diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 3dfeeb56..78030ab2 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -77,6 +77,7 @@ jobs:
           # Copy files
           echo "Copying files"
           sed 's/^ARPL_VERSION=.*/ARPL_VERSION="'${VERSION}'"/' -i files/board/arpl/overlayfs/opt/arpl/include/consts.sh
+          echo "${VERSION}" > files/board/arpl/p1/ARPL-VERSION
           cp -Ru files/* .buildroot/
           cd .buildroot
           echo "Generating default config"
diff --git a/VERSION b/VERSION
index e60bb9e8..0deec97f 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-1.0-beta7
+1.0-beta8
diff --git a/files/board/arpl/overlayfs/opt/arpl/include/consts.sh b/files/board/arpl/overlayfs/opt/arpl/include/consts.sh
index 09677e80..003bdf05 100644
--- a/files/board/arpl/overlayfs/opt/arpl/include/consts.sh
+++ b/files/board/arpl/overlayfs/opt/arpl/include/consts.sh
@@ -1,5 +1,5 @@
 
-ARPL_VERSION="1.0-beta7"
+ARPL_VERSION="1.0-beta8"
 
 # Define paths
 TMP_PATH="/tmp"
diff --git a/files/board/arpl/overlayfs/opt/arpl/include/functions.sh b/files/board/arpl/overlayfs/opt/arpl/include/functions.sh
index 9b7b3d5d..d9bd5d29 100644
--- a/files/board/arpl/overlayfs/opt/arpl/include/functions.sh
+++ b/files/board/arpl/overlayfs/opt/arpl/include/functions.sh
@@ -147,6 +147,14 @@ function arrayExistItem() {
   return ${EXISTS}
 }
 
