While booting Linux OS . I got the following Error message.
ERROR MESSAGE: Grub Loading Stage2 Read Error
REASON: Hard Disk Cable is not Connected Properly.
SOLUTION- : change the Hard disk cable Or Remove and Plug it Again then try it.
Grub Loading Stage1 & Grub Loading stage2 Error Message. Maximum 80% it will solve by through changing the cable. If we get grub > shell then only we should re install the grub boot loader. To reinstall Grub Boot loader Refer this Link. Reinstall Grub Boot Loader