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Reloading to rommon 1 > mode-c4500

coolboarderguy
Level 1
Level 1

Hi All,

when reloading a c4500 router with the following cmd,

Router(boot)>en

Router(boot)#reload

Proceed with reload? [confirm]

it goes to rommon 1 > mode. Please see below for full output. I had successfully erased the nvram data just prior to what is below. I was expecting it to reload the IOS again, not go into rommon mode. What am I not understanding..? Cheers.

coolboarderguy...

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]: y

disable "diagnostic mode"? y/n [n]: y

enable "use net in IP bcast address"? y/n [n]: y

enable "load rom after netboot fails"? y/n [n]: y

enable "use all zero broadcast"? y/n [n]: y

disable "break/abort has effect"? y/n [n]: y

enable "ignore system config info"? y/n [n]: n

change console baud rate? y/n [n]: n

change the boot characteristics? y/n [n]: n

Configuration Summary

enabled are:

use net in IP bcast address

load rom after netboot fails

use all zero broadcast

console baud: 9600

boot: the ROM Monitor

do you wish to change the configuration? y/n [n]: n

You must reset or power cycle for new config to take effect

rommon 3 > reset

System Bootstrap, Version 5.3(16) [richardd 16], RELEASE SOFTWARE (fc1)

Copyright (c) 1996 by cisco Systems, Inc.

C4500 processor with 16384 Kbytes of main memory

rommon 2 > boot

program load complete, entry point: 0x80008000, size: 0x34cec0

Cisco Internetwork Operating System Software

IOS (tm) 4500 Software (C4500-BOOT-M), Version 11.1(7), RELEASE SOFTWARE (fc2)

Copyright (c) 1986-1996 by cisco Systems, Inc.

Compiled Wed 23-Oct-96 22:37 by tej

%LINK-5-CHANGED: Interface Ethernet0, changed state to administratively down

%LINK-5-CHANGED: Interface Ethernet1, changed state to administratively down

Router(boot)>en

Router(boot)#reload

Proceed with reload? [confirm]

%SYS-5-RELOAD: Reload requested

System Bootstrap, Version 5.3(16) [richardd 16], RELEASE SOFTWARE (fc1)

Copyright (c) 1996 by cisco Systems, Inc.

C4500 processor with 16384 Kbytes of main memory

rommon 1 >

rommon 1 >

5 Replies 5

thisisshanky
Level 11
Level 11

Probably the IOS in flash is corrupted, or you accidentally erased flash image ?? You can restore it if you have a backup copy of a 4500 image with you or you can download one off CCO software center using your CCO login and password. Load that software into a TFTP server (running on PC), connect a cross over cable to the router's e0 or e1 interface and when you boot into

Router(boot)# mode, assign an IP to ethernet interface and do a "copy tftp flash" to download the image from TFTP server into flash. Once the download is complete, a reload of the router should restore the box.

Sankar Nair
UC Solutions Architect
Pacific Northwest | CDW
CCIE Collaboration #17135 Emeritus

Hello,

can you try to manually load the image with the ´boot flash:xxxx´ command (where xxxx is the name of the image as seen when the command dir flash: is issued) ?

Also, try and set the configuration register value to '0x102.

Another possibility is that you have no valid image, check this document for the ROMMON recovery procedure:

CISCO 4000 SERIES ROUTERS

ROMmon Recovery for the Cisco 4500 and 4700 Series Routers

http://www.cisco.com/en/US/partner/products/hw/routers/ps5199/products_tech_note09186a0080094012.shtml

HTH,

GP

Hi All,

sorry, should have mentioned that I can manually boot with cmd, "boot flash:" from within ronmon. So, that means the image is fine, yes.? Anything else..? Not worried about saving anything from the config file etc. Was just wanting to set it back to defaults with the write erase(which I did) and have it successfully boot. Cheers.

EDIT:p.s. how do I do the following..?

Also, try and set the configuration register value to '0x102.

coolboarderguy...

Hi All,

getting this now,

System Bootstrap, Version 4.14(7), SOFTWARE

Copyright (c) 1986-1994 by cisco Systems

4000 processor with 16384 Kbytes of main memory

Booting xx-bpx.102-9 from Flash address space rrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr

rrrrrrrrrr

[OK - 2909632/16076382 bytes]

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#Bus Error control register: 0x0fb0f0a9

Bus Error, address: 0x1000000 at 0x100a51e (PC)

Ouch!! Cheers.

coolboarderguy...

check your boot statement in the configuration.

Is it pointing to the correct file?