Backing Up and Restoring Cisco IOS Software and Configurations

=> Boot system commands
      -> Loads the Cisco IOS Syftware with image-flash image-name
           Router(config)#boot system flash image-name

      -> Loads the Cisco IOS Software with image-name from a TFTP Server
           Router(config)#boot system tftp image-name 192.168.1.10
      -> Loads the Cisco IOS Software from ROM
           Router(config)#boot system rom

=> The Cisco IOS File System
      Router#copy tftp running-config
      Router#copy tftp startup-config
      Router#show startup-config
      Router#erase startup-config
      Router#copy running-config startup-config
      Router#copy running-config tftp
      Router#show running-config

=> Viewing the IOS File System
      Router#show file system

=> Banking up configurations to TFTP Server
      Router#copy running-config tftp

=> Restoring configurations from a TFTP server
      Router#copy tftp running-config

=> Backing up the Cisco IOS software from a TFTP Server
      Router#copy flash0: tftp:

=> Restoring/Upgrading the Cisco IOS Software from FTP Server
      Router#copy tftp: flash: