Hi Giuseppe... ! Thanks for the hint. ill try it.
So from the docs, I'm seeing this:
"As of Fedora 16 there must be a biosboot partition for the bootloader to
be installed successfully onto a disk that contains a GPT/GUID
partition table, which includes disks initialized by anaconda. This
partition may be created with the kickstart option part biosboot --fstype=biosboot --size=1
. However, in the case that a disk has an existing biosboot partition, adding a "part biosboot" option is unnecessary."
So maybe you are suggesting that, the Kickstart file needs to define the boot info, because im installing from source and not from an ISO ?