diff --git a/files/debs/general b/files/debs/general
index 1dde03b7fe..8e0018d284 100644
--- a/files/debs/general
+++ b/files/debs/general
@@ -29,7 +29,6 @@ psmisc
 python2.7
 python-dev
 python-gdbm # needed for testr
-screen
 tar
 tcpdump
 unzip
diff --git a/files/rpms-suse/general b/files/rpms-suse/general
index 370f2409f7..0c1a2819b1 100644
--- a/files/rpms-suse/general
+++ b/files/rpms-suse/general
@@ -24,7 +24,6 @@ psmisc
 python-cmd2 # dist:opensuse-12.3
 python-devel  # pyOpenSSL
 python-xml
-screen
 systemd-devel # for systemd-python
 tar
 tcpdump
diff --git a/files/rpms/general b/files/rpms/general
index 2443cc8cd7..f3f870823c 100644
--- a/files/rpms/general
+++ b/files/rpms/general
@@ -28,7 +28,6 @@ psmisc
 pyOpenSSL # version in pip uses too much memory
 python-devel
 redhat-rpm-config # missing dep for gcc hardening flags, see rhbz#1217376
-screen
 systemd-devel # for systemd-python
 tar
 tcpdump
diff --git a/functions-common b/functions-common
index 660df795db..fdbb9c067e 100644
--- a/functions-common
+++ b/functions-common
@@ -1380,62 +1380,6 @@ function zypper_install {
         zypper --non-interactive install --auto-agree-with-licenses "$@"
 }
 
-
-# Process Functions
-# =================
-
-# _run_process() is designed to be backgrounded by run_process() to simulate a
-# fork.  It includes the dirty work of closing extra filehandles and preparing log
-# files to produce the same logs as screen_it().  The log filename is derived
-# from the service name.
-# Uses globals ``CURRENT_LOG_TIME``, ``LOGDIR``, ``SCREEN_LOGDIR``, ``SCREEN_NAME``, ``SERVICE_DIR``
-# If an optional group is provided sg will be used to set the group of
-# the command.
-# _run_process service "command-line" [group]
-function _run_process {
-    # disable tracing through the exec redirects, it's just confusing in the logs.
-    xtrace=$(set +o | grep xtrace)
-    set +o xtrace
-
-    local service=$1
-    local command="$2"
-    local group=$3
-
-    # Undo logging redirections and close the extra descriptors
-    exec 1>&3
-    exec 2>&3
-    exec 3>&-
-    exec 6>&-
-
-    local logfile="${service}.log.${CURRENT_LOG_TIME}"
-    local real_logfile="${LOGDIR}/${logfile}"
-    if [[ -n ${LOGDIR} ]]; then
-        exec 1>&"$real_logfile" 2>&1
-        bash -c "cd '$LOGDIR' && ln -sf '$logfile' ${service}.log"
-        if [[ -n ${SCREEN_LOGDIR} ]]; then
-            # Drop the backward-compat symlink
-            ln -sf "$real_logfile" ${SCREEN_LOGDIR}/screen-${service}.log
-        fi
-
-        # TODO(dtroyer): Hack to get stdout from the Python interpreter for the logs.
-        export PYTHONUNBUFFERED=1
-    fi
-
-    # reenable xtrace before we do *real* work
-    $xtrace
-
-    # Run under ``setsid`` to force the process to become a session and group leader.
-    # The pid saved can be used with pkill -g to get the entire process group.
-    if [[ -n "$group" ]]; then
-        setsid sg $group "$command" & echo $! >$SERVICE_DIR/$SCREEN_NAME/$service.pid
-    else
-        setsid $command & echo $! >$SERVICE_DIR/$SCREEN_NAME/$service.pid
-    fi
-
-    # Just silently exit this process
-    exit 0
-}
-
 function write_user_unit_file {
     local service=$1
     local command="$2"
@@ -1535,21 +1479,6 @@ function _run_under_systemd {
     $SYSTEMCTL start $systemd_service
 }
 
