Date: Tue, 08 Aug 2006 11:25:18 -0500 From: Derek Ragona <derek@computinginnovations.com> To: Girish Venkatachalam <girish1729@yahoo.com>, freebsd-questions@freebsd.org Subject: Re: Booting more than 4 OSes from a hard disk? Message-ID: <6.0.0.22.2.20060808111819.026c7bf0@mail.computinginnovations.com> In-Reply-To: <20060808154003.78545.qmail@web35611.mail.mud.yahoo.com> References: <20060808154003.78545.qmail@web35611.mail.mud.yahoo.com>
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Master boot records are limited to four which is where the limit comes
from. It is theoretically possible to have the MBR point to a new disk
location where you could have a boot manager that supports unlimited boot
partitions. But that requires all the booting is in software and outside
the BIOS.
A simple solution is to use 2 disks. Each with four partitions. The
FreeBSD bootmanager will offer to boot from disk2. On disk 2 you can have
your remaining OS's.
-Derek
At 10:40 AM 8/8/2006, Girish Venkatachalam wrote:
>Dear all,
>
>I was wondering if the 4 primary parition booting
>limit still exists. Is it possible to have
>
>Windoze
>Linux
>FreeBSD
>OpenBSD
>NetBSD
>
>on the same box in such a way that we can boot into
>any of them?
>
>I am particularly interested in the x86 arch with IDE
>disks. I think this is possible on other archs with
>SCSI.
>
>What boot manager am I supposed to use? Does it
>require setting something on the BIOS? Does FreeBSD
>support booting from a point way off the first sector?
>
>Thanks.
>
>regards,
>Girish
>
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