> > > PWR n/a exit (normal systems would ignore by default)
> > I don't think so; SIGPWR sent to init means it should shut down the
> > system as soon as possible. If init dies, the system gets uncleanly
> Not exactly. SIGPWR is a "Power Restored" in SYS5 unix such as the NCR
> tower. This is quite a common confusion.
> The way NCR use it for example on the old towers is that the box has
> a battery (a big one), when the power goes off it switches to battery
> and hibernates. This works well - we've carried machines between floors
> without rebooting.
This should be doable with linux and suspend patches. Yes, linux is
now able to hibernate itself with suitable patches.
As a side note, please DON'T recycle SIGUNUSED unless you really have
to. Suspend patches are using it ;-).
-- I'm really email@example.com. Pavel Look at http://atrey.karlin.mff.cuni.cz/~pavel/ ;-).
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