diff --git a/dist/aliyuncs-install.sh b/dist/aliyuncs-install.sh
index 6c44bdc25c83c523dc34a1d3489548a0b4f324a0..b0d7275cf9999ffda87570bf312671adcc5832f7 100755
--- a/dist/aliyuncs-install.sh
+++ b/dist/aliyuncs-install.sh
@@ -1,117 +1,197 @@
 #!/usr/bin/env bash
 
-export MIRROR_SITE="http://mirrors.cloud.aliyuncs.com"
-status_code=$(curl --write-out %{http_code} $MIRROR_SITE/anolis/migration/install.sh -o /tmp/install.sh)
-[ "$status_code" -eq 200 ] || {
-  echo "failed to get install.sh"
-  exit 1
+[ "$EUID" -eq 0 ] || {
+    echo "Please run this script as a root user"
+    exit 1
 }
-bash /tmp/install.sh $@
-exit_code=$?
-[ "$exit_code" -eq 0 ] || exit $exit_code
-
-# workaround for aliyun ecs epel setup
-[ -f /etc/yum.repos.d/epel.repo ] && yum install -y epel-release && mkdir -p /etc/yum.repos.d/bak && mv /etc/yum.repos.d/epel* /etc/yum.repos.d/bak/
 
-if [ x"$1" = "x7to8" ]
-then
-    echo 'epel-release' >> /etc/leapp/transaction/to_remove
-    echo 'anolis-release' >> /etc/leapp/transaction/to_remove
-    echo 'epel-aliyuncs-release' >> /etc/leapp/transaction/to_install
-    echo 'anolis-release-aliyuncs' >> /etc/leapp/transaction/to_install
-
-    cat << EOF > /etc/leapp/files/leapp_upgrade_repositories.repo
-[anolis_baseos]
-name=anolis baseos
-baseurl=http://mirrors.cloud.aliyuncs.com/anolis/8/BaseOS/\$basearch/os
-exclude=anolis-release
-gpgcheck=0
+export MIRROR_SITE="http://mirrors.cloud.aliyuncs.com"
+mirror_site="${MIRROR_SITE:-https://mirrors.openanolis.cn}"
 
-[anolis_appstream]
-name=anolis appstream
-baseurl=http://mirrors.cloud.aliyuncs.com/anolis/8/AppStream/\$basearch/os
-gpgcheck=0
+report_error_in_jsonfile() {
+    unixtime=$(date +%s)
+    errMsg_inline=$(echo -e "$3" | tr -d '\n\r\t"\\')
+    printf '{"Timestamp":%s,"ProgressInfo":"%s","Progress":0,"ErrorCode":%s,"ErrorMsg":"%s"}' "$unixtime" "$1" "$2" "${errMsg_inline: -1900}" > "$jsonfile"
+}
 
-[anolis_powertools]
-name=anolis powertools
-baseurl=http://mirrors.cloud.aliyuncs.com/anolis/8/PowerTools/\$basearch/os
-gpgcheck=0
+check_if_centos_or_rhel() {
+    [ -f /etc/centos-release ] && return 0
+    [ -f /etc/redhat-release ] && return 0
+    echo "CANNOT find /etc/centos-release or /etc/redhat-release, WONT install migration tool"
+    out=$(cat /etc/system-release)
+    report_error_in_jsonfile "unsupported version" 103 "$out"
+    exit 1
+}
 
-[anolis_highavailability]
-name=anolis highavailability
-baseurl=http://mirrors.cloud.aliyuncs.com/anolis/8/HighAvailability/\$basearch/os
-gpgcheck=0
+disable_migration_repo() {
+    sed -i "s/enabled=1/enabled=0/" /etc/yum.repos.d/anolis-migration.repo
+}
 
-[anolis_plus]
-name=anolis plus
-baseurl=http://mirrors.cloud.aliyuncs.com/anolis/8/Plus/\$basearch/os
-gpgcheck=0
-enabled=1
+disable_yum_exclude() {
+    sed -i '/exclude=/ s/^/#/' /etc/yum.conf
+}
 
