From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx3.redhat.com (mx3.redhat.com [172.16.48.32]) by int-mx1.corp.redhat.com (8.13.1/8.13.1) with ESMTP id m27G7D4B007403 for ; Fri, 7 Mar 2008 11:07:13 -0500 Received: from qb-out-0506.google.com (qb-out-0506.google.com [72.14.204.237]) by mx3.redhat.com (8.13.8/8.13.8) with ESMTP id m27G6bEP026650 for ; Fri, 7 Mar 2008 11:06:37 -0500 Received: by qb-out-0506.google.com with SMTP id o12so384716qba.17 for ; Fri, 07 Mar 2008 08:06:37 -0800 (PST) Message-ID: Date: Fri, 7 Mar 2008 11:06:35 -0500 From: "Lionel Kernux" Subject: Re: [linux-lvm] How to "clone" a logical volume In-Reply-To: <47D162C8.4040104@wpkg.org> MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <47D162C8.4040104@wpkg.org> Reply-To: LVM general discussion and development List-Id: LVM general discussion and development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , List-Id: Content-Type: text/plain; charset="us-ascii" To: LVM general discussion and development Hi, Thanks for the reply. I'm talking about LVM uuid...I assumed that it is stored somwhere on the actual LV...is this not the case? If not, my problem is solved! So...Just to be sure: If I dd my source LV to my destination LV (which has alraedy been created through lvcreate) then LVM wont care and will activate it and all will be well? Thanks LK On Fri, Mar 7, 2008 at 10:44 AM, Tomasz Chmielewski wrote: > Lionel Kernux schrieb: > > > Hi, > > > > Here's what I'm trying to do: > > > > I have an LV that is being used as a physical disk for a XEN virtual machine. > > I want to "clone" the VM. > > lvcreate -L 75G -n virtualmachine_clone_lv VG00 > > dd if=/path/to/virtualmachine_lv of=/path/to/virtualmachine_clone_lvT > > > > This method would be perfect if it wasn't for the fact that now I have > > 2 LV's with the same uuid....not good... > > What UUID are you talking about here? Filesystem UUID, or LVM UUID? > > If about LVM UUID, it will not be the same if you dd a LV - UUID is > stored somewhere else. > > Filesystem UUID (if any) will remain the same, of course, as it's the > exact copy. > > > > -- > Tomasz Chmielewski > http://wpkg.org > > _______________________________________________ > linux-lvm mailing list > linux-lvm@redhat.com > https://www.redhat.com/mailman/listinfo/linux-lvm > read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/ >