Date: Thu, 25 May 2000 14:18:45 -0400 (EDT) From: James Howard <howardjp@glue.umd.edu> To: "Duane H. Hesser" <dhh@androcles.com> Cc: freebsd-hackers@FreeBSD.ORG Subject: Re: FreeBSD kernel as a replacement for Linux kernel Message-ID: <Pine.GSO.4.21.0005251412020.26773-100000@z.glue.umd.edu> In-Reply-To: <XFMail.000525094251.dhh@androcles.com>
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On Thu, 25 May 2000, Duane H. Hesser wrote: > Anyone remember the old Pyramid OSX 'universe' command? > > In the mid-80s, when the "System V" versus "BSD" dichotomy was in > full bloom, Pyramid delivered a system with two "universes" available. > A user could specify 'universe bsd' and work in a pure BSD environment; > 'universe att' placed you in a pure S5 environment (of the time). > A user in the BSD environment could "cross the line" by issuing a > command like "att ls", or even "att cc ....". The universe was > marked by a flag which affected the interpretation of "conditional > symbolic links". A separate syscall was available to create > conditional symbolic links. > > Sequent also implemented conditional symbolic links, although I > seem to recall that the Pyramid implementation was a bit more > complete. > > How about a 'FreeBSD' universe and a 'Linux' universe? It would be cool if it were extensible and you could strap on a Solaris/SVR4/SVR5, HURD, or even Mac and Windows universes later. Since I mention it, does anyone know the major differences between SCO's new SVR5 (Unixware 7) and traditional SVR4 implementations? Going to SCO's website all I get is market-speak. Jamie To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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