diff --git a/scripts/check_init_admin.py b/scripts/check_init_admin.py
index 76d0e84..8c412d3 100644
--- a/scripts/check_init_admin.py
+++ b/scripts/check_init_admin.py
@@ -22,7 +22,7 @@ except ImportError:
     pass
 
 
-SERVER_MANUAL_HTTP = 'https://github.com/haiwen/seafile/wiki'
+SERVER_MANUAL_HTTP = 'https://download.seafile.com/published/seafile-manual/home.md'
 
 class Utils(object):
     '''Groups all helper functions here'''
diff --git a/scripts/reset-admin.sh b/scripts/reset-admin.sh
index 2e2554d..a77e105 100755
--- a/scripts/reset-admin.sh
+++ b/scripts/reset-admin.sh
@@ -4,6 +4,7 @@ SCRIPT=$(readlink -f "$0")
 INSTALLPATH=$(dirname "${SCRIPT}")
 TOPDIR=$(dirname "${INSTALLPATH}")
 default_ccnet_conf_dir=${TOPDIR}/ccnet
+default_seafile_data_dir=${TOPDIR}/seafile-data
 central_config_dir=${TOPDIR}/conf
 
 function check_python_executable() {
@@ -31,26 +32,20 @@ function check_python_executable() {
     fi
 }
 
-function read_seafile_data_dir () {
-    seafile_ini=${default_ccnet_conf_dir}/seafile.ini
-    if [[ ! -f ${seafile_ini} ]]; then
-        echo "${seafile_ini} not found. Now quit"
-        exit 1
-    fi
-    seafile_data_dir=$(cat "${seafile_ini}")
-    if [[ ! -d ${seafile_data_dir} ]]; then
-        echo "Your seafile server data directory \"${seafile_data_dir}\" is invalid or doesn't exits."
-        echo "Please check it first, or create this directory yourself."
+function validate_seafile_data_dir () {
+    if [[ ! -d ${default_seafile_data_dir} ]]; then
+        echo "Error: there is no seafile server data directory."
+        echo "Have you run setup-seafile.sh before this?"
         echo ""
         exit 1;
     fi
 }
 
 check_python_executable;
-read_seafile_data_dir;
+validate_seafile_data_dir;
 
 export CCNET_CONF_DIR=${default_ccnet_conf_dir}
-export SEAFILE_CONF_DIR=${seafile_data_dir}
+export SEAFILE_CONF_DIR=${default_seafile_data_dir}
 export SEAFILE_CENTRAL_CONF_DIR=${central_config_dir}
 export PYTHONPATH=${INSTALLPATH}/seafile/lib/python3.6/site-packages:${INSTALLPATH}/seafile/lib64/python3.6/site-packages:${INSTALLPATH}/seahub/thirdpart:$PYTHONPATH
 
diff --git a/scripts/seaf-fsck.sh b/scripts/seaf-fsck.sh
index 18b654b..2fd7629 100755
--- a/scripts/seaf-fsck.sh
+++ b/scripts/seaf-fsck.sh
@@ -6,6 +6,7 @@ SCRIPT=$(readlink -f "$0")
 INSTALLPATH=$(dirname "${SCRIPT}")
 TOPDIR=$(dirname "${INSTALLPATH}")
 default_ccnet_conf_dir=${TOPDIR}/ccnet
+default_seafile_data_dir=${TOPDIR}/seafile-data
 default_conf_dir=${TOPDIR}/conf
 seaf_fsck=${INSTALLPATH}/seafile/bin/seaf-fsck
 
@@ -28,16 +29,10 @@ function validate_ccnet_conf_dir () {
     fi
 }
 
-function read_seafile_data_dir () {
-    seafile_ini=${default_ccnet_conf_dir}/seafile.ini
-    if [[ ! -f ${seafile_ini} ]]; then
-        echo "${seafile_ini} not found. Now quit"
-        exit 1
-    fi
-    seafile_data_dir=$(cat "${seafile_ini}")
-    if [[ ! -d ${seafile_data_dir} ]]; then
-        echo "Your seafile server data directory \"${seafile_data_dir}\" is invalid or doesn't exits."
-        echo "Please check it first, or create this directory yourself."
+function validate_seafile_data_dir () {
+    if [[ ! -d ${default_seafile_data_dir} ]]; then
+        echo "Error: there is no seafile server data directory."
+        echo "Have you run setup-seafile.sh before this?"
         echo ""
         exit 1;
     fi
@@ -45,13 +40,13 @@ function read_seafile_data_dir () {
 