+###############################################################################
+# Get values in .conf K=V file
+# 1 - key
+# 2 - file
+function _get_conf_kv() {
+  grep "${1}" "${2}" | sed "s|^${1}=\"\(.*\)\"$|\1|g"
+}
+
 ###############################################################################
 # Replace/remove/add values in .conf K=V file
 # 1 - name
@@ -168,3 +176,18 @@ function _set_conf_kv() {
   # Add if doesn't exist
   echo "$1=\"$2\"" >> $3
 }
+
+###############################################################################
+# Find and mount the DSM root filesystem
+# (based on pocopico's TCRP code)
+function findAndMountDSMRoot() {
+  [ $(mount | grep -i "${DSMROOT_PATH}" | wc -l) -gt 0 ] && return 0
+  dsmrootdisk="$(blkid /dev/sd* | grep -i raid | awk '{print $1 " " $4}' | grep UUID | grep sd[a-z]1 | head -1 | awk -F ":" '{print $1}')"
+  [ -z "${dsmrootdisk}" ] && return -1
+  [ $(mount | grep -i "${DSMROOT_PATH}" | wc -l) -eq 0 ] && mount -t ext4 $dsmrootdisk "${DSMROOT_PATH}"
+  if [ $(mount | grep -i "${DSMROOT_PATH}" | wc -l) -eq 0 ]; then
+    echo "Failed to mount"
+    return -1
+  fi
+  return 0
+}
diff --git a/files/board/arpl/overlayfs/opt/arpl/init.sh b/files/board/arpl/overlayfs/opt/arpl/init.sh
index b2703e26..8853c5ef 100755
--- a/files/board/arpl/overlayfs/opt/arpl/init.sh
+++ b/files/board/arpl/overlayfs/opt/arpl/init.sh
@@ -37,6 +37,7 @@ fsck.ext2 -p ${LOADER_DISK}3 >/dev/null 2>&1 || true
 mkdir -p ${BOOTLOADER_PATH}
 mkdir -p ${SLPART_PATH}
 mkdir -p ${CACHE_PATH}
+mkdir -p ${DSMROOT_PATH}
 # Mount the partitions
 mount ${LOADER_DISK}1 ${BOOTLOADER_PATH} || die "Can't mount ${BOOTLOADER_PATH}"
 mount ${LOADER_DISK}2 ${SLPART_PATH}     || die "Can't mount ${SLPART_PATH}"
diff --git a/files/board/arpl/overlayfs/opt/arpl/menu.sh b/files/board/arpl/overlayfs/opt/arpl/menu.sh
index 2a9d4767..523d386e 100755
--- a/files/board/arpl/overlayfs/opt/arpl/menu.sh
+++ b/files/board/arpl/overlayfs/opt/arpl/menu.sh
@@ -61,74 +61,83 @@ function backtitle() {
 ###############################################################################
 # Shows available models to user choose one
 function modelMenu() {
-  RESTRICT=1
-  FLGBETA=0
-  dialog --backtitle "`backtitle`" --title "Model" --aspect 18 \
-    --infobox "Reading models" 0 0
-  while true; do
-    echo "" > "${TMP_PATH}/menu"
-    FLGNEX=0
-    while read M; do
-      M="`basename ${M}`"
-      M="${M::-4}"
-      PLATFORM=`readModelKey "${M}" "platform"`
-      DT="`readModelKey "${M}" "dt"`"
-      BETA="`readModelKey "${M}" "beta"`"
-      [ "${BETA}" = "true" -a ${FLGBETA} -eq 0 ] && continue
-      # Check id model is compatible with CPU
-      COMPATIBLE=1
-      if [ ${RESTRICT} -eq 1 ]; then
-        for F in `readModelArray "${M}" "flags"`; do
-          if ! grep -q "^flags.*${F}.*" /proc/cpuinfo; then
-            COMPATIBLE=0
-            FLGNEX=1
-            break
-          fi
-        done
+  if [ -z "${1}" ]; then
+    RESTRICT=1
+    FLGBETA=0
+    dialog --backtitle "`backtitle`" --title "Model" --aspect 18 \
+      --infobox "Reading models" 0 0
+    while true; do
+      echo "" > "${TMP_PATH}/menu"
+      FLGNEX=0
+      while read M; do
+        M="`basename ${M}`"
+        M="${M::-4}"
+        PLATFORM=`readModelKey "${M}" "platform"`
+        DT="`readModelKey "${M}" "dt"`"
+        BETA="`readModelKey "${M}" "beta"`"
+        [ "${BETA}" = "true" -a ${FLGBETA} -eq 0 ] && continue
+        # Check id model is compatible with CPU
+        COMPATIBLE=1
+        if [ ${RESTRICT} -eq 1 ]; then
+          for F in `readModelArray "${M}" "flags"`; do
+            if ! grep -q "^flags.*${F}.*" /proc/cpuinfo; then
+              COMPATIBLE=0
+              FLGNEX=1
+              break
+            fi
+          done
+        fi
+        [ "${DT}" = "true" ] && DT="-DT" || DT=""
+        [ ${COMPATIBLE} -eq 1 ] && echo "${M} \"\Zb${PLATFORM}${DT}\Zn\" " >> "${TMP_PATH}/menu"
+      done < <(find "${MODEL_CONFIG_PATH}" -maxdepth 1 -name \*.yml | sort)
+      [ ${FLGNEX} -eq 1 ] && echo "f \"\Z1Disable flags restriction\Zn\"" >> "${TMP_PATH}/menu"
+      [ ${FLGBETA} -eq 0 ] && echo "b \"\Z1Show beta models\Zn\"" >> "${TMP_PATH}/menu"
+      dialog --backtitle "`backtitle`" --colors --menu "Choose the model" 0 0 0 \
+        --file "${TMP_PATH}/menu" 2>${TMP_PATH}/resp
+      [ $? -ne 0 ] && return
+      resp=$(<${TMP_PATH}/resp)
+      [ -z "${resp}" ] && return
+      if [ "${resp}" = "f" ]; then
+        RESTRICT=0
+        continue
       fi
-      [ "${DT}" = "true" ] && DT="-DT" || DT=""
-      [ ${COMPATIBLE} -eq 1 ] && echo "${M} \"\Zb${PLATFORM}${DT}\Zn\" " >> "${TMP_PATH}/menu"
-    done < <(find "${MODEL_CONFIG_PATH}" -maxdepth 1 -name \*.yml | sort)
-    [ ${FLGNEX} -eq 1 ] && echo "f \"\Z1Disable flags restriction\Zn\"" >> "${TMP_PATH}/menu"
-    [ ${FLGBETA} -eq 0 ] && echo "b \"\Z1Show beta models\Zn\"" >> "${TMP_PATH}/menu"
-    dialog --backtitle "`backtitle`" --colors --menu "Choose the model" 0 0 0 \
-      --file "${TMP_PATH}/menu" 2>${TMP_PATH}/resp
-    [ $? -ne 0 ] && return
-    resp=$(<${TMP_PATH}/resp)
-    [ -z "${resp}" ] && return
-    if [ "${resp}" = "f" ]; then
-      RESTRICT=0
-      continue
-    fi
-    if [ "${resp}" = "b" ]; then
-      FLGBETA=1
-      continue
-    fi
-    # If user change model, clean buildnumber and S/N
-    if [ "${MODEL}" != "${resp}" ]; then
-      MODEL=${resp}
-      writeConfigKey "model" "${MODEL}" "${USER_CONFIG_FILE}"
-      BUILD=""
-      writeConfigKey "build" "${BUILD}" "${USER_CONFIG_FILE}"
-      SN=""
-      writeConfigKey "sn" "${SN}" "${USER_CONFIG_FILE}"
-      # Delete old files
-      rm -f "${ORI_ZIMAGE_FILE}" "${ORI_RDGZ_FILE}" "${MOD_ZIMAGE_FILE}" "${MOD_RDGZ_FILE}"
-      DIRTY=1
-    fi
-    break
-  done
+      if [ "${resp}" = "b" ]; then
+        FLGBETA=1
+        continue
+      fi
+      break
+    done
+  else
+    resp="${1}"
+  fi
+  # If user change model, clean buildnumber and S/N
+  if [ "${MODEL}" != "${resp}" ]; then
+    MODEL=${resp}
+    writeConfigKey "model" "${MODEL}" "${USER_CONFIG_FILE}"
+    BUILD=""
+    writeConfigKey "build" "${BUILD}" "${USER_CONFIG_FILE}"
+    SN=""
+    writeConfigKey "sn" "${SN}" "${USER_CONFIG_FILE}"
+    # Delete old files
+    rm -f "${ORI_ZIMAGE_FILE}" "${ORI_RDGZ_FILE}" "${MOD_ZIMAGE_FILE}" "${MOD_RDGZ_FILE}"
+    DIRTY=1
+  fi
 }
 
