On 07/02/2012 11:00:36 AM, Bill Davidsen wrote: > Mateusz Marzantowicz wrote: > > On 30.06.2012 23:32, Aaron Konstam wrote: > >> On Sat, 2012-06-30 at 08:36 -0700, Geoffrey Leach wrote: > >>> On 06/30/2012 03:51:45 AM, Mateusz Marzantowicz wrote: > >>>> On 29.06.2012 22:37, Geoffrey Leach wrote: > >>>>> This problem has been submitted to Bugzilla (836657), but I > thought > >>>> I'd > >>>>> ask here to see if there are any fixes lurking. > >>>>> > >>>>> System is running 3.4.3-1.fc17.x86_64. When I systemctl > poweroff > >>>> the > >>>> > >>>>> kernel reboots instead of powering off. Under Windows 7, power > off > >>>>> works as expected. All packages are up-to-date. > >>>>> > >>>>> Any ideas? > >>>> What about shutdown -h ? Does it work as expected? Then try halt > and > >>>> poweroff commands. > >>> It's my understanding that poweroff is a backwards-compatibility > >>> implementation of systemctl poweroff, which I have tried to no > avail. I > >>> should have mentioned that. It appears that halt is the same. > shutdown > >>> if a link to systemctl. Bottom line is that I would not expect > any > of > >>> these to be any different, but I live in hope and will report > back > if > >>> there's any difference. > >>> > >>> I should also mention that systemctl poweroff works fine on my > laptop > >>> running the 32-bit version of Fedora 16. > >>> > >>> One point, FWIW. Power off is essential for my application. > Merely > >>> halt-ing is no better than just leaving the system running. > >>> > >>> Thanks. I don't wish to seem ungrateful -:) > >>> > >>> > >> I disagree with the other posters. There is a magic related to > shutdown > >> poweroff and halt. If you look at the man pages you will find that > >> shutdown and poweroff have different options. It is clear that > when > >> systemctl is called under a different name it checks the name and > >> potentially reacts differently. For example poweroff by itself > will > >> shutdown the machine . systemctl called by itself will not. > > > > If you check source code with is more reliable then any man page > could > > ever be, you will find that there really is nothing magical. Please > see > > file src/systemctl/systemctl.c in systemd source tree. Commands > like > > halt, shutdown and power off call the reboot() function. I can > agree > > that argument to reboot() may change between this calls but it's > still > > the same function they're calling. > > > Source code shows what the source code says, testing shows what it > does. > > I have several systems which either reboot or drop to some zombie > mode > on > shutdown from the WM (GNOME3, XFCE, Cinnamon) and on all of them > "shutdowen -h" doesn't power off (as the man page says is optional) > while "shutdown -P" does. > > So there is a problem, and while I generally agree that no matter how > you get > the the system call it will do the same thing, clearly some user > interfaces do > not call powerdown as part of shutdown. > > Don't know if that makes it a system issue or a user inteerface > issue, > but > hopefully that tip will give people a way to really power the damn > thing off. > > Oddly, hibernate does power down on all those systems, although as > usual they > don't reboot cleanly. Alas, while shutdown -P says "The system is going down for power- off", it lies. poweroff -h fails to power off as well. Both reboot. Presumably poweroff (by either route) eventually communicates with the BIOS. Does anyone know if this is correct? -- users mailing list users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines Have a question? Ask away: http://ask.fedoraproject.org
