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Re: grub2 confuses Windows Vista/7 with Windows Recovery Environment


From: Jonathan Winterflood
Subject: Re: grub2 confuses Windows Vista/7 with Windows Recovery Environment
Date: Wed, 24 Nov 2010 00:25:35 +0000

See https://bugs.launchpad.net/ubuntu/+source/os-prober/+bug/476625

I shall stop mentioning it on this list now.
--
Jonathan


2010/11/23 Jonathan Winterflood <address@hidden>
@Vladimir

Not a GRUB but os-prober problem and we don't maintain os-prober.
Bugreport is invalid

I see, I didn't realize os-prober was a separate program.
I'll refer to them; Thanks for the pointer, and sorry for the noise!
Have you already told them about it maybe? (since it affects grub...)

@Donald
Thought you might want to be in the loop in case it got fixed :)

Cheers,
--
Jonathan


2010/11/23 Vladimir 'φ-coder/phcoder' Serbinenko <address@hidden>

On 11/23/2010 10:37 PM, Jonathan Winterflood wrote:
>
>
>     Hi all,
>
> Having recently installed Ubuntu 10.10 on a machine alongside Vista, I
> noticed that grub (1.98+20100804-5ubuntu3) incorrectly detects the
> nature of my "Windows Recovery Environment" and "Windows Vista"
> partitions:
>
Not a GRUB but os-prober problem and we don't maintain os-prober.
Bugreport is invalid
> ### BEGIN /etc/grub.d/30_os-prober ###
> menuentry "Windows Vista (loader) (on /dev/sda1)" {
>     insmod part_msdos
>     insmod ntfs
>     set root='(hd0,msdos1)'
>     search --no-floppy --fs-uuid --set 64bce3a1bce36bcc
>     chainloader +1
> }
> menuentry "Windows Recovery Environment (loader) (on /dev/sda2)" {
>     insmod part_msdos
>     insmod ntfs
>     set root='(hd0,msdos2)'
>     search --no-floppy --fs-uuid --set bc3c53c13c5374fc
>     drivemap -s (hd0) ${root}
>     chainloader +1
> }
> ### END /etc/grub.d/30_os-prober ###
>
> The correct order is the opposite (Vista on sda2)
> Booting the 'wrong' one seems to boot the correct one fine, despite
> "drivemap -s (hd0) ${root}" being missing/added.
>
>
> This means that the computer's main user (not an experienced user)
> could get very confused and trash the whole system....
> I could recreate the entries as custom (as mentioned in a previous
> message on help-grub, see below), but then there would be two sets of
> Windows entries, which may be even more confusing....
>
> This seems to be a bug in os-prober to me, but a quick look at
> 30_os-prober has left me unable to diagnose where the problem is.
>
> It has been previously mentioned here (with apparently no recognition
> or de-qualification as a bug):
> 1) http://lists.gnu.org/archive/html/bug-grub/2010-11/msg00010.html
> 2) http://lists.gnu.org/archive/html/help-grub/2010-08/msg00022.html
> 3) http://lists.gnu.org/archive/html/help-grub/2010-09/msg00020.html
> re: http://lists.gnu.org/archive/html/help-grub/2010-09/msg00021.html
>
> I cannot see any mention of this on
> http://savannah.gnu.org/bugs/?group=grub either
>
> I would have a look at patching this myself, but by the time I've been
> pointed in the right direction, the person pointing might be able to
> just fix it...
>
>
> Best Regards,
> --
> Jonathan
>
>
> _______________________________________________
> Bug-grub mailing list
> address@hidden
> http://lists.gnu.org/mailman/listinfo/bug-grub
>


--
Regards
Vladimir 'φ-coder/phcoder' Serbinenko



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