System Bootstrap Upgrade procedure
First download from Cisco.com a correct ROM MONITOR from (IOS ROMMON Software) section.
NOTA: Non è necessario entrare nel ROMMON. Si fa da IOS.
Then access to the router and execute upgrade rom-monitor command.
The system will reboot after upgrading the ROM.
Router# upgrade rom-monitor file flash:C1900_2900_RM2.srec.SPA.150-1r.M16
oppure upgrade rom-monitor file tftp://188.8.131.52/C1900_2900_RM2.srec.SPA.150-1r.M16
This command will reload the router. Continue? [yes/no]:y
Erasing boot flash eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
Programming boot flash pppp
System Bootstrap, Version 12.2(4r)XT4, RELEASE SOFTWARE (fc1)
Copyright (c) 2001 by cisco Systems, Inc.
Running new upgrade for first time