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Good Evening All, I have the following setup: DELL Poweredge 2550 running Centos 4.4 server CLI I am trying to mount a 1TB external Hard disk via USB and a ...
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  1. #1
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    Exclamation Centos 4.4 CLI - Can't Detect or Mount USB Key and Disk


    Good Evening All,
    I have the following setup:

    DELL Poweredge 2550
    running
    Centos 4.4 server CLI

    I am trying to mount a 1TB external Hard disk via USB and a USB key to the system but I can't seem to detect or mount either. When plugged in they both light up and get power for about 20 seconds, then they power off. Can anyone offer some assistance?

  2. #2
    Super Moderator devils casper's Avatar
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    plug-in External disk and execute this
    Code:
    tail -s 3 -f /var/log/messages
    note down device name assigned to disk and mount it. check the output of fdisk -l command too.
    It is amazing what you can accomplish if you do not care who gets the credit.
    New Users: Read This First

  3. #3
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    Tried That....

    Tried that, couldn't see any entries relating to drives. Do I need to install any USB packages to get the ports recognised?

    PS - Both drives mount fine under Knoppix on my latop

  4. #4
    Super Moderator devils casper's Avatar
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    does fdisk -l show partitions of external disk?
    It is amazing what you can accomplish if you do not care who gets the credit.
    New Users: Read This First

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    This is the output of fdisk -l

    Disk /dev/sda: 209 MB, 209715200 bytes
    255 heads, 63 sectors/track, 25 cylinders
    Units = cylinders of 16065 * 512 = 8225280 bytes

    Device Boot Start End Blocks Id System
    /dev/sda1 * 1 13 104391 83 Linux
    /dev/sda2 14 25 96390 8e Linux LVM

    Disk /dev/sdb: 1610 MB, 1610612736 bytes
    255 heads, 63 sectors/track, 195 cylinders
    Units = cylinders of 16065 * 512 = 8225280 bytes

    Device Boot Start End Blocks Id System
    /dev/sdb1 * 1 195 1566306 8e Linux LVM

    Disk /dev/sdc: 103.7 GB, 103735296000 bytes
    255 heads, 63 sectors/track, 12611 cylinders
    Units = cylinders of 16065 * 512 = 8225280 bytes

    Device Boot Start End Blocks Id System
    /dev/sdc1 * 1 12611 101297826 8e Linux LVM

    NB - It is the same with the drives connected / disconnected...

  6. #6
    Super Moderator devils casper's Avatar
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    plug-in External disk before booting up and check if CentOS recognize it. in case it doesn't work, unload and reload uhci_hcd module.
    Code:
    rmmod uhci_hcd
    modprobe uhci_hcd
    plug-in External disk.
    It is amazing what you can accomplish if you do not care who gets the credit.
    New Users: Read This First

  7. #7
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    Fixed it!

    Thanks for the help Casper! I had to use OHCI not UHCI but it worked. That was the issue. Still getting my head around why it worked (trying to understand it all) but it worked. Thanks for the help!

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