diff --git a/install/cobbler.sh b/install/cobbler.sh
index d971e75e..a93ec71e 100755
--- a/install/cobbler.sh
+++ b/install/cobbler.sh
@@ -241,11 +241,7 @@ libgt-0.3.11-1.${CENTOS_IMAGE_TYPE_OTHER}${CENTOS_IMAGE_VERSION_MAJOR}.${CENTOS_
 liblogging-1.0.4-1.${CENTOS_IMAGE_TYPE_OTHER}${CENTOS_IMAGE_VERSION_MAJOR}.${CENTOS_IMAGE_ARCH}.rpm
 rsyslog-7.6.3-1.${CENTOS_IMAGE_TYPE_OTHER}${CENTOS_IMAGE_VERSION_MAJOR}.${CENTOS_IMAGE_ARCH}.rpm"
 for f in $centos_ppa_repo_rsyslog_packages; do
-    if [ "$REGION" == "asia" ]; then
-        download http://mirrors.yun-idc.com/epel/${CENTOS_IMAGE_VERSION_MAJOR}/${CENTOS_IMAGE_ARCH}/$f $f copy /var/lib/cobbler/repo_mirror/centos_ppa_repo/ || exit $?
-    else
-        download http://rpms.adiscon.com/v7-stable/epel-${CENTOS_IMAGE_VERSION_MAJOR}/${CENTOS_IMAGE_ARCH}/RPMS/$f $f copy /var/lib/cobbler/repo_mirror/centos_ppa_repo/ || exit $?
-    fi
+    download http://rpms.adiscon.com/v7-stable/epel-${CENTOS_IMAGE_VERSION_MAJOR}/${CENTOS_IMAGE_ARCH}/RPMS/$f $f copy /var/lib/cobbler/repo_mirror/centos_ppa_repo/ || exit $?
 done
 
 # download chef client for centos ppa repo
diff --git a/install/install.conf b/install/install.conf
index f28844af..f7003f0e 100755
--- a/install/install.conf
+++ b/install/install.conf
@@ -58,7 +58,7 @@ export UBUNTU_IMAGE_NAME=${UBUNTU_IMAGE_NAME:-"${UBUNTU_IMAGE_TYPE}-${UBUNTU_IMA
 export UBUNTU_IMAGE_ARCH=${UBUNTU_IMAGE_ARCH:-"x86_64"}
 export UBUNTU_IMAGE_ARCH_OTHER=${UBUNTU_IMAGE_ARCH_OTHER:-"amd64"}
 export UBUNTU_IMAGE_SOURCE=${UBUNTU_IMAGE_SOURCE:-"http://releases.ubuntu.com/${UBUNTU_IMAGE_VERSION}/${UBUNTU_IMAGE_TYPE,,}-${UBUNTU_IMAGE_VERSION}${UBUNTU_IMAGE_PATCH_VERSION}-server-${UBUNTU_IMAGE_ARCH_OTHER}.iso"}
-export UBUNTU_IMAGE_SOURCE_ASIA=${UBUNTU_IMAGE_SOURCE:-"http://mirros.ustc.edu.cn/ubuntu-releases/${UBUNTU_IMAGE_VERSION}/${UBUNTU_IMAGE_TYPE,,}-${UBUNTU_IMAGE_VERSION}${UBUNTU_IMAGE_PATCH_VERSION}-server-${UBUNTU_IMAGE_ARCH_OTHER}.iso"}
+export UBUNTU_IMAGE_SOURCE_ASIA=${UBUNTU_IMAGE_SOURCE_ASIA:-"http://mirros.ustc.edu.cn/ubuntu-releases/${UBUNTU_IMAGE_VERSION}/${UBUNTU_IMAGE_TYPE,,}-${UBUNTU_IMAGE_VERSION}${UBUNTU_IMAGE_PATCH_VERSION}-server-${UBUNTU_IMAGE_ARCH_OTHER}.iso"}
 
