Date: Sun, 1 Nov 2009 20:58:26 -0200 From: "Carlos A. M. dos Santos" <unixmania@gmail.com> To: Connor Imes <rocket2dmn@ubuntu.com> Cc: freebsd-doc@freebsd.org, Ryan Wolf <ryanjudaswolf@gmail.com>, ubuntu-doc@lists.ubuntu.com, jbmw@earthlink.net Subject: Re: Dual Booting Ubuntu Linux & FreeBSD using the new Grub2 Message-ID: <e71790db0911011458q19a88454o79874af954578a65@mail.gmail.com> In-Reply-To: <4AEDF42F.1050009@ubuntu.com> References: <f86423ba0911010106s5621508es2896c52dd89db2ab@mail.gmail.com> <4AEDF42F.1050009@ubuntu.com>
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On Sun, Nov 1, 2009 at 6:48 PM, Connor Imes <rocket2dmn@ubuntu.com> wrote: > Ryan Wolf wrote: >> To the Ubuntu & FreeBSD Documentation Folks: >> >> I spent all day trying to figure this out all because there isn't >> proper documentation in books or on the internet on it, and no one's >> documentation is up to date yet. After I figured it out, thought I >> would put together a document so that others won't have to strain as >> hard as I did just installing two operating systems that don't talk to >> each other to well. I hope Ubuntu decides to have more support for >> access to BSD partitions, as it doesn't seem to support it too well at >> the moment. >> >> Enjoy the document guys. It's my first time writing one, so I hope it >> helps. >> >> ~ Ryan > That is a nice looking document, Ryan. =A0One of the Ubuntu Documentation > contributors, drs305, has written (and been updating) a wiki page on > Grub2, which you can find here [1]. =A0It is geared toward Ubuntu users > who have Grub2 installed from Ubuntu, but a lot of the basics should be > applicable to FreeBSD as well. =A0You are welcome to expand on the wiki > page, or if you host your guide on a FreeBSD site, please let us know. > I don't believe the existing wiki page outlines multibooting in much > detail yet, so your knowledge in this field would be very helpful. > > [1] https://help.ubuntu.com/community/Grub2 I'm 4-booting Ubuntu 9.04, FreeBSD 7, 8 and -CURRENT using GRUB. I had to apply the following patch to grub2-1.96+20080512 in order to make it pass the correct info to the FreeBSD loader because I'm using a GPT-partitioned disk, with 17 partitions: --- loader/i386/bsd.c.orig 2008-02-19 13:40:45.000000000 -0300 +++ loader/i386/bsd.c 2009-02-01 21:20:59.000000000 -0200 @@ -101,6 +101,8 @@ if ((p[0] >=3D 'a') && (p[0] <=3D 'z')) *part =3D p[0] - 'a'; + else + *part =3D 0xff; } } } FreeBSD boot partitions are 2, 5, 8. I created the following "/etc/grub.d/10_freebsd" file, so "update-grub" does not remove FreeBSD from the boot menu. #!/bin/sh -e cat << EOF menuentry "FreeBSD 7-STABLE AMD64" { set root=3D(hd0,5) freebsd /boot/loader } menuentry "FreeBSD 8-STABLE AMD64" { set root=3D(hd0,8) freebsd /boot/loader } menuentry "FreeBSD 9-CURRENT AMD64" { set root=3D(hd0,2) freebsd /boot/loader } EOF Then I created a "/etc/grub.d/01_casantos" file, to unset the defult OS and timeout: #!/bin/sh -e cat << EOF unset default unset timeout EOF --=20 My preferred quotation of Robert Louis Stevenson is "You cannot make an omelette without breaking eggs". Not because I like the omelettes, but because I like the sound of eggs being broken.
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