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Date:      Wed, 12 Apr 2000 16:27:05 +0930
From:      Greg Lehey <grog@lemis.com>
To:        Micke Josefsson <mj@isy.liu.se>
Cc:        FreeBSD Questions <questions@FreeBSD.org>
Subject:   Re: "dangerously dedicated"
Message-ID:  <20000412162705.O35391@freebie.lemis.com>
In-Reply-To: <XFMail.000412084005.mj@isy.liu.se>
References:  <Pine.GSO.4.21.0004112110230.16167-100000@apogee.whack.org> <XFMail.000412084005.mj@isy.liu.se>

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On Wednesday, 12 April 2000 at  8:40:05 +0200, Micke Josefsson wrote:
>
> On 12-Apr-00 `ekips wrote:
>> when making partitions with /stand/sysinstall, i decided to press
>> "A" and got the following message:
>>
>> "Do you want to do this with a true partition entry so as to remain
>> cooperative with any future operating systemss on the drive(s)?"
>>
>> ... and then points me to the FreeBSD FAQ, where i could not find
>> any info on the subject.  where can i find good documentation on
>> this?  or even better, could someone explain all the ramifications
>> of my two options [yes/no].  thanx.
>
> In short: Normally a disk consists of up to 4 primary partitions (or
> three primary and one extended, which can contain infinately many
> extended partitions). A table at the beginning of the disk has space
> for four pointers to these four regions on disk. A dangerously
> dedicated disk ignores this table and starts using the disk from its
> very beginning, as a result of this you cannot afterwards repartition
> your disk to make space for (shudder) windows. This works all right
> for FreeBSD: If you have no intention of installing anything but
> FreeBSD on it then go straight ahead with 'dangerously dedicated'.
>
> You can still erase the entire disk and partition it with dos's fdisk
> later if you want - but you'll lose the your FreeBSD installation
> then.

This is a frequently cited reason, but when you think about it, it
doesn't make much sense: even if the disk has a Microsoft partition
table, if you assign the entire disk to FreeBSD, you can repartition,
but you'll lose the FreeBSD installation.

Greg
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