diff --git a/dist/functions.setup-appliance.sh b/dist/functions.setup-appliance.sh
index 7ab6d132bb28..8f1fa28a3d46 100755
--- a/dist/functions.setup-appliance.sh
+++ b/dist/functions.setup-appliance.sh
@@ -238,24 +238,31 @@ function prepare_database_setup {
   RAILS_ENV=production bin/rails db:migrate:status > /dev/null 2>&1
 
   if [[ $? > 0 ]];then
-    if ! [[ "$(lsb_release -si)" =~ ^(Debian|Ubuntu)$ ]];then
-      echo "Initialize MySQL databases (first time only)"
-      DATADIR_FILE=$(grep datadir -rl /etc/my.cnf*)
-      echo " - reconfiguring datadir in $DATADIR_FILE"
-      sed -i -E '0,/(#\s*)?datadir/ s!#\s*datadir\s*=\s*/var/lib/mysql$!datadir = /srv/obs/MySQL!' $DATADIR_FILE
-      echo " - installing to new datadir"
-      mysql_install_db
-      echo " - changing ownership for new datadir"
-      chown mysql:mysql -R /srv/obs/MySQL
-      MYSQL_LOG=$(grep log-error /etc/my.cnf.d/*.cnf|perl -p -e 's/.*:log-error=(.*)/$1/')
-      if [ -n "$MYSQL_LOG" ];then
-        echo " - prepare log file $MYSQL_LOG"
-        LOG_DIR=`dirname $MYSQL_LOG`
-        if [ ! -d $LOG_DIR ];then
-          mkdir -p $LOG_DIR
-          chown mysql:mysql $LOG_DIR
-      fi
-    fi
+    . /etc/os-release
+    for d in $ID_LIKE $ID;do
+      case $d in
+        ubuntu|debian) ;;
+        *)
+          echo "Initialize MySQL databases (first time only)"
+          DATADIR_FILE=$(grep datadir -rl /etc/my.cnf*)
+          echo " - reconfiguring datadir in $DATADIR_FILE"
+          sed -i -E '0,/(#\s*)?datadir/ s!#\s*datadir\s*=\s*/var/lib/mysql$!datadir = /srv/obs/MySQL!' $DATADIR_FILE
+          echo " - installing to new datadir"
+          mysql_install_db
+          echo " - changing ownership for new datadir"
+          chown mysql:mysql -R /srv/obs/MySQL
+          MYSQL_LOG=$(grep log-error /etc/my.cnf.d/*.cnf|perl -p -e 's/.*:log-error=(.*)/$1/')
+          if [ -n "$MYSQL_LOG" ];then
+            echo " - prepare log file $MYSQL_LOG"
+            LOG_DIR=`dirname $MYSQL_LOG`
+            if [ ! -d $LOG_DIR ];then
+              mkdir -p $LOG_DIR
+              chown mysql:mysql $LOG_DIR
+            fi
+          fi
+         ;;
+      esac
+    done
     RUN_INITIAL_SETUP="true"
   fi
 
@@ -356,7 +363,7 @@ function import_ca_cert {
   # apache has to trust the api ssl certificate
   if [ ! -e /etc/ssl/certs/server.${FQHOSTNAME}.crt ]; then
     cp $backenddir/certs/server.${FQHOSTNAME}.crt \
-      ${TRUST_ANCHORS_DIR}/server.${FQHOSTNAME}.pem
+      ${TRUST_ANCHORS_DIR}/server.${FQHOSTNAME}.${SSL_CERT_SUFFIX}
     $UPDATE_SSL_TRUST_BIN
   fi
 }
@@ -499,11 +506,13 @@ function prepare_apache2 {
 
   PKG2INST=""
   for pkg in $APACHE_ADDITIONAL_PACKAGES;do
-    if [[ "$(lsb_release -si)" =~ ^(Debian|Ubuntu)$ ]]; then
-      dpkg -l $pkg >/dev/null 2>&1 || PKG2INST="$PKG2INST $pkg"
-    else
-      rpm -q $pkg >/dev/null || PKG2INST="$PKG2INST $pkg"
-    fi
+    . /etc/os-release
+    for d in $ID_LIKE $ID;do
+      case $d in
+        ubuntu|debian) dpkg -l $pkg >/dev/null 2>&1 || PKG2INST="$PKG2INST $pkg" ;;
+        *) rpm -q $pkg >/dev/null || PKG2INST="$PKG2INST $pkg" ;;
+      esac
+    done
   done
 
   if [[ -n $PKG2INST ]];then
@@ -513,7 +522,12 @@ function prepare_apache2 {
   if [ "$CONFIGURE_APACHE" == 1 ];then
     MODULES="passenger rewrite proxy proxy_http headers socache_shmcb xforward"
     FLAGS=""
-    [[ "$(lsb_release -si)" =~ ^(Debian|Ubuntu)$ ]] && MODULES="$MODULES ssl" || FLAGS=SSL
+    for d in $ID_LIKE $ID;do
+      case $d in
+        ubuntu|debian) MODULES="$MODULES ssl" ;;
+        *) FLAGS=SSL ;;
+      esac
+    done
 
