Installation on Debian 9 - Revision history

Narcisgarcia: /* Download OS templates */ ctcreate to ctctl

2020-01-28T09:25:36Z

‎Download OS templates: ctcreate to ctctl

Narcisgarcia: /* Install packages */ VarLock: it only was a Devuan issue

2017-10-07T11:22:38Z

‎Install packages: VarLock: it only was a Devuan issue

Narcisgarcia: /* Install packages */ Patch VarLock directory creation

2017-10-07T10:46:47Z

‎Install packages: Patch VarLock directory creation

Narcisgarcia: /* How to remove metadata_csum from a mounted partition */

2017-10-07T10:19:42Z

‎How to remove metadata_csum from a mounted partition

Narcisgarcia: avoid-systemd Devuan style

2017-07-15T09:23:08Z

avoid-systemd Devuan style

Narcisgarcia: /* How to remove metadata_csum from a mounted partition */

2017-07-13T10:33:08Z

‎How to remove metadata_csum from a mounted partition

Narcisgarcia: Small fixes

2017-07-13T09:44:27Z

Small fixes

Narcisgarcia: Main sections in bold

2017-07-12T16:44:21Z

Main sections in bold

Narcisgarcia at 16:41, 12 July 2017

2017-07-12T16:41:38Z

Show changes

Narcisgarcia: Created page with "This document briefly describes the steps needed to install OpenVZ 6 (legacy) on your Debian 9 "Stretch" machine. {{Out|Current commercial version of OpenVZ (Virtuozzo 7)..."

2017-07-11T14:37:20Z

Created page with "This document briefly describes the steps needed to install OpenVZ 6 (legacy) on your Debian 9 "Stretch" machine. {{Out|Current commercial version of OpenVZ (Virtuozzo 7)..."

New page

This document briefly describes the steps needed to install OpenVZ 6 (legacy) on your Debian 9 "Stretch" machine.

{{Out|Current commercial version of OpenVZ ([[Virtuozzo]] 7) is not installable on Debian GNU/Linux because is developed as an independent GNU/Linux distribution}}

== Requirements ==

Debian GNU/Linux without "64bit" feature at Ext4 filesystem.

== Filesystem and defaults ==

Debian 9 installer formats Ext4 with new features (64bit metadata_csum) and this is incompatible with OpenVZ6 kernel (initrd cannot mount root). Then it's necessary to boot without requiring the mount of this advanced format. Options:
* Root volume (/) as Ext3 and /var/lib/vz separated in an Ext4
* Install Debian 8 (will format without "64bit") and upgrade to Debian 9
* Install Debian 9 to a previously formatted Ext4 without "64bit".

== Partitions and /vz file system ==

It is recommended to use a separate partition for containers (by default '''/var/lib/vz''') and format it to '''ext4'''.

== Change Systemd to SystemV ==

{{Note|Warning! This operation can make some software to stop working, such as desktop environments.}}

sudo apt install sysvinit-core sysvinit-utils
# Must boot with SystemV to release Systemd
sudo reboot
sudo apt --auto-remove remove systemd
echo -e 'Package: *systemd*\nPin: release *\nPin-Priority: -1\n' | sudo tee /etc/apt/preferences.d/systemd

* Other recipes at [http://without-systemd.org/wiki/index.php/Debian_Stretch without-systemd.org]

== Register OVZ updated repository ==

RepoFile=/etc/apt/sources.list.d/openvz.list
RepoUrl=http://download.openvz.org/debian
echo "deb $RepoUrl jessie main" | sudo tee "$RepoFile"
echo "deb $RepoUrl wheezy main" | sudo tee -a "$RepoFile"
wget -qO - http://ftp.openvz.org/debian/archive.key | sudo apt-key add -
sudo apt-get --allow-unauthenticated update
As of July 2017, release key at openvz.org site is invalid, and last command will complain:
W: GPG error: http://download.openvz.org/debian jessie Release: The following signatures were invalid: DA2458173935F9DE9B76BA7547B5DBAB0FCA9BAC
W: The repository 'http://download.openvz.org/debian jessie Release' is not signed.
N: Data from such a repository can't be authenticated and is therefore potentially dangerous to use.
N: See apt-secure(8) manpage for repository creation and user configuration details.
W: GPG error: http://download.openvz.org/debian wheezy Release: The following signatures were invalid: DA2458173935F9DE9B76BA7547B5DBAB0FCA9BAC
W: The repository 'http://download.openvz.org/debian wheezy Release' is not signed.
N: Data from such a repository can't be authenticated and is therefore potentially dangerous to use.
N: See apt-secure(8) manpage for repository creation and user configuration details.
You can continue.

