Can't see Windows 7 in grub 2

[manzur]

i installed ubuntu 9.10 alpha 2 - karmic koala and after i reboot windows 7 is not there, Nevertheless i can access windows folders with nautilus, please fix it, this is horrible

[Markus Pfeiffer (markus-pfeiffer)]

This is from the "Known Issues" of the Alpha 2 release:

"Due to the conversion to GRUB2, installation will fail if you try to install Karmic Alpha 2 on a system with other OSes installed. This will be fixed for Alpha 3. As a workaround in the meantime, you can choose to use GRUB1 instead by booting with the option: grub-installer/grub2_instead_of_grub_legacy=false. (385995)"

I guess this issue is related to it. The same happened on my test machine, Windows 7 RC is no longer "available" after installation of Karmic Alpha2 (which does not come entirely unexpected, since I did happen to read the Known Issues before installation ;).

See also: https://bugs.launchpad.net/ubuntu/+source/grub-installer/+bug/385995

[Steven Harms (sharms)]

Please retest on Alpha 6 and see if this issue still occurs.

[SabreWolfy (sabrewolfy)]

I can confirm that in Karmic Beta GRUB2 identifies Windows XP during the last steps of the install but does not add it to the GRUB2 menu on boot. Manually running grub-mkconfig later then adds the Windows entry. Potentially devastating to some users who will think that Ubuntu deleted Windows.

[Cristian Tala (naito-neko)]

Have the same problem with The Last 9.10. I cant get Windows7 to be recognize by grub.

[Stig Bjørge (stig-bjorge)]

Same here.. Worked fine until now though. After reboot today, the Windows7 entry was gone from the grub2-menu, and the grub os-prober can't seem to find W7..

[mark (mark-voidzero)]

With me it's a bit more complex. I have installed Ubuntu on sda; Windows Vista on sdb1 and Windows 7 RC on sdc1. Though it does recognize Windows 7, it does not recognize vista:

Generating grub.cfg ...
Found linux image: /boot/vmlinuz-2.6.31-14-generic
Found initrd image: /boot/initrd.img-2.6.31-14-generic
Found memtest86+ image: /boot/memtest86+.bin
Found Windows 7 (loader) on /dev/sdc1
done

[Felix Zielcke (fzielcke)]

Am Mittwoch, den 04.11.2009, 21:01 +0000 schrieb Marckus D.:
> With me it's a bit more complex. I have installed Ubuntu on sda; Windows
> Vista on sdb1 and Windows 7 RC on sdc1. Though it does recognize Windows
> 7, it does not recognize vista:
>
> Generating grub.cfg ...
> Found linux image: /boot/vmlinuz-2.6.31-14-generic
> Found initrd image: /boot/initrd.img-2.6.31-14-generic
> Found memtest86+ image: /boot/memtest86+.bin
> Found Windows 7 (loader) on /dev/sdc1
> done

If you didn't disconect your Vista drive when you installed 7 then the
Windows Setup didn't install a second copy of the bootloader but
replaced the Vista one with the newer 7 and kept the menuentry for
Vista.
Just boot it and you should see.

--
Felix Zielcke
Proud Debian Maintainer and GNU GRUB developer

[meace1234 (meace1234)]

I have Win7 and XP on a dual boot and they fight over the mbr...already..
and I wanted to go to triple boot with Ubuntu 9.10
but am reading that grub2 is fighting over the mbr
as well and the known work arounds for grub1
dont work on grub2.

Is there an official way to retrieve the grub2 piece
when I later reload XP and or Win7 later?
(not that I dont enjoy reloading everything everytime.. but...)

[meace1234 (meace1234)]

I have the Win7 XP mbr war under control for now and simply loaded Ubuntu 9.10 into an ntfs partition as a (free) Sun Virtual Box. Thats obviously slower and not exactly where I hope to get to. But a workaround til someone has a better grub2 solution for the multibooters...

[Launchpad Janitor (janitor)]

[Expired for grub2 (Ubuntu) because there has been no activity for 60 days.]