 function run_seaf_fsck () {
     validate_ccnet_conf_dir;
-    read_seafile_data_dir;
+    validate_seafile_data_dir;
 
     echo "Starting seaf-fsck, please wait ..."
     echo
 
     LD_LIBRARY_PATH=$SEAFILE_LD_LIBRARY_PATH ${seaf_fsck} \
-        -c "${default_ccnet_conf_dir}" -d "${seafile_data_dir}" \
+        -c "${default_ccnet_conf_dir}" -d "${default_seafile_data_dir}" \
         -F "${default_conf_dir}" \
         ${seaf_fsck_opts}
 
diff --git a/scripts/seaf-fuse.sh b/scripts/seaf-fuse.sh
index d67a45a..a60b186 100755
--- a/scripts/seaf-fuse.sh
+++ b/scripts/seaf-fuse.sh
@@ -6,6 +6,7 @@ SCRIPT=$(readlink -f "$0")
 INSTALLPATH=$(dirname "${SCRIPT}")
 TOPDIR=$(dirname "${INSTALLPATH}")
 default_ccnet_conf_dir=${TOPDIR}/ccnet
+default_seafile_data_dir=${TOPDIR}/seafile-data
 default_conf_dir=${TOPDIR}/conf
 seaf_fuse=${INSTALLPATH}/seafile/bin/seaf-fuse
 
@@ -44,16 +45,10 @@ function validate_ccnet_conf_dir () {
     fi
 }
 
-function read_seafile_data_dir () {
-    seafile_ini=${default_ccnet_conf_dir}/seafile.ini
-    if [[ ! -f ${seafile_ini} ]]; then
-        echo "${seafile_ini} not found. Now quit"
-        exit 1
-    fi
-    seafile_data_dir=$(cat "${seafile_ini}")
-    if [[ ! -d ${seafile_data_dir} ]]; then
-        echo "Your seafile server data directory \"${seafile_data_dir}\" is invalid or doesn't exits."
-        echo "Please check it first, or create this directory yourself."
+function validate_seafile_data_dir () {
+    if [[ ! -d ${default_seafile_data_dir} ]]; then
+        echo "Error: there is no seafile server data directory."
+        echo "Have you run setup-seafile.sh before this?"
         echo ""
         exit 1;
     fi
@@ -79,7 +74,7 @@ function start_seaf_fuse () {
     validate_already_running;
     warning_if_seafile_not_running;
     validate_ccnet_conf_dir;
-    read_seafile_data_dir;
+    validate_seafile_data_dir;
 
     echo "Starting seaf-fuse, please wait ..."
 
@@ -87,7 +82,7 @@ function start_seaf_fuse () {
 
     LD_LIBRARY_PATH=$SEAFILE_LD_LIBRARY_PATH ${seaf_fuse} \
         -c "${default_ccnet_conf_dir}" \
-        -d "${seafile_data_dir}" \
+        -d "${default_seafile_data_dir}" \
         -F "${default_conf_dir}" \
         -l "${logfile}" \
         "$@"
diff --git a/scripts/seaf-gc.sh b/scripts/seaf-gc.sh
index f33ad20..7537b57 100755
--- a/scripts/seaf-gc.sh
+++ b/scripts/seaf-gc.sh
@@ -6,6 +6,7 @@ SCRIPT=$(readlink -f "$0")
 INSTALLPATH=$(dirname "${SCRIPT}")
 TOPDIR=$(dirname "${INSTALLPATH}")
 default_ccnet_conf_dir=${TOPDIR}/ccnet
+default_seafile_data_dir=${TOPDIR}/seafile-data
 default_conf_dir=${TOPDIR}/conf
 seaf_gc=${INSTALLPATH}/seafile/bin/seafserv-gc
 seaf_gc_opts=""
@@ -30,16 +31,10 @@ function validate_ccnet_conf_dir () {
     fi
 }
 