{{Note|For more info about Debian repositories, see http://download.openvz.org/debian.}}

== Install packages ==

KPackage="linux-image-openvz-$(dpkg --print-architecture)"
sudo apt --allow-unauthenticated --install-recommends install $KPackage vzdump ploop initramfs-tools
if [ ! -d /vz ] ; then sudo ln -s /var/lib/vz/ /vz ; fi

* Create file /etc/vz/vznet.conf with the following line:
EXTERNAL_SCRIPT="/usr/sbin/vznetaddbr"
* Optionally you can set containers completely stop when service stops at /etc/vz/vz.conf
VE_STOP_MODE=stop

== Reboot into OpenVZ kernel ==

sudo reboot

{{Note|If you don't see a boot manager entry with word "'''openvz'''", you must choose "'''Advanced options'''" to select there first ''openvz'' listed kernel.}}

Check that the OpenVZ processes are running:
sudo ps ax | grep -v 'grep' | grep 'vzmond'

== Set OpenVZ as default to boot ==

Because of GRUB2 default criteria, default kernel to boot can still be the one from Debian's repository (non OVZ). If you want to change this behaviour, once you've booted fine into OpenVZ kernel, you can remove other unuseful kernels:

Packages="$(apt list --installed 'linux-image-*' 2>/dev/null | grep -e '^linux-image-' | grep -ve 'openvz' | cut -f 1 -d '/')"
sudo apt --autoremove remove $Packages

== Download OS templates ==

This step is optional, vzctl is able to download templates on demand.

An OS template is a Linux distribution installed into a container
and then packed into a gzipped tarball. Using such a cache, a new container
can be created in a minute.

# Register official container templates:
OpenvzKey="$(echo $(sudo gpg --batch --search-keys security@openvz.org 2>&1 | grep -ie ' key.*created' | sed -e 's|key|@|g' | cut -f 2 -d '@') | cut -f 1 -d ' ' | cut -f 1 -d ',')"
sudo gpg --recv-keys $OpenvzKey
sudo vztmpl-dl --gpg-check --list-remote

# Example:
sudo vztmpl-dl --gpg-check debian-8.0-x86_64-minimal

Alternatively, you can also download precreated template caches from [http://openvz.org/download/template/cache Downloads » Templates » Precreated], or from one of the [https://mirrors.openvz.org/ mirrors]. Put those tarballs '''as-is (no unpacking needed)''' to the <tt>/vz/template/cache/</tt> directory.

== Next steps ==

OpenVZ is now set up on your machine. Follow on to [[basic operations in OpenVZ environment]] document.

== See also ==
* [[Installation on Debian 8]] oldstable

[[Category: Installation]]
[[Category: HOWTO]]
[[Category: Debian]]

@@ Line 142: / Line 142: @@
   sudo vztmpl-dl --gpg-check debian-8.0-x86_64-minimal
-Alternatively, you can also download precreated template caches from [[Download/template/precreated|Download » Template » Precreated]], or from one of the [https://mirrors.openvz.org/ mirrors]. Put those tarballs '''as-is (no unpacking needed)''' to the <tt>/vz/template/cache/</tt> directory.
+Alternatives:
 = Next steps =

@@ Line 25: / Line 25: @@
   Script=/etc/initramfs-tools/scripts/local-premount/tune
   echo '#!/bin/sh' | sudo tee $Script
-  echo 'if [ "$readonly" != "y" ] ; then exit 0 ; fi' | sudo tee -a $Script
+  echo 'if [ "$1" = "prereqs" ] ; then exit 0 ; fi' | sudo tee -a $Script
   echo e2fsck -f $Volume | sudo tee -a $Script
   echo tune2fs -O -metadata_csum $Volume | sudo tee -a $Script

@@ Line 39: / Line 39: @@
   sudo rm /etc/initramfs-tools/scripts/local-premount/tune
   sudo apt --reinstall install initramfs-tools-core
 This recipe is useful for any volume that can't be neither unmounted nor remounted readonly.

