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Cisco 3560E Switch won't boot after IOS upgrade...

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  • Cisco 3560E Switch won't boot after IOS upgrade...

    Hello, I had a new Cisco 3560 E switch that was running with the IOS fresh out of the box. All was working well, and I needed to do the IOS for some minor bug fixes. I did the upgrade, now the swtich will hang when you turn it on. it gets to here and just hangs:

    Using driver version 1 for media type 2
    Base ethernet MAC Address: 00:23:33:7e:6b:00
    Xmodem file system is available.
    The password-recovery mechanism is enabled.

    I can hold the mode button down when it boots and get here:

    The system has been interrupted prior to initializing the
    flash filesystem. The following commands will initialize
    the flash filesystem, and finish loading the operating
    system software:


    I can then type flash and get this:

    switch: flash
    Initializing Flash...
    mifs[2]: 12 files, 1 directories
    mifs[2]: Total bytes : 1835008
    mifs[2]: Bytes used : 757248
    mifs[2]: Bytes available : 1077760
    mifs[2]: mifs fsck took 0 seconds.
    mifs[3]: 0 files, 1 directories
    mifs[3]: Total bytes : 3932160
    mifs[3]: Bytes used : 1024
    mifs[3]: Bytes available : 3931136
    mifs[3]: mifs fsck took 0 seconds.
    mifs[4]: 5 files, 1 directories
    mifs[4]: Total bytes : 262144
    mifs[4]: Bytes used : 9216
    mifs[4]: Bytes available : 252928
    mifs[4]: mifs fsck took 0 seconds.
    mifs[5]: 5 files, 1 directories
    mifs[5]: Total bytes : 262144
    mifs[5]: Bytes used : 9216
    mifs[5]: Bytes available : 252928
    mifs[5]: mifs fsck took 0 seconds.
    -- MORE --
    mifs[6]: 846 files, 13 directories
    mifs[6]: Total bytes : 57409536
    mifs[6]: Bytes used : 19844608
    mifs[6]: Bytes available : 37564928
    mifs[6]: mifs fsck took 14 seconds.
    ...done Initializing Flash.

    And I can then type boot and it boots normally. This is fine, but I can't run around after a power outtage manually booting all the switches... Anyone have any idea what might be going on? I checked the reg and it shows 0XF. That's the same as the other swtiches sitting right next to it. I'm also scared to do any more upgrades in fear I might loose more switches...

    Thanks in advance for any help or idea you guys might have.


  • #2
    Re: Cisco 3560E Switch won't boot after IOS upgrade...

    Did you update the boot variable after the upgrade?

    show boot
    boot system flash:/IOS_filename
    copy run start

    If the switch still fails to boot, I would check the memory requirements for this particular release of IOS along with verifying CRC values.

    FWIW: I just completed upgrading all of our routers and switches. To my surprise, one of the 3750's that was part of a 3 member stack failed to boot the new IOS image, but booted the old IOS image without any problems. After working with TAC, they finally issued an RMA. The RMA switch booted the new IOS image and joined the stack without any problems. Go figure!!!