-# Helper to remove the ``*.failure`` files under ``$SERVICE_DIR/$SCREEN_NAME``.
-# This is used for ``service_check`` when all the ``screen_it`` are called finished
-# Uses globals ``SCREEN_NAME``, ``SERVICE_DIR``
-# init_service_check
-function init_service_check {
-    SCREEN_NAME=${SCREEN_NAME:-stack}
-    SERVICE_DIR=${SERVICE_DIR:-${DEST}/status}
-
-    if [[ ! -d "$SERVICE_DIR/$SCREEN_NAME" ]]; then
-        mkdir -p "$SERVICE_DIR/$SCREEN_NAME"
-    fi
-
-    rm -f "$SERVICE_DIR/$SCREEN_NAME"/*.failure
-}
-
 # Find out if a process exists by partial name.
 # is_running name
 function is_running {
@@ -1576,135 +1505,11 @@ function run_process {
 
     time_start "run_process"
     if is_service_enabled $service; then
-        if [[ "$USE_SYSTEMD" = "True" ]]; then
-            _run_under_systemd "$name" "$command" "$group" "$user"
-        elif [[ "$USE_SCREEN" = "True" ]]; then
-            if [[ "$user" == "root" ]]; then
-                command="sudo $command"
-            fi
-            screen_process "$name" "$command" "$group"
-        else
-            # Spawn directly without screen
-            if [[ "$user" == "root" ]]; then
-                command="sudo $command"
-            fi
-            _run_process "$name" "$command" "$group" &
-        fi
+        _run_under_systemd "$name" "$command" "$group" "$user"
     fi
     time_stop "run_process"
 }
 