 export COBBLER_PASSWORD=${COBBLER_PASSWORD:-"cobbler"}
 
diff --git a/install/prepare.sh b/install/prepare.sh
index e69fabdd..8526bd45 100755
--- a/install/prepare.sh
+++ b/install/prepare.sh
@@ -221,7 +221,7 @@ yum-plugin-priorities-1.1.30-14.${CENTOS_IMAGE_TYPE_OTHER}${CENTOS_IMAGE_VERSION
 
 for f in $centos_ppa_repo_packages; do
     if [ "$REGION" == "asia" ]; then
-        download http://mirrors.yun-idc.com/${CENTOS_IMAGE_TYPE,,}/${CENTOS_IMAGE_VERSION}/os/${CENTOS_IMAGE_ARCH}/Packages/$f $f copy /var/lib/cobbler/repo_mirror/centos_ppa_repo/ || exit $?
+        download http://mirrors.yun-idc.com/${CENTOS_IMAGE_TYPE,,}/${CENTOS_IMAGE_VERSION}/os/${CENTOS_IMAGE_ARCH}/Packages/$f $f || exit $?
     else
         download http://rpmfind.net/linux/${CENTOS_IMAGE_TYPE,,}/${CENTOS_IMAGE_VERSION}/os/${CENTOS_IMAGE_ARCH}/Packages/$f $f || exit $?
     fi
@@ -235,11 +235,7 @@ liblogging-1.0.4-1.${CENTOS_IMAGE_TYPE_OTHER}${CENTOS_IMAGE_VERSION_MAJOR}.${CEN
 rsyslog-7.6.3-1.${CENTOS_IMAGE_TYPE_OTHER}${CENTOS_IMAGE_VERSION_MAJOR}.${CENTOS_IMAGE_ARCH}.rpm"
 
 for f in $centos_ppa_repo_rsyslog_packages; do
-    if [ "$REGION" == "asia" ]; then
-        download http://mirrors.yun-idc.com/epel/${CENTOS_IMAGE_VERSION_MAJOR}/${CENTOS_IMAGE_ARCH}/$f $f copy /var/lib/cobbler/repo_mirror/centos_ppa_repo/ || exit $?
-    else 
-        download http://rpms.adiscon.com/v7-stable/epel-${CENTOS_IMAGE_VERSION_MAJOR}/${CENTOS_IMAGE_ARCH}/RPMS/$f $f || exit $?
-    fi
+    download http://rpms.adiscon.com/v7-stable/epel-${CENTOS_IMAGE_VERSION_MAJOR}/${CENTOS_IMAGE_ARCH}/RPMS/$f $f || exit $?
 done
 
 download $CHEF_CLIENT `basename $CHEF_CLIENT` || exit $?
@@ -259,7 +255,9 @@ else
 fi
 
 # download local repo
-download -f https://s3-us-west-1.amazonaws.com/compass-local-repo/local_repo.tar.gz local_repo.tar.gz || exit $?
+if [[ $LOCAL_REPO = "y" ]]; then
+    download -f https://s3-us-west-1.amazonaws.com/compass-local-repo/local_repo.tar.gz local_repo.tar.gz || exit $?
+fi
 
 # Install net-snmp
 echo "install snmp config"
diff --git a/install/setup_env.sh b/install/setup_env.sh
index caeef747..ec3c59b7 100755
--- a/install/setup_env.sh
+++ b/install/setup_env.sh
@@ -10,6 +10,6 @@ NEXTSERVER=\${NEXTSERVER:-$NEXTSERVER}
 IP_START=\${IP_START:-$IP_START}
 IP_END=\${IP_END:-$IP_END}
 LOCAL_REPO=\${LOCAL_REPO:-$LOCAL_REPO}
-REGION=\$(REGION:-$REGION}
+REGION=\${REGION:-$REGION}
 EOF
 chmod ugo+x $SCRIPT_DIR/env.conf