Jon Boone on 28 Sep 2013 09:20:26 -0700

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Re: [PLUG] Spanning volumes with LVM (Ubuntu)


  Did you create an MBR on the 3TB drives?  If you did, try repartitioning with GPT partitioning scheme instead.


On 2013-09-28, at 11:57, Eric H. Johnson <> wrote:

> Hi all,
> I broke down and bought a new computer to use as a Mythtv backend. It came
> with a 1TB drive and I added 2x3TB drives. I am now trying to span the 3
> drives with LVM by following the instructions here:
> I installed the OS (Ubuntu 13.04) to the 1TB drive.
> When I did the vgextend for the first 3TB drive it only extended by 2TB. I
> saw something along the way that there was a 2TB limit for MSDOS (FAT,etc.)
> drives, but should not be a problem for ext2/3/4. I suspect this command may
> be the problem when preparing the whole disk for LVM:
> dd if=/dev/zero of=/dev/sdb bs=512 count=1
> Where I might need a larger block size. Gparted reports the file system of
> the 3TB volume as "lvm2 pv".
> Any ideas what I need to do to see the entire 3TB, as well as the second 3TB
> drive which I have not even started on.
> Thanks,
> Eric
> ___________________________________________________________________________
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