diff --git a/install b/install
index a3b0af97b2defbcd18ecdeca7248ab556598088e..21459dd5787212365ad06124356ca8593e321b2c 100755
--- a/install
+++ b/install
@@ -35,6 +35,7 @@ site_letter=${ifo:0:1}
 upper_system=`echo $system | tr a-z A-Z`
 targetcpu=`grep TARGET_CPU ${MODEL_INC_DIR}/${system}.h | head -1 | awk '{print $3}'`
 cur_date=`date +%y%m%d_%H%M%S`
+ligo_group='advligorts'
 
 RTCDS=/opt/rtcds/${site,,*}/${ifo,,*}
 TARGET=$RTCDS/target/${system}
@@ -61,6 +62,8 @@ else
     cp -p ${EPICS_SRC_DIR}/config/${ifo}${upper_system}.txt  $RTCDS/chans/${upper_system}.txt
 fi
 
+chgrp $ligo_group $RTCDS/chans/filter_archive/$system
+
 ##########
 
 echo "Installing EPICS sequencer..."
@@ -74,8 +77,14 @@ mkdir -p $TARGET/{bin,scripts,logs}
 chmod 775 $TARGET/logs
 mkdir -p $RTCDS/chans/tmp
 chmod 775 $RTCDS/chans/tmp
+chgrp $ligo_group $RTCDS/chans/tmp
 mkdir -p $TARGET/${system}epics/burt
 chmod 775 $TARGET/${system}epics/burt
+
+mkdir -p $RTCDS/log/${system}/
+chgrp $ligo_group $RTCDS/log/${system}/
+chmod g+rwx $RTCDS/log/${system}/
+
 if [ -e $RTCDS/target_archive/${system}/${system}_$cur_date/${system}epics/burt ]; then
     cp -pr $RTCDS/target_archive/${system}/${system}_$cur_date/${system}epics/burt $TARGET/${system}epics
 fi
@@ -86,6 +95,8 @@ if test -e $TARGET/${system}epics/db/*/autoBurt.req; then
     mv -f $TARGET/${system}epics/db/*/autoBurt.req $TARGET/${system}epics || exit 3
 fi
 
+chgrp $ligo_group $TARGET/${system}epics/burt/
+
 ##########
 
 echo "Installing EPICS screens..."
@@ -170,7 +181,9 @@ if [ x$gds_node != "x" ]; then
     echo "Installing auto-generated DAQ config file..."
 
     mkdir -p  $RTCDS/chans/daq
-    mkdir -p  $RTCDS/chans/daq/archive
+    mkdir -p  $RTCDS/chans/daq/archive/
+    chgrp $ligo_group $RTCDS/chans/daq/archive/
+    chmod g+rwx  $RTCDS/chans/daq/archive/
     if test -e $RTCDS/chans/daq/${upper_system}.ini; then
         mv -f $RTCDS/chans/daq/${upper_system}.ini $RTCDS/chans/daq/archive/${upper_system}_${cur_date}.ini || exit 2
         #