 ###############################################################################
 # Shows available buildnumbers from a model to user choose one
 function buildMenu() {
   ITEMS="`readConfigEntriesArray "builds" "${MODEL_CONFIG_PATH}/${MODEL}.yml" | sort -r`"
-  dialog --clear --no-items --backtitle "`backtitle`" \
-    --menu "Choose a build number" 0 0 0 ${ITEMS} 2>${TMP_PATH}/resp
-  [ $? -ne 0 ] && return
-  resp=$(<${TMP_PATH}/resp)
-  [ -z "${resp}" ] && return
+  if [ -z "${1}" ]; then
+    dialog --clear --no-items --backtitle "`backtitle`" \
+      --menu "Choose a build number" 0 0 0 ${ITEMS} 2>${TMP_PATH}/resp
+    [ $? -ne 0 ] && return
+    resp=$(<${TMP_PATH}/resp)
+    [ -z "${resp}" ] && return
+  else
+    if ! arrayExistItem "${1}" ${ITEMS}; then return; fi
+    resp="${1}"
+  fi
   if [ "${BUILD}" != "${resp}" ]; then
     dialog --backtitle "`backtitle`" --title "Build Number" \
       --infobox "Reconfiguring Synoinfo, Addons and Modules" 0 0
@@ -753,6 +762,7 @@ function advancedMenu() {
       echo "r \"Switch direct boot: \Z4${DIRECTBOOT}\Zn\"" >> "${TMP_PATH}/menu"
     fi
     echo "u \"Edit user config file manually\""            >> "${TMP_PATH}/menu"
+    echo "t \"Try to recovery a DSM installed system\""    >> "${TMP_PATH}/menu"
     echo "e \"Exit\""                                      >> "${TMP_PATH}/menu"
 
