acpi S4 resume partition

Daniel O'Connor doconnor at
Tue Jan 13 20:32:42 PST 2004

On Wednesday 14 January 2004 12:47, toxa wrote:
> Sorry for stupid question but I can't find good documentation about
> preparing system for hibernating with acpi.
> I mean, if I use acpiconf -s4 (suspend to disk) then system should to put
> all memory contest info physical partition and resume from it when booting
> by bootloader, shouldn't it? So I have to prepare such partition and tell
> system (probably using loader.conf) to use it for hibernating. Something
> like "resume=/dev/hda2" in lilo.conf in linux. Am I right? Because for now
> acpiconf -s4 puts my system into shutdown/sleep, and, when I powering on,
> it boots into new session, with "partitions was unproperly unmounted"
> errors.

In principle, yes..
However there is no support in FreeBSD for suspending to disk so you are out 
of luck..

In theory your BIOS could support S4BIOS which means it does most of the work, 
but I don't think anyone has ever had that work either.

Daniel O'Connor software and network engineer
for Genesis Software -
"The nice thing about standards is that there
are so many of them to choose from."
  -- Andrew Tanenbaum
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