-function read_seafile_data_dir () {
-    seafile_ini=${default_ccnet_conf_dir}/seafile.ini
-    if [[ ! -f ${seafile_ini} ]]; then
-        echo "${seafile_ini} not found. Now quit"
-        exit 1
-    fi
-    seafile_data_dir=$(cat "${seafile_ini}")
-    if [[ ! -d ${seafile_data_dir} ]]; then
-        echo "Your seafile server data directory \"${seafile_data_dir}\" is invalid or doesn't exits."
-        echo "Please check it first, or create this directory yourself."
+function validate_seafile_data_dir () {
+    if [[ ! -d ${default_seafile_data_dir} ]]; then
+        echo "Error: there is no seafile server data directory."
+        echo "Have you run setup-seafile.sh before this?"
         echo ""
         exit 1;
     fi
@@ -75,13 +70,13 @@ function validate_already_running () {
 function run_seaf_gc () {
     validate_already_running;
     validate_ccnet_conf_dir;
-    read_seafile_data_dir;
+    validate_seafile_data_dir;
 
     echo "Starting seafserv-gc, please wait ..."
 
     LD_LIBRARY_PATH=$SEAFILE_LD_LIBRARY_PATH ${seaf_gc} \
         -c "${default_ccnet_conf_dir}" \
-        -d "${seafile_data_dir}" \
+        -d "${default_seafile_data_dir}" \
         -F "${default_conf_dir}" \
         ${seaf_gc_opts}
 
diff --git a/scripts/seafile.sh b/scripts/seafile.sh
index 4be558f..3b4f879 100755
--- a/scripts/seafile.sh
+++ b/scripts/seafile.sh
@@ -16,10 +16,10 @@ SCRIPT=$(readlink -f "$0")
 INSTALLPATH=$(dirname "${SCRIPT}")
 TOPDIR=$(dirname "${INSTALLPATH}")
 default_ccnet_conf_dir=${TOPDIR}/ccnet
+default_seafile_data_dir=${TOPDIR}/seafile-data
 central_config_dir=${TOPDIR}/conf
 seaf_controller="${INSTALLPATH}/seafile/bin/seafile-controller"
 
-
 export PATH=${INSTALLPATH}/seafile/bin:$PATH
 export ORIG_LD_LIBRARY_PATH=${LD_LIBRARY_PATH}
 export SEAFILE_LD_LIBRARY_PATH=${INSTALLPATH}/seafile/lib/:${INSTALLPATH}/seafile/lib64:${LD_LIBRARY_PATH}
@@ -38,7 +38,7 @@ if [[ $# != 1 || ( "$1" != "start" && "$1" != "stop" && "$1" != "restart" ) ]];
 fi
 
 function validate_running_user () {
-    real_data_dir=`readlink -f ${seafile_data_dir}`
+    real_data_dir=`readlink -f ${default_seafile_data_dir}`
     running_user=`id -un`
     data_dir_owner=`stat -c %U ${real_data_dir}`
 
@@ -66,16 +66,10 @@ function validate_central_conf_dir () {
     fi
 }
 
-function read_seafile_data_dir () {
-    seafile_ini=${default_ccnet_conf_dir}/seafile.ini
-    if [[ ! -f ${seafile_ini} ]]; then
-        echo "${seafile_ini} not found. Now quit"
-        exit 1
-    fi
-    seafile_data_dir=$(cat "${seafile_ini}")
-    if [[ ! -d ${seafile_data_dir} ]]; then
-        echo "Your seafile server data directory \"${seafile_data_dir}\" is invalid or doesn't exits."
-        echo "Please check it first, or create this directory yourself."
+function validate_seafile_data_dir () {
+    if [[ ! -d ${default_seafile_data_dir} ]]; then
+        echo "Error: there is no seafile server data directory."
+        echo "Have you run setup-seafile.sh before this?"
         echo ""
         exit 1;
     fi
@@ -84,7 +78,7 @@ function read_seafile_data_dir () {
 function test_config() {
     if ! LD_LIBRARY_PATH=$SEAFILE_LD_LIBRARY_PATH ${seaf_controller} --test \
          -c "${default_ccnet_conf_dir}" \
-         -d "${seafile_data_dir}" \
+         -d "${default_seafile_data_dir}" \
          -F "${central_config_dir}" ; then
         exit 1;
     fi
@@ -121,7 +115,7 @@ function start_seafile_server () {
     validate_already_running;
     validate_central_conf_dir;
     validate_ccnet_conf_dir;
-    read_seafile_data_dir;
+    validate_seafile_data_dir;
     validate_running_user;
     test_config;
 
