Sometimes we get problem after installing windows besides linux. Fresh installation of windows sets boot loading directly from MBR. So, Grub boot loader does not work. We can recover Grub boot loader very easily. To do so, we can follow the following steps.
1. Start the pc on linux rescue mode.
2. In rescue mode do chroot/mnt/sysimage.
3. Then do grub-install /dev/hda
4. Restart the pc.
Now you will find Grub boot loader.
Mohammad Raihan Mazumder said
Its good method, I appreciate it. TQ.