Grub2 rescue with Win7 & Ubuntu

Question

I installed the Ubuntu 14.04 and a Windows 7 in the same HD. And everything was working, but I created another partition in Windows to store data. And now I can't boot.

error unknown filesystem
grub rescue >

How I can restore the grub?

i have added an answer, check it – Faizan Akram Dar Mar 31 '15 at 17:01 — Faizan Akram Dar, Mar 31 '15 at 17:01

score 0 · Answer 1 · answered Mar 31 '15 at 16:56

0

First thing to try: Boot a live USB or CD and run boot-repair

answered Mar 31 '15 at 16:56

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score 0 · Answer 2 · answered Mar 31 '15 at 16:57

Do you still have your live medium? A usb stick or a dvd with an Ubuntu live system? Boot from it.

Enter lsblk to find out the name of your hdd. For me the output is

$ lsblk
NAME   MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT
sda      8:0    0 238.5G  0 disk 
├─sda1   8:1    0   100M  0 part 
├─sda2   8:2    0  79.9G  0 part 
├─sda3   8:3    0     1K  0 part 
├─sda5   8:5    0     5G  0 part 
└─sda6   8:6    0 153.5G  0 part /
sr0     11:0    1  1024M  0 rom

so my hdd is /dev/sda.

Then enter these commands:

sudo grub-install /dev/sda
sudo update-grub

Reboot and you're done.

score 0 · Answer 3 · answered Mar 31 '15 at 17:00

Boot into Ubuntu live from DVD or USB.

Open terminal by Ctrl+Alt+T. Then execute following command :

sudo add-apt-repository -y ppa:yannubuntu/boot-repair && sudo apt-get update && sudo apt-get install -y boot-repair && boot-repair

Reboot and you are done!

Grub2 rescue with Win7 & Ubuntu

3 Answers3