Fix Ubuntu 11.04 Won’t Boot After Restart

After installing Ubuntu 11.04 in a Core 2 Duo Lenovo laptop with Intel Mobile 4 Series Chipset. If the Ubuntu 10.10 worked in flawlessly. But that was not the case when installed the latest Ubuntu. Though installation went smooth, Ubuntu 11.04 just won't boot after restart and instead a blank screen appears with a blinking cursor. This problem can be fixed by doing the following steps.

Step 1

Switch on your laptop and choose 'recovery mode' from GRUB(usually the second option). From the recovery mode prompt, choose 'failsafeX' option.
Choosing failsafeX mode will run your OS in safe graphics mode and you will be able to access classic GNOME desktop now.

Step 2

Open Terminal and do the following then(give password when prompted).
sudo gedit /etc/default/grub
Text Editor window will open up. 

Step 3
Copy paste the following text to the bottom of the file.
Save and exit. Finally, do the following in Terminal to update GRUB.
sudo update-grub
Done. Now restart Ubuntu 11.04, it should work OK now.
Not everyone will be able to successfully boot into failsafeX mode. If you are still not able to solve blank screen after reboot issue, this ubuntuforums thread might be of real help to you.


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