diff --git a/package.json b/package.json
index 372aa5870..09228cb4a 100644
--- a/package.json
+++ b/package.json
@@ -79,7 +79,8 @@
 		"xss-clean": "^0.1.1",
 		"qs": "^6.5.2",
 		"child_process": "^1.0.2",
-		"os": "^0.1.1"
+		"os": "^0.1.1",
+		"semver": "^5.6.0"
 	},
 	"devDependencies": {
 		"automatic-release": "^1.1.1",
diff --git a/scripts/postinstall.js b/scripts/postinstall.js
index 58d051a50..8a74c5f02 100644
--- a/scripts/postinstall.js
+++ b/scripts/postinstall.js
@@ -11,14 +11,15 @@
  *  
  */
 
-
 const os = require('os');
 const execSync = require('child_process').execSync;
 const fs = require('fs');
+const semver = require('semver');
+const currentVersion = require('../package').version;
 
 const rootDir = `${__dirname}/../`;
-let installation_variables_file_name = 'iofogcontroller_install_variables';
-let installation_variables_file;
+let installationVariablesFileName = 'iofogcontroller_install_variables';
+let installationVariablesFile;
 let tempDir;
 
 if (os.type() === 'Linux') {
@@ -31,17 +32,45 @@ if (os.type() === 'Linux') {
   throw new Error("Unsupported OS found: " + os.type());
 }
 
-installation_variables_file = tempDir + installation_variables_file_name;
-
+installationVariablesFile = tempDir + installationVariablesFileName;
 
 const devDbBackup = `${tempDir}dev_database.sqlite`;
+const devDb = `${rootDir}/src/sequelize/dev_database.sqlite`;
 if (fs.existsSync(devDbBackup)) {
-  fs.renameSync(devDbBackup, `${rootDir}/src/sequelize/dev_database.sqlite`)
+  fs.renameSync(devDbBackup, devDb);
 }
 
 const prodDbBackup = `${tempDir}prod_database.sqlite`;
+const prodDb = `${rootDir}/src/sequelize/prod_database.sqlite`;
 if (fs.existsSync(prodDbBackup)) {
-  fs.renameSync(prodDbBackup, `${rootDir}/src/sequelize/prod_database.sqlite`)
+  fs.renameSync(prodDbBackup, prodDb);
 }
 
