Re: LVM partitions on ax external USB HD

From: Rick Wagner (wagnerric_at_condor.cxo.cpqcorp.net)
Date: 04/12/05

  • Next message: Bob R. Taylor: "IDE disk problem" 
    To: fedora-list@redhat.com
Date: Mon, 11 Apr 2005 16:53:18 -0600

    On Sunday 10 April 2005 2:34 am, Antonio Montagnani wrote:
    > I tried to install Fedora on an external USB HD.
    > Of course booting from it didn't work.
    > On the disk there are an ext3 partition /boot and a LVM partition
    > If I connect the HD to a PC as USB device it is correctly mounted but I
    > see only the ext3 partition.
    > How can I see also the LVM???
    >

    Since no one else has answered, I'll take a stab. I have used LVM on several
    permanent hard drives, but never on removables. However I think what your
    looking to do is a udev script. Check out the information on udev. Also
    look for hotplug.

    What you'll want your script to do is upon detecting the plugging of your USB
    drive, it will want to scan (vgscan/lvscan) the drive for LVM volumes, then
    activate the volume (vgchange/lvchange --available=yes).

    I'm not sure what you want to do for unplugging. I expect that you'll need a
    script to flush then deactivate the volumes prior to pulling the plug on the
    drive.

    As I said, I don't know much about hotplug and udev, but this may give you
    some additional search hints.

            --rick

    > Tnx
    >
    > --
    > Antonio
    > ===========================================================================
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    > http://www.montagnani.org
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