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Problems with IOS upgrade on 801 router


I have a strange issue on a 801 ISDN router, I wanted to upgrade my IOS and deleted the file from flash, afterwards I did a squeeze . When I did a dir flash: it showed only the tinyrom file. When I did a show flash: I still saw my deleted file .This is the first strange issue .

I rebooted the router and could still boot from the deleted file ...

I booted in rommon mode and deleted the file over there and I followed the procedure for upgrading an IOS on a 800 router. It start to download the IOS image but after a couple of seconds it stops with a buffer overflow. I tried with shorter name but this didn't help.

Can somebody give me a hint what the problem is ?

When I start downloading I see a file name which can't be removed . (c800-sy6-mw) . What is this ?

boot# set

set baud =9600

set data-bits =8

set parity =none

set stop-bits =1

set console-flags =0

set mac-address =00B0.64BA.116A

set unit-ip =

set serv-ip =

set netmask =

set gate-ip =

set pkt-timeout =8

set tftp-timeout =16

set boot-action =none

set file-name ="c800-sy6-mw"

set watchdog =off

set prompt ="boot"

set ios-conf =0

boot# upload tftp

pload: failed, "command not found"

boot# upload tftp

TFTP initiated.

Build [ccai 21] -- Mon Nov 6 16:55:58 PST 2006

File name: c800-sy6-mw

RAM size: 0x00c48b55 (12880725)

Raw size: 0x00b8c831 (12109873)

Image size: 0x005d0d0c (6098188)


Error 7 at offset 899304.

upload: failed (3 seconds), "buffer overflow"



Re: Problems with IOS upgrade on 801 router

Hi ,

*** If the memory of router is not sufficient to load the ios you will get the above message.

Error 7 leans to running out of memory ...

Here is the link for IOS upgrade in Cisco801

Cisco IOS Software Upgrade Procedure for Cisco 801, 802, 803, 804, and 805 Series Routers

If for any reason the unit is rommon here is the link for rommon recovery.

ROMmon Recovery for the Cisco 800 Series Router

Hope it helps you.Plz rate it.



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