1

I noticed in somewhere that most of the Linux distro are based on Systemd instead of SysV init.

So I just want to know without installing and booting. Is there any possible way to find distro based on Systemd or SysV init ?

  • Read the homepage of the distribution. – Ipor Sircer May 8 '18 at 15:14
  • Old but potentially useful: unix.stackexchange.com/q/18209/117549 – Jeff Schaller May 8 '18 at 16:09
  • An erroneous assumption underpinning this question is that distributions can only include one or the other, not both, nor other things entirely; and that no distribution exists where this is an installation, or post-installation, choice amongst several alternatives. – JdeBP May 9 '18 at 11:07
4

On distrowatch.com you can search for distributions using the init system as a criterion. You can even select "not systemd".

  • 1
    Thanks, I asked someone a similar question, this is a great way to get a list. Be aware that both "not systemd" and "systemd" are selecting Linux Mint as #1/#2 , for example. I think it's because the 17.x series is still in support and does not require systemd, based on this comment. So I guess you still have to double-check before you install. – sourcejedi May 17 '18 at 9:42
2

Check for the existence of the characteristic configuration files and administration tools of each init system.

If /etc/inittab does not exist, then the init system is definitely not SysVinit. If it exists but has only one non-comment line, and the comments are saying "this is only used for specifying the default runlevel, nothing else will have any effect", the init system might be upstart.

If /etc/init/ is a directory, then the system configuration at least provides the option to use upstart.

If directories like /usr/lib/systemd/system, /lib/systemd/system and/or /etc/systemd/system exist, the system at least has the configuration files for systemd.

If initctl list as root produces a list of processes controlled by the init system, upstart is definitely in use.

If systemctl status displays a list of running system services (you don't even have to be root to run it!), systemd is definitely in use.

If /etc/inittab exists and neither initctl list nor systemctl status works, then it looks like SysVinit.

If /etc/inittab exists and it is having this line inittab is no longer used when using systemd. then it systemd only.

  • Now see unix.stackexchange.com/a/196252/5132 for the unwarranted assumptions that these involve. (-: Also note that the questioner explicitly asked about how to do this without bootstrapping the system in question and running programs on it. – JdeBP May 9 '18 at 10:55
  • Oops. I plead -ENOCOFFEE. – telcoM May 9 '18 at 13:03

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.