If any errors occur during installation, check the Oracle VM Manager installation log file. Usually, this should be found in:

/var/log/ovmm/ovm-manager-3-install-date.log

However, if the installer is unable to create this directory and file for some reason, such as inadequate permissions, the install file is located in:

/tmp/ovm-manager-3-install-date.log

During installation, the installer self-extracts into the /tmp directory, if the installer does not exit properly, you may also find an installation log in this location:

/tmp/ovmm-installer.selfextract_id/ovm-manager-3-install-date.log