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Date:      Wed, 27 Feb 2002 14:13:28 -0500
From:      Michael Lucas <mwlucas@blackhelicopters.org>
To:        Thierry Herbelot <thierry@herbelot.com>
Cc:        Steve Tremblett <sjt@cisco.com>, freebsd-hackers@FreeBSD.ORG
Subject:   Re: getting started with -CURRENT
Message-ID:  <20020227141328.A65111@blackhelicopters.org>
In-Reply-To: <3C7D25C3.85B66088@herbelot.com>; from thierry@herbelot.com on Wed, Feb 27, 2002 at 07:30:27PM %2B0100
References:  <20020227102056.A21989@sjt-u10.cisco.com> <3C7D25C3.85B66088@herbelot.com>

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Just choose to install the FreeBSD Boot Manager, and you'll be fine doing this.

I do this so that my laptop always has a runnable -stable, then run
-current for day-to-day use.  My laptop is a production machine for
me, after all.

My disk is divided a little differently, however:

pedicular~;dh
Filesystem    Size   Used  Avail Capacity  Mounted on
/dev/ad0s3a   197M    62M   119M    34%    /
devfs         1.0K   1.0K     0B   100%    /dev
/dev/ad0s3f   4.5G   1.1G   3.0G    27%    /usr
/dev/ad0s3e   246M   4.6M   222M     2%    /var
/dev/ad0s2a   246M    39M   187M    17%    /stable
/dev/ad0s2f   4.4G   1.6G   2.5G    39%    /stable/usr
/dev/ad0s2e   246M    27M   200M    12%    /stable/var
/dev/ad0s4e    26G   7.3G    17G    30%    /shared
pedicular~;

Note the /shared partition, that takes up most of my space.  The
actual OS is small; there's no reason why things such as the ports
tree, /tmp, /usr/obj, and my home directory cannot be shared between
the OSs.  /shared contains a hand-crafted duplicate of selected
portions of the file tree, and I use a lot of symlinks to redirect
directories more-or-less transparently.  It's tedious, but easy.

On Wed, Feb 27, 2002 at 07:30:27PM +0100, Thierry Herbelot wrote:
> Steve Tremblett wrote:
> > 
> > I would think it is reasonable to dual-boot -CURRENT and -STABLE on
> > this box.  Is this possible on the same hard disk, or will multiple
> > hard disks be required for that?  I'm thinking that the BIOS should
> > complain about multiple partitions of the same type?  I'm so out of the
> > loop in the PC world that I don't know if that is still a problem :)
> 
> one disk (if large enough) is sufficient to boot numerous versions of
> FreeBSD (at the very least, one version for each of the 4 BIOS principal
> partitions, then even multple versions inside each BIOS partition)
> 
> One example :
> 
> multi% df
> Filesystem  1K-blocks     Used    Avail Capacity  Mounted on
> /dev/ad0s3a     49583    35384    10233    78%    /
> devfs               1        1        0   100%    /dev
> /dev/ad0s3f    724303   399635   266724    60%    /usr
> /dev/ad0s3e     19815     5559    12671    30%    /var
> procfs              4        4        0   100%    /proc
> /dev/ad0s1a     49583    38531     7086    84%    /old_root
> /dev/ad0s1f    704495   477161   170975    74%    /old_usr
> /dev/ad0s1e     19815    14297     3933    78%    /old_var
> /dev/ad0s2e  15302928 13682913  1007898    93%    /files3
> multi%
> 
> ad0s3 (3rd BIOS part of the first IDE disk) hosts -Current, and ad0s1
> hosts -Stable. Shared resources are in ad0s2e (notably -Current sources,
> which are built when booted on -Stable)
> 
> 	TfH
> 
> you may also want to read carefully one post by Matt Dillon :
> <http://groups.google.com/groups?q=+%22DO+NOT+ACCIDENTLY+TRY+TO+INSTALL+THE+-CURRENT+WORLD%22&hl=en&scoring=r&selm=200108281814.f7SIETX34454_earth.backplane.com%40ns.sol.net&rnum=1>;
> 
> To Unsubscribe: send mail to majordomo@FreeBSD.org
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-- 
Michael Lucas		mwlucas@FreeBSD.org, mwlucas@BlackHelicopters.org
my FreeBSD column: http://www.oreillynet.com/pub/q/Big_Scary_Daemons

http://www.blackhelicopters.org/~mwlucas/

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