Restore Recreate Lost MBR Grub Boot Loader Linux

Problem - lost grub.conf & MBR Master Boot Record
In my system due to unclean shutdown, grub.conf and mbr are corrupted.So when I restart the system it is going to the grub window.I restart the Operating system using rescue mode.
After I loading we need to do the following things
SOLUTION Restore MBR grub loader
1)Find where the grub.conf file are located.
grub> find /boot/grub/stage1
(hd0,0)
2)Find the File system of the root partition
grub> root (hd0,0)
File system type is ext2fs, partition type 0x83
3)using setup command install grub.conf file
grub> setup (hd0,0)
Checking if "/boot/grub/stage1" exists... yes
Checking if "/boot/grub/stage2" exists... yes
Checking if "/boot/grub/e2fs_stage1_5" exists... yes
Running "embed /boot/grub/e2fs_stage1_5 (hd0,0)"... failed (this is not fatal)
Running "embed /boot/grub/e2fs_stage1_5 (hd0,0)"... failed (this is not fatal)
Running "install /boot/grub/stage1 (hd0,0) /boot/grub/stage2 p /boot/grub/grub.conf "... succeeded
Done.
4)Now load the kernel and initrd
grub> kernel /boot/vmlinuz-2.6.18-164.el5 ro root=LABEL=/ rhgb quiet
   [Linux-bzImage, setup=0x1e00, size=0x1c31b4]
grub> initrd /boot/vmlinuz-2.6.18-164.el5
Possible files are: vmlinuz-2.6.18-164.el5 vmlinuz-2.6.18-164.el5xen
There initrd these boot loader initialized a ram disk.
Finally type the #boot command it will boot your operating system.

Restore Grub trouble shooting related command
fsck.ext3 /dev/hda1 >>check the file system.
grub-install --root-directory=/mnt /dev/hda1 >> install grub boot loader
chroot /mnt/sysimage >> it will change the default root directory to /mnt/sysimage
mount -t ext2 /dev/hda2 /mnt/sysimage >> if hardisk unable to mount we can using these command
Login to the resuce mode for Linux redhat centos fedora to resolve the grub and mbr corrupted file.
grub> find /boot/grub/stage4
Error 15: File not found
if you get Error 15 File not found Then try with following command
grub> find (hd0,0)/boot/grub/stage1
(hd0,0)
grub>root (hd0,0)
grub>setup (hd0,0)
Error 15: File not found
grub>kernel (hd0,X)/boot/
/dev/sda1 will be hda(0,0)
/dev/sda2 will be hda(0,1)
/dev/sdb1 will be hda(1,0)
/dev/sdb2 will be hda(1,1).Error 15: File not found