Loading IOS on an ASR 1001 Router

• Cabling
  • Connect to the serial console
  • Connect the MGMT interface to your LAN
• Configuration via Serial Console
  • Quit the config dialogue
  • Configure Interface GigabitEthernet 0 (that's the MGMT Interface, actually) to a static address in your LAN and un-shut it.
  • Check if it works: ping vrf Mgmt-intf 192.168.1.11
  • Copy the new IOS file via TFTP (SCP doesn't work) to bootflash: copy tftp: bootflash:
  • Unset the BOOT variable (in conf mode): no boot system
  • Set the BOOT variable to the new image (in conf mode): boot system flash bootflash:asr1001-universalk9.03.08.01.S.153-1.S1.bin
  • write memory
  • Check the BOOT variable with the show bootvar command, it must now look like this:
    • BOOT variable = bootflash:asr1001-universalk9.03.08.01.S.153-1.S1.bin,1;
  • reload the router and check it boots the right image.