-# Helper to launch a process in a named screen
-# Uses globals ``CURRENT_LOG_TIME``, ```LOGDIR``, ``SCREEN_LOGDIR``, `SCREEN_NAME``,
-# ``SERVICE_DIR``, ``SCREEN_IS_LOGGING``
-# screen_process name "command-line" [group]
-# Run a command in a shell in a screen window, if an optional group
-# is provided, use sg to set the group of the command.
-function screen_process {
-    local name=$1
-    local command="$2"
-    local group=$3
-
-    SCREEN_NAME=${SCREEN_NAME:-stack}
-    SERVICE_DIR=${SERVICE_DIR:-${DEST}/status}
-
-    screen -S $SCREEN_NAME -X screen -t $name
-
-    local logfile="${name}.log.${CURRENT_LOG_TIME}"
-    local real_logfile="${LOGDIR}/${logfile}"
-    echo "LOGDIR: $LOGDIR"
-    echo "SCREEN_LOGDIR: $SCREEN_LOGDIR"
-    echo "log: $real_logfile"
-    if [[ -n ${LOGDIR} ]]; then
-        if [[ "$SCREEN_IS_LOGGING" == "True" ]]; then
-            screen -S $SCREEN_NAME -p $name -X logfile "$real_logfile"
-            screen -S $SCREEN_NAME -p $name -X log on
-        fi
-        # If logging isn't active then avoid a broken symlink
-        touch "$real_logfile"
-        bash -c "cd '$LOGDIR' && ln -sf '$logfile' ${name}.log"
-        if [[ -n ${SCREEN_LOGDIR} ]]; then
-            # Drop the backward-compat symlink
-            ln -sf "$real_logfile" ${SCREEN_LOGDIR}/screen-${1}.log
-        fi
-    fi
-
-    # sleep to allow bash to be ready to be send the command - we are
-    # creating a new window in screen and then sends characters, so if
-    # bash isn't running by the time we send the command, nothing
-    # happens.  This sleep was added originally to handle gate runs
-    # where we needed this to be at least 3 seconds to pass
-    # consistently on slow clouds. Now this is configurable so that we
-    # can determine a reasonable value for the local case which should
-    # be much smaller.
-    sleep ${SCREEN_SLEEP:-3}
-
-    NL=`echo -ne '\015'`
-    # This fun command does the following:
-    # - the passed server command is backgrounded
-    # - the pid of the background process is saved in the usual place
-    # - the server process is brought back to the foreground
-    # - if the server process exits prematurely the fg command errors
-    # and a message is written to stdout and the process failure file
-    #
-    # The pid saved can be used in stop_process() as a process group
-    # id to kill off all child processes
-    if [[ -n "$group" ]]; then
-        command="sg $group '$command'"
-    fi
-
-    # Append the process to the screen rc file
-    screen_rc "$name" "$command"
-
-    screen -S $SCREEN_NAME -p $name -X stuff "$command & echo \$! >$SERVICE_DIR/$SCREEN_NAME/${name}.pid; fg || echo \"$name failed to start. Exit code: \$?\" | tee \"$SERVICE_DIR/$SCREEN_NAME/${name}.failure\"$NL"
-}
-
-# Screen rc file builder
-# Uses globals ``SCREEN_NAME``, ``SCREENRC``, ``SCREEN_IS_LOGGING``
-# screen_rc service "command-line"
-function screen_rc {
-    SCREEN_NAME=${SCREEN_NAME:-stack}
-    SCREENRC=$TOP_DIR/$SCREEN_NAME-screenrc
-    if [[ ! -e $SCREENRC ]]; then
-        # Name the screen session
-        echo "sessionname $SCREEN_NAME" > $SCREENRC
-        # Set a reasonable statusbar
-        echo "hardstatus alwayslastline '$SCREEN_HARDSTATUS'" >> $SCREENRC
-        # Some distributions override PROMPT_COMMAND for the screen terminal type - turn that off
-        echo "setenv PROMPT_COMMAND /bin/true" >> $SCREENRC
-        echo "screen -t shell bash" >> $SCREENRC
-    fi
-    # If this service doesn't already exist in the screenrc file
-    if ! grep $1 $SCREENRC 2>&1 > /dev/null; then
-        NL=`echo -ne '\015'`
-        echo "screen -t $1 bash" >> $SCREENRC
-        echo "stuff \"$2$NL\"" >> $SCREENRC
-
-        if [[ -n ${LOGDIR} ]] && [[ "$SCREEN_IS_LOGGING" == "True" ]]; then
-            echo "logfile ${LOGDIR}/${1}.log.${CURRENT_LOG_TIME}" >>$SCREENRC
-            echo "log on" >>$SCREENRC
-        fi
-    fi
-}
-
-# Stop a service in screen
-# If a PID is available use it, kill the whole process group via TERM
-# If screen is being used kill the screen window; this will catch processes
-# that did not leave a PID behind
-# Uses globals ``SCREEN_NAME``, ``SERVICE_DIR``
-# screen_stop_service service
-function screen_stop_service {
-    local service=$1
-
-    SCREEN_NAME=${SCREEN_NAME:-stack}
-    SERVICE_DIR=${SERVICE_DIR:-${DEST}/status}
-
-    if is_service_enabled $service; then
-        # Clean up the screen window
-        screen -S $SCREEN_NAME -p $service -X kill || true
-    fi
-}
-
 # Stop a service process
 # If a PID is available use it, kill the whole process group via TERM
 # If screen is being used kill the screen window; this will catch processes
@@ -1724,149 +1529,27 @@ function stop_process {
             $SYSTEMCTL stop devstack@$service.service
             $SYSTEMCTL disable devstack@$service.service
         fi
-
-        if [[ -r $SERVICE_DIR/$SCREEN_NAME/$service.pid ]]; then
-            pkill -g $(cat $SERVICE_DIR/$SCREEN_NAME/$service.pid)
-            # oslo.service tends to stop actually shutting down
-            # reliably in between releases because someone believes it
-            # is dying too early due to some inflight work they
-            # have. This is a tension. It happens often enough we're
-            # going to just account for it in devstack and assume it
-            # doesn't work.
-            #
-            # Set OSLO_SERVICE_WORKS=True to skip this block
-            if [[ -z "$OSLO_SERVICE_WORKS" ]]; then
-                # TODO(danms): Remove this double-kill when we have
-                # this fixed in all services:
-                # https://bugs.launchpad.net/oslo-incubator/+bug/1446583
-                sleep 1
-                # /bin/true because pkill on a non existent process returns an error
-                pkill -g $(cat $SERVICE_DIR/$SCREEN_NAME/$service.pid) || /bin/true
-            fi
-            rm $SERVICE_DIR/$SCREEN_NAME/$service.pid
-        fi
-        if [[ "$USE_SCREEN" = "True" ]]; then
-            # Clean up the screen window
-            screen_stop_service $service
-        fi
     fi
 }
 
