEASE SOFTWA
RE (fc1)
any recommendations?
06-10-2003 05:12 AM
the system doesn't reconize the tftp portion of 'tftpdnld'. The system can't seem to find xmodem either.
06-10-2003 05:46 AM
Do the following:
1. break into rommon (press Break key during first 60 seconds
2. rommon1>confreg 0x2142
3. after setting above value to config register, it will prompt you to reset the router. Once its reset, the router will now boot into Rxboot mode (Router(boot)>) after ignoring your configuration files. Now it wont ask for any password.
4. configure an ip address for the ethernet interface and connect it to tftp server, and download new ios into flash using "copy tftp flash" command
Hope that helps!
06-10-2003 06:03 AM
See the show flash and show ver commands.
sa-amb(boot)>show flash
System flash directory:
File Length Name/status
1 4428372 c2600-i-mz.121-7
[4428436 bytes used, 3960172 available, 8388608 total]
8192K bytes of processor board System flash (Device not programmable)
sa-amb(boot)>en
Password:
% Password: timeout expired!
Password:
% Password: timeout expired!
Password:
% Password: timeout expired!
% Bad passwords
sa-amb(boot)>en
Password:
Password:
Password:
% Bad passwords
sa-amb(boot)>
As you can see from a "sh ver"
sa-amb(boot)>show ver
Cisco Internetwork Operating System Software = 1200, 3 = 2400 [0]: 115C, 0 fra
IOS (tm) 4500 Bootstrap Software (C4500-BOOT-M), Version 10.3(7), RELEASE SOFTWA
RE (fc1)
06-10-2003 06:07 AM
it continues to loop through the post below when I change to 0x2142 (I then did the break):
System Bootstrap, Version 5.3(16) [richardd 16], RELEASE SOFTWARE (fc1)
Copyright (c) 1996 by cisco Systems, Inc.
C4500 processor with 32768 Kbytes of main memory
loadprog: error - Invalid image for platform
e_machine = 43, cpu_type = 20
boot: cannot load "flash:"
System Bootstrap, Version 5.3(16) [richardd 16], RELEASE SOFTWARE (fc1)
Copyright (c) 1996 by cisco Systems, Inc.
C4500 processor with 32768 Kbytes of main memory
monitor: command "boot" aborted due to user interrupt
rommon 1 >
rommon 1 >
06-10-2003 06:21 AM
Change the config setting to 0x2141 (confreg 0x2141). This should take you to Rxboot mode.
HTH
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