Recover Ubuntu boot loader after Windows 8.1 installation

Asked Jun 23 '15 at 16:29

Active Jun 24 '15 at 19:48

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I've installed Windows 8.1 after Ubuntu 15. Now there is only one bootable OS and that is Windows 8.1. How can I recover Ubuntu 15 boot loader?

edited Jun 24 '15 at 19:48

thesdog

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asked Jun 23 '15 at 16:29

Milad Rahimi

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possible duplicate of Dual boot windows 8 and Ubuntu with Windows 8 Boot manager – luckyrumo Jun 23 '15 at 17:03
Are both installed in UEFI boot mode or both installed in BIOS boot mode? And which boot mode is it? – oldfred Jun 23 '15 at 17:35
I think this thread might http://askubuntu.com/questions/88384/how-can-i-repair-grub-how-to-get-ubuntu-back-after-installing-windows get you with some idea. – BDRSuite Jun 23 '15 at 17:38

2 Answers2

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You can use boot-repair.

Create an Ubuntu LiveCD or LiveUSB
Boot into it.
Install the program boot-repair onto the CD or USB.
Launch Boot Repair and choose the default repair. It should work fine.

(There is also a more complex method available which involves chrooting into your system, but I personally prefer this one.)

This should work. Just ask if you need any more help :)

answered Jun 23 '15 at 17:37

thesdog

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To recover Grub (I'm supposing this is the original bootloader)

Boot through Fedora DVD or Red Hat DVD of Mandriva , not Ubuntu
Select Troubleshooting and then select Rescue installed system option
To the question "Do you want to start the networking" say no.

Once you get to the shell enter the following three commands:

$chroot /mnt/sysimage
$cd /boot
$grub-install /dev/sda

And you have your bootloader back ;-)

Taken from http://www.wikihow.com/Restore-Linux-Grub-After-Installing-Windows

edited Jun 23 '15 at 19:35

answered Jun 23 '15 at 17:26

TellMeWhy

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