@@ Line 2: / Line 2: @@
 {{Note|The best and latest Debian version for OpenVZ 6 is [[Installation on Debian 8|Devuan 1.0]], but Debian 9 makes really easy the coexistence of OVZ and unprivileged LXC containers.}}
-{{Out|Current commercial version of OpenVZ ([[Virtuozzo]] 7) is not installable on Debian GNU/Linux because is developed as an independent GNU/Linux distribution}}
+{{Out|Current commercial version of OpenVZ ([[Virtuozzo]] 7) is not installable on Devuan or Debian because is developed as an independent GNU/Linux distribution}}
 = '''Volumes and file systems''' =
@@ Line 67: / Line 67: @@
 = '''Change Systemd to SystemV''' =
-{{Note|Warning! This operation can make some software to stop working, such as desktop environments.}}
+{{Note|Warning! This operation can make some desktop software to stop working.}}
   sudo apt install sysvinit-core sysvinit-utils
@@ Line 111: / Line 111: @@
 = '''Reboot into OpenVZ kernel''' =
-{{Note|At boot manager, in "Advanced options for Debian GNU/Linux", you will find kernels named "openvz". Select the first listed.}}
+{{Note|At boot manager, in "Advanced options for Debian GNU/Linux", you will find kernels named "2.6.32-openvz". Select the first listed.}}
   sudo reboot
@@ Line 129: / Line 129: @@
 This step is optional, vzctl is able to download templates on demand.
-An OS template is a Linux distribution installed into a container
+An OS template is a GNU distribution for Linux, installed into a container
 and then packed into a gzipped tarball. Using such a cache, a new container
 can be created in a minute.
@@ Line 141: / Line 141: @@
   sudo vztmpl-dl --gpg-check debian-8.0-x86_64-minimal
-Alternatively, you can also download precreated template caches from [http://openvz.org/download/template/cache Downloads » Templates » Precreated], or from one of the [https://mirrors.openvz.org/ mirrors]. Put those tarballs '''as-is (no unpacking needed)''' to the <tt>/vz/template/cache/</tt> directory.
+Alternatively, you can also download precreated template caches from [[Download/template/precreated|Download » Template » Precreated]], or from one of the [https://mirrors.openvz.org/ mirrors]. Put those tarballs '''as-is (no unpacking needed)''' to the <tt>/vz/template/cache/</tt> directory.
 = Next steps =
@@ Line 148: / Line 148: @@
 = See also =
-* [[Installation on Debian 8]] (oldstable) or Devuan 1.0 (Jessie)
+* [[Installation on Debian 8]] (oldstable) or Devuan 1.0 (Jessie, stable, SystemV)
 [[Category: Installation]]
 [[Category: HOWTO]]
 [[Category: Debian]]

@@ Line 1: / Line 1: @@
-This document briefly describes the steps needed to install OpenVZ 6 (legacy) on your Debian 9 "Stretch" (amd64 or i386) machine.
+This is a guide to install OpenVZ 6 (legacy) on your Debian 9 "Stretch" (amd64 or i386) machine.
 {{Note|The best and latest Debian version for OpenVZ 6 is [[Installation on Debian 8|Devuan 1.0]], but Debian 9 makes really easy the coexistence of OVZ and unprivileged LXC containers.}}
 {{Out|Current commercial version of OpenVZ ([[Virtuozzo]] 7) is not installable on Debian GNU/Linux because is developed as an independent GNU/Linux distribution}}
-= Volumes and file systems =
+= '''Volumes and file systems''' =
 It is recommended to use a separate partition for containers (by default '''/var/lib/vz''') and format it to '''compatible ext4'''.
@@ Line 65: / Line 65: @@
 You must not format btrfs with Debian installer because features cannot be disabled after.
-= Change Systemd to SystemV =
+= '''Change Systemd to SystemV''' =
 {{Note|Warning! This operation can make some software to stop working, such as desktop environments.}}
@@ Line 77: / Line 77: @@
 * More recipes at [http://without-systemd.org/wiki/index.php/Debian_Stretch without-systemd.org]
-= Register OVZ updated repository =
+= '''Register OVZ updated repository''' =
   RepoFile=/etc/apt/sources.list.d/openvz.list
@@ Line 98: / Line 98: @@
 {{Note|For more info about Debian repositories, see http://download.openvz.org/debian.}}
-= Install packages =
+= '''Install packages''' =
   KPackage="linux-image-openvz-$(dpkg --print-architecture)"
@@ Line 109: / Line 109: @@
   VE_STOP_MODE=stop
-= Reboot into OpenVZ kernel =
+= '''Reboot into OpenVZ kernel''' =
 {{Note|At boot manager, in "Advanced options for Debian GNU/Linux", you will find kernels named "openvz". Select the first listed.}}

@@ Line 74: / Line 74: @@
   sudo reboot
   sudo apt --auto-remove remove systemd
-  echo -e 'Package: *systemd*\nPin: release *\nPin-Priority: -1\n' | sudo tee /etc/apt/preferences.d/systemd
+  echo -e 'Package: *systemd*\nPin: release *\nPin-Priority: -1\n' | sudo tee /etc/apt/preferences.d/avoid-systemd
 * More recipes at [http://without-systemd.org/wiki/index.php/Debian_Stretch without-systemd.org]