The most common way of installing and upgrading Plesk is to use the
Plesk Installer utility. This utility connects to the Plesk Updates
server where the Plesk distribution packages are stored. It then
retrieves, downloads, and installs Plesk. You can download the Plesk
Installer utility from https://page.plesk.com/plesk-onyx-free-download.
For detailed instructions on how to use Plesk Installer, refer to the
Plesk Installation and Upgrade
Guide.
Installing Plesk in Virtuozzo Containers
If you operate in the Virtuozzo containers environment, you can use
application templates for installing Plesk on containers.
When the application templates are installed on a Virtuozzo Containers
hardware node, they allow you to easily deploy the application on as
many containers as required, saving system resources such as disk space.
You can download the Plesk templates using the command yum install.
For more details, see
https://kb.plesk.com/en/115548.
For more information on installing Plesk on Virtuozzo Containers, read
the Plesk Installation and Upgrade Guide, chapter Installing Plesk
in Virtuozzo Containers.
Checking Potential Issues Before Upgrading to Plesk 17
If you use Plesk 9 or earlier and want to upgrade it to Plesk Onyx, you
may encounter problems due to changes in the Plesk business model. In
particular, it might be impossible to transfer some settings and
business objects.
To efficiently anticipate or resolve the problems, we offer a tool
called plesk101_preupgrade_checker.php. This tool checks potential
business logic issues with upgrading to Plesk 10 and later and gives
recommendations that help you fix the possible problems related to
transition of Plesk objects. You can download the tool and find
descriptions of the report messages at http://kb.plesk.com/9436.