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Can't get out of rommon mode

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  • Can't get out of rommon mode

    Someone accidentally did an erase flash on one of our cisco 1711 routers. I've been trying to get back into to boot mode but when trying to do a rommon>confreg 0x2101 reset, I get the following error:

    device does not contain a valid magic number
    boot: cannot open "flash:"
    boot: cannot determine first file name on device "flash:"

    Is there any way to fix this apart from replacing the system flash on the board? I could try to do a TFPT download through rommon but I'd need to know what address was assigned to this router. Any ideas?

  • #2
    Re: Can't get out of rommon mode

    You can configure an ipaddress in rommon mode.
    Here is an example of it:
    http://www.cisco.com/warp/public/471/76.html
    Marcel
    Technical Consultant
    Netherlands
    http://www.phetios.com
    http://blog.nessus.nl

    MCITP(EA, SA), MCSA/E 2003:Security, CCNA, SNAF, DCUCI, CCSA/E/E+ (R60), VCP4/5, NCDA, NCIE - SAN, NCIE - BR, EMCPE
    "No matter how secure, there is always the human factor."

    "Enjoy life today, tomorrow may never come."
    "If you're going through hell, keep going. ~Winston Churchill"

    Comment


    • #3
      Re: Can't get out of rommon mode

      Thanks for the quick reply. I'm not too sure if this is what you were referring to, but I believe that the rommon>IP_ADDRESS=xx.xx.xx.xx is just to let the router know what the current IP already is. It doesn't actually assign an address though.

      Comment


      • #4
        Re: Can't get out of rommon mode

        I'm very sure it will assign. Have you already tried it? No? I already thought so.
        Otherwise, enjoy sending the image via the consolecable. I hope you have some spare time left about a day of 2.

        So, set the ipadress, copy the image and when done reboot the router.
        Marcel
        Technical Consultant
        Netherlands
        http://www.phetios.com
        http://blog.nessus.nl

        MCITP(EA, SA), MCSA/E 2003:Security, CCNA, SNAF, DCUCI, CCSA/E/E+ (R60), VCP4/5, NCDA, NCIE - SAN, NCIE - BR, EMCPE
        "No matter how secure, there is always the human factor."

        "Enjoy life today, tomorrow may never come."
        "If you're going through hell, keep going. ~Winston Churchill"

        Comment

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