Cisco 1841 hang

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Feb 22nd, 2009
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I got a new cisco 1841 recently. Everything went fine during configuration then suddenly I got the following:


libavas#

*Feb 21 10:52:47.043: %FILESYS-5-CF: External CompactFlash removed

System Bootstrap, Version 12.4(13r)T8, RELEASE SOFTWARE (fc1)

Technical Support: http://www.cisco.com/techsupport

Copyright (c) 2008 by cisco Systems, Inc.

PLD version 0x10

GIO ASIC version 0x127

c1841 platform with 196608 Kbytes of main memory

Main memory is configured to 64 bit mode with parity disabled



Upgrade ROMMON initialized

boot: cannot open "flash:"

boot: cannot determine first executable file name on device "flash:"


System Bootstrap, Version 12.4(13r)T8, RELEASE SOFTWARE (fc1)

Technical Support: http://www.cisco.com/techsupport

Copyright (c) 2008 by cisco Systems, Inc.


Both copies of nv_flash are corrupted


Warning: monitor nvram area is corrupt ... using default values

Warning: Because of corrupted monitor nvram, falling to Readonly ROMMON


System Bootstrap, Version 12.4(13r)T9, RELEASE SOFTWARE (fc1)

Technical Support: http://www.cisco.com/techsupport

Copyright (c) 2008 by cisco Systems, Inc.

PLD version 0x10

GIO ASIC version 0x127

c1841 platform with 196608 Kbytes of main memory

Main memory is configured to 64 bit mode with parity disabled



Readonly ROMMON initialized

rommon 1 >

rommon 1 >

rommon 1 >

rommon 1 > reset


After that, I'm not able to access the router, it got hang everytime I booted the router as shown below:


System Bootstrap, Version 12.4(13r)T9, RELEASE SOFTWARE (fc1)

Technical Support: http://www.cisco.com/techsupport

Copyright (c) 2008 by cisco Systems, Inc.

PLD version 0x10

GIO ASIC version 0x127

c1841 platform with 196608 Kbytes of main memory

Main memory is configured to 64 bit mode with parity disabled



Readonly ROMMON initialized

program load complete, entry point: 0x8000f000, size: 0xcb80

program load complete, entry point: 0x8000f000, size: 0xcb80


program load complete, entry point: 0x8000f000, size: 0xf64f68

Self decompressing the image : ############################################################################################################################################################ [OK]


Smart Init is enabled

smart init is sizing iomem

ID MEMORY_REQ TYPE

0X003AA110 public buffer pools

0X00211000 public particle pools

0X04C8 0X00077D00 Card in slot 0

0X000021B8 Onboard USB


If any of the above Memory Requirements are

"UNKNOWN", you may be using an unsupported

configuration or there is a software problem and

system operation may be compromised.


Allocating additional 13997651 bytes to IO Memory.

PMem allocated: 178257920 bytes; IOMem allocated: 23068672 bytes


Restricted Rights Legend


Use, duplication, or disclosure by the Government is

subject to restrictions as set forth in subparagraph

(c) of the Commercial Computer Software - Restricted

Rights clause at FAR sec. 52.227-19 and subparagraph

(c) (1) (ii) of the Rights in Technical Data and Computer

Software clause at DFARS sec. 252.227-7013.


cisco Systems, Inc.

170 West Tasman Drive

San Jose, California 95134-1706




Cisco IOS Software, 1841 Software (C1841-BROADBAND-M), Version 12.4(4)T8, RELEASE SOFTWARE (fc3)

Technical Support: http://www.cisco.com/techsupport

Copyright (c) 1986-2007 by Cisco Systems, Inc.

Compiled Fri 10-Aug-07 14:54 by khuie

Image text-base: 0x6008B840, data-base: 0x615888E0



I'm stuck, Please advice.

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Overall Rating: 4 (1 ratings)
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paolo bevilacqua Sun, 02/22/2009 - 02:29
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In rommon, try 'sync' and copy the image again using tftpdnld. If still fail,it's HW fault and you need to return the unit via RMA.

kchatila75 Sun, 02/22/2009 - 02:43
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I tried sync, and i used different CF with a new image, but same symptoms. Does it mean HW issue :(

paolo bevilacqua Sun, 02/22/2009 - 03:02
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Do you still have the nv errors at boot? Can you use tftpdnd to copy the image ?

kchatila75 Sun, 02/22/2009 - 03:47
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My issue is that I'm not getting any single error/warning during bootup. It reach a level just before prompt & hang there. Previously, I have attached the level I'm reaching with bootup.


I tired tftpdnd before but I was getting illegal MAC Address. That's why I tried different CF to avoid image corruption.

paolo bevilacqua Sun, 02/22/2009 - 04:18
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In the first message you posted, there are nv errors during boot. I was asking if you still had these.


The illegal MAC points to something very wrong. Possibly, you should be able to get more information from rommon.


All in all, unless you want to spend more time troubleshooting this, I would have the unit replaced.


Leo Laohoo Sun, 02/22/2009 - 13:47
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Weird. It seems, in my guess, someone tried unsuccessfully to upgrade the bootstrap.


System Bootstrap, Version 12.4(13r)T8, RELEASE SOFTWARE (fc1) < --- Bootstrap ver 12.4(13r)T8

Technical Support: http://www.cisco.com/techsupport

Copyright (c) 2008 by cisco Systems, Inc.


Both copies of nv_flash are corrupted


Warning: monitor nvram area is corrupt ... using default values

Warning: Because of corrupted monitor nvram, falling to Readonly ROMMON


System Bootstrap, Version 12.4(13r)T9, RELEASE SOFTWARE (fc1) < --- Bootstrap ver 12.4(13r)T9


Where did you get the router? Bootstrap version 12.4(13r)T8 and T9 are not available. The "latest" is 12.4(13r)T5 (release date 06/Oct/2008).


I recommend you try to "downgrade" the bootstrap and see if this works.


Routers > Cisco 1841 Integrated Services Router > IOS ROMMON Software >


Hope this solves your problem.

paolo bevilacqua Sun, 02/22/2009 - 14:02
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Hmmm... it could be that it shipped like that from factory although rommon is not released yet on CCO.

Perhaps they introduced a newer HW revision.

Leo Laohoo Sun, 02/22/2009 - 14:34
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Hi Paolo,

Hope I'm wrong. 6 months ago we took delivery of two ASR 1002 and both came with IOS that were NOT to be released to the general public. And I've about bootlegged audio files shipped out on official Cisco CD's.


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