Article ID: 6928, created on Nov 23, 2009, last review on Apr 16, 2012

  • Applies to:
  • Virtuozzo containers for Linux 4.0

Release notes

Synopsis:          New Parallels Virtuozzo Containers 4.0 tools update provides
                            fixes for Containers migration functionality.
Issue date:       2009-10-27
Product:            Parallels Virtuozzo Containers 4.0
Keywords:        'vzctl' 'networking' 'tunnel' 'vzpkg' 'Fedora' 'Karmic Koala'

1. What's Included in This Update

Updated packages for Parallels Virtuozzo Containers 4.0 provide the following
user-level tool fixes:
 - managing Containers using the 'vzctl' utility
 - managing EZ templates using the 'vzpkg' utility

2. Problem Description

 - Restoring a Container from its dump file may fail if any hard-linked files
   were open when checkpointing the Container.

 - It is impossible to assign the same external IP address to more than one

 - yum 2.x may fail to resolve dependencies of some Fedora 11 packages.

 - IP over GRE tunneling is not supported in Containers.

 - Creating Containers running Fedora 12 is not supported.

 - Creating Containers running Ubuntu Karmic Koala 9.10 is not supported.

 - Repositories created by the latest 'createrepo' utility may not be supported
   by Parallels Virtuozzo Containers.

 All Parallels Containers 4.0 users are advised to update their tools packages.

3. Affected Components

 - 'vzctl' is the primary tool for Container management. This tool is used
   to create new Containers, start and stop them, configure their parameters,

 - 'vztt' is a set of tools used to manage EZ templates. EZ templates introduced
   in Virtuozzo 3.0 are more flexible and easy to manage compared to standard

4. Bug Fixes

 #441992 - vzctl chkpnt/restore does not handle correctly Containers with open
           hard-linked files.

 #449466 - Different Containers cannot have the same external IP address.

 #436165 - New feature: support for IP over GRE tunneling in a Container is

 #447258 - yum 3.x should be used for "Fedora 11"-based Containers.

 #448141 - Repositories created by createrepo-0.9.7 could not be used with
           Parallels Containers.

5. Obtaining Update

 You can download and install this tools update using the 'vzup2date' utility
 included in the Parallels Containers 4.0 distribution.

6. Installing Update

 Use the 'vzup2date' command to install the new Parallels Virtuozzo tools

 The update does not require Parallels Containers restart or system reboot.

7. RPMs required:

 The following RPM packages are included in the tools update:

(c) 1999-2009 Parallels Holdings, Ltd. and its affiliates. All rights reserved.

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