     dialog --default-item ${NEXT} --backtitle "`backtitle`" --title "Advanced" \
@@ -771,11 +781,55 @@ function advancedMenu() {
         NEXT="u"
         ;;
       u) editUserConfig; NEXT="e" ;;
+      t) tryRecoveryDSM ;;
       e) break ;;
     esac
   done
 }
 
+###############################################################################
+# Try to recovery a DSM already installed
+function tryRecoveryDSM() {
+  dialog --backtitle "`backtitle`" --title "Try recovery DSM" --aspect 18 \
+    --infobox "Trying to recovery a DSM installed system" 0 0
+  if findAndMountDSMRoot; then
+    MODEL=""
+    BUILD=""
+    if [ -f "${DSMROOT_PATH}/.syno/patch/VERSION" ]; then
+      eval `cat ${DSMROOT_PATH}/.syno/patch/VERSION | grep unique`
+      eval `cat ${DSMROOT_PATH}/.syno/patch/VERSION | grep base`
+      if [ -n "${unique}" ] ; then
+        while read F; do
+          M="`basename ${F}`"
+          M="${M::-4}"
+          UNIQUE=`readModelKey "${M}" "unique"`
+          [ "${unique}" = "${UNIQUE}" ] || continue
+          # Found
+          modelMenu "${M}"
+        done < <(find "${MODEL_CONFIG_PATH}" -maxdepth 1 -name \*.yml | sort)
+        if [ -n "${MODEL}" ]; then
+          buildMenu ${base}
+          if [ -n "${BUILD}" ]; then
+            cp "${DSMROOT_PATH}/.syno/patch/zImage" "${SLPART_PATH}"
+            cp "${DSMROOT_PATH}/.syno/patch/rd.gz" "${SLPART_PATH}"
+            MSG="Found a installation:\nModel: ${MODEL}\nBuildnumber: ${BUILD}"
+            SN=`_get_conf_kv SN "${DSMROOT_PATH}/etc/synoinfo.conf"`
+            if [ -n "${SN}" ]; then
+              writeConfigKey "sn" "${SN}" "${USER_CONFIG_FILE}"
+              MSG+="\nSerial: ${SN}"
+            fi
+            dialog --backtitle "`backtitle`" --title "Try recovery DSM" \
+              --aspect 18 --msgbox "${MSG}" 0 0
+          fi
+        fi
+      fi
+    fi
+  else
+    dialog --backtitle "`backtitle`" --title "Try recovery DSM" --aspect 18 \
+      --msgbox "Unfortunately I couldn't mount the DSM partition!" 0 0
+  fi
+}
+
 ###############################################################################
 # Permit user select the modules to include
 function selectModules() {
@@ -980,7 +1034,7 @@ function updateMenu() {
         dialog --backtitle "`backtitle`" --title "Update arpl" --aspect 18 \
           --yesno "Arpl updated with success to ${TAG}!\nReboot?" 0 0
         [ $? -ne 0 ] && continue
-        reboot
+        arpl-reboot.sh config
         exit
         ;;
 
