Wednesday, July 2, 2014

Fedora OS disappeared after Windows OS update or installation

If you installed Fedora in your system first and Windows OS after it, you may run into an issue Fedora OS no more available in the boot. In this case you need to re-install GRUB bootloader. To install the GRUB bootloader boot from your Fedora DVD installation disk. Booting from disk will give you some option like 'Start Fedora' and 'Troubleshooting'. Don't click on 'Start Fedora' it will simply run the LIVE OS. Click on 'Troubleshooting' and then select 'Rescue a Fedora System'.

You system now boots into rescue mode. Now you can see only a prompt and you won't get any graphical interface. All you want to do is install grub in the first partition of your hard disk. Don't panic just enter the below command after the prompt to install grub.

grub-install /dev/sda1

Above command is to re-install the GRUB bootloader.

Now you need to create a configuration file. This configuration file will add Fedora OS in the boot menu. Use the below command.

grub2-mkconfig -o /boot/grub2/grub.cfg

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