[virt-tools-list] [v2v-qe] Fwd: Re: [libvirt-users] I can't virt-clone into an existing LVM now (ERROR: clone onto existing storage volume is not supported:)
Morgan Cox
morgancoxuk at gmail.com
Thu Jul 12 10:01:28 UTC 2012
Hi
I should also point out that I can clone
virt-clone --original centos6template-DONTSTART -n centos6.new -f
/dev/vgpool/centos6.new
If non existing LVM volume exists....
I can confirm that it 100% using LVM volumes I just can't clone into
existing LVM volumes (I can on Ubuntu 10.04)
Is this a config issue?
any help would be welcomed.
Regards
On 12 July 2012 10:20, Morgan Cox <morgancoxuk at gmail.com> wrote:
> Hi
>
> I'm pretty sure there is nothing wrong with the LVM partitioning - I
> am using the same partitioning/methods on a older (ubuntu 10.04)
> server.
>
> Just a note it is a Ubuntu 12.04 server that has the issue...
>
> -------------------------------
> vgdisplay vgpool
> --- Volume group ---
> VG Name vgpool
> System ID
> Format lvm2
> Metadata Areas 1
> Metadata Sequence No 55
> VG Access read/write
> VG Status resizable
> MAX LV 0
> Cur LV 6
> Open LV 3
> Max PV 0
> Cur PV 1
> Act PV 1
> VG Size 874.77 GiB
> PE Size 4.00 MiB
> Total PE 223941
> Alloc PE / Size 35789 / 139.80 GiB
> Free PE / Size 188152 / 734.97 GiB
> VG UUID uPK29Y-cygJ-irzN-4rX1-9MLk-WDQ5-3UWlRo
>
> ------------------------------
>
> lvcreate -L 4000M -n lvol0 vgpool
> Logical volume "lvol0" created
>
> mkfs -t ext4 -m 1 -v /dev/vgpool/lvol0
>
> virt-clone -o centos6template-DONTSTART -n centos6.new -f /dev/vgpool/lvol0
> ERROR Clone onto existing storage volume is not supported:
> '/dev/vgpool/lvol0'
>
> Still getting the same thing
>
> Any ideas how to troubleshoot this further ?
>
> Regards
>
>
>
>
> On 12 July 2012 07:04, Lei Cui <lcui at redhat.com> wrote:
> > Hi Morgan,
> > I could not reproduce your issue on RHEL6.3, would you please check your
> existing LVM is working fine?
> > I doubt about your command:
> >> virt-clone --original NAME.test --name NAME -f /dev/vgpool/NAME
> > '/dev/vgpool/NAME' is it a logic volume?In this scenario, I think it
> should be the LVM device name following '-f'. As in man doc about
> virt-clone, here is the explanation of -f parameter
> > "
> > -f DISKFILE, --file=DISKFILE
> > Path to the file, disk partition, or logical volume to use as
> the backing store for the new guest's virtual disk.
> > "
> > Here are my steps for clone a guest to existing LVM, the new guest could
> be created successfully and start normally. Please refer to
> > 1. Create a LVM
> > 1) fdisk /dev/sdb
> > With a serious input in fdisk command to create a Linux LVM type
> partition(8e)
> > 2) pvcreate /dev/sdb1
> > 3) vgcreate -s 16M vg0 /dev/sdb1
> > 4) lvcreate -L 60000M -n lvol0 vg0
> > 5) mkfs -t ext3 -m 1 -v /dev/vg0/lvol0
> > 6) vgdisplay vg0 (check the lvm status)
> > 2. Clone a guest to existing LVM
> > 1) virt-clone -o vm1 -n vm1-new -f /dev/vg0/lvol0
> >
> > after a while, pop up 'Clone vm1-new created successfully.
> >
> > thanks
> > Lei
> >
> >
> > ----- 原始邮件 -----
> > 发件人: "yupzhang" <yupzhang at redhat.com>
> > 收件人: v2v-qe-list at redhat.com
> > 发送时间: 星期四, 2012年 7 月 12日 上午 10:23:23
> > 主题: [v2v-qe] Fwd: Re: [virt-tools-list] [libvirt-users] I can't
> virt-clone into an existing LVM now (ERROR: clone onto existing storage
> volume is not supported:) - i could in previous lbvirt versions?
> (deployment scripts no longer work...)
> >
> > Hi Lei,
> >
> > Please have a look this problem of virt-clone.
> >
> > Thanks
> > Yuping
> > -------- Original Message --------
> > Subject: Re: [virt-tools-list] [libvirt-users] I can't virt-clone
> into an existing LVM now (ERROR: clone onto existing storage volume is not
> supported:) - i could in previous lbvirt versions? (deployment scripts no
> longer work...)
> > Date: Wed, 11 Jul 2012 08:38:31 -0600
> > From: Eric Blake <eblake at redhat.com>
> > Organization: Red Hat
> > To: Morgan Cox <morgancoxuk at gmail.com>
> > CC: libvirt-users at redhat.com , virt-tools-list <
> virt-tools-list at redhat.com>
> >
> > [adding virt-tools-list]
> >
> > On 07/11/2012 04:36 AM, Morgan Cox wrote:
> >> Hi
> >>
> >> To deploy KVM vms I use a KVM template + script - which is cloned, then
> >> cloned again and resized - using virt-resize.
> >>
> >> i.e
> >>
> >> ----------------------------------------------------
> >>
> >> virt-clone --original debian6template-DONTSTART --name NAME.test -f
> >> /dev/vgpool/NAME.test
> >>
> >> virsh vol-create-as vgpool NAME 8G
> >>
> >> virt-clone --original NAME.test --name NAME -f /dev/vgpool/NAME
> >>
> >> virt-resize --expand /dev/sda1 /dev/vgpool/NAME.test /dev/vgpool/NAME
> >>
> >> ----------------------------------------------------
> >>
> >> The reason I clone twice is because I know that virt-clone does things
> to
> >> prep it for a new install, also the whole point was to be able to
> specify a
> >> size to be clone into (hence the use of virt-resize)
> >>
> >> This worked fine on our Ubuntu 11.10 server, however in Ubuntu 12.04
> when I
> >> try to do the same I get the error
> >>
> >> 'ERROR Clone onto existing storage volume is not supported:
> >> '/dev/vgpool/test'
> >
> > virt-clone is a separate package from libvirt, I'm hoping that someone
> > on the virt-tools-list has more insight into whether this was an
> > accidental regression.
> >
> >>
> >> If I can't virt-clone into an existing LVM I know I can clone once -
> then
> >> resize with LVM, then virt-resize into the partition (then
> virt-sysprep) -
> >> however the issue with that is that it is far more fiddly to mange...
> >>
> >> Previously could just make a 20GB partition and use virt-resize to
> expand
> >> into - using the above method I would have to increase the LVM to the
> value
> >> I want minus the size of the template..
> >> i.e I have to specify - the amount to increase by, rather than the
> final
> >> size I want.... The templates also change size (when I update them, etc)
> >> which would mean re-writting the script after every update.
> >>
> >> Is there a way I can re-enable being able to virt-clone to an existing
> LVM
> >> partition ? As mentioned it works 100% fine in Ubuntu 10.04
> >>
> >
> >
> > --
> > Eric Blake eblake at redhat.com +1-919-301-3266
> > Libvirt virtualization library http://libvirt.org
>
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