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Re: LVM partitions on ax external USB HD



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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