-[anolis_extras]
-name=anolis extras
-baseurl=http://mirrors.cloud.aliyuncs.com/anolis/8/Extras/\$basearch/os
+# config epel
+epel_repo_config() {
+    rpm -q epel-release || rpm -q epel-aliyuncs-release && [ -f /etc/yum.repos.d/epel.repo ] && return 0
+    # maybe using filename epel-7.repo since this guide https://developer.aliyun.com/mirror/epel
+    rpm -q epel-release || rpm -q epel-aliyuncs-release && [ -f /etc/yum.repos.d/epel-7.repo ] && return 0
+    rpm -q epel-release || rpm -q epel-aliyuncs-release && [ -f /etc/yum.repos.d/CentOS-Linux-epel.repo ] && return 0
+
+    if rpm -q epel-release || rpm -q epel-aliyuncs-release 
+    then
+        :
+    else
+        out=$(yum install -y epel-release 2>&1)
+    fi
+    exit_code=$?
+    if [ "$exit_code" -ne 0 ]
+    then
+        echo "failed to install epel-release"
+        out+="\n$(ls /etc/yum.repos.d)"
+        out+="\n$(cat /etc/yum.conf|grep '='|grep -v '#')"
+        report_error_in_jsonfile "install epel-release" 103 "$out"
+        exit 1
+    fi
+
+    # set better mirror site
+    sed -i 's|^enabled=1|enabled=0|' /etc/yum.repos.d/*epel*
+    major_release=$(cat /etc/os-release |grep -w VERSION_ID | sed 's/.*"\(.*\)".*/\1/g' | awk -F'.' '{print $1}')
+    if [ "$major_release" -eq 7 ] || [ "$major_release" -eq 2 ]
+    then
+        cat << EOF > /etc/yum.repos.d/epel.repo
+[epel]
+name=Extra Packages for Enterprise Linux 7 - \$basearch
+baseurl=https://mirrors.aliyun.com/epel/7/\$basearch
+        http://mirrors.cloud.aliyuncs.com/epel/7/\$basearch
+failovermethod=priority
 enabled=1
 gpgcheck=0
-
-[anolis_baseos-debug]
-name=anolis baseos debug
-baseurl=http://mirrors.cloud.aliyuncs.com/anolis/8/BaseOS/\$basearch/debug
-gpgcheck=0
-enabled=0
-
-[anolis_appstream-debug]
-name=anolis appstream debug
-baseurl=http://mirrors.cloud.aliyuncs.com/anolis/8/AppStream/\$basearch/debug
-gpgcheck=0
-enabled=0
-
-[anolis_powertools-debug]
-name=anolis powertools debug
-baseurl=http://mirrors.cloud.aliyuncs.com/anolis/8/PowerTools/\$basearch/debug
+EOF
+    elif [ "$major_release" -eq 8 ]
+    then
+        cat << EOF > /etc/yum.repos.d/epel.repo
+[epel]
+name=Extra Packages for Enterprise Linux 8 - \$basearch
+baseurl=https://mirrors.aliyun.com/epel/8/Everything/\$basearch
+        http://mirrors.cloud.aliyuncs.com/epel/8/Everything/\$basearch
+failovermethod=priority
+enabled=1
 gpgcheck=0
-enabled=0
+EOF
+    else    
+        echo "failed to get os major release"
+        out=$(cat /etc/os-release)
+        report_error_in_jsonfile "get major release error" 103 "$out"
+        exit 1
+    fi
+}
 
-[anolis_highavailability-debug]
-name=anolis highavailability debug
-baseurl=http://mirrors.cloud.aliyuncs.com/anolis/8/HighAvailability/\$basearch/debug
-gpgcheck=0
-enabled=0
+# config anolis migration repo
+migration_repo_config() {
+    yum clean all
+    rm -rf /etc/yum.repos.d/alinux-migration.repo /etc/yum.repos.d/anolis-migration.repo
+    curl "$mirror_site/anolis/migration/anolis-migration.repo" -o /etc/yum.repos.d/anolis-migration.repo || {
+        echo "failed to get migration repo"
+        out=$(cat /etc/system-release)
+	    report_error_in_jsonfile "get migration repo" 103 "$out"
+        exit 1
+    }
+    sed -i "s|https://mirrors.openanolis.cn|$mirror_site|"  /etc/yum.repos.d/anolis-migration.repo
+}
 
-[anolis_plus-debug]
-name=anolis plus debug
-baseurl=http://mirrors.cloud.aliyuncs.com/anolis/8/Plus/\$basearch/debug
-gpgcheck=0
-enabled=0
+install_7to7() {
+    out=$(yum -y install centos2anolis-*.an7.noarch --enablerepo=migration 2>&1)
+    exit_code=$?
+    if [ "$exit_code" -ne 0 ]
+    then
+        echo "failed to install centos7toanolis7"
+        out+="\n$(ls /etc/yum.repos.d)"
+        out+="\n$(cat /etc/yum.conf|grep '='|grep -v '#')"
+        report_error_in_jsonfile "install centos7toanolis7" 103 "$out"
+        exit 1
+    fi
+    disable_migration_repo
+}
 
