Re: two issues with suspend to disk in Suse 10.2

On 5/1/07, Wilfried Maschtera <[email protected]> wrote:
> On Tue, May 01, 2007 at 02:04:30PM +0200, Martin Hofius wrote:
> > Am Dienstag, 1. Mai 2007 12:03 schrieb Pramod:
> > > Hi,
> > > I have a Samsung X20 notebook with Suse 10.2 installed and I use KDE.
> > > I have a couple of problems I would like to solve.
> > >
> > > 1) I would like to have the option of suspending Linux and resuming
> > > Windows and vice versa
> > > without booting either OS (as it used to be with Suse 10.0). At the
> > > moment the default for
> > > Linux is the session from which the suspend is called. So it resumes
> > > to Suse by default. How can I make Grub give me the choice I want? It
> > > looks like (to me, a non-expert) in /etc/pm/hooks/99Zgrub Linux is set
> > > as the default using grubonce.
> >
> > Hi Pramod,
> > sorry I have no other useful hints, but:  are Your shure to know what You are
> > doing??? I remember the choice after suspend was disabled by SuSE to prevent
> > the destroying of Your data...
> > When one of the both systems is suspended, also the state information of the
> > file systems are saved. If You would start an other system and change files
> > in that filesystem, You may image what happens?
> > If it was possible in SuSE 10.0 I gues it was a bug!?!
>
> Why should it be a bug? In my opinion if the state information of the
> systems are stored in different locations suspending one system and
> resuming another one is not risky but of course you should mount files
> from a suspend system read/writeable. I think, windows will not use
> the linux swap.
>
> Sometimes I suspend my linux and boot windows and then resume linux
> again. Up to now I had no problems. Indeed I assume you can have
> several linuxes and do the same provided each linux has its own swap
> partition.
>
> Kind regards, Wilfried
>

Hi,
Thanks for the responses. In Suse 10.0, I had edited
/etc/sysconfig/powersave/common
and changed BOOT_LOADER="" to BOOT_LOADER="NONE". So yes, this was not
enabled in the default installation. However, I never had problems
with the file system.
I also had fat32 partitions mounted and both Linux and Windows were happy with
this arrangement (at least for whatever I did, I never made extensive
tests). Can't the two
system save to different swaps as Wilfried suggested and share the
file information via
a common file system? Perhaps there is a problem if there are same
files which are
open in both and not saved?
The advantage of being able to do this (suspending one OS and resuming
another) is
enormous for people wanting to try out Suse and not fully comfortable
with it. And also
for people like me...my wife sometimes want to use Yahoo messenger and
we both have
many apps open in Linux which we don't want to shut and restart.
  Thanks and best regards,
  Pramod