@@ -130,7 +124,7 @@ function start_seafile_server () {
     mkdir -p $TOPDIR/logs
     LD_LIBRARY_PATH=$SEAFILE_LD_LIBRARY_PATH ${seaf_controller} \
                    -c "${default_ccnet_conf_dir}" \
-                   -d "${seafile_data_dir}" \
+                   -d "${default_seafile_data_dir}" \
                    -F "${central_config_dir}"
 
     sleep 3
diff --git a/scripts/seahub.sh b/scripts/seahub.sh
index 6a9ae9e..c53e527 100755
--- a/scripts/seahub.sh
+++ b/scripts/seahub.sh
@@ -16,6 +16,7 @@ SCRIPT=$(readlink -f "$0")
 INSTALLPATH=$(dirname "${SCRIPT}")
 TOPDIR=$(dirname "${INSTALLPATH}")
 default_ccnet_conf_dir=${TOPDIR}/ccnet
+default_seafile_data_dir=${TOPDIR}/seafile-data
 central_config_dir=${TOPDIR}/conf
 
 manage_py=${INSTALLPATH}/seahub/manage.py
@@ -80,16 +81,10 @@ function validate_ccnet_conf_dir () {
     fi
 }
 
-function read_seafile_data_dir () {
-    seafile_ini=${default_ccnet_conf_dir}/seafile.ini
-    if [[ ! -f ${seafile_ini} ]]; then
-        echo "${seafile_ini} not found. Now quit"
-        exit 1
-    fi
-    seafile_data_dir=$(cat "${seafile_ini}")
-    if [[ ! -d ${seafile_data_dir} ]]; then
-        echo "Your seafile server data directory \"${seafile_data_dir}\" is invalid or doesn't exits."
-        echo "Please check it first, or create this directory yourself."
+function validate_seafile_data_dir () {
+    if [[ ! -d ${default_seafile_data_dir} ]]; then
+        echo "Error: there is no seafile server data directory."
+        echo "Have you run setup-seafile.sh before this?"
         echo ""
         exit 1;
     fi
@@ -203,7 +198,7 @@ function start_seahub_fastcgi () {
 function prepare_env() {
     check_python_executable;
     validate_ccnet_conf_dir;
-    read_seafile_data_dir;
+    validate_seafile_data_dir;
 
     if [[ -z "$LANG" ]]; then
         echo "LANG is not set in ENV, set to en_US.UTF-8"
@@ -215,7 +210,7 @@ function prepare_env() {
     fi
 
     export CCNET_CONF_DIR=${default_ccnet_conf_dir}
-    export SEAFILE_CONF_DIR=${seafile_data_dir}
+    export SEAFILE_CONF_DIR=${default_seafile_data_dir}
     export SEAFILE_CENTRAL_CONF_DIR=${central_config_dir}
     export PYTHONPATH=${INSTALLPATH}/seafile/lib/python3.6/site-packages:${INSTALLPATH}/seafile/lib64/python3.6/site-packages:${INSTALLPATH}/seahub:${INSTALLPATH}/seahub/thirdpart:$PYTHONPATH
 
diff --git a/scripts/setup-seafile-mysql.py b/scripts/setup-seafile-mysql.py
index bd1e551..2814e8a 100644
--- a/scripts/setup-seafile-mysql.py
+++ b/scripts/setup-seafile-mysql.py
@@ -24,7 +24,7 @@ except ImportError:
     pass
 
 
-SERVER_MANUAL_HTTP = 'https://github.com/haiwen/seafile/wiki'
+SERVER_MANUAL_HTTP = 'https://download.seafile.com/published/seafile-manual/home.md'
 
 class Utils(object):
     '''Groups all helper functions here'''
@@ -376,6 +376,7 @@ class AbstractDBConfigurator(AbstractConfigurator):
         AbstractConfigurator.__init__(self)
         self.mysql_host = 'localhost'
         self.mysql_port = 3306
+        self.unix_socket = "/var/run/mysqld/mysqld.sock"
 
         self.use_existing_db = False
 
@@ -476,12 +477,15 @@ Please choose a way to initialize seafile databases:
 
         print('done')
 