@@ -1105,10 +1159,14 @@ while true; do
       echo "a \"Addons\""                             >> "${TMP_PATH}/menu"
       echo "x \"Cmdline menu\""                       >> "${TMP_PATH}/menu"
       echo "i \"Synoinfo menu\""                      >> "${TMP_PATH}/menu"
-      echo "d \"Build the loader\""                   >> "${TMP_PATH}/menu"
     fi
   fi
   echo "v \"Advanced menu\""                          >> "${TMP_PATH}/menu"
+  if [ -n "${MODEL}" ]; then
+    if [ -n "${BUILD}" ]; then
+      echo "d \"Build the loader\""                   >> "${TMP_PATH}/menu"
+    fi
+  fi
   if loaderIsConfigured; then
     echo "b \"Boot the loader\" "                     >> "${TMP_PATH}/menu"
   fi
@@ -1117,7 +1175,7 @@ while true; do
     echo "c \"Clean disk cache\""                     >> "${TMP_PATH}/menu"
   fi
   echo "p \"Update menu\""                            >> "${TMP_PATH}/menu"
-  echo "e \"Exit\"" >> "${TMP_PATH}/menu"
+  echo "e \"Exit\""                                   >> "${TMP_PATH}/menu"
 
   dialog --default-item ${NEXT} --backtitle "`backtitle`" --colors \
     --menu "Choose the option" 0 0 0 --file "${TMP_PATH}/menu" \
@@ -1131,7 +1189,7 @@ while true; do
     x) cmdlineMenu; NEXT="i" ;;
     i) synoinfoMenu; NEXT="d" ;;
     d) make; NEXT="v" ;;
-    v) advancedMenu; NEXT="d" ;;
+    v) advancedMenu; NEXT="b" ;;
     b) boot ;;
     k) keymapMenu ;;
     c) dialog --backtitle "`backtitle`" --title "Cleaning" --aspect 18 \
diff --git a/files/board/arpl/overlayfs/opt/arpl/model-configs/DS923+.yml b/files/board/arpl/overlayfs/opt/arpl/model-configs/DS923+.yml
index 0ff5f784..1c14bd86 100644
--- a/files/board/arpl/overlayfs/opt/arpl/model-configs/DS923+.yml
+++ b/files/board/arpl/overlayfs/opt/arpl/model-configs/DS923+.yml
@@ -23,7 +23,7 @@ serial:
     - "2040"
     - "20C0"
     - "2150"
-  middle: "SBR"
+  middle: "TQR"
   suffix: "alpha"
 disks: 4
 builds:
diff --git a/files/board/arpl/overlayfs/opt/arpl/ramdisk-patch.sh b/files/board/arpl/overlayfs/opt/arpl/ramdisk-patch.sh
index 60878b68..b0597e76 100755
--- a/files/board/arpl/overlayfs/opt/arpl/ramdisk-patch.sh
+++ b/files/board/arpl/overlayfs/opt/arpl/ramdisk-patch.sh
@@ -25,6 +25,7 @@ mkdir -p "${RAMDISK_PATH}"
 MODEL="`readConfigKey "model" "${USER_CONFIG_FILE}"`"
 BUILD="`readConfigKey "build" "${USER_CONFIG_FILE}"`"
 LKM="`readConfigKey "lkm" "${USER_CONFIG_FILE}"`"
+SN="`readConfigKey "sn" "${USER_CONFIG_FILE}"`"
 
 if [ ${BUILD} -ne ${buildnumber} ]; then
   echo -e "\033[A\n\033[1;32mBuild number changed from \033[1;31m${BUILD}\033[1;32m to \033[1;31m${buildnumber}\033[0m"
@@ -72,6 +73,8 @@ echo -n "."
 for KEY in ${!SYNOINFO[@]}; do
   _set_conf_kv "${KEY}" "${SYNOINFO[${KEY}]}" "${RAMDISK_PATH}/etc/synoinfo.conf" >"${LOG_FILE}" 2>&1 || dieLog
 done
+# Add serial number to synoinfo.conf, to help to recovery a installed DSM
+_set_conf_kv "SN" "${SN}" "${RAMDISK_PATH}/etc/synoinfo.conf" >"${LOG_FILE}" 2>&1 || dieLog
 
