Bug 1040704

The %pretrans statement in the openstack-neutron package generates a shell script called UPGRADE_FROM_QUANTUM that incorrectly parses the output of chkconfig to generate a list of services to enable.  This does not correctly take into account services that are turned off for all runlevels and generates a script that incorrectly calls the services themselves - some of which do not background and do not terminate.

cat /var/lib/rpm-state/UPGRADE_FROM_QUANTUM
chkconfig --levels 2345 neutron-openvswitch-agent on
neutron-server

In this case, neutron-server was set to off on all three run levels however the script itself calls neutron-server which does not background nor terminate and thus the rpm package installation does not return control to the console.

The culprit code is:

%pretrans
if rpm --quiet -q openstack-quantum; then
    mkdir -p  %{_localstatedir}/lib/rpm-state/

    # Create a script for restoring init script enabling that we can also
    # use as a flag to detect quantum -> grizzly upgrades in %posttrans
    chkconfig --type sysv --list|grep ^quantum| \
      sed -re 's/[0-6]:off//g
               s/([0-6]):on\s*/\1/g
               s/quantum/neutron/g
               s/^([a-z0-9-]+)\s+([0-6]+)/chkconfig --levels \2 \1 on/' > %{_localstatedir}/lib/rpm-state/UPGRADE_FROM_QUANTUM
fi


This should actually read:

%pretrans
if rpm --quiet -q openstack-quantum; then
    mkdir -p  %{_localstatedir}/lib/rpm-state/

    # Create a script for restoring init script enabling that we can also
    # use as a flag to detect quantum -> grizzly upgrades in %posttrans
    chkconfig --type sysv --list|grep ^quantum| \
      sed -re 's/[0-6]:off//g
               s/([0-6]):on\s*/\1/g
               s/quantum/neutron/g
               s/^([a-z0-9-]+)\s+$/chkconfig \1 off/
               s/^([a-z0-9-]+)\s+([0-6]+)/chkconfig --levels \2 \1 on/' > %{_localstatedir}/lib/rpm-state/UPGRADE_FROM_QUANTUM
fi


This will generate a script for the upgrade that reads:

chkconfig --levels 2345 neutron-openvswitch-agent on
chkconfig neutron-server off