TFTP problem - memory ?

Your flash memory is bad, and you need to replace it. If you have a Cisco support contract, open a TAC case and they will replace the router. If you don't have one, you will need to order the correct flash memory for the device you have. If you can afford to have this router down for several days, you can take your chances on ordering the cheapest memory you can find, otherwise order only Kingston, PNY, or some other name brand memory that is packaged specifically for your router type. My luck with the off brands working the first time is about 50/50.

As an FYI you should not rename IOS images, as this is not best practice. What version, and what platform is "ios_backup" for?

Thanks for your help !

Its running in cut down ios at the moment. As a last ditch, is there a way of formatting the flash ?

Cheers

format flash:

Thanks for the help, but :-

access-server(boot)>format flash: ^ % Invalid input detected at '^' marker.

access-server(boot)>en Password: access-server(boot)#format flash: ^ % Invalid input detected at '^' marker.

access-server(boot)#

The 'format flash' command is used for equipments with PCMCIA flash. For the inernal flash, use: erase flash:

Mohammed

Strange, I think I remember formatting the flash on 2500, 4000 (router).

An 837 that I have here seems to be offering the command.

hr#format flash: ?

Maybe of course erase flash and format flash are exactly equivalent, I don't know.

Note that it is not a "config mode" command.