[CentOS] grub-install

Sat Aug 15 01:18:18 UTC 2015
Sachin Gupta <sachin3072004 at gmail.com>

Hello Everyone,

I am a newbie. When I try to install GRUB2 on centos 5.2 system, I get
following error.

centos5: grub-install  /dev/sda
//sbin/grub-setup: warn: This GPT partition label has no BIOS Boot
Partition; embedding won't be possible!.
//sbin/grub-setup: warn: Embedding is not possible.  GRUB can only be
installed in this setup by using blocklists.  However, blocklists are
UNRELIABLE and their use is discouraged..
//sbin/grub-setup: error: will not proceed with blocklists.

Can you please help me figure out the problem ?