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Re: Boot Loader



From: "Vivek" <vivek@etla.org>

> On Mon, 29 Apr 2002, Derek Broughton wrote:
>
> > Cyn wrote:
> > > 3) I don't see what a boot loader has to do with hibernation -
resuming
> > > from hibernation isn't booting, it's resuming the computer to the
state it
> > > was in before suspend.
> >
> > It's still booting.  When you hibernate, the system powers off.  So then
you
> > have to be able to boot from that state into either Linux or Windows -
and
> > if windows, resume from hibernate.
>
> Uh, no - that doesn't sound like hibernation - hibernation is a nearly-off
> state - the bios dumps the memory+video -> disk, and then when you hit the
> power button (or whatever) it revives the hardware and zaps the data file
> back into memory+video. When I wake-from-hibernation, booting does not
> occur - the bootloader never gets a look in.
>
> There are other _similar_ solutions, that involve a frobbed kernel that
> knows how to cheat and reinitialise itself from a special swsupend file:
> but I don't think those are technically hibernation.

Technically?  Technically, what I described is what Windows does.  Which is
what the original poster was asking about.  It's also, afaik, what swsusp
does.  I haven't ever had a computer, laptop or desktop, that had a
suspend-to-disk that didn't take the computer to full power-off.
--
derek


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