 # Patch /sbin/init.post
 echo -n "."
@@ -80,9 +83,11 @@ sed -e "/@@@CONFIG-MANIPULATORS-TOOLS@@@/ {" -e "r ${TMP_PATH}/rp.txt" -e 'd' -e
 rm "${TMP_PATH}/rp.txt"
 touch "${TMP_PATH}/rp.txt"
 for KEY in ${!SYNOINFO[@]}; do
-  echo "_set_conf_kv '${KEY}' '${SYNOINFO[${KEY}]}' '/tmpRoot/etc/synoinfo.conf'" >> "${TMP_PATH}/rp.txt"
+  echo "_set_conf_kv '${KEY}' '${SYNOINFO[${KEY}]}' '/tmpRoot/etc/synoinfo.conf'"          >> "${TMP_PATH}/rp.txt"
   echo "_set_conf_kv '${KEY}' '${SYNOINFO[${KEY}]}' '/tmpRoot/etc.defaults/synoinfo.conf'" >> "${TMP_PATH}/rp.txt"
 done
+echo "_set_conf_kv 'SN' '${SN}' '/tmpRoot/etc/synoinfo.conf'"                              >> "${TMP_PATH}/rp.txt"
+echo "_set_conf_kv 'SN' '${SN}' '/tmpRoot/etc.defaults/synoinfo.conf'"                     >> "${TMP_PATH}/rp.txt"
 sed -e "/@@@CONFIG-GENERATED@@@/ {" -e "r ${TMP_PATH}/rp.txt" -e 'd' -e '}' -i "${RAMDISK_PATH}/sbin/init.post"
 rm "${TMP_PATH}/rp.txt"
 
diff --git a/files/board/arpl/overlayfs/root/.bashrc b/files/board/arpl/overlayfs/root/.bashrc
index 8d86203d..1e160928 100644
--- a/files/board/arpl/overlayfs/root/.bashrc
+++ b/files/board/arpl/overlayfs/root/.bashrc
@@ -18,6 +18,7 @@ export EDITOR="/bin/nano"
 export BOOTLOADER_PATH="/mnt/p1"
 export SLPART_PATH="/mnt/p2"  # Synologic partition
 export CACHE_PATH="/mnt/p3"
+export DSMROOT_PATH="/mnt/dsmroot"
 export PATH="${PATH}:/opt/arpl"
 
 if [ ! -f ${HOME}/.initialized ]; then
diff --git a/files/board/arpl/p1/ARPL-VERSION b/files/board/arpl/p1/ARPL-VERSION
new file mode 100644
index 00000000..0deec97f
--- /dev/null
+++ b/files/board/arpl/p1/ARPL-VERSION
@@ -0,0 +1 @@
+1.0-beta8
diff --git a/img-gen.sh b/img-gen.sh
index ed13e442..d79b569d 100755
--- a/img-gen.sh
+++ b/img-gen.sh
@@ -71,6 +71,7 @@ fi
 echo "Copying files"
 VERSION=`cat VERSION`
 sed 's/^ARPL_VERSION=.*/ARPL_VERSION="'${VERSION}'"/' -i files/board/arpl/overlayfs/opt/arpl/include/consts.sh
+echo "${VERSION}" > files/board/arpl/p1/ARPL-VERSION
 cp -Ru files/* .buildroot/
 
 cd .buildroot
diff --git a/update-list.yml b/update-list.yml
index 01b2bc5d..141178d5 100644
--- a/update-list.yml
+++ b/update-list.yml
@@ -2,4 +2,5 @@ replace:
   ".buildroot/output/images/bzImage": "/mnt/p3/bzImage-arpl"
   ".buildroot/output/images/rootfs.cpio.xz": "/mnt/p3/initrd-arpl"
   "files/board/arpl/p1/grub/grub.cfg": "/mnt/p1/grub/grub.cfg"
+  "files/board/arpl/p1/ARPL-VERSION" : "/mnt/p1/ARPL-VERSION"
 remove: