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Installation on Debian 9

224 bytes added, 09:25, 28 January 2020

→‎Download OS templates: ctcreate to ctctl

{{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 Devuan or Debian ~~GNU/Linux~~ because is developed as an independent GNU/Linux distribution}}

= '''Volumes and file systems''' =

Script=/etc/initramfs-tools/scripts/local-premount/tune

echo '#!/bin/sh' | sudo tee $Script

echo 'if [ "$~~readonly~~1" != "yprereqs" ] ; 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

sudo rm /etc/initramfs-tools/scripts/local-premount/tune

sudo apt --reinstall install initramfs-tools-core

sudo update-initramfs -u -k all

This recipe is useful for any volume that can't be neither unmounted nor remounted readonly.

= '''Change Systemd to SystemV''' =

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

sudo apt install sysvinit-core sysvinit-utils

sudo reboot

sudo apt --auto-remove remove 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]

= '''Reboot into OpenVZ kernel''' =

{{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

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

An OS template is a GNU distribution for 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.

sudo vztmpl-dl --gpg-check debian-8.0-x86_64-minimal

~~Alternatively, you can also download~~ Alternatives:* Download precreated template caches from [~~http://openvz.org/download~~[Download/template/~~cache Downloads~~ precreated|Download » ~~Templates~~ 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.* '''[https://downloads.actiu.net/ctctl/ ctctl]''' helper to create Debian (or derivative) container without template (caches it as a local template). This tool manages unprivileged LXC containers too.

= Next steps =

= See also =

* [[Installation on Debian 8]] (oldstable) or Devuan 1.0 (Jessie, stable, SystemV)

[[Category: Installation]]

[[Category: HOWTO]]

[[Category: Debian]]

Narcisgarcia

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Installation on Debian 9

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