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Community Member

Xmodem failure on Cisco 831

Hello all,

I'm having a problem with Xmodem failures on a cisco 831 from romon mode.

The message from secureCRT is "Xmoden operation was canceled by remote peer".

Also from the router I'm seeing the message "Timeout waiting for data - aborting download"...

Below is the output from when I start the router to intering the xmodem command through failure message.

NOTE: You will also see "boot: cannot determine first file name on device "flash:"

which is why I am haveing to put in image on the router in the first place.

I am not able to get more than 32kbytes of data tranfered before a timeout.

I'm kind of lost at this point, not sure which direction to take.

System Bootstrap, Version 12.2(8r)YN, RELEASE SOFTWARE (fc1)

TAC Support: http://www.cisco.com/tac

Copyright (c) 2002 by cisco Systems, Inc.

C800/SOHO series (Board ID: 29-129) platform with 32768 Kbytes of main memory

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

System Bootstrap, Version 12.2(8r)YN, RELEASE SOFTWARE (fc1)

TAC Support: http://www.cisco.com/tac

Copyright (c) 2002 by cisco Systems, Inc.

C800/SOHO series (Board ID: 29-129) platform with 32768 Kbytes of main memory

rommon 1 > xmodem -r c831-k9o3y6-mz.123-7.T

Do not start the sending program yet...

Invoke this application only for disaster recovery.

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

Ready to receive file

Download Complete!

Timeout waiting for data - aborting download...

rommon 2 >

Please advise,

James

4 REPLIES
VIP Purple

Re: Xmodem failure on Cisco 831

Hello James,

have you tried to change the baud rate of your console port yet ?

rommon 2> confreg

will get you into a menu where eventually you can increase the baud rate.

Just a thought...

Regards,

Georg

Community Member

Re: Xmodem failure on Cisco 831

Hello Georg,

Thanks for responding.

I have not made any baud rate changed from the router. I have only changed the rate in secureCRT.

Once I'm in confreg, is there a particular buad rate that works more often than not?

Thanks again,

James

VIP Purple

Re: Xmodem failure on Cisco 831

Hello James,

hard to tell which one will work for you, I would try 115000 first, and then 38000. Just make sure that SecureCRT has the same speed settings.

Regards,

Georg

Community Member

Re: Xmodem failure on Cisco 831

Georg,

I believe the reason I am getting the xmodem failures is because I don’t have enough dram remaining for the ios image size.

Is there a way to delete files while in Rommon mode?

I am asking this question because rommon is the only command option I have at this point.

Below are the files from the command dir flash: and the xmodem command shows the image I'm trying to push down to the router. The image is 5.80MB

rommon 3 > dir flash:

File size Checksum File name

4895 bytes (0x131f) 0x71f7 webflash (deleted)

986 bytes (0x3da) 0x5eab webflash (deleted)

941455 bytes (0xe5d8f) 0xc85c webflash (deleted)

278042 bytes (0x43e1a) 0x8546 webflash (deleted)

62561 bytes (0xf461) 0x55fb webflash (deleted)

474217 bytes (0x73c69) 0x1533 webflash (deleted)

47026 bytes (0xb7b2) 0x1b3f webflash (deleted)

210 bytes (0xd2) 0x0c31 webflash (deleted)

8082 bytes (0x1f92) 0x97c6 webflash (deleted)

3463 bytes (0xd87) 0x0d3d webflash

rommon 4 > xmodem -r c831-k9o3y6-mz.123-7.T

James

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