[svlug] help with cisco-1720 router

[Russ Emerson]

On Sat, Oct 05, 2002 at 07:45:04PM -0700, Alex A. opined:
> Hi, everyone !
> I was playing with cisco-1720 router, changed some firewall rules, overwrote flash and it was working fine. But when I rebooted it for the first time I got an error:
> 
> " loadprog: bad file magic number:	0x0
>   boot:  cannot load "flash"			"
> 
> after pressing "enter" I get  "rommon1>" prompt. I guess I have to restore flash memory.
> I don't know even how to start and where to find the information.
> Please, help !!! 
>  TIA

Sounds like a corrupt IOS image file.  See: 
http://www.cisco.com/warp/public/108/hwts_1700_17959.shtml#no_boot

Another web page - 
http://www.cisco.com/warp/public/130/sw_upgrade_proc_ram.shtml
has the procedures for loading new software.  

This is kind of up my alley, career-wise, so let me know (on- or off-list)
if you need additional assistance.

Russ
-- 
Russ Emerson
http://www.emersons.net/russ/