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Date:      Wed, 27 Feb 2002 19:30:27 +0100
From:      Thierry Herbelot <thierry@herbelot.com>
To:        Steve Tremblett <sjt@cisco.com>
Cc:        freebsd-hackers@FreeBSD.ORG
Subject:   Re: getting started with -CURRENT
Message-ID:  <3C7D25C3.85B66088@herbelot.com>
References:  <20020227102056.A21989@sjt-u10.cisco.com>

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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>;

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