nova-volume by default uses an LVM volume group (VG) named 'nova-volumes' in which it creates volumes via logical volumes. If that VG doesn't exist you'll get that error and volumes won't work. You can run 'vgs' to list your current volume groups.
Nate On Oct 16, 2012 3:01 PM, "Pavan Kulkarni" <pavan.babu...@gmail.com> wrote: > Thanks a lot Nathaneal. > > I am facing problems starting the nova-volume on RHEL. (log message- > volume group nova-volumes doesn't exist) > There seems to no proper documentation on resolving this for RHEL. > I saw this issue being addressed for Fedora in this > link<http://forums.openstack.org/viewtopic.php?f=16&t=611> > But am not sure if I can go ahead and use the same steps in RHEL. > Anyone has any idea how to resolve this issue ? Any help is appreciated. > Thanks > > On Tue, Oct 16, 2012 at 11:25 AM, Nathanael Burton < > nathanael.i.bur...@gmail.com> wrote: > >> Pavan, >> >> The message is not an error but a warning that a particular python call >> (Pool.add_listener) is deprecated and will be removed in a future version >> of the module. >> >> Thanks, >> >> Nate >> On Oct 16, 2012 11:20 AM, "Pavan Kulkarni" <pavan.babu...@gmail.com> >> wrote: >> >>> Hi, >>> >>> I am trying to install Openstack Essex following the instructions from >>> this >>> link<http://docs.openstack.org/essex/openstack-compute/install/yum/content/compute-db-sync.html> >>> . >>> But I get an error as follows which is faced by quite a number of users >>> based on the comments. >>> But none of them are resolved. >>> If anyone has any idea what may be the problem, please let me know. >>> Thanks >>> The error is as follows as soon as i run the *db-sync comand *during >>> nova installation. >>> * >>> * >>> *Error* >>> *2012-10-16 11:00:57 DEBUG nova.utils [-] backend <module >>> 'nova.db.sqlalchemy.migration' from >>> '/usr/lib/python2.6/site-packages/nova/db/sqlalchemy/migration.pyc'> from >>> (pid=15585) __get_backend /usr/lib/python2.6/site-packages/nova/utils.py:659 >>> * >>> *2012-10-16 11:00:57 WARNING nova.utils [-] >>> /usr/lib64/python2.6/site-packages/SQLAlchemy-0.7.8-py2.6-linux-x86_64.egg/sqlalchemy/pool.py:683: >>> SADeprecationWarning: The 'listeners' argument to Pool (and >>> create_engine()) is deprecated. Use event.listen().* >>> * Pool.__init__(self, creator, **kw)* >>> * >>> * >>> *2012-10-16 11:00:57 WARNING nova.utils [-] >>> /usr/lib64/python2.6/site-packages/SQLAlchemy-0.7.8-py2.6-linux-x86_64.egg/sqlalchemy/pool.py:159: >>> SADeprecationWarning: Pool.add_listener is deprecated. Use event.listen() >>> * >>> * self.add_listener(l)* >>> >>> >>> >>> >>> -- >>> >>> --With Regards >>> Pavan Kulkarni >>> >>> >>> _______________________________________________ >>> Mailing list: https://launchpad.net/~openstack >>> Post to : openstack@lists.launchpad.net >>> Unsubscribe : https://launchpad.net/~openstack >>> More help : https://help.launchpad.net/ListHelp >>> >>> > > > -- > > --With Regards > Pavan Kulkarni > >
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