Description of problem: if the system is not cleaned before running the setup again, the "update" mode will be executed. During this flow, backupDb function is called with wrong parameters and fails. Setup should be executed without errors.
Merged into master; http://gerrit.ovirt.org/gitweb?p=ovirt-engine.git;a=commit;h=5bbcbd8e46c8f334ccf3386817fc8fd9a0cd3ed1
as RC is built, moving to ON_QA (hopefully did not catch incorrect bugs when doing this)
closing as this should be in 3.3 (doing so in bulk, so may be incorrect)