Trouble getting MD raid booting Mint 19.3

I have 2 SSD drives setup with MD RAID0, this computer has no UEFI so I am having to use GRUB2, now at first I tried having a separate partition outside of raid for /boot, if I do it this way and set the root and all that to /dev/sda1 (/boot partition with grub) it will load and drop into emergency shell, from which I could manually mount /dev/md0p3 (raid partition which is real root), and chroot to it, then I thought well what if I try to just keep /boot in the same root partition, and let mbr be in the /dev/sda1, but when I try to do that grub-install fails saying it can't find a device for /boot/grub. Someone please help me figure this out :).