-//TODO: add version migrations
+try {
+  const instalationVarsStr = fs.readFileSync(installationVariablesFile);
+  const instalationVars = JSON.parse(instalationVarsStr);
+  const prevVersion = instalationVars.prevVer;
+
+  console.log(`previous version - ${prevVersion}`);
+  console.log(`new version - ${currentVersion}`);
+
+  if (semver.satisfies(prevVersion, '<=1.0.0')) {
+    console.log('upgrading from version <=1.0.0 :');
+    console.log('    inserting seeds meta info in db');
+    const options = {
+      env: {
+        "PATH": process.env.PATH
+      },
+      stdio: [process.stdin, process.stdout, process.stderr]
+    };
+
+    execSync(`sqlite3 ${prodDb} "insert into SequelizeMeta (name) values ('20180928110125-insert-registry.js');"`, options);
+    execSync(`sqlite3 ${prodDb} "insert into SequelizeMeta (name) values ('20180928111532-insert-catalog-item.js');"`, options);
+    execSync(`sqlite3 ${prodDb} "insert into SequelizeMeta (name) values ('20180928112152-insert-iofog-type.js');"`, options);
+    execSync(`sqlite3 ${prodDb} "insert into SequelizeMeta (name) values ('20180928121334-insert-catalog-item-image.js');"`, options);
+  }
+
+  fs.unlinkSync(installationVariablesFile);
+} catch (e) {
+  console.log('no previous version')
+}
\ No newline at end of file
diff --git a/scripts/postinstall.sh b/scripts/postinstall.sh
deleted file mode 100644
index c0d4e8555..000000000
--- a/scripts/postinstall.sh
+++ /dev/null
@@ -1,77 +0,0 @@
-#!/bin/bash
-
-##TODO: remove after js scripts finished
-
-vercomp () {
-    if [[ $1 == $2 ]]
-    then
-        echo '='
-        return
-    fi
-    local IFS=.
-    local i ver1=($1) ver2=($2)
-    # fill empty fields in ver1 with zeros
-    for ((i=${#ver1[@]}; i<${#ver2[@]}; i++))
-    do
-        ver1[i]=0
-    done
-    for ((i=0; i<${#ver1[@]}; i++))
-    do
-        if [[ -z ${ver2[i]} ]]
-        then
-            # fill empty fields in ver2 with zeros
-            ver2[i]=0
-        fi
-        if ((10#${ver1[i]} > 10#${ver2[i]}))
-        then
-            echo '>'
-            return
-        fi
-        if ((10#${ver1[i]} < 10#${ver2[i]}))
-        then
-            echo '<'
-            return
-        fi
-    done
-    echo '='
-    return
-}
-
-#START
-#restore db
-IOFOG_CONTROLLER_NODE_MODULES=$(npm root -g iofog-controller)
-IOFOG_CONTROLLER_SEQUELIZE_DIR=$IOFOG_CONTROLLER_NODE_MODULES'/iofogcontroller/src/sequelize'
-
-DEV_DB_FILE=$IOFOG_CONTROLLER_SEQUELIZE_DIR'/dev_database.sqlite'
-DEV_DB_FILE_BACKUP='/tmp/dev_database.sqlite'
-if [ -f $DEV_DB_FILE_BACKUP ]; then
-    mv $DEV_DB_FILE_BACKUP $DEV_DB_FILE
-fi
-
-PROD_DB_FILE=$IOFOG_CONTROLLER_SEQUELIZE_DIR'/prod_database.sqlite'
-PROD_DB_FILE_BACKUP='/tmp/prod_database.sqlite'
-if [ -f $PROD_DB_FILE_BACKUP ]; then
-    mv $PROD_DB_FILE_BACKUP $PROD_DB_FILE
-fi
-
-#prev versions migrations
-if [ -f /tmp/iofogcontroller_install_variables ]; then
-    PREV_IOFOG_CONTROLLER_VER=$(grep prev_ver /tmp/iofogcontroller_install_variables | awk '{print $2}')
-fi
-
-if [[ -z "${PREV_IOFOG_CONTROLLER_VER// }" ]]
-then
-    echo "No previous version"
-else
-    echo "Previous version: "${PREV_IOFOG_CONTROLLER_VER}
-    if [[ $(vercomp $PREV_IOFOG_CONTROLLER_VER 1.0.0) = '<' ]] || [[ $(vercomp $PREV_IOFOG_CONTROLLER_VER 1.0.0) = '=' ]]
-    then
-        echo "Upgrading from version 1.0.0"
-        sqlite3 src/sequelize/prod_database.sqlite "insert into SequelizeMeta (name) values ('20180928110125-insert-registry.js');"
-        sqlite3 src/sequelize/prod_database.sqlite "insert into SequelizeMeta (name) values ('20180928111532-insert-catalog-item.js');"
-        sqlite3 src/sequelize/prod_database.sqlite "insert into SequelizeMeta (name) values ('20180928112152-insert-iofog-type.js');"
-        sqlite3 src/sequelize/prod_database.sqlite "insert into SequelizeMeta (name) values ('20180928121334-insert-catalog-item-image.js');"
-    fi
-fi
-
-rm -rf /tmp/iofogcontroller_install_variables
\ No newline at end of file
diff --git a/scripts/preuninstall.js b/scripts/preuninstall.js
index 0cec350a3..da1fbcea5 100644
--- a/scripts/preuninstall.js
+++ b/scripts/preuninstall.js
@@ -17,8 +17,8 @@ const fs = require('fs');
 const version = require('../package').version;
 
 const rootDir = `${__dirname}/../`;
-let installation_variables_file_name = 'iofogcontroller_install_variables';
-let installation_variables_file;
+let installationVariablesFileName = 'iofogcontroller_install_variables';
+let installationVariablesFile;
 let tempDir;
 
 if (os.type() === 'Linux') {
@@ -31,9 +31,13 @@ if (os.type() === 'Linux') {
   throw new Error("Unsupported OS found: " + os.type());
 }
 
-installation_variables_file = tempDir + installation_variables_file_name;
+installationVariablesFile = tempDir + installationVariablesFileName;
 
-fs.writeFileSync(installation_variables_file, `prev_ver: ${version}`);
+const instalationVars = {
+  prevVer: version
+};
+
+fs.writeFileSync(installationVariablesFile, JSON.stringify(instalationVars));
 
 const devDb = `${rootDir}/src/sequelize/dev_database.sqlite`;
 if (fs.existsSync(devDb)) {