cisco 4506 boot Problem

Posted on 2012-09-11
Last Modified: 2012-09-25

I got a Problem with cisco 4506 switch booting..

it is going to ROMMON mode while restarting the device but in ROMMON mode , if i give the BOOT command , it is booting well and remaining things are fine.

Configuration register is 0x2102  now and  Boot system is configured from Flash..

I just worrried  that , if it gets down when man resources are not availble , then it would be a problem as it needs a manual intervention to assign boot command from ROMMON mode

pls help on this

Question by:RAMU CH
    LVL 5

    Accepted Solution

    You may have an improperly set bootvar from an upgrade?  You can check it with the following:

    Switch#dir bootflash:
    Directory of bootflash:/

        1  -rw-     6516904   Aug 13 2000 13:37:13  cat4000-is-mz.121-11b.EW

    61341696 bytes total (54824664 bytes free)

    Switch#show bootvar
    BOOT variable = bootflash:cat4000-is-mz.121-8a.Ew,1
    CONFIG_FILE variable does not exist
    BOOTLDR variable does not exist
    Configuration register is 0x2102

    They don't match so change it with the following replacing with your  code values:

    Switch#configure terminal
    Enter configuration commands, one per line.  End with CNTL/Z.
    Switch(config)#no boot system flash bootflash:cat4000-is-mz.121-8a.Ew
    Switch(config)#boot system flash bootflash:cat4000-is-mz.121-11b.EW
    Switch#write memory
    Building configuration...
    Compressed configuration from 4359 bytes to 1730 bytes[OK]

    Then verify it was written with the following:

    Switch#show bootvar
    BOOT variable = bootflash:cat4000-is-mz.121-11b.EW,1
    CONFIG_FILE variable does not exist
    BOOTLDR variable does not exist
    Configuration register is 0x2102

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    by:RAMU CH

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