-[anolis_extras-debug]
-name=anolis extras debug
-baseurl=http://mirrors.cloud.aliyuncs.com/anolis/8/Extras/\$basearch/debug
-enabled=0
-gpgcheck=0
+install_8to8() {
+    out=$(yum -y install centos2anolis-*.an8.noarch --enablerepo=migration 2>&1)
+    exit_code=$?
+    if [ "$exit_code" -ne 0 ]
+    then
+        echo "failed to install centos8toanolis8"
+        out+="\n$(ls /etc/yum.repos.d)"
+        out+="\n$(cat /etc/yum.conf|grep '='|grep -v '#')"
+        report_error_in_jsonfile "install centos8toanolis8" 103 "$out"
+        exit 1
+    fi
+    disable_migration_repo
+}
 
-[nodesource-migrate]
-name=Node.js Packages for Enterprise Linux 8 - \$basearch
-baseurl=https://rpm.nodesource.com/pub_18.x/el/8/\$basearch
-module_hotfixes=true
-failovermethod=priority
-enabled=0
-gpgcheck=0
-gpgkey=file:///etc/pki/rpm-gpg/NODESOURCE-GPG-SIGNING-KEY-EL
+install_7to8() {
+    sed -i 's|$releasever|7|g' /etc/yum.repos.d/anolis-migration.repo
+    yum install -y python-pip
+    yum remove -y python-requests python-urllib3
+    /usr/bin/pip2 uninstall requests urllib3 -y 2>/dev/null
+    out=$(yum -y install leapp --enablerepo=migration 2>&1)
+    exit_code=$?
+    if [ "$exit_code" -ne 0 ]
+    then
+        echo "failed to install leapp"
+        out+="\n$(ls /etc/yum.repos.d)"
+        out+="\n$(cat /etc/yum.conf|grep '='|grep -v '#')"
+        # out+="\n$(cat /etc/yum.conf | grep exclude )"
+        report_error_in_jsonfile "install leapp" 103 "$out"
+        exit 1
+    fi
+    disable_migration_repo
+    
+    echo 'epel-release' >> /etc/leapp/transaction/to_remove
+    echo 'anolis-release' >> /etc/leapp/transaction/to_remove
+    echo 'epel-aliyuncs-release' >> /etc/leapp/transaction/to_install
+    echo 'anolis-release-aliyuncs' >> /etc/leapp/transaction/to_install
 
-[zabbix-migrate]
-name=Zabbix Official Repository - \$basearch
-baseurl=http://repo.zabbix.com/zabbix/5.0/rhel/8/\$basearch/
-enabled=0
-gpgcheck=0
-gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-ZABBIX-A14FE591
+    sed -i "s|https://mirrors.openanolis.cn|$mirror_site|" /etc/leapp/files/leapp_upgrade_repositories.repo
+    sed -i "/BaseOS\/\$basearch\/os/a exclude=anolis-release" /etc/leapp/files/leapp_upgrade_repositories.repo
+    cat << EOF >> /etc/leapp/files/leapp_upgrade_repositories.repo
 
 [migration-aliyuncs]
 name=Anolis OS - migration repo
 baseurl=http://mirrors.cloud.aliyuncs.com/anolis/migration/8/\$basearch/os/
-gpgcheck=1
-gpgkey=http://mirrors.cloud.aliyuncs.com/anolis/RPM-GPG-KEY-ANOLIS
 failovermethod=priority
 enabled=1
+gpgcheck=1
+gpgkey=http://mirrors.cloud.aliyuncs.com/anolis/RPM-GPG-KEY-ANOLIS
 EOF
-fi
+}
+
+main() {
+    [ x"$1" = "x7to7" ] || [ x"$1" = "x7to8" ] || [ x"$1" = "x8to8" ] || {
+        echo "please run command: $0 7to7, $0 8to8, or $0 7to8"
+        exit 1 
+    }
+    case $1 in
+        7to7) jsonfile="/var/log/centostoanolis.json";rm -rf $jsonfile;;
+        8to8) jsonfile="/var/log/centostoanolis.json";rm -rf $jsonfile;;
+        7to8) jsonfile="/var/tmp/state.json";rm -rf $jsonfile;;
+    esac
+    check_if_centos_or_rhel
+    disable_yum_exclude
+    epel_repo_config
+    migration_repo_config
+    case $1 in
+        7to7) install_7to7;;
+        8to8) install_8to8;;
+        7to8) install_7to8;;
+    esac
+}
+
+
+main $@
+exit_code=$?
+[ "$exit_code" -eq 0 ] || exit $exit_code
+
+# workaround for aliyun ecs epel setup
+mkdir -p /etc/yum.repos.d/bak && mv /etc/yum.repos.d/*epel* /etc/yum.repos.d/bak/
+
+