Date: Wed, 29 Oct 2008 13:32:39 -0400 From: John Baldwin <jhb@freebsd.org> To: Franck Royer <royer.franck@gmail.com> Cc: questions@freebsd.org Subject: Re: GPT Support on Freebsd Message-ID: <200810291332.40102.jhb@freebsd.org> In-Reply-To: <490886B3.4070204@free.fr> References: <49059437.4000700@free.fr> <200810291101.29795.jhb@FreeBSD.org> <490886B3.4070204@free.fr>
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On Wednesday 29 October 2008 11:52:19 am Franck Royer wrote: > John Baldwin a =E9crit : > > On Wednesday 29 October 2008 07:42:18 am Lowell Gilbert wrote: > > =20 > >> Franck Royer <royer.franck@gmail.com> writes: > >> > >> =20 > >>> Can I oblige pcbsd to look the gpt table instead of the msdos one ? H= ow > >>> can I access to my fifth partition ? > >>> =20 > >> John Baldwin (jhb) has been working on GPT support, but it's still > >> reported to be a work in progress. It works as far as recognizing > >> disks over 16TB. It also gets picked up by the geom framework. I'm > >> not sure about booting, although there are tantalizing hints in the > >> manual pages. > >> =20 > > > > GPT booting works just fine on 6.x and later. Using the gpt(8) utility= =20 you=20 > > basically do: > > > > # gpt create foo0 > > # gpt boot foo0 > > > > The second command creates a special boot partition in /dev/foo0p1. Yo= u=20 can=20 > > then add partitions: > > > > # gpt add -t ufs <other params like size if needed> foo0 > > # newfs /dev/foo0p2 > > > > gpart(8) in HEAD works similarly. The one thing lacking is that=20 > > sysinstall/libdisk doesn't handle GPT, so there isn't a nice way to do = it=20 > > during installation. > > > > =20 > Ok thank you. But actually, it's not what I'm looking for. >=20 > I use freebsd on a macbook. On this macbook, I already have a gpt, > refit, mac os x and some linux partitions. The problem is freebsd, which > doesn't recognize partitions after the fourth one (but my gentoo linux > see them). >=20 > Then, I suppose freebsd use the mbr partition table (synchronized from > the gpt one using refit) to populate the /dev, but partitions after the > fourth, which are those I want to use, are only indexed in the gpt. >=20 > Finally, I want to force freebsd to use the gpt on my hard drive to > allow it to see others partitions. >=20 > I don't want to destroy my actual gpt, maybe one day, but no right now. >=20 > Tell me if my english is too bad to be understood. >=20 > I just want to precise that I use pcvbsd 7.0, so the kernel > configuration might be different than the freebsd generic one. What device entries do you see in /dev? =2D-=20 John Baldwin
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