<tt>Peter Sztan <sztanpet@gmail.com> wrote on 03/12/2015 09:33:38 AM: > From: Peter Sztan <sztanpet@gmail.com></tt> <tt>> To: Aaron_Wright@selinc.com</tt> <tt>> Cc: systemd Mailing List <systemd-devel@lists.freedesktop.org></tt> <tt>> Date: 03/12/2015 09:33 AM</tt> <tt>> Subject: Re: [systemd-devel] minimal required units</tt> <tt>> > Sorry for the noise, I have now read that you have already seen it. > </tt> <tt>Just for illustration purposes, here are few units listed in systemd.special, that I don't feel like I need, but which I'm left wondering if systemd needs them:</tt> <tt>cryptsetup.target</tt> <tt>display-manager.service</tt> <tt>getty.target</tt> <tt>graphical.target</tt> <tt>hibernate.target</tt> <tt>hybrid-sleep.target</tt> <tt>halt.target</tt> <tt>initrd-fs.target</tt> <tt>kbrequest.target</tt> <tt>multi-user.target</tt> <tt>network-online.target</tt> <tt>poweroff.target</tt> <tt>remote-fs.target</tt> <tt>initrd-root-fs.target</tt> <tt>runlevel*.target</tt> <tt>sigpwr.target</tt> <tt>sleep.target</tt> <tt>suspend.target</tt> <tt>swap.target</tt> <tt>(and so on)</tt> <tt>I can't tell from systemd.special if these are required or not.</tt> <tt> > On Thu, Mar 12, 2015 at 5:32 PM, Peter Sztan <sztanpet@gmail.com> wrote: > > man 7 systemd.special > > > > On Thu, Mar 12, 2015 at 4:41 PM, <Aaron_Wright@selinc.com> wrote: > >> Andrei Borzenkov <arvidjaar@gmail.com> wrote on 03/11/2015 08:47:43 PM: > >> > >>> From: Andrei Borzenkov <arvidjaar@gmail.com> > >>> To: Aaron_Wright@selinc.com > >>> Cc: systemd-devel@lists.freedesktop.org > >>> Date: 03/11/2015 08:47 PM > >>> Subject: Re: [systemd-devel] minimal required units > >>> > >>> В Wed, 11 Mar 2015 12:02:29 -0700 > >>> Aaron_Wright@selinc.com пишет: > >>> > >>> > I'm trying to make an embedded device, and I would like to start with > >>> > the > >>> > minimal setup as possible. Are there some units that are required by > >>> > systemd? > >>> > I ask because systemd is complaining about a missing rescue.target unit, > >>> > >>> When does it do it? > >> > >> It was doing this because my default unit was not set correctly. But that > >> isn't really the question. The question is, what units are required by > >> systemd? How can I figure that out? It seems like rescue.target, > >> local-fs.target, and local-fs-pre.target are required, but I've only > >> discovered that after trial and error. I know the systemd.special man page > >> lists a ton of special units, but it seems that not all of them are > >> required. Right? Well, which ones are? I feel like I need to look through > >> the code to see when a hardcoded unit is referenced, like > rescue.target was, > >> that I don't know about. > >> > >> My device doesn't have many of the same requirements of a full desktop or > >> server Linux, so I'm trying to strip out things from systemd, unit wise, > >> that I don't want or need. I've customized sysinit.target and basic.target > >> to just reference the units I want. And that seems to be going smooth, but > >> it appears there are other units, that I didn't know about that are > >> required, but that aren't documented as such (that I could find). This > >> scares me a bit. > >> > >>> > >>> > but I don't list rescue.target as a dependency of any other unit. > >>> > However, grep tells me that /usr/lib/systemd/systemd contains the > >>> > "rescue.target" string, which worries me. Is there a list of all the > >>> > units > >>> > that are required, even though no other unit lists them? > >> > >> _______________________________________________ > >> systemd-devel mailing list > >> systemd-devel@lists.freedesktop.org > >> </tt><a href="http://lists.freedesktop.org/mailman/listinfo/systemd-devel"><tt>http://lists.freedesktop.org/mailman/listinfo/systemd-devel</tt></a><tt> > >> </tt>