dual booting issue

[infinityux at yahoo.com]

Hi all, recently I have installed OpenSUSE beside FreeBSD. Now for the dual booting and booting FreeBSD from grub i wrote nano /boot/grub/grub.confand after that I wroteFreeBSD 10.3
root(ada0, a)
kernel /boot/loaderand saved it. Now when i am restarting the grub option is showing and after that OpenSUSE is booting automatically there is no option for freebsd booting.What i have done wrong?