-# Helper to get the status of each running service
-# Uses globals ``SCREEN_NAME``, ``SERVICE_DIR``
-# service_check
+# use systemctl to check service status
 function service_check {
     local service
-    local failures
-    SCREEN_NAME=${SCREEN_NAME:-stack}
-    SERVICE_DIR=${SERVICE_DIR:-${DEST}/status}
-
-
-    if [[ ! -d "$SERVICE_DIR/$SCREEN_NAME" ]]; then
-        echo "No service status directory found"
-        return
-    fi
-
-    # Check if there is any failure flag file under $SERVICE_DIR/$SCREEN_NAME
-    # make this -o errexit safe
-    failures=`ls "$SERVICE_DIR/$SCREEN_NAME"/*.failure 2>/dev/null || /bin/true`
-
-    for service in $failures; do
-        service=`basename $service`
-        service=${service%.failure}
-        echo "Error: Service $service is not running"
-    done
-
-    if [ -n "$failures" ]; then
-        die $LINENO "More details about the above errors can be found with screen"
-    fi
-}
-
-# Tail a log file in a screen if USE_SCREEN is true.
-# Uses globals ``USE_SCREEN``
-function tail_log {
-    local name=$1
-    local logfile=$2
-
-    if [[ "$USE_SCREEN" = "True" ]]; then
-        screen_process "$name" "sudo tail -f $logfile | sed -u 's/\\\\\\\\x1b/\o033/g'"
-    fi
-}
-
-
-# Deprecated Functions
-# --------------------
-
-# _old_run_process() is designed to be backgrounded by old_run_process() to simulate a
-# fork.  It includes the dirty work of closing extra filehandles and preparing log
-# files to produce the same logs as screen_it().  The log filename is derived
-# from the service name and global-and-now-misnamed ``SCREEN_LOGDIR``
-# Uses globals ``CURRENT_LOG_TIME``, ``SCREEN_LOGDIR``, ``SCREEN_NAME``, ``SERVICE_DIR``
-# _old_run_process service "command-line"
-function _old_run_process {
-    local service=$1
-    local command="$2"
-
-    # Undo logging redirections and close the extra descriptors
-    exec 1>&3
-    exec 2>&3
-    exec 3>&-
-    exec 6>&-
-
-    if [[ -n ${SCREEN_LOGDIR} ]]; then
-        exec 1>&${SCREEN_LOGDIR}/screen-${1}.log.${CURRENT_LOG_TIME} 2>&1
-        ln -sf ${SCREEN_LOGDIR}/screen-${1}.log.${CURRENT_LOG_TIME} ${SCREEN_LOGDIR}/screen-${1}.log
-
-        # TODO(dtroyer): Hack to get stdout from the Python interpreter for the logs.
-        export PYTHONUNBUFFERED=1
-    fi
-
-    exec /bin/bash -c "$command"
-    die "$service exec failure: $command"
-}
-
-# old_run_process() launches a child process that closes all file descriptors and
-# then exec's the passed in command.  This is meant to duplicate the semantics
-# of screen_it() without screen.  PIDs are written to
-# ``$SERVICE_DIR/$SCREEN_NAME/$service.pid`` by the spawned child process.
-# old_run_process service "command-line"
-function old_run_process {
-    local service=$1
-    local command="$2"
-
-    # Spawn the child process
-    _old_run_process "$service" "$command" &
-    echo $!
-}
-
-# Compatibility for existing start_XXXX() functions
-# Uses global ``USE_SCREEN``
-# screen_it service "command-line"
-function screen_it {
-    if is_service_enabled $1; then
-        # Append the service to the screen rc file
-        screen_rc "$1" "$2"
-
-        if [[ "$USE_SCREEN" = "True" ]]; then
-            screen_process "$1" "$2"
-        else
-            # Spawn directly without screen
-            old_run_process "$1" "$2" >$SERVICE_DIR/$SCREEN_NAME/$1.pid
+    for service in ${ENABLED_SERVICES//,/ }; do
+        # because some things got renamed like key => keystone
+        if $SYSTEMCTL is-enabled devstack@$service.service; then
+            # no-pager is needed because otherwise status dumps to a
+            # pager when in interactive mode, which will stop a manual
+            # devstack run.
+            $SYSTEMCTL status devstack@$service.service --no-pager
         fi
-    fi
+    done
 }
 
