On Mon, Sep 13, 2010 at 2:14 PM, Lennart Poettering <[email protected]> wrote: > On Wed, 08.09.10 20:14, Gustavo Sverzut Barbieri ([email protected]) > wrote: > >> >> On Wed, Sep 8, 2010 at 7:16 PM, Lennart Poettering >> <[email protected]> wrote: >> > On Wed, 08.09.10 11:24, Gustavo Sverzut Barbieri ([email protected]) >> > wrote: >> > >> >> Hi all, >> >> >> >> Seems that sysvinit provides INIT_VERSION=sysvinit-1234 to its spawned >> >> processes and tools like /sbin/halt check for it to just then check >> >> for $RUNLEVEL so I wonder if we should provide this in systemd >> >> automatically or I should change my .service units to provide them >> >> with Environment=INIT_VERSION=sysvinit-1234 >> > >> > I think the latter is nicer. After all we aren't sysvinit, so I'd prefer >> > not to claim we were in the C sources. Also note that at least in the >> > Fedora shutdown scripts we already set RUNLEVEL=0 via the Environment= >> > option, so if INIT_VERSION is necessary it probably makes sense to place >> > it in Environment= too. >> >> Yeah, I have those in my units, but it will suck as we'll have to do >> replacement of systemd-$PACKAGE_VERSION.... or just stick some random >> variable there, as sysvinit just check for variable existence but not >> actual value. >> >> Anyway, maybe it's better to just ignore it and go straight with >> systemd-native actions. Would you mind sharing your ideas about them? >> Maybe I can help there as well. > > I figure you are aware that symlinking /sbin/reboot and friends to > /bin/systemctl gives you systemd native implementation of these tools?
I was not aware... maybe because I still have sysvinit tools and they are the ones there. > Our rough plan for the long run for the implementaiton of late shutdown > is to provide /lib/systemd/systemd-halt or so which will be exec'ed by > PID1 in the end. This binary will then kill all remaining processes, > unmount all fs, mount remaining fs r/o and then shutdown or kexec. > > The approach is kinda nice since we then avoid busy mmaps, and PID 1 is > the first and last process of the system. This seems like a good approach, I'll try to come with a systemd-halt whenever times allow :-) -- Gustavo Sverzut Barbieri http://profusion.mobi embedded systems -------------------------------------- MSN: [email protected] Skype: gsbarbieri Mobile: +55 (19) 9225-2202 _______________________________________________ systemd-devel mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/systemd-devel
