Reactivate grub/edit boot partition used separate partition.

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I used to have windows and Ubuntu operating system installed on separate partitions where I had grub and I could choose the operating system. Now after I reinstalled windows, grub does not come up anymore.

I still have Ubuntu on the other partition. 

Is there any way to choose the partition and I want to reactivate grub/edit boot partition?

What is the way  to do I can boot into Ubuntu instead of windows?

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Best Answer by taylor shaw
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Answered By 0 points N/A #118468

Reactivate grub/edit boot partition used separate partition.

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You need to reinstall the Ubuntu for you to be able to reactivate your grub boot partition, but you can also try to restore your GRUB by using your installation or Live CD without under going to root access again.

Here’s how to reactivate your GRUB:

  •  You can boot your system by using your Live CD or DVD. Start making a root shell by going to “Applications” then “Systems Tools” and “Root Terminal”
  • Use this to create a folder: mkdir /mnt/ubuntu
  • Now look on your Ubuntu Partition then fdisk-I or /dev/hda4
  • Increase the root partition of your Ibuntu by commanding this mount -t ext3 /dev/hda4 /mnt/ubuntu
  • Chroot  the mounted or increased partition like this:chroot /mnt/ubuntu
  • Install again  GRUB by commanding this grub-install /dev/had
  • Close the “Root Shell” and then Reboot
  • After rebooting, restart your personal computer or laptop.
Answered By 0 points N/A #118470

Reactivate grub/edit boot partition used separate partition.

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Hi Jakipaul.

Yes, that's what happens when you install Windows.  I'm afraid Windows does not play well with other operating systems and assumes it is the only operating system that you want to install.

  • As the first post suggested, you can use the Ubuntu LiveCD to reinstall grub.  As an alternative, I suggest you try EasyBCD version 2.1 (http://neosmart.net/EasyBCD/).  It's free.
  • Here's a guide on how to setup dual-booting Windows Vista and Linux using EasyBCD.  There is even a section where Vista was installed after Linux (sound familiar?):  http://neosmart.net/wiki/easybcd/dual-boot/linux/
  • The nice thing about EasyBCD is you can set up your PC to dual-boot using Windows Boot Manager instead of grub (Linux bootloader).

Happy dual-booting!

 
Answered By 0 points N/A #118472

Reactivate grub/edit boot partition used separate partition.

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You may go for following options to get your solution fast:

It’s possible to change the active partition through booting from a floppy disk and using disk utilities to manually change the active partition.
 
If enough free space is available on your hard disk, you can install Windows to one of the parallel directories. After the parallel installation is complete, you can also use the Disk Management snap-in to have a change in the active partition.
 
If the partition that has been incorrectly marked as active, is a FAT, FAT32, or NTFS partition, you can correct the problem by using the Windows Recovery Console (WRC).
 

 

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