Booting another system after suspending to disk ?

English Install/Boot/Login
#1

Hi !
i’m using the suspend to disk feature, but when we reboot after suspending to disk, grub automatically boots openSuse again …

I have a multiboot with windows xp, and i would like to quickly switch between the 2 systems, by using suspend to disk on both.

Is it possible to prevent the automatic boot of openSuse after it suspends to disk ?

thanks

#2

up,
thanks

plz if you know how to tweak the s2disk behaviour …

#3

I’ve also looked a long time for this feature and found finally a workaround.

Note: it may be dangerous!

  1. when you suspend to disk your current memory image is fully saved into your swap disk; if by error or mistake you reuse your swap by other OS - your initial resume will be broken and you may lose a part of your data!

  2. to prevent this possible mistake, hibernate procedure before suspend will update your GRUB setting in way when you power-on your desktop you go directly to resume and not leave you any other choice…

The workaround: just to disable this last step (leave GRUB as it).

All you need is to open as ‘root’ user the ‘/usr/lib/pm-utils/sleep.d/99Zgrub’ file, go to the end of the file, and put comments before ‘prepare-grub’ and ‘grub-once-restore’:


###### main()

case $1 in
        hibernate)
                prepare-grub
                ;;
        thaw)
                grub-once-restore
                ;;
esac

Change to:


###### main()

case $1 in
        hibernate)
####                prepare-grub
                ;;
        thaw)
####                grub-once-restore
                ;;
esac

And enjoy :slight_smile:

Rgds,
-dim

#4

On Fri, 22 Aug 2008 10:26:01 GMT
dim7 <dim7@no-mx.forums.opensuse.org> wrote:

>
> I’ve also looked a long time for this feature and found finally a
> workaround.
>
> Note: it may be dangerous!
>
> 1. when you suspend to disk your current memory image is fully saved
> into your swap disk; if by error or mistake you reuse your swap by other
> OS - your initial resume will be broken and you may lose a part of your
> data!

Wouldn’t it be easier to just not share the swap partition between operating
systems? Give each operating system it’s own swap partition, then you can
hibernate/suspend each one, and ‘pop’ into another OS quickly as it restores
from it’s own saved state.

Loni

–
L R Nix
lornix@lornix.com
But it was RIGHT here…!

#5

Wouldn’t it be easier to just not share the swap partition between operating
systems? Give each operating system it’s own swap partition, then you can
hibernate/suspend each one, and ‘pop’ into another OS quickly as it restores
from it’s own saved state.

It’s what I always do :slight_smile:
I never seen such behavior before move to openSUSE :slight_smile:

Probably such solution was applied due numerous user errors? - I don’t know, and, honestly - I’ll prefere to have a checkbox during hibernate and just to say want you boot or not another OS on resume…

But well, until you know what you’re doing - you’ll always find a workaround :slight_smile:

Rgds,
-dim

#6

I’ve added all this info into wiki: Suspend to disk - openSUSE

I’ve found another point why there is no GRUB menu after hibernate: by default SUSE is not taking care about any mounted partitions!