When upgrading Oracle VM Manager Release 3.3.3 to Release 3.4.x, the upgrade procedure may fail due to the presence of temporary files.
Workaround: Delete any temporary files that cause the upgrade failure. For example, run the following command as the root user on the Oracle VM Manager host:
# rm -Rf /tmp/workdir_sel # rm -Rf /tmp/ovm*
Once these files are removed, restart the upgrade procedure again.
Bug 25394965