I've reported the issue:
https://bugzilla.redhat.com/show_bug.cgi?id=1323462

A verified workaround is to change the metadata Version to 0.

Checksum should be compromised by it, so follow  http://lists.ovirt.org/pipermail/users/2012-April/007149.html if you have any issues with adjusting it.

Please let me know how this worked out for you.

Regards,
Vered

On Thu, Mar 31, 2016 at 5:28 AM, Alex R <ar.digger@gmail.com> wrote:
I am trying to import a domain that I have used as an export on a previous install.  The previous install was no older then v3.5 and was built with the all-in-one-plugin.  Before destroying that system I took a portable drive and made an export domain to export my VMs and templates.

The new system is up to date an was built as a hosted engine.  When I try to import the domain I get the following error:

"Error while executing action: Cannot add Storage. Storage format V3 is not supported on the selected host version."

I just need to recover the VMs.

I connect the USB hard drive to the host and make an export directory just like I did on the old host.

# ls -ld /mnt/export_ovirt
drwxr-xr-x. 5 vdsm kvm 4096 Mar  6 11:27 /mnt/export_ovirt

I have tried both doing an NFS mount
# cat /etc/exports.d/ovirt.exports
/home/engineha  127.0.0.1/32(rw,anonuid=36,anongid=36,all_squash)
/mnt/backup-vm/ 10.3.1.0/24(rw,anonuid=36,anongid=36,all_squash) 127.0.0.1/32(rw,anonuid=36,anongid=36,all_squash)

# cat /mnt/export_ovirt/images/4be3f6ac-7946-4e7b-9ca2-11731c8ba236/dom_md/metadata
CLASS=Backup
DESCRIPTION=eport_storage
IOOPTIMEOUTSEC=10
LEASERETRIES=3
LEASETIMESEC=60
LOCKPOLICY=
LOCKRENEWALINTERVALSEC=5
POOL_UUID=053926e4-e63d-450e-8aa7-6f1235b944c6
REMOTE_PATH=/mnt/export_ovirt/images
ROLE=Regular
SDUUID=4be3f6ac-7946-4e7b-9ca2-11731c8ba236
TYPE=LOCALFS
VERSION=3
_SHA_CKSUM=2e6e203168bd84f3dc97c953b520ea8f78119bf0

# ls -l /mnt/export_ovirt/images/4be3f6ac-7946-4e7b-9ca2-11731c8ba236/master/vms/4873de49-9090-40b1-a21d-665633109aa2/4873de49-9090-40b1-a21d-665633109aa2.ovf
-rw-r--r--. 1 vdsm kvm 9021 Mar  6 11:50 /mnt/export_ovirt/images/4be3f6ac-7946-4e7b-9ca2-11731c8ba236/master/vms/4873de49-9090-40b1-a21d-665633109aa2/4873de49-9090-40b1-a21d-665633109aa2.ovf

Thanks,
Alex

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