This is the common problem which is faced, when you try for dual boot. Easily Recover / Re-Install Grub in Ubuntu using Boot-Repair from live cd / usb. Boot Repair is the simple graphical tool used to repair, restore or reinstall the grub bootloader on Ubuntu. Now this tools has been updated with some new features in advanced option, using boot- repair you can also restore the MBR on Windows.
On dual boot once you update your Ubuntu OS, Windows / Fedora will not be listed on your grub. After installing Windows / Fedora your Ubuntu will not boot anymore and its grub may be wiped out. To restore it follow the steps below
To Reinstall Grub
You need to have Ubuntu Live CD or Live USB. Normal session can be used to repair the grub. Boot using your Ubuntu Live CD or Live USB, while booting choose Try Ubuntu.
Once booted then open a terminal, and run the following command one by one to install the boot repair.
To add boot-repair to the repository
- sudo add-apt-repository ppa:yannubuntu/boot-repair
To Update your repository
- sudo apt-get update
To install boot-repair
- sudo apt-get install -y boot-repair
Once Installation complete run boot-repair on terminal by typing the following command or select it by System->Aministration->Boot Repair.
NOTE :- Update the Boot Repair if its newer version is available.
It will scan the System for few seconds and will show you the options Recommended repair and Create a BootInfo summary. By clicking the Recommended Repair it will start repair the grub. Check the screen shots below.
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