-    def check_mysql_user(self, user, password, host=None):
+    def check_mysql_user(self, user, password, host=None, unix_socket=None):
         print('\nverifying password of user %s ... ' % user, end=' ')
-        kwargs = dict(host=host or self.mysql_host,
-                      port=self.mysql_port,
+        kwargs = dict(port=self.mysql_port,
                       user=user,
                       passwd=password)
+        if unix_socket:
+            kwargs['unix_socket'] = unix_socket
+        else:
+            kwargs['host'] = host or self.mysql_host
 
         try:
             conn = pymysql.connect(**kwargs)
@@ -565,7 +569,7 @@ class NewDBConfigurator(AbstractDBConfigurator):
             # accessed from localhost with unix socket. So we retry with
             # localhost when failing with 127.0.0.1.
             if self.mysql_host == '127.0.0.1':
-                self.root_conn = self.check_mysql_user('root', password, host='localhost')
+                self.root_conn = self.check_mysql_user('root', password, unix_socket=self.unix_socket)
             else:
                 raise
         return password
@@ -915,14 +919,14 @@ class CcnetConfigurator(AbstractConfigurator):
 class SeafileConfigurator(AbstractConfigurator):
     def __init__(self):
         AbstractConfigurator.__init__(self)
-        self.seafile_dir = None
+        self.seafile_dir = os.path.join(env_mgr.top_dir, 'seafile-data')
         self.port = 12001
         self.fileserver_port = None
         self.seafile_conf = os.path.join(env_mgr.central_config_dir, 'seafile.conf')
 
     def ask_questions(self):
-        if not self.seafile_dir:
-            self.ask_seafile_dir()
+        # if not self.seafile_dir:
+        #     self.ask_seafile_dir()
         # self.ask_port()
         if not self.fileserver_port:
             self.ask_fileserver_port()
@@ -942,7 +946,10 @@ class SeafileConfigurator(AbstractConfigurator):
 
         time.sleep(1)
         self.generate_db_conf()
-        self.write_seafile_ini()
+
+        ## use default seafile-data path: seafile_data_dir=${TOPDIR}/seafile-data
+        # self.write_seafile_ini()
+
         print('done')
 
     def generate_db_conf(self):
diff --git a/scripts/setup-seafile.sh b/scripts/setup-seafile.sh
index a00e327..ef4e803 100755
--- a/scripts/setup-seafile.sh
+++ b/scripts/setup-seafile.sh
@@ -12,10 +12,7 @@ default_logs_dir=${TOPDIR}/logs
 
 export SEAFILE_LD_LIBRARY_PATH=${INSTALLPATH}/seafile/lib/:${INSTALLPATH}/seafile/lib64:${LD_LIBRARY_PATH}
 
-use_existing_ccnet="false"
-use_existing_seafile="false"
-
-server_manual_http="https://github.com/haiwen/seafile/wiki"
+server_manual_http='https://download.seafile.com/published/seafile-manual/home.md'
 
 function welcome () {
     echo "-----------------------------------------------------------------"
@@ -72,20 +69,18 @@ function read_yes_no () {
 
 function check_existing_ccnet () {
     if [[ -d ${default_ccnet_conf_dir} ]]; then
-        echo "It seems that you have created a ccnet configuration before. "
-        echo "Would you like to use the existing configuration?"
+        echo "\033[31m Error: \033[0m Ccnet config dir \"${default_ccnet_conf_dir}\" already exists."
+        echo
+        exit 1;
+    fi
+    echo
+}
 
-        if ! read_yes_no; then
-            echo
-            echo "Please remove the existing configuration before continuing."
-            echo "You can do it by running \"rm -rf ${default_ccnet_conf_dir}\""
-            echo
-            exit 1;
-        else
-            echo
-            echo "Existing ccnet configuration is being used." 
-            use_existing_ccnet=true
-        fi
+function check_existing_seafile () {
+    if [[ -d ${default_seafile_data_dir} ]]; then
+        echo "\033[31m Error: \033[0m Seafile server data dir \"${default_seafile_data_dir}\" already exists."
+        echo
+        exit 1;
     fi
     echo
 }
@@ -201,37 +196,37 @@ function get_server_ip_or_domain () {
     echo
 }
 