     for mod in $MODULES;do
       a2enmod -q $mod || a2enmod $mod
@@ -619,6 +633,7 @@ function prepare_os_settings {
         HTTPD_GROUP=www
         PASSENGER_CONF=/etc/$HTTPD_SERVICE/conf.d/mod_passenger.conf
         TRUST_ANCHORS_DIR=/usr/share/pki/trust/anchors
+	SSL_CERT_SUFFIX=pem
         UPDATE_SSL_TRUST_BIN=update-ca-certificates
         MOD_PASSENGER_CONF=/etc/$HTTPD_SERVICE/conf.d/mod_passenger.conf
         INST_PACKAGES_CMD="zypper --non-interactive install"
@@ -634,6 +649,7 @@ function prepare_os_settings {
         HTTPD_GROUP=apache
         PASSENGER_CONF=/etc/$HTTPD_SERVICE/conf.d/passenger.conf
         TRUST_ANCHORS_DIR=/etc/pki/ca-trust/source/anchors
+	SSL_CERT_SUFFIX=pem
         UPDATE_SSL_TRUST_BIN=update-ca-trust
         MOD_PASSENGER_CONF=/etc/$HTTPD_SERVICE/conf.d/passenger.conf
         INST_PACKAGES_CMD="dnf -y install"
@@ -649,6 +665,7 @@ function prepare_os_settings {
         HTTPD_GROUP=www-data
         PASSENGER_CONF=/etc/$HTTPD_SERVICE/mods-available/passenger.conf
         TRUST_ANCHORS_DIR=/usr/local/share/ca-certificates
+	SSL_CERT_SUFFIX=crt
         UPDATE_SSL_TRUST_BIN=update-ca-certificates
         MOD_PASSENGER_CONF=/etc/$HTTPD_SERVICE/mods-available/passenger.conf
         INST_PACKAGES_CMD="apt-get install -qq -y"
diff --git a/dist/setup-appliance.sh b/dist/setup-appliance.sh
index d6fd1ef8f44b..9498ca74fe9e 100755
--- a/dist/setup-appliance.sh
+++ b/dist/setup-appliance.sh
@@ -20,11 +20,24 @@ MYSQL_PASS=opensuse
 PID_FILE=/run/setup-appliance.pid
 
 # package or appliance defaults
-if [[ "$(lsb_release -si)" =~ ^(Debian|Ubuntu)$ ]]; then
-  defaultsfile="/etc/default/obs-server"
+if [ -e /etc/os-release ];then
+  # execute in subshell to preserve the values of the variables
+  # $NAME and $VERSION as these are very generic
+  OS_NAME=`. /etc/os-release;echo $NAME`
+  OS_VERSION=`. /etc/os-release;echo $VERSION`
+  OS_ID_LIKE=`. /etc/os-release;echo $ID_LIKE`
+  OS_ID=`. /etc/os-release;echo $ID`
+  OS="$OS_NAME $OS_VERSION"
 else
-  defaultsfile="/etc/sysconfig/obs-server"
+  OS="UNKNOWN"
 fi
+
+for d in $OS_ID_LIKE $OS_ID;do
+  case $d in
+    ubuntu|debian) defaultsfile="/etc/default/obs-server" ;;
+    *) defaultsfile="/etc/sysconfig/obs-server" ;;
+  esac
+done
 if [ -e "$defaultsfile" ]; then
   source "$defaultsfile"
 fi
@@ -117,20 +130,12 @@ fi
 
 echo "$FQHOSTNAME" > $backenddir/.oldfqhostname
 
-if [ -e /etc/os-release ];then
-  # execute in subshell to preserve the values of the variables
-  # $NAME and $VERSION as these are very generic
-  OS_NAME=`. /etc/os-release;echo $NAME`
-  OS_VERSION=`. /etc/os-release;echo $VERSION`
-  OS="$OS_NAME $OS_VERSION"
-else
-  OS="UNKNOWN"
-fi
-if [[ "$OS_NAME" =~ ^(Debian|Ubuntu)$ ]]; then
-  OBSVERSION=`dpkg-query --showformat='${Version}' --show obs-server`
-else
-  OBSVERSION=`rpm -q --qf '%{VERSION}' obs-server`
-fi
+for d in $OS_ID_LIKE $OS_ID;do
+  case $d in
+    ubuntu|debian) OBSVERSION=`dpkg-query --showformat='${Version}' --show obs-server` ;;
+    *) OBSVERSION=`rpm -q --qf '%{VERSION}' obs-server` ;;
+  esac
+done
 
 RUN_INITIAL_SETUP=""