Re: Hibarnation / lphdisk / Destroyed MBR (solved)
On Thu, 2003-02-13 at 00:50, mi wrote:
> Hi Nils Anders, Ceasr and whoever's interested !
Thanks a lot for the information. It is pretty much what I expected. I
think I won't bother with hibernation yet --not with BIOS hibernation
anyway. If my machine behaves as yours, I can reboot faster than a
suspend/resume cycle :-/
> Amazing was the comparison to the new-installed Win2000 (with an empty word
> doc ): 10 | 10.
> This is definiteley another mechanism, though.
> It doesn't show up the BIOS hibernation screen at all.
> Waking up by pressing the power button starts up grub as uusual !
> Then, after choosing Win2000 from the bootmenu,
> it reinitializes the session very quick (else needs about 3 minutes to come
> up).
> btw. In Win2000 there's is a menu chooser for hibernation which shows up the
> amount of free spacce on C: compared to the needed space for hib.
I'm almost sure that W2K implements hibernation in its kernel, bypassing
the BIOS. There is a project for doing the same on Linux:
http://falcon.sch.bme.hu/~seasons/linux/swsusp.html
There are a number of advantages with this approach:
- You couldn't care less if the BIOS supports hibernation, or does so
in a broken, stupid fashion (my laptop's case). Actually, you should
not even need APM/ACPI, except for powering down without user
intervention.
- You do not need to waste disk on a hibernation partition/file. It
uses the swap space for hibernation.
- Suspending/resuming is much faster: you do not need to write to disk
pages already swapped out, nor restore them on resume; and you do not
need to dump memory that is not in use.
The page includes patches for kernels 2.4.10 and 2.5.1 (among other,
older, versions). I don't know if it would work on a debianish 2.4.18
or 2.4.20, but I think I'll give it a go when I can spare some time.
That could mean a long wait, though; and it may not work at all, or
break other stuff. It still looks quite experimental.
Anyway, if someone tries it before (hint, hint, Michael :-), I would
*greatly* appreciate a full account of the adventure.
Best regards,
-CR
Reply to: