I have a 2811 router with an IOS version of c2800nm-advipservicesk9-mz.124-15.T7.bin under my desk. It is not on the network. It have 256MB RAM and 64MB Flash with 10MB of free space.
I need to upgrade the IOS on the router to c2800nm-advipservicesk9-mz.124-24.T1 as prep work before I roll this out to all our offices.
I console onto the router and deleted the IOS in flash. Then changed the registery to 0x0 to go to ROMMON mode and copied the IOS via xmodem to the router. This took 24hrs and when the copy was completed it reloaded how the IOS has compiled and the router is back with its original config.
When I do a sh flash on the router, the IOS is not there.
I don't want to reload the router as it will be very noisy under my desk and will annoy everyone if it cannot find the IOS on bootup.
What would you do?
If you really must use XMODEM, you can speed up the console port from 9600bps to somewhere around 115200 or higher, but I've found if you go much above 115200, the XMODEM transfer takes quite a few errors.
I believe the command to do this is somthing similar to:
Once you enter the command, you will be disconnected from the console session. Just create a new console connection with higher speed set, and you should be good. It will take significantly less than 24h if you do it that way :P