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View Full Version : [all variants] Problem with Grub and Bootmngr after dualbooting Ubuntu and Windows 7


Maupertus
July 6th, 2009, 08:20 AM
Hey everyone,

As my university refuses to adopt a decent wireless network security that can be handled in a easy way by linux, I thought I would try to dual-boot windows 7 on my netbook.

Installation went smoothly. But I can't seem to get to boot into windows anymore.
I've modified GRUB by looking in gparted. There are 2 windows partitions one on sda3 and another on sda4. I've tried both partitions in GRUB (hd0,3) (hd0,4).

sda4 gives me a message on 'Invalid Device'
Whilst sda3 gives me a bootmgr message.

What's the best way to move forward?
Herman
July 6th, 2009, 12:23 PM
I've modified GRUB by looking in gparted. There are 2 windows partitions one on sda3 and another on sda4. I've tried both partitions in GRUB (hd0,3) (hd0,4).
Try (hd0,2) if you're using GRUB Legacy, as most people would be at this time.
Here's a link to a table for converting between Linux and GRUB (legacy) notation, A Quick Guide to GRUB's Numbering System (http://members.iinet.net.au/%7Eherman546/p15.html#A_Quick_Guide_to_Grubs_Numbering_System).

Regards, Herman :)
gemini6
July 6th, 2009, 07:06 PM
Did you resize your windows partition during installation? If so this link may help http://www.howtogeek.com/howto/windows-vista/using-gparted-to-resize-your-windows-vista-partition/
Maupertus
July 8th, 2009, 10:13 AM
Try (hd0,2) if you're using GRUB Legacy, as most people would be at this time.
Here's a link to a table for converting between Linux and GRUB (legacy) notation, A Quick Guide to GRUB's Numbering System (http://members.iinet.net.au/%7Eherman546/p15.html#A_Quick_Guide_to_Grubs_Numbering_System).

Regards, Herman :)

Worked like a charm! Thank you Herman. ):P
Herman
July 9th, 2009, 10:13 AM
:) Cool!
... and what kind of wireless networking are you using?
I'm not an expert on networking, but you never know, maybe I or else someone around here can help you with that too? :)
Maupertus
July 9th, 2009, 10:59 AM
Nah, for some reason they use a terribly inefficient way to secure the network.
You can find the manual here (http://www.rug.nl/cit/servicedesk/hulp/draadloos/handleidingubuntulinux_en.pdf) but it just won't work at all.