Rommon Problem

Unanswered Question
Jul 23rd, 2007

I have 3 cisco 3640 all have sending me rommon prompt so i tried to resolve using xmodem.

i followed the following steps:

1-Into the confreg i set the baud rate to 115200 than connect it to using HT at 115200 B/r

check the flash using dir flash:

giving the command

xmodem -c c3640-jk9o3s-mz.124-5a .bin

after the completion it give me the following error.

uncompressed image checksum is incorrect 0x46b7fabc expected a checksum of 0xa8c3facd

I have this problem too.
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khanahmer Tue, 07/24/2007 - 01:28

hi,

I tried usinf Solarwind tftp server but when i run tftpdnld the error message is command not found.

thanks

ccnp_ccie Tue, 07/24/2007 - 01:36

hi,

may be that command is not supporting on router. as suggested above try to upload small ios(IP) image.

khanahmer Tue, 07/24/2007 - 04:07

Error-1

---------------------

rommon 1 > xmodem -yc c3640-i-mz.124-5a.bin

Do not start the sending program yet...

File size Checksum File name

3686948 bytes (0x384224) 0x107e c3640-i-mz.120-2a.t1.bin

WARNING: All existing data in flash will be lost!

Invoke this application only for disaster recovery.

Do you wish to continue? y/n [n]: y

Ready to receive file c3640-i-mz.124-5a.bin ...

Erasing flash at 0x31fc0000

program flash location 0x309a0000

Download Complete!

program load complete, entry point: 0x80008000, size: 0x9a84e8

Self decompressing the image :

Error : Uncompression of the image fail

invalid compressed data--format violated

Error : zip decompress failed

*** System received a Software forced crash ***

signal= 0x17, code= 0x7, context= 0x8000eb20

PC = 0x800080d4, Cause = 0x20, Status Reg = 0x3041f003

Error -2

------------

rommon 3 > xmodem -c c3640-jk9o3s-mz.124-5a.bin

Do not start the sending program yet...

File size Checksum File name

ROM Monitor EMT police: EMT call "EMT_TICKS" requested but not supported

28855036 bytes (0x1b84afc) 0x4a63 c3640-jk9o3s-mz.124-5a.bin (bad checksum

: 0xca98)

WARNING: All existing data in fl

Invoke this application only for disaster recovery.

Do you wish to continue? y/n [n]: y

Ready to receive file c3640-jk9o3s-mz.124-5a.bin ...

Erasing flash at 0x31fc0000

program flash location 0x31100000

amd_flash_cmd: timeout on AMD flash command

program_flash: location 0x31100000 wrote 0x6977cdde,contains 0x697726de

program flash failure at location 0x31100000 - aborting

rommon 4 >

Amit Singh Tue, 07/24/2007 - 04:57

It seems to be a faulty hardware to me.

Please try taking the DRAM and flash out and reset them again on the slots. Power on the router and then try sending the file again. Please see the link below for placing the DRAM and Flash:

http://www.cisco.com/en/US/products/hw/routers/ps274/products_installation_guide_chapter09186a008007de1b.html#1034416

If still it doesnot work, Please get the replacement for the BOX.

-amit singh

khanahmer Tue, 07/24/2007 - 05:19

dir flash:

Device does not contain a valid magic number

boot: cannot open "flash:"

boot: cannot determine first filename on device "flash:"

Thanks

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