-function get_ccnet_server_port () {
-    question="What tcp port do you want to use for ccnet server?" 
-    hint="10001 is the recommended port."
-    default="10001"
-    ask_question "${question}\n${hint}" "${default}"
-    read server_port
-    if [[ "${server_port}" == "" ]]; then
-        server_port="${default}"
-    fi
-    if [[ ! ${server_port} =~ ^[0-9]+$ ]]; then
-        echo "\"${server_port}\" is not a valid port number. "
-        get_ccnet_server_port
-    fi
-    echo
-}
+# function get_ccnet_server_port () {
+#     question="What tcp port do you want to use for ccnet server?" 
+#     hint="10001 is the recommended port."
+#     default="10001"
+#     ask_question "${question}\n${hint}" "${default}"
+#     read server_port
+#     if [[ "${server_port}" == "" ]]; then
+#         server_port="${default}"
+#     fi
+#     if [[ ! ${server_port} =~ ^[0-9]+$ ]]; then
+#         echo "\"${server_port}\" is not a valid port number. "
+#         get_ccnet_server_port
+#     fi
+#     echo
+# }
 
-function get_seafile_server_port () {
-    question="What tcp port would you like to use for seafile server?" 
-    hint="12001 is the recommended port."
-    default="12001"
-    ask_question "${question}\n${hint}" "${default}"
-    read seafile_server_port
-    if [[ "${seafile_server_port}" == "" ]]; then
-        seafile_server_port="${default}"
-    fi
-    if [[ ! ${seafile_server_port} =~ ^[0-9]+$ ]]; then
-        echo "\"${seafile_server_port}\" is not a valid port number. "
-        get_seafile_server_port
-    fi
-    echo
-}
+# function get_seafile_server_port () {
+#     question="What tcp port would you like to use for seafile server?" 
+#     hint="12001 is the recommended port."
+#     default="12001"
+#     ask_question "${question}\n${hint}" "${default}"
+#     read seafile_server_port
+#     if [[ "${seafile_server_port}" == "" ]]; then
+#         seafile_server_port="${default}"
+#     fi
+#     if [[ ! ${seafile_server_port} =~ ^[0-9]+$ ]]; then
+#         echo "\"${seafile_server_port}\" is not a valid port number. "
+#         get_seafile_server_port
+#     fi
+#     echo
+# }
 
 function get_fileserver_port () {
     question="What tcp port do you want to use for seafile fileserver?" 
@@ -250,45 +245,45 @@ function get_fileserver_port () {
 }
 
 
-function get_seafile_data_dir () {
-    question="Where would you like to store your seafile data?"
-    note="Please use a volume with enough free space." 
-    default=${default_seafile_data_dir}
-    ask_question "${question} \n\033[33mNote: \033[m${note}" "${default}"
-    read seafile_data_dir
-    if [[ "${seafile_data_dir}" == "" ]]; then
-        seafile_data_dir=${default}
-    fi
-
-    if [[ -d ${seafile_data_dir} && -f ${seafile_data_dir}/seafile.conf ]]; then
-        echo
-        echo "It seems that you have already existing seafile data in ${seafile_data_dir}."
-        echo "Would you like to use the existing seafile data?"
-        if ! read_yes_no; then
-            echo "You have chosen not to use existing seafile data in ${seafile_data_dir}"
-            echo "You need to specify a different seafile data directory or remove ${seafile_data_dir} before continuing."
-            get_seafile_data_dir
-        else
-            use_existing_seafile="true"
-        fi
-    elif [[ -d ${seafile_data_dir} && $(ls -A ${seafile_data_dir}) != "" ]]; then
-        echo 
-        echo "${seafile_data_dir} is an existing non-empty directory. Please specify a different directory"
-        echo 
-        get_seafile_data_dir
-    elif [[ ! ${seafile_data_dir} =~ ^/ ]]; then
-        echo 
-        echo "\"${seafile_data_dir}\" is not an absolute path. Please specify an absolute path."
-        echo 
-        get_seafile_data_dir
-    elif [[ ! -d $(dirname ${seafile_data_dir}) ]]; then
-        echo 
-        echo "The path $(dirname ${seafile_data_dir}) does not exist."
-        echo 
-        get_seafile_data_dir
-    fi
-    echo
-}
+# function get_seafile_data_dir () {
+#     question="Where would you like to store your seafile data?"
+#     note="Please use a volume with enough free space." 
+#     default=${default_seafile_data_dir}
+#     ask_question "${question} \n\033[33mNote: \033[m${note}" "${default}"
+#     read seafile_data_dir
+#     if [[ "${seafile_data_dir}" == "" ]]; then
+#         seafile_data_dir=${default}
+#     fi
+#
+#     if [[ -d ${seafile_data_dir} && -f ${seafile_data_dir}/seafile.conf ]]; then
+#         echo
+#         echo "It seems that you have already existing seafile data in ${seafile_data_dir}."
+#         echo "Would you like to use the existing seafile data?"
+#         if ! read_yes_no; then
+#             echo "You have chosen not to use existing seafile data in ${seafile_data_dir}"
+#             echo "You need to specify a different seafile data directory or remove ${seafile_data_dir} before continuing."
+#             get_seafile_data_dir
+#         else
+#             use_existing_seafile="true"
+#         fi
+#     elif [[ -d ${seafile_data_dir} && $(ls -A ${seafile_data_dir}) != "" ]]; then
+#         echo 
+#         echo "${seafile_data_dir} is an existing non-empty directory. Please specify a different directory"
+#         echo 
+#         get_seafile_data_dir
+#     elif [[ ! ${seafile_data_dir} =~ ^/ ]]; then
+#         echo 
+#         echo "\"${seafile_data_dir}\" is not an absolute path. Please specify an absolute path."
+#         echo 
+#         get_seafile_data_dir
+#     elif [[ ! -d $(dirname ${seafile_data_dir}) ]]; then
+#         echo 
+#         echo "The path $(dirname ${seafile_data_dir}) does not exist."
+#         echo 
+#         get_seafile_data_dir
+#     fi
+#     echo
+# }
 