-# Compatibility for existing stop_XXXX() functions
-# Stop a service in screen
-# If a PID is available use it, kill the whole process group via TERM
-# If screen is being used kill the screen window; this will catch processes
-# that did not leave a PID behind
-# screen_stop service
-function screen_stop {
-    # Clean up the screen window
-    stop_process $1
-}
 
+function tail_log {
+    deprecated "With the removal of screen support, tail_log is deprecated and will be removed after Queens"
+}
 
 # Plugin Functions
 # =================
diff --git a/lib/nova b/lib/nova
index 581cd548ff..bd6695afdf 100644
--- a/lib/nova
+++ b/lib/nova
@@ -573,10 +573,6 @@ function create_nova_conf {
         if [[ -n ${LOGDIR} ]]; then
             bash -c "cd '$LOGDIR' && ln -sf '$logfile' ${service}.log"
             iniset "$NOVA_CONF_DIR/nova-dhcpbridge.conf" DEFAULT log_file "$real_logfile"
-            if [[ -n ${SCREEN_LOGDIR} ]]; then
-                # Drop the backward-compat symlink
-                ln -sf "$real_logfile" ${SCREEN_LOGDIR}/screen-${service}.log
-            fi
         fi
 
         iniset $NOVA_CONF DEFAULT dhcpbridge_flagfile "$NOVA_CONF_DIR/nova-dhcpbridge.conf"
diff --git a/stack.sh b/stack.sh
index 301e1e7c6b..6e930ad234 100755
--- a/stack.sh
+++ b/stack.sh
@@ -228,16 +228,6 @@ if [[ ! ${DISTRO} =~ (xenial|yakkety|zesty|stretch|jessie|f24|f25|f26|opensuse-4
     fi
 fi
 
-# Check to see if we are already running DevStack
-# Note that this may fail if USE_SCREEN=False
-if type -p screen > /dev/null && screen -ls | egrep -q "[0-9]\.$SCREEN_NAME"; then
-    echo "You are already running a stack.sh session."
-    echo "To rejoin this session type 'screen -x stack'."
-    echo "To destroy this session, type './unstack.sh'."
-    exit 1
-fi
-
-
 # Local Settings
 # --------------
 
@@ -491,24 +481,6 @@ else
     exec 6> >( $TOP_DIR/tools/outfilter.py -v >&3 )
 fi
 
-# Set up logging of screen windows
-# Set ``SCREEN_LOGDIR`` to turn on logging of screen windows to the
-# directory specified in ``SCREEN_LOGDIR``, we will log to the file
-# ``screen-$SERVICE_NAME-$TIMESTAMP.log`` in that dir and have a link
-# ``screen-$SERVICE_NAME.log`` to the latest log file.
-# Logs are kept for as long specified in ``LOGDAYS``.
-# This is deprecated....logs go in ``LOGDIR``, only symlinks will be here now.
-if [[ -n "$SCREEN_LOGDIR" ]]; then
-
-    # We make sure the directory is created.
-    if [[ -d "$SCREEN_LOGDIR" ]]; then
-        # We cleanup the old logs
-        find $SCREEN_LOGDIR -maxdepth 1 -name screen-\*.log -mtime +$LOGDAYS -exec rm {} \;
-    else
-        mkdir -p $SCREEN_LOGDIR
-    fi
-fi
-
 # Basic test for ``$DEST`` path permissions (fatal on error unless skipped)
 check_path_perm_sanity ${DEST}
 
