FreeBSD dual boot with linux on legacy bios computer

1. Install FreeBSD using UFS filesystem

2. Install linux or altenatively install linux´s grub to mbr (master boot record)

3. Edit /etc/grub.d/40_custom file

sudo nano /etc/grub.d/40_custom

…. add entry (if FreeBSD is sda1)

menuentry "FreeBSD boot loader "{
set root="hd0,1"
kfreebsd /boot/loader
}

4. Update grub

sudo update-grub