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Problem

How to upgrade the FileFlex server operating system from Ubuntu 16.04 to Ubuntu 18.04

Solution 1 - upgrade with os_upgrade script

Follow these proposed steps:

1. Login into Server Administration page
2. Stop all servers except Administration and Storage Server
3. Perform Backup Now from Backup & Restore
4. Download the newly-created backup to your local storage
5. Depending on where your VM is hosted (VMWare Workstation, VirtualBox, HyperV, etc), go to its terminal and login with the user sadmin

6. Type lsb_release -a. If it returns Ubuntu 18, then everything is OK and there is no need to continue.

   Distributor ID: Ubuntu Description:    Ubuntu 18.04.3 LTS Release:        18.04 Codename:       bionic

   
   

7. Type sudo /opt/ffs/os_upgrade.sh
8. The process of upgrading the operating system will start.
9. It will perform an automatic reboot. Once done, you will be asked again to login
10. The process will start automatically, no user-interaction is required from your side, just wait to reboot once again
11. Once ready, you will see: Ubuntu 18.04.3. LTS
12. And that's it, now you can go back to Server Admin and start all servers in order to continue using our application.

Solution 2 - manual OS upgrade prior FileFlex script

1. Login into FileFlex Enterprise Server Administration page
2. Stop all servers except Administration and Storage Server
3. Perform Backup Now from Backup & Restore
4. Download the newly-created backup to your local storage
5. Depending on where your VM is hosted (VMWare Workstation, VirtualBox, HyperV, etc), go to its terminal and login the user sadmin

6. Type lsb_release -a.
   6.1. If it returns Ubuntu 18.04.3, go back to Server Administration page and press the Upgrade Machine button

   Distributor ID: Ubuntu Description:    Ubuntu 18.04.3 LTS Release:        18.04 Codename:       bionic

   6.2. If it returns Ubuntu 16.xx.xx you should manually upgrade OS through the terminal 

7. Run sudo mv /etc/apt/sources.list.d/ffs.list /etc/apt/sources.list.d/ffs.list.back to disable temporary fileflex repository 
8. Run sudo apt-get update
9. Run sudo apt dist-upgrade
   This will upgrade the OS system and all system packages to Ubuntu 16.04.7.
   During this step upgrade you might be asked to keep clamd package config
    
   Choose "keep the local version currently installed
   NOTE: If you are upgrading Ubuntu OS on Oracle VirtualBox you may see the following: 

   Image Added

   Choose Y or I : install the package maintainer's version  for tools.conf

10. Reboot the system when requested once the upgrade process completes.
11. If system reboot is not requested use the sudo reboot command
12. After system reboot, login to server console and type sudo do-release-upgrade --mode=server -f DistUpgradeViewNonInteractive 
    This command will upgrade system to new release 18.04. 
    During this step upgrade you might be asked to keep sysctl.conf file
    
    Type N or O
    
13. Run sudo reboot to restart the system
14.  Use the  lsb_release -a command to check the OS version. It should point to Release: 18.04.
    
15. Enable fileflex repository running sudo mv /etc/apt/sources.list.d/ffs.list.back /etc/apt/sources.list.d/ffs.list
16. Run  sudo apt-get update  
17. Load FileFlex Server Administration page
18. Press the Upgrade Machine button 

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