[c-nsp] getting a 1721 to boot a new image

[Ed Ravin]

On Thu, Mar 01, 2007 at 02:15:19PM -0500, Jon Lewis wrote:
> On Thu, 1 Mar 2007, Ed Ravin wrote:
> 
> >On Tue, Feb 27, 2007 at 07:27:57PM -0500, Ed Ravin wrote:
> >>I must be doing something stupid.  I'm trying to upgrade a Cisco 1721
> >>at a remote site.  It has a nice big flash, so I downloaded the new IOS
> >>without deleting the old one.  [but config file was ignored and the
> >>first image in flash was always booted]
> >
> >My thanks to the kind soul who reminded me that the configuration register
> >should always be checked when you have booting problems.
> 
> WTH was it set to?  That was the first thing I thought of, but according 
> to cisco docs on config-register, I couldn't see a setting that would 
> ignore your boot statements without ignoring the entire config, which 
> would have made it more obviously a config-register issue.

It was set to 0x101.

I looked over a Cisco doc page on config-register - if I read it
correctly, the router shouldn't have been booting at all with that
value, it should have stopped at the hardware prompt.  Perhaps
the 1700 series interprets some of the bits differently?