02-25-2008 04:00 PM - edited 03-03-2019 08:52 PM
Hi
Does anyone knows why i'm getting this output from a 836 Cisco?
rommon 1 > boot c836-k9o3y6-mz.123-14.T7.bin
an alternate boot helper program is not specified
(monitor variable "BOOTLDR" is not set)
and unable to determine first file in bootflash
loadprog: error - on file open
boot: cannot load "c836-k9o3y6-mz.123-14.T7.bin"
rommon 2 >
It refused to load from flash.
I make the whole tftpdnld procedure with 3 different ios
Check this out also
(i'm givving) rommon 2 > boot flash:c836-k9o3y6-mz.123-14.T7.bin
(and getting) Checksum failed on c836-k9o3y6-mz.123-14.T7.bin
Expected checksum: f411, calculated checksum: a28b
open: file "c836-k9o3y6-mz.123-14.T7.bin" not found
open(): Open Error = -1
loadprog: error - on file open
boot: cannot load "flash:c836-k9o3y6-mz.123-14.T7.bin"
Notes: The image its loaded propriate in the flash with the correct file size on it
02-29-2008 02:58 PM
type this in your Cisco 836 ADSL :
rommon >boot flash: c836-k9o3y6-mz.123-14.T7.bin
rommon >reload
Then you're going to be in a normal mode,
in this point, please type:
#config t
(config)#no boot system
(config)#boot system flash: c836-k9o3y6-mz.123-14.T7.bin
(config)exit
#copy run start
#sh ver
Here just check at the end if the configuration register is Ox2102
if not just type:
#config t
(config)#config-register 0x2102
(config)#exit
#copy run start
At the end restart the Cisco 836 ADSL :
#reload
02-29-2008 04:29 PM
He can't enter any of the IOS commands you're suggesting, precisely because the router fails to boot IOS.
03-02-2008 08:43 AM
Thanks for your answer.
The problem was slightly different.
I tried 3 IOS and while the flash was 12MB probably was too mush for it.
Thats why the screens I posted
I tried the first one 7.5MB with xmodem and everything goes fine.
The initial problem was that someone probably delete the ios and the router fell on rommon mode
02-29-2008 09:05 PM
Hi,
With the addition with Paolo, I'd like to suggest you to tri with "boot slot0:". If till you are facing the same problem, try to upload the IOS via Xmodem.
Thanks
Goutam
Pls rate if it helps u!!!
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