Comment 5 for bug 1578639

Reviewed: https://review.openstack.org/316070
Committed: https://git.openstack.org/cgit/openstack/fuel-octane/commit/?id=b1ca1e699fdff41af6688aaebebdf84b7af78854
Submitter: Jenkins
Branch: stable/8.0

commit b1ca1e699fdff41af6688aaebebdf84b7af78854
Author: Oleg Gelbukh <email address hidden>
Date: Thu May 5 13:13:51 2016 +0000

    Stop update of volume metadata gracefully if 'os' volume is not on LVM

    To upgrade an OpenStack cluster node with preserved partitions and data
    from version 6.0 to version 8.0, changes in disk metadata required. These
    changes accommodate the metadata to change of provisioning method from
    'cobbler' to 'image'.

    To avoid failure if the metadata was already altered by the previous
    execution of upgrade-node command, the script update_node_partition_data.py
    should stop gracefully if no relevant partitions were found.

    Change-Id: I7a110423312d1cd4d5101e7ce048847092d8578f
    Closes-bug: 1578639
    (cherry picked from commit 685241e4b7ea8b0b9150b505d435c497722680f5)