2014-12-01 12:40 GMT-06:00 <meino.cra...@gmx.de>: > Rich Freeman <ri...@gentoo.org> [14-12-01 19:16]: >> On Mon, Dec 1, 2014 at 12:46 PM, <meino.cra...@gmx.de> wrote: >> > What is the difference here? >> > Isn't it, that all shutdown applications only send some instructions >> > to the kernel and the kernel is the main actor in bringing the system >> > down? >> > >> >> About the only thing the kernel might have a role in is turning off >> the power. Almost all of the shutdown logic is in userspace and it >> isn't surprising that copying scripts between distros is going to >> cause issues since the whole service management component varies >> GREATLY across distros. Maybe if you're using systemd you could copy >> between distros since that is more standardized, but even then there >> can be differences. >> >> In a traditional sysvinit system usually shutting down is accomplished >> by changing runlevels, which immediately starts/stops anything in >> inittab (generally only gettys) and calls a script which does all the >> actual work. >> >> If the issue is that userspace shuts down fine but the system reboots >> instead of powering off that could be a couple of things which >> shouldn't be too hard to track down. An obvious question is whether >> the hardware even supports being powered off in the first place - this >> isn't an ATX motherboard. Powering off a system can sometimes be >> remarkably tricky depending on how standardized the platform is. I >> was reading an article on it a few years ago and I think linux >> actually implements several different mechanisms that get tried in >> series, with the final fallback being a halt without powering off. >> >> -- >> Rich >> > > Hi Rich, > > AH! :) Thanks for the informations! > > From what you say, it is a kernel problem, since the kernel > is the one who switches off the lights... > > But even if I use the same kernel as used for the Debian system > it does not work... > > May be shutdown says "power off the system" and the kernel understands > "reboot the system"? > I mean: In principle the kernel would be able to poweroff the system > but there are some communications difficulties with the guys from > userland? ;) > > Best regards, > Meino > > > I've always turned off across linux distros (BSD is other story) with:
# shutdown -hP now the help says : -h: halt after shutdown. -P: halt action is to turn off power. -H: halt action is to just halt. I've not seen you using the -P flag.