@@ -1015,38 +987,6 @@ if is_service_enabled $DATABASE_BACKENDS; then
     configure_database
 fi
 
-
-# Configure screen
-# ----------------
-
-USE_SCREEN=$(trueorfalse True USE_SCREEN)
-if [[ "$USE_SCREEN" == "True" ]]; then
-    # Create a new named screen to run processes in
-    screen -d -m -S $SCREEN_NAME -t shell -s /bin/bash
-    sleep 1
-
-    # Set a reasonable status bar
-    SCREEN_HARDSTATUS=${SCREEN_HARDSTATUS:-}
-    if [ -z "$SCREEN_HARDSTATUS" ]; then
-        SCREEN_HARDSTATUS='%{= .} %-Lw%{= .}%> %n%f %t*%{= .}%+Lw%< %-=%{g}(%{d}%H/%l%{g})'
-    fi
-    screen -r $SCREEN_NAME -X hardstatus alwayslastline "$SCREEN_HARDSTATUS"
-    screen -r $SCREEN_NAME -X setenv PROMPT_COMMAND /bin/true
-
-    if is_service_enabled tls-proxy; then
-        follow_tls_proxy
-    fi
-fi
-
-# Clear ``screenrc`` file
-SCREENRC=$TOP_DIR/$SCREEN_NAME-screenrc
-if [[ -e $SCREENRC ]]; then
-    rm -f $SCREENRC
-fi
-
-# Initialize the directory for service status check
-init_service_check
-
 # Save configuration values
 save_stackenv $LINENO
 
diff --git a/stackrc b/stackrc
index b123d8ac7c..787ae28a29 100644
--- a/stackrc
+++ b/stackrc
@@ -88,22 +88,9 @@ CELLSV2_SETUP=${CELLSV2_SETUP:-"superconductor"}
 # Set the root URL for Horizon
 HORIZON_APACHE_ROOT="/dashboard"
 
-# TODO(sdague): Queens
-#
-# All the non systemd paths should be removed in queens, they only
-# exist in Pike to support testing from grenade. Ensure that all this
-# is cleaned up and purged, which should dramatically simplify the
-# devstack codebase.
-
-# Whether to use 'dev mode' for screen windows. Dev mode works by
-# stuffing text into the screen windows so that a developer can use
-# ctrl-c, up-arrow, enter to restart the service. Starting services
-# this way is slightly unreliable, and a bit slower, so this can
-# be disabled for automated testing by setting this value to False.
-USE_SCREEN=$(trueorfalse False USE_SCREEN)
-
-# Whether to use SYSTEMD to manage services
-USE_SYSTEMD=$(trueorfalse False USE_SYSTEMD)
+# Whether to use SYSTEMD to manage services, we only do this from
+# Queens forward.
+USE_SYSTEMD="True"
 USER_UNITS=$(trueorfalse False USER_UNITS)
 if [[ "$USER_UNITS" == "True" ]]; then
     SYSTEMD_DIR="$HOME/.local/share/systemd/user"
@@ -122,16 +109,6 @@ fi
 # memory constrained than CPU bound.
 ENABLE_KSM=$(trueorfalse True ENABLE_KSM)
 
-# When using screen, should we keep a log file on disk?  You might
-# want this False if you have a long-running setup where verbose logs
-# can fill-up the host.
-# XXX: Ideally screen itself would be configured to log but just not
-# activate.  This isn't possible with the screerc syntax.  Temporary
-# logging can still be used by a developer with:
-#    C-a : logfile foo
-#    C-a : log on
-SCREEN_IS_LOGGING=$(trueorfalse True SCREEN_IS_LOGGING)
-
 # Passwords generated by interactive devstack runs
 if [[ -r $RC_DIR/.localrc.password ]]; then
     source $RC_DIR/.localrc.password
@@ -167,16 +144,6 @@ elif [[ -f $RC_DIR/.localrc.auto ]]; then
     source $RC_DIR/.localrc.auto
 fi
 
