Article ID: 8729, created on Aug 3, 2010, last review on Apr 17, 2012

  • Applies to:
  • Virtuozzo hypervisor 4.0 for Mac Bare Metal

Release notes

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Synopsis:          New Parallels Server Bare Metal 4.0 kernel provides a
                   number of important stability fixes and security updates.
Issue date:        2010-07-22
Product:           Parallels Server Bare Metal 4.0
Keywords:          'stability fixes' 'security updates'

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This document provides information on the new Parallels Server Bare Metal 4.0
kernel, version 2.6.18-028stab070.3.

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TABLE OF CONTENTS

1. About This Release
2. Bugs Fixed
3. Obtaining New Kernel
4. Installing New Kernel
5. Required RPMs

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1. ABOUT THIS RELEASE

The current update for Parallels Server Bare Metal 4.0 includes a number of
important security and stability fixes. It also provides Kernel Asynchronous I/O
(AIO) support to improve the performance of disk I/O operations.

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2. BUGS FIXED

Many bugs from the previous update have been fixed in the new Parallels Server
Bare Metal 4.0 kernel. Here is a small sample of them:

- A kernel panic may occur if the bonding initialization fails.

- #478071: Kernel panic occured when starting a virtual machine.

- #474513: The quota remains uncharged if you delete a file created via NFS in
           a Container that runs the NFS server.

- #478828: A kernel panic may occur when booting to the Parallels Server Bare
           Metal kernel.

- #444054: The udev start script in Containers running Ubuntu 9.04 may fail to
           write to the /proc/sys/kernel/hotplug file.

- #476604: A kernel panic may occur when running the "ionice" program using
           different Process Identification Numbers (PIDs).

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3. OBTAINING NEW KERNEL

You can download and install this kernel update using the vzup2date utility
included in the Parallels Server Bare Metal 4.0 distribution set.

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4. INSTALLING NEW KERNEL

To install the update, perform the following operations:

I. Use the "rpm -ihv" command to install the new kernel and kernel modules.

# rpm -ivh vzkernel-2.6.18-028stab070.3.i686.rpm \
vzmodules-2.6.18-028stab070.3.i686.rpm \
parallels-kmod-4.0.5612.535050-1.2.6.18_028stab070.3.x86_64.rpm \
Preparing...                        ################################# [100%]
    1:vzkernel                      ################################# [50%]
    2:vzmodules                 ################################# [100%]
    2:parallels-kmod           ################################# [100%]

    Please DO NOT USE the "rpm -Uhv" command to install the kernel. Otherwise,
    all the kernels previously installed on your system may be removed from
    the Hardware Node.

II. Reboot your computer with the "shutdown -r now" command to boot the new
     kernel.

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5. REQUIRED RPMS

Depending on the processor installed on the Hardware Node, the following RPM
packages are included in the kernel update:

   vzkernel-2.6.18-028stab070.3.x86_64.rpm
   vzmodules-2.6.18-028stab070.3.x86_64.rpm
   parallels-kmod-4.0.5612.535050-1.2.6.18_028stab070.3.x86_64.rpm
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Copyright © 1999-2010 Parallels Holdings, Ltd. and its affiliates. All rights reserved.


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