ZStack International

During the upgrade of ZStack, the core files and database of the current ZStack are backed up to the corresponding directory by default.

1. Back up the core files in ZStack of the previous version.

   cp /usr/local/zstack/upgrade/2017-11-09-15-41-52 /root -r

2. Back up the database of the previous version.

   cp /usr/local/zstack/db_backup/2017-11-09-15-42-43/backup.sql /root

3. Back up the database again.

   zstack-ctl dump_mysql

4. Delete the current ZStack environment.

   zstack-ctl stop
   rm -rf /usr/local/zstack

5. Use the previous installation package to directly install ZStack.

   bash ZStack-installer-3.10.0.bin -D

6. Perform recovery by using the core files backed up in Step 1.

   zstack-ctl stop
   mv /usr/local/zstack/apache-tomcat/webapps/zstack /usr/local/zstack/apache-tomcat/webapps/zstack-bk
   cp /root/2017-11-09-15-41-52/zstack /usr/local/zstack/apache-tomcat/webapps  -r
   chown zstack:zstack /usr/local/zstack/apache-tomcat/webapps/zstack -R

7. Restore the database backed up in Step 2.

   cat /root/backup.sql |mysql -u root -p zstack.mysql.password zstack

8. Start the ZStack management node service. Then, ZStack is successfully restored to the previous version.

   zstack-ctl start