Re: Hi, I am new here.
Firstly, I would recommend PM-ing one of the moderators and asking them to change your title--many people are just going to not bother looking, whereas if your title is something like grub won't install into partition you will get better answers.
Anyway, what was the command you ran. That's a common error when you try to install into a partition rather than a drive. For example, did you do grub2-install /dev/sda or /dev/sda1?