User`s guide

Before beginning the upgrade process, it is important to choose the proper upgrade scenario.
Doing so will help you avoid difficulties you may otherwise encounter and will also ensure you can
successfully solve any problems that may still occur. You can use one of the following scenarios to
upgrade your system:
First Scenario
Typically, you perform an in-place upgrade of an existing system. This upgrade scenario is
supported for servers running Parallels Virtuozzo Containers 4.0 and 4.6 and is described in
Upgrading from Parallels Virtuozzo Containers 4.0 and 4.6 (p. 8).
Second Scenario
You want to upgrade the Host operating system (Host OS) installed on your server together with
the Parallels Virtuozzo Containers software running on it. In this case, follow these steps:
1 Back up all important Virtuozzo and Container configuration files.
2 Reinstall the Host operating system on the server.
3 Install Parallels Virtuozzo Containers 4.7 on the server.
4 Restore the backed up Virtuozzo and Container configuration files.
Detailed information on this scenario is given in Upgrading Host Operating Systems with
Parallels Virtuozzo Containers (p. 11).
Third Scenario
You have a spare server to perform a new Parallels Virtuozzo Containers 4.7 installation. In this
case, follow these steps:
1 Install Parallels Virtuozzo Containers 4.7 on the spare server. If the license that you own is in the
old license format, refer to the Upgrading License Manually section below for a way to
upgrade the license to the Parallels Virtuozzo Containers 4.7 format; then use it during a fresh
installation.
2 Migrate all Containers from the Hardware Node you want to upgrade to the spare server.
3 If you store the Container (called Virtual Environment in SWsoft Virtuozzo 3.5.1 Service Pack 1)
backups on the same Hardware Node, copy the backup folder to the spare server.
4 Check that all the Containers on the spare server can be started and stopped. To do this, use
Parallels Virtual Automation, Parallels Management Console, and Parallels command-line
utilities.
C HAPTER 2
Upgrade Scenarios