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rubo77
Asked: 2014-07-03 10:47:51 +0800 CST

Is Ubuntu 14.04 using systemd?

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There was a lot of discussion about the init system for 14.04 before it was released, but I cannot find any site that explains the outcome finally.

So is Ubuntu 14.04 using systemd now?

14.04

3 Answers

  1. Best Answer

    Ubuntu 14.04 uses Upstart as the init system, the plan to switch to systemd is planned for 14.10+. There are parts of "systemd" that have been used in Ubuntu for a long time, but for most intents and purposes when people say "systemd" they mean systemd-as-init.

    Here's some background info:

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  2. To show what init process is enabled:

    # readlink /sbin/init

    By default on 14.04 and 14.10 it's "upstart"

    Changing this would involve alot more configuration than just changing this symlink so don't do that. This file is nearly always a simlink. In this case the link path does not start with / so this is a path relative to the symlink file to /sbin/upstart.

    To confuse matters systemd is installed for other things but not used as init. It is in /bin not /sbin. But systemd has installed itself as init in man / help, so:

    # man init

    Brings up docs on systemd (as of Dec 22, 2014) This is very confusing ! You want:

    # man upstart

    This will give you the docs for init as they should be.

    Good luck getting started. (pun ah ah)

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  3. If you are running Ubuntu vivid (15.04) upstart is still default, but, you can easily switch between upstart and systemd at will, since both packages are installed at present:
    https://wiki.ubuntu.com/SystemdForUpstartUsers

    In ubuntu 15.10 systemd is the default, but you still can choose upstart each boottime in the grub menu

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