-# TODO(sdague): Delete all this in Queens.
-if [[ "$USE_SYSTEMD" == "True" ]]; then
-    USE_SCREEN=False
-fi
-# if we are forcing off USE_SCREEN (as we do in the gate), force on
-# systemd. This allows us to drop one of 3 paths through the code.
-if [[ "$USE_SCREEN" == "False" ]]; then
-    USE_SYSTEMD="True"
-fi
-
 # Default for log coloring is based on interactive-or-not.
 # Baseline assumption is that non-interactive invocations are for CI,
 # where logs are to be presented as browsable text files; hence color
@@ -755,9 +722,6 @@ PUBLIC_NETWORK_NAME=${PUBLIC_NETWORK_NAME:-"public"}
 
 PUBLIC_INTERFACE=${PUBLIC_INTERFACE:-""}
 
-# Set default screen name
-SCREEN_NAME=${SCREEN_NAME:-stack}
-
 # Allow the use of an alternate protocol (such as https) for service endpoints
 SERVICE_PROTOCOL=${SERVICE_PROTOCOL:-http}
 
@@ -877,15 +841,6 @@ RECREATE_KEYSTONE_DB=$(trueorfalse True RECREATE_KEYSTONE_DB)
 
 # Following entries need to be last items in file
 
-# Compatibility bits required by other callers like Grenade
-
-# Old way was using SCREEN_LOGDIR to locate those logs and LOGFILE for the stack.sh trace log.
-# LOGFILE       SCREEN_LOGDIR       output
-# not set       not set             no log files
-# set           not set             stack.sh log to LOGFILE
-# not set       set                 screen logs to SCREEN_LOGDIR
-# set           set                 stack.sh log to LOGFILE, screen logs to SCREEN_LOGDIR
-
 # New way is LOGDIR for all logs and LOGFILE for stack.sh trace log, but if not fully-qualified will be in LOGDIR
 # LOGFILE       LOGDIR              output
 # not set       not set             (new) set LOGDIR from default
@@ -893,9 +848,6 @@ RECREATE_KEYSTONE_DB=$(trueorfalse True RECREATE_KEYSTONE_DB)
 # not set       set                 screen logs to LOGDIR
 # set           set                 stack.sh log to LOGFILE, screen logs to LOGDIR
 