 function gen_gunicorn_conf () {
     mkdir -p ${default_conf_dir}
@@ -336,13 +331,13 @@ fi
 
 function copy_user_manuals() {
     src_docs_dir=${INSTALLPATH}/seafile/docs/
-    library_template_dir=${seafile_data_dir}/library-template
+    library_template_dir=${default_seafile_data_dir}/library-template
     mkdir -p ${library_template_dir}
     cp -f ${src_docs_dir}/*.doc ${library_template_dir}
 }
 
 function parse_params() {
-    while getopts n:i:p:d arg; do
+    while getopts n:i:p arg; do
         case $arg in
             n)
                 server_name=${OPTARG}
@@ -353,9 +348,6 @@ function parse_params() {
             p)
                 fileserver_port=${OPTARG}
                 ;;
-            d)
-                seafile_data_dir=${OPTARG}
-                ;;
         esac
     done
 }
@@ -387,20 +379,6 @@ function validate_params() {
         echo "Invalid fileserver port param"
         err_and_quit;
     fi
-
-    if [[ "${seafile_data_dir}" == "" ]]; then
-        seafile_data_dir=${SEAFILE_DIR:-${default_seafile_data_dir}}
-    fi
-    if [[ -d ${seafile_data_dir} && $(ls -A ${seafile_data_dir}) != "" ]]; then
-        echo "${seafile_data_dir} is an existing non-empty directory. Please specify a different directory"
-        err_and_quit
-    elif [[ ! ${seafile_data_dir} =~ ^/ ]]; then
-        echo "\"${seafile_data_dir}\" is not an absolute path. Please specify an absolute path."
-        err_and_quit
-    elif [[ ! -d $(dirname ${seafile_data_dir}) ]]; then
-        echo "The path $(dirname ${seafile_data_dir}) does not exist."
-        err_and_quit
-    fi
 }
 
 function usage() {
@@ -444,43 +422,32 @@ check_system_dependency;
 sleep .5
 
 check_existing_ccnet;
-if [[ ${use_existing_ccnet} != "true" ]]; then
-    if [[ "${server_name}" == "" ]]; then
-        get_server_name;
-    fi
-    if [[ "${ip_or_domain}" == "" ]]; then
-        get_server_ip_or_domain;
-    fi
-    # get_ccnet_server_port;
+check_existing_seafile;
+
+if [[ "${server_name}" == "" ]]; then
+    get_server_name;
 fi
 
-if [[ "$seafile_data_dir" == "" ]]; then
-    get_seafile_data_dir;
+if [[ "${ip_or_domain}" == "" ]]; then
+    get_server_ip_or_domain;
 fi
-if [[ ${use_existing_seafile} != "true" ]]; then
-    # get_seafile_server_port
-    if [[ "$fileserver_port" == "" ]]; then
-        get_fileserver_port
-    fi
+
+if [[ "$fileserver_port" == "" ]]; then
+    get_fileserver_port
 fi
 
