dual booting ubuntu 12.04 and FreeBsd

[the great sayaman]

i installed ubuntu 12.04 first and Free Bsd just today however i am having a few problems dual booting them through grub 2

i am following the instructions from this

http://lists.freebsd.org/pipermail/f...er/016465.html

however it then says to enter the following commands in the ubuntu live cd (which i have adjusted according to my computor)

$sudo mount /dev/sda1 /mnt
$sudo grub-install --root-directory=/mnt /dev/sda
$cat /boot/grub/device.map

this gives a installation of grub is done without a problem however when the cat /boot... comand is given then i get the following result

cat: /boot/grub/device.map: No such file or directory

[oldfred]

One of the recent updates to grub2 did away with device.map. It will use it if found from an old upgrade but just finds devices each time it needs them.

You should just be able to look at your partitions with fdisk and see what is what. FreeBsd needs a primary partition?

Post this from Ubuntu's command line:

sudo fdisk -lu

I do not use FreeBSD, but someone posted this as their 40_custom entry:

http://forums.freebsd.org/showthread.php?t=5918
menuentry "freebsd 8.0" {
set root=(hd0,2,a)
chainloader +1
}