[SATLUG] How to fix a broken grub boot after Window 7 upgrade

Ernest De Leon edeleonjr at gmail.com
Wed Apr 7 16:11:05 CDT 2010


Here is a link I found to help you out.
http://www.iceflatline.com/2009/09/how-to-dual-boot-windows-7-and-linux-using-bcdedit/

Ernest

On Wed, Apr 7, 2010 at 4:08 PM, Ernest De Leon <edeleonjr at gmail.com> wrote:

> You have two options with Win 7 to modify the boot loader. You can run the
> command prompt as administrator and use the bcedit command if you want to go
> the hardcore CLI route, or you can download EasyBCD which provides a gui to
> do the same thing. Very easy. You will just have to know what partition
> Ubuntu is sitting on so that you can point the new entry in the BCD to that
> partition.
>
> Ernest
>
>
> On Wed, Apr 7, 2010 at 3:58 PM, Dylan Nelson <cold2na at gmail.com> wrote:
>
>> I am using 9.1 Ubuntu. Can the Windows boot loader boot ext4? Or mount it?
>> Google and Ubuntu forums giving me nothing. And would I do the mounting
>> inside the live OS. I would rescue it pretty much the same way from rescue
>> mode if it was the option. Also, GParted can't do any this with just
>> clicking a flag on the original boot partition?
>>
>> On Wed, Apr 7, 2010 at 3:40 PM, Jeremy Mann <jeremymann at gmail.com> wrote:
>>
>> > On Wed, Apr 7, 2010 at 4:35 PM, Dylan Nelson <cold2na at gmail.com> wrote:
>> > > My computer is a dual booted Win / Ubuntu. I did a windows 7 upgrade
>> from
>> > > vista and it removed the grub boot option. I know that I can load a
>> live
>> > cd
>> > > and try to rescue it from there. However, all the live cds I have tell
>> me
>> > > that option is not included on the cd and that I should boot to the
>> live
>> > OS
>> > > and do work from within. How can I rescue my linux partition from
>> > > Microsoft?
>> > > Dylan
>> >
>> > Which Live CD are you using? If you know what partition your Ubuntu is
>> > on you can do:
>> >
>> > mkdir /mnt/image
>> > mount /dev/hdaX /mnt/image
>> > grub-install --root-directory=/mnt/image /dev/hda
>> >
>> > This will reinstall the Grub boot sector.
>> >
>> >
>> >
>> > --
>> > Jeremy Mann
>> > jeremy at biochem.uthscsa.edu
>> >
>> > University of Texas Health Science Center
>> > Bioinformatics Core Facility
>> > http://www.bioinformatics.uthscsa.edu
>> > Phone: (210) 567-2672
>> > --
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