+
 sleep .5
 
 printf "\nThis is your config information:\n\n"
 
-if [[ ${use_existing_ccnet} != "true" ]]; then
-    printf "server name:        \033[33m${server_name}\033[m\n"
-    printf "server ip/domain:   \033[33m${ip_or_domain}\033[m\n"
-else
-    printf "ccnet config:       use existing config in  \033[33m${default_ccnet_conf_dir}\033[m\n"
-fi
+printf "server name:        \033[33m${server_name}\033[m\n"
+printf "server ip/domain:   \033[33m${ip_or_domain}\033[m\n"
+
+
+printf "seafile data dir:   \033[33m${default_seafile_data_dir}\033[m\n"
+printf "fileserver port:    \033[33m${fileserver_port}\033[m\n"
 
-if [[ ${use_existing_seafile} != "true" ]]; then
-    printf "seafile data dir:   \033[33m${seafile_data_dir}\033[m\n"
-    printf "fileserver port:    \033[33m${fileserver_port}\033[m\n"
-else
-    printf "seafile data dir:   use existing data in    \033[33m${seafile_data_dir}\033[m\n"
-fi
 
 if [[ "${need_pause}" == "1" ]]; then
     echo
@@ -494,44 +461,45 @@ seaf_server_init=${INSTALLPATH}/seafile/bin/seaf-server-init
 # -------------------------------------------
 # Create ccnet conf 
 # -------------------------------------------
-if [[ "${use_existing_ccnet}" != "true" ]]; then
-    echo "Generating ccnet configuration in ${default_ccnet_conf_dir}..."
-    echo
-    if ! LD_LIBRARY_PATH=$SEAFILE_LD_LIBRARY_PATH "${ccnet_init}" \
-         -F "${default_conf_dir}" \
-         -c "${default_ccnet_conf_dir}" \
-         --host "${ip_or_domain}"; then
-        err_and_quit;
-    fi
 
-    echo
+echo "Generating ccnet configuration in ${default_ccnet_conf_dir}..."
+echo
+if ! LD_LIBRARY_PATH=$SEAFILE_LD_LIBRARY_PATH "${ccnet_init}" \
+        -F "${default_conf_dir}" \
+        -c "${default_ccnet_conf_dir}" \
+        --host "${ip_or_domain}"; then
+    err_and_quit;
 fi
 
+echo
+
+
 sleep 0.5
 
 # -------------------------------------------
 # Create seafile conf
 # -------------------------------------------
-if [[ "${use_existing_seafile}" != "true" ]]; then
-    echo "Generating seafile configuration in ${seafile_data_dir} ..."
-    echo
-    if ! LD_LIBRARY_PATH=$SEAFILE_LD_LIBRARY_PATH ${seaf_server_init} \
-         --central-config-dir "${default_conf_dir}" \
-         --seafile-dir "${seafile_data_dir}" \
-         --fileserver-port ${fileserver_port}; then
-        
-        echo "Failed to generate seafile configuration"
-        err_and_quit;
-    fi
+
+echo "Generating seafile configuration in ${default_seafile_data_dir} ..."
+echo
+if ! LD_LIBRARY_PATH=$SEAFILE_LD_LIBRARY_PATH ${seaf_server_init} \
+        --central-config-dir "${default_conf_dir}" \
+        --seafile-dir "${default_seafile_data_dir}" \
+        --fileserver-port ${fileserver_port}; then
     
-    echo
+    echo "Failed to generate seafile configuration"
+    err_and_quit;
 fi
 
+echo
+
+
 # -------------------------------------------
 # Write seafile.ini
 # -------------------------------------------
 
-echo "${seafile_data_dir}" > "${default_ccnet_conf_dir}/seafile.ini"
+## use default seafile-data path: seafile_data_dir=${TOPDIR}/seafile-data
+# echo "${seafile_data_dir}" > "${default_ccnet_conf_dir}/seafile.ini"
 
 # -------------------------------------------
 # Generate gunicorn.conf
@@ -729,7 +697,7 @@ echo
 
 chmod 0600 "$dest_settings_py"
 chmod 0700 "$default_ccnet_conf_dir"
-chmod 0700 "$seafile_data_dir"
+chmod 0700 "$default_seafile_data_dir"
 chmod 0700 "$default_conf_dir"
 
 # -------------------------------------------