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Thread: Installed BSD, how to add BSD partition to existing grub?

  1. #1
    Join Date
    Oct 2007
    Beans
    144

    Installed BSD, how to add BSD partition to existing grub?

    Hi everyone.
    I installed Ubuntu like half a year ago and recently I have decided to give BSD a try. I formatted my windows partition and successfully installed BSD on that partition. When prompted to use BSD's boot manager, I picked no because I like the way grub functions.

    So here's the tricky question:
    How do I add my BSD partition as a boot option into my grub menu?
    I am in my Ubuntu right now, and I don't know how the system will automatically be able to detect

    This is my grub menu file: "

    title Ubuntu 8.04, kernel 2.6.24-17-generic
    root (hd0,2)
    kernel /boot/vmlinuz-2.6.24-17-generic root=UUID=5a780324-ac66-4eb0-a75d-54f433b9c677 ro acpi_sleep=s3_bios
    initrd /boot/initrd.img-2.6.24-17-generic
    quiet

    title Ubuntu 8.04, kernel 2.6.24-17-generic (recovery mode)
    root (hd0,2)
    kernel /boot/vmlinuz-2.6.24-17-generic root=UUID=5a780324-ac66-4eb0-a75d-54f433b9c677 ro single
    initrd /boot/initrd.img-2.6.24-17-generic

    title Ubuntu 8.04, kernel 2.6.22-14-generic
    root (hd0,2)
    kernel /boot/vmlinuz-2.6.22-14-generic root=UUID=5a780324-ac66-4eb0-a75d-54f433b9c677 ro acpi_sleep=s3_bios
    initrd /boot/initrd.img-2.6.22-14-generic
    quiet

    title Ubuntu 8.04, kernel 2.6.22-14-generic (recovery mode)
    root (hd0,2)
    kernel /boot/vmlinuz-2.6.22-14-generic root=UUID=5a780324-ac66-4eb0-a75d-54f433b9c677 ro single
    initrd /boot/initrd.img-2.6.22-14-generic

    title Ubuntu 8.04, memtest86+
    root (hd0,2)
    kernel /boot/memtest86+.bin
    quiet

    ### END DEBIAN AUTOMAGIC KERNELS LIST

    # This is a divider, added to separate the menu items below from the Debian
    # ones.
    title Other operating systems:
    root


    # This entry automatically added by the Debian installer for a non-linux OS
    # on /dev/sda1
    title Windows Vista/Longhorn (loader)
    root (hd0,0)
    savedefault
    makeactive
    chainloader +1


    # This entry automatically added by the Debian installer for a non-linux OS
    # on /dev/sda2
    title Windows Vista/Longhorn (loader)
    root (hd0,1)
    savedefault
    makeactive
    chainloader +1
    "

    Now windows vista no longer exists. How do I add my BSD partition onto it?
    What are the commands?

  2. #2
    Join Date
    Mar 2008
    Beans
    209

    Re: Installed BSD, how to add BSD partition to existing grub?

    This should work (untested for years though, as these days I use GAG if multibooting).

    title FreeBSD
    root (hd0,0)
    chainloader +1

    In other words, it should still work, you're just chaging the title (and the makeactive is probably unnecessary.)

    The other way, which also used to work (though at one point, GRUB was unable to detect UFS2, but I believe that was fixed years ago)

    title FreeBSD
    root (hd0,0,a)
    kernel /boot/loader

    I repeat, I haven't tested either of these for years, but even if they don't work, they won't damage anything.

  3. #3
    Join Date
    Oct 2007
    Beans
    144

    Re: Installed BSD, how to add BSD partition to existing grub?

    But bsd has so many paritions that comes with it.
    How do I know which is the one that I should boot?

    How do I find out which /dev/? is my BSD partition?

    Thanks

    PS: How is GAG coming along? Would you recommend it? is it easy to manipulate? Do I have to give up my existing grub bootloader menu for GAG?

  4. #4

    Re: Installed BSD, how to add BSD partition to existing grub?

    Moved to BSD discussions.
    Learning is not attained by chance, it must be sought for with ardor and attended to with diligence. Abigail Adams ( 1744 - 1818 ), 1780;

    My blog Poetry and More Free Ubuntu Magazine

  5. #5
    Join Date
    Nov 2005
    Location
    Bordeaux, France
    Beans
    11,297
    Distro
    Ubuntu 12.04 Precise Pangolin

    Re: Installed BSD, how to add BSD partition to existing grub?

    First things first. Which BSD did you install ? Also, please paste the output of

    Code:
    sudo fdisk -l

  6. #6
    Join Date
    Mar 2008
    Beans
    209

    Re: Installed BSD, how to add BSD partition to existing grub?

    My bad, in two places, I assumed FreeBSD, and mental shorthand.

    From your post, I gathered that you put the BSD in the partition that had belonged to Windows, in other words, what grub sees as hd0,0.

    As for BSD partitions, in general (I'm pretty sure this is for all of them, but at the moment, I only have a FreeBSD one to check, it would be something like

    /dev/ad0 is the entire disk
    ad0s1 is the BSD partition.
    ad0s1a is root
    ad0s1b is swap
    ad0s1c is the raw partition, don't worry about it.
    As a rule d is /var/, e /tmp and f /usr but this might differ.

    At any rate, IF you put FreeBSD in the partition that had been the Windows one, the syntax I gave you should work as written. The /boot/kernel part is on slice a, the root partition.

    Now, rereading your post I see you had two Windows partitions. I'm not sure which one is used for BSD, but the syntax I gave you should work--just, if you put it in the partition that Windows had, that was hd0,1 just replace the hd0,0 that I wrote before with hd0,1 and it should work.
    Hopefully, I've been clearer this time, if not, post again, (though I'm going to sleep now, so probaby won't see it till the morning.)

  7. #7
    Join Date
    Oct 2007
    Beans
    144

    Re: Installed BSD, how to add BSD partition to existing grub?

    Device Boot Start End Blocks Id System
    /dev/sda1 1 816 6549504 27 Unknown
    Partition 1 does not end on cylinder boundary.
    /dev/sda2 * 816 4486 29483267 a5 FreeBSD
    /dev/sda3 4487 19089 117293400 83 Linux
    Partition 3 does not end on cylinder boundary.
    /dev/sda4 19089 19457 2955960 5 Extended
    Partition 4 does not end on cylinder boundary.
    /dev/sda5 19089 19457 2955928+ 82 Linux swap / Solaris

  8. #8
    Join Date
    Nov 2005
    Location
    Bordeaux, France
    Beans
    11,297
    Distro
    Ubuntu 12.04 Precise Pangolin

    Re: Installed BSD, how to add BSD partition to existing grub?

    So the two suggestions scottro made in post #2 should work, with hd0,1 instead of hd0,0.

  9. #9
    Join Date
    Oct 2007
    Beans
    144

    Re: Installed BSD, how to add BSD partition to existing grub?

    Alright! everything works! thanks alot!

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