acpi S4 resume partition

Dan Nelson dnelson at
Fri Jan 16 08:49:13 PST 2004

In the last episode (Jan 16), Daniel O'Connor said:
> On Friday 16 January 2004 18:21, Mark Santcroos wrote:
> > > it boots into new session, with "partitions was unproperly unmounted"
> > > errors.
> >
> > This looks good. However, when you power your machine on again, you
> > have to tell it to boot from the suspend partition, and not from
> > your normal boot partition. This is at least how it works on my
> > laptop (Dell).
> I added some stuff to /etc/rc.suspend to run boot0cfg to change my
> default boot partition (and to /etc/rc.resume to change it back to
> FreeBSD)
> Basically boot0cfg -s X /dev/ad0

So S4BIOS does only the first half of the job, or is there some magic
BIOS/ACPI call FreeBSD can do to make this happen automatically?  I
can't believe Windows modifies the MBR on suspend...

	Dan Nelson
	dnelson at

More information about the freebsd-current mailing list