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BOOTING problem with CISCO 3640 Router

Discussion in 'General Cisco Certifications' started by mrbari, Jul 30, 2008.

  1. mrbari

    mrbari Bit Poster

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    Hi,
    I have got a booting problem with CISCO 3640 Router. No problem with IOS, a healthy IOS is there on to the router. But every time I have to break the boot sequence and try with this following command

    rommon 1 > dir flash:
    File size Checksum File name
    10629452 bytes (0xa2314c) 0x7b15 c3640-is-mz.121-5.T9.bin
    rommon 2 > boot


    ************* It boots properly***************


    But whenever I reload my router and if I don’t use the ''CTRL + BREAK'' to break the boot sequence, it keeps giving me the following error message.....it’s like a loop..... Keeps coming in....

    System Bootstrap, Version 11.1(20) AA2, EARLY DEPLOYMENT RELEASE SOFTWARE (fc1)
    oC3600 processor with 65536 Kbytes of main memory
    Main memory is configured to 64 bit mode with parity disabled

    open: file "n" not found
    open(): Open Error = -1
    loadprog: error - on file open
    boot: cannot load "flash:n":

    System Bootstrap, Version 11.1(20)AA2, EARLY DEPLOYMENT RELEASE SOFTWARE (fc1)
    oC3600 processor with 65536 Kbytes of main memory
    Main memory is configured to 64 bit mode with parity disabled

    open: file "n" not found
    open(): Open Error = -1
    loadprog: error - on file open
    boot: cannot load "flash:n":


    --------------------------------------...
    I think it’s trying to find a path to flash from where it should boot. But unfortunately it doesn’t have the proper path to find the flash.

    What you think? Am I right?
    Could you please help me to resolve this weird problem?
    Please suggest me whatever you think, I will try that. Please help me out.

    Thanks
     
  2. kevicho

    kevicho Gigabyte Poster

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    When it does boot (im assuming you mean it gets into the IOS so you can enter commands), do a show version, what is the config-register set to?
     
    Certifications: A+, Net+, MCSA Server 2003, 2008, Windows XP & 7 , ITIL V3 Foundation
    WIP: CCNA Renewal
  3. mrbari

    mrbari Bit Poster

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    Configuration register is 0x2142
     
  4. kevicho

    kevicho Gigabyte Poster

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    Certifications: A+, Net+, MCSA Server 2003, 2008, Windows XP & 7 , ITIL V3 Foundation
    WIP: CCNA Renewal
  5. mrbari

    mrbari Bit Poster

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    Thanks. But I have tried with that registry. No JOY. Have you got anyother clue??
     
  6. kevicho

    kevicho Gigabyte Poster

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    Certifications: A+, Net+, MCSA Server 2003, 2008, Windows XP & 7 , ITIL V3 Foundation
    WIP: CCNA Renewal
  7. kevicho

    kevicho Gigabyte Poster

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  8. mrbari

    mrbari Bit Poster

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    Hi kevicho,
    I have tried all of those. But those are basically for installing or upgrading IOS. But the mejor problem what I think is the source of my flash.

    Thank you very much for your effort and again if you can come accross any clue please keep posting that,
     
  9. Labrat636

    Labrat636 New Member

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    set
    BOOT=flash:c3640-is-mz.121-5.T9.bin

    This will set the boot variable to boot the image on your flash. Just type "set" at the rommon> and all environmental variables will be displayed. It probably has this entry now: BOOT=n or BOOT=flash:n
     
  10. Labrat636

    Labrat636 New Member

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    If you upgrade your IOS - you will need to change the BOOT= variable again to reflect the new IOS.
     
  11. kevicho

    kevicho Gigabyte Poster

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    Mr bari, did this work? I Would be interested to find out, sounds like it would work
     
    Certifications: A+, Net+, MCSA Server 2003, 2008, Windows XP & 7 , ITIL V3 Foundation
    WIP: CCNA Renewal
  12. mrbari

    mrbari Bit Poster

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    I would really like to appreciate your support. THANK YOU VERY MUCH to everybody whoever had tried to support me.

    You khow actually what was the problem. On the router, flash was pointing to MONRAC=BOOT= flash: name of the .bin file. So whenever I was trying to point to BOOT= flash: name of the .bin file, it was not working. As soon as I have changed it to MONRAC=BOOT, it works. Thanks a lot for your support.

    Thanks everybody, specially kevicho
     
  13. kevicho

    kevicho Gigabyte Poster

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    No need to thank me, i thoughtr this was a good learning experience, but is Monrac the name of your router?

    What commands did you use to change this (for reference), was this is rommon mode or the IOS ?

    or was it something along the lines of
    #en
    #conf t
    #boot = flash
     
    Certifications: A+, Net+, MCSA Server 2003, 2008, Windows XP & 7 , ITIL V3 Foundation
    WIP: CCNA Renewal
  14. mrbari

    mrbari Bit Poster

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    From the

    rommon 1> set
    .... You will see some information along with BOOT=flash name .bin [it should be the usual case]

    But from my site it was MONRAC=BOOT=flash:,n

    So what I had to do, change it to do

    rommon 1> MONRAC=BOOT= flash: name of the flash (.bin file)
    rommon 2> boot

    Once it boots properly. I put this command

    router(config)#no boot system flash
    router(config)#exit
    router#wr
    router# reload

    Thats how it works.

    Have a good day.
     
  15. kevicho

    kevicho Gigabyte Poster

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    Thankyou, that will come in handy in the future i a m sure :)
     
    Certifications: A+, Net+, MCSA Server 2003, 2008, Windows XP & 7 , ITIL V3 Foundation
    WIP: CCNA Renewal

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