reformatting laptop & ACPI: special partitions?

Carsten Zimmermann cz at aegisnet.biz
Mon May 10 15:09:56 PDT 2004


Hello,
                                                                                
afaik, FreeBSD is unable to do a "software suspend-to-disk" (std), yes. 
However, I remember it supports handing the s.t.d. over to the system 
bios if your `sysctl hw.acpi.s4bios` is "1". To achieve that, you have
to have your hibernation partition configured. You can then s.t.d. using
`acpiconf -s 4`.
                                                                                
I haven't tried it yet because (and here comes the other advise) the
tool which creates the hibernation-partition ("HDPREPEZ") needs to
reside in the first 8 GBs of the disk. Unfortunately, this is where
FreeBSD is sitting and I was too lazy to move my F'BSD installation so
far. So, just to answer the question "where?": at the beginning. Dunno
what partition type, I recommend using your BIOS manufacturer's software
tools.
                                                                                
Carsten


Am Tue May 11, 2004 at 01:2833AM +0400 schrieb Toxa:
> Hello Michael,
> 
> Monday, May 10, 2004, 9:27:51 PM, you wrote:
> 
> 
> MAS> As I recall, when I got the laptop, it did NOT have any special 
> MAS> partitions (I wiped it the day that I got it and installed FreeBSD).
> 
> MAS> Any suggestions would be helpful. Thanks!!
> 
> 
> As far as I know, FreeBSD currently is unable to suspend to disc, as I
> can't find any notes where to tell it about suspend/resume partition (I
> wish it to be like "acpi_resume=/dev/ad0s3" in loader.conf, for example).  Correct me if I am wrong.
> But you can try suspending to RAM, however, currently my vaio laptop goes to
> bed happily but it can't wakeup after it, so I'm unhappy with
> suspending at all.
> Really, there is great lack of documentation about suspending to disc
> in freebsd.
> 
> 
> -- 
> Best regards,
>  Toxa                            mailto:postfix at sendmail.ru
> 
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-- 
Carsten Zimmermann
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