Upgrade Ravada with Rollback
This is the ugprade procedure when you want to keep everything just in case you wanted to roll back to the previous version.
Step 1: Shutdown the services
sudo systemctl stop rvd_back
sudo systemctl stop rvd_front
Step 2: Keep the package and data
Step 2.1: Keep the package file
If you installed the package it must be in the server somewhere. It is a deb file called ravada_x.y.z_system-version_all.deb.
When in doubt, we keep most of the released packages in the UPC ETSETB repository.
Step 2.2: Save Current Data
Check the database user and password from the config file /etc/ravada.conf. Then dump the database:
mysqldump -u rvd_user -p ravada > ravada.sql
Step 4: Upgrade
Step 4.1: Fetch the new package
Download the deb package of the new version found at the UPC ETSETB repository.
wget http://infoteleco.upc.edu/img/debian/ravada_2.2.1_ubuntu-20.04_all.deb
Step 4.2: Install
Install the deb package.
sudo apt install ./ravada_2.2.1_ubuntu-20.04_all.deb
On some upgrades may be required to install some dependencies. You will see because the packaging system will warn about it:
dpkg: dependency problems prevent configuration of ravada:
ravada depends on libdatetime-perl; however:
Package libdatetime-perl is not installed.
If so, install those dependencies automatically running:
sudo apt-get -f install
Step 4.3: systemd
Reconfigure systemd.
sudo systemctl daemon-reload
Step 4.4: apache config
Check the apache configuration
If you upgrade from older releases you may have to add some lines to the apache proxy configuration. Check the Apache proxy guide.
Step 4.5: start
Restart the services.
sudo systemctl restart rvd_back
sudo systemctl restart rvd_front
If you are upgrading from a very old release, it may take a while to proceed. You may check the log file for information opening another terminal:
sudo tail -f /var/log/syslog
Check the daemons are running:
sudo systemctl status rvd_back
sudo systemctl status rvd_front
Finally connect to your server and try to run and clone a virtual machine.
Rollback
- If something failed and you wanted to rollback follow the