From mboxrd@z Thu Jan  1 00:00:00 1970
Date: Mon, 30 Dec 2013 02:00:26 +0000
From: Alasdair G Kergon <agk@redhat.com>
Message-ID: <20131230020026.GB16777@agk-dp.fab.redhat.com>
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In-Reply-To: <52C0C51C.7060806@gmail.com>
Subject: Re: [linux-lvm] lvremove is not deleting the file system
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To: Guy Rouillier <guy.rouillier@gmail.com>
Cc: linux-lvm@redhat.com

On Sun, Dec 29, 2013 at 07:58:04PM -0500, Guy Rouillier wrote:
> /dev/dell-vg/oraclelinux-root appears to contain an existing filesystem  
> (btrfs).
> Error: Use the -f option to force overwrite.

Does your version of xen-create-image offer a way to supply that -f?

If you're running lvremove yourself before retrying, look into running
wipefs manually on the device first.

Alasdair