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
