Difference between revisions of "Installation on Debian 8"
Narcisgarcia (talk | contribs) m (avoid-systemd Devuan style) |
Narcisgarcia (talk | contribs) (→Download OS templates: ctcreate to ctctl) |
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# Must boot with SystemV to release Systemd | # Must boot with SystemV to release Systemd | ||
sudo reboot | sudo reboot | ||
| − | sudo apt-get remove systemd | + | sudo apt-get --autoremove remove systemd |
| − | |||
echo -e 'Package: *systemd*\nPin: release *\nPin-Priority: -1\n' | sudo tee /etc/apt/preferences.d/avoid-systemd | echo -e 'Package: *systemd*\nPin: release *\nPin-Priority: -1\n' | sudo tee /etc/apt/preferences.d/avoid-systemd | ||
| Line 43: | Line 42: | ||
* Optionally you can set containers completely stop when service stops at /etc/vz/vz.conf | * Optionally you can set containers completely stop when service stops at /etc/vz/vz.conf | ||
VE_STOP_MODE=stop | VE_STOP_MODE=stop | ||
| + | |||
| + | * Only Devuan: link to be recognised as Debian | ||
| + | if [ -f /etc/devuan_version ] ; then sudo ln -s /etc/devuan_version /etc/debian_version ; fi | ||
= '''Reboot into OpenVZ kernel''' = | = '''Reboot into OpenVZ kernel''' = | ||
| Line 58: | Line 60: | ||
Packages="$(aptitude search ~i~nlinux-image- --display-format '%p' | grep -ve 'openvz')" | Packages="$(aptitude search ~i~nlinux-image- --display-format '%p' | grep -ve 'openvz')" | ||
| − | sudo apt-get remove $Packages | + | sudo apt-get --autoremove remove $Packages |
| − | + | ||
| + | (requires aptitude) | ||
= Download OS templates = | = Download OS templates = | ||
| Line 75: | Line 78: | ||
sudo vztmpl-dl --gpg-check debian-8.0-x86_64-minimal | sudo vztmpl-dl --gpg-check debian-8.0-x86_64-minimal | ||
| − | + | Alternatives: | |
| + | * 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. | ||
| + | * '''[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 = | = Next steps = | ||
Latest revision as of 09:25, 28 January 2020
This is a guide to install OpenVZ 6 (legacy) on your Devuan 1 "Jessie" or Debian 8 "Jessie" machine (both amd64 or i386).
Current commercial version of OpenVZ (Virtuozzo 7) is not installable on Devuan or Debian because is developed as an independent GNU/Linux distribution
Contents
Volumes and file systems[edit]
- It is recommended to use a separate partition for containers (by default /var/lib/vz) and format it to ext4.
- btrfs mounted filesystems cannot be formatted with modern features as: mixed-bg, extref, skinny-metadata, no-holes (More details).
Change Systemd to SystemV[edit]
Only needed for Debian (Devuan already works with SystemV by default). Warning: This operation can make some desktop software to stop working.
sudo apt-get install sysvinit-core sysvinit-utils # Must boot with SystemV to release Systemd sudo reboot sudo apt-get --autoremove remove systemd echo -e 'Package: *systemd*\nPin: release *\nPin-Priority: -1\n' | sudo tee /etc/apt/preferences.d/avoid-systemd
- More recipes at without-systemd.org
Register OVZ updated repository[edit]
RepoFile=/etc/apt/sources.list.d/openvz.list RepoUrl=http://download.openvz.org/debian echo "deb $RepoUrl jessie main" | sudo tee "$RepoFile" echo "#deb $RepoUrl jessie-test main" | sudo tee -a "$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 update
|
Note: The second line with jessie-test is commented out. This is a testing repo with newer kernels and possibly tools. Enable it if you want to stay on a bleeding edge of technology. |
For more info about Debian repositories, see http://download.openvz.org/debian
Install packages[edit]
KPackage="linux-image-openvz-$(dpkg --print-architecture)" sudo apt-get --install-recommends install $KPackage vzdump ploop initramfs-tools if [ ! -d /vz ] ; then sudo ln -s /var/lib/vz/ /vz ; fi
- Create file /etc/vz/vznet.conf with the following line:
EXTERNAL_SCRIPT="/usr/sbin/vznetaddbr"
- Optionally you can set containers completely stop when service stops at /etc/vz/vz.conf
VE_STOP_MODE=stop
- Only Devuan: link to be recognised as Debian
if [ -f /etc/devuan_version ] ; then sudo ln -s /etc/devuan_version /etc/debian_version ; fi
Reboot into OpenVZ kernel[edit]
|
|
Note: At boot manager, in "Advanced options for Devuan GNU+Linux", you will find kernels named "2.6.32-openvz". Select the first listed. |
sudo reboot
Check the OpenVZ processes are running:
sudo ps ax | grep -v 'grep' | grep 'vzmond'
Set OpenVZ as default to boot[edit]
Because of GRUB2 default criteria, default kernel to boot can still be the one from Devuan's repository (non OVZ). Probably you don't want this behaviour; once you've booted fine into OpenVZ kernel, you can remove other unuseful kernels:
Packages="$(aptitude search ~i~nlinux-image- --display-format '%p' | grep -ve 'openvz')" sudo apt-get --autoremove remove $Packages
(requires aptitude)
Download OS templates[edit]
This step is optional, vzctl is able to download templates on demand.
An OS template is a GNU distribution for Linux, installed into a container and then packed into a gzipped tarball. Using such a cache, a new container can be created in a minute.
OpenvzKey="$(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
Alternatives:
- Download precreated template caches from Download » Template » Precreated or from one of the mirrors. Put those tarballs as-is (no unpacking needed) to the /vz/template/cache/ directory.
- 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[edit]
OpenVZ is now set up on your machine. Follow on to basic operations in OpenVZ environment document.
See also[edit]
- Installation on Debian 7 very-old-stable (Wheezy, SystemV by default)
- Installation on Debian 9