-# For compat, if SCREEN_LOGDIR is set, it will be used to create back-compat symlinks to the LOGDIR
-# symlinks to SCREEN_LOGDIR (compat)
-
 # Set up new logging defaults
 if [[ -z "${LOGDIR:-}" ]]; then
     default_logdir=$DEST/logs
@@ -910,12 +862,6 @@ if [[ -z "${LOGDIR:-}" ]]; then
             # LOGFILE had no path, set a default
             LOGDIR="$default_logdir"
         fi
-
-        # Check for duplication
-        if [[ "${SCREEN_LOGDIR:-}" == "${LOGDIR}" ]]; then
-            # We don't need the symlinks since it's the same directory
-            unset SCREEN_LOGDIR
-        fi
     fi
     unset default_logdir logfile
 fi
diff --git a/tests/run-process.sh b/tests/run-process.sh
deleted file mode 100755
index 301b9a032b..0000000000
--- a/tests/run-process.sh
+++ /dev/null
@@ -1,109 +0,0 @@
-#!/bin/bash
-# tests/exec.sh - Test DevStack run_process() and stop_process()
-#
-# exec.sh start|stop|status
-#
-# Set USE_SCREEN True|False to change use of screen.
-#
-# This script emulates the basic exec environment in ``stack.sh`` to test
-# the process spawn and kill operations.
-
-if [[ -z $1 ]]; then
-    echo "$0 start|stop"
-    exit 1
-fi
-
-TOP_DIR=$(cd $(dirname "$0")/.. && pwd)
-source $TOP_DIR/functions
-
-USE_SCREEN=${USE_SCREEN:-False}
-
-ENABLED_SERVICES=fake-service
-
-SERVICE_DIR=/tmp
-SCREEN_NAME=test
-SCREEN_LOGDIR=${SERVICE_DIR}/${SCREEN_NAME}
-
-
-# Kill background processes on exit
-trap clean EXIT
-clean() {
-    local r=$?
-    jobs -p
-    kill >/dev/null 2>&1 $(jobs -p)
-    exit $r
-}
-
-
-# Exit on any errors so that errors don't compound
-trap failed ERR
-failed() {
-    local r=$?
-    jobs -p
-    kill >/dev/null 2>&1 $(jobs -p)
-    set +o xtrace
-    [ -n "$LOGFILE" ] && echo "${0##*/} failed: full log in $LOGFILE"
-    exit $r
-}
-
-function status {
-    if [[ -r $SERVICE_DIR/$SCREEN_NAME/fake-service.pid ]]; then
-        pstree -pg $(cat $SERVICE_DIR/$SCREEN_NAME/fake-service.pid)
-    fi
-    ps -ef | grep fake
-}
-
-function setup_screen {
-if [[ ! -d $SERVICE_DIR/$SCREEN_NAME ]]; then
-    rm -rf $SERVICE_DIR/$SCREEN_NAME
-    mkdir -p $SERVICE_DIR/$SCREEN_NAME
-fi
-
-if [[ "$USE_SCREEN" == "True" ]]; then
-    # Create a new named screen to run processes in
-    screen -d -m -S $SCREEN_NAME -t shell -s /bin/bash
-    sleep 1
-
-    # Set a reasonable status bar
-    if [ -z "$SCREEN_HARDSTATUS" ]; then
-        SCREEN_HARDSTATUS='%{= .} %-Lw%{= .}%> %n%f %t*%{= .}%+Lw%< %-=%{g}(%{d}%H/%l%{g})'
-    fi
-    screen -r $SCREEN_NAME -X hardstatus alwayslastline "$SCREEN_HARDSTATUS"
-fi
-
-# Clear screen rc file
-SCREENRC=$TOP_DIR/tests/$SCREEN_NAME-screenrc
-if [[ -e $SCREENRC ]]; then
-    echo -n > $SCREENRC
-fi
-}
-
-# Mimic logging
-    # Set up output redirection without log files
-    # Copy stdout to fd 3
-    exec 3>&1
-    if [[ "$VERBOSE" != "True" ]]; then
-        # Throw away stdout and stderr
-        #exec 1>/dev/null 2>&1
-        :
-    fi
-    # Always send summary fd to original stdout
-    exec 6>&3
-
-
-if [[ "$1" == "start" ]]; then
-    echo "Start service"
-    setup_screen
-    run_process fake-service "$TOP_DIR/tests/fake-service.sh"
-    sleep 1
-    status
-elif [[ "$1" == "stop" ]]; then
-    echo "Stop service"
-    stop_process fake-service
-    status
-elif [[ "$1" == "status" ]]; then
-    status
-else
-    echo "Unknown command"
-    exit 1
-fi
diff --git a/unstack.sh b/unstack.sh
index 77a151f933..5d3672e25d 100755
--- a/unstack.sh
+++ b/unstack.sh
@@ -171,15 +171,6 @@ if is_service_enabled dstat; then
     stop_dstat
 fi
 
-# Clean up the remainder of the screen processes
-SCREEN=$(which screen)
-if [[ -n "$SCREEN" ]]; then
-    SESSION=$(screen -ls | awk "/[0-9]+.${SCREEN_NAME}/"'{ print $1 }')
-    if [[ -n "$SESSION" ]]; then
-        screen -X -S $SESSION quit
-    fi
-fi
-
 # NOTE: Cinder automatically installs the lvm2 package, independently of the
 # enabled backends. So if Cinder is enabled, and installed successfully we are
 # sure lvm2 (lvremove, /etc/lvm/lvm.conf, etc.) is here.