Date: Sat, 23 Apr 2011 20:30:57 -0400 From: Andrew Lankford <lankfordandrew@charter.net> To: imp@bsdimp.com, perryh@pluto.rain.com Cc: hackers@freebsd.org Subject: Fwd: Re: scd and mcd Message-ID: <4DB36F41.7070307@charter.net>
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My last desktop machine had an ASUS Pentium-3 (no ISA slots), USB1 only. It has outlived the original hard drive, CDROM, and power supply, but I think it makes more sense these days to throw these systems out rather than "future-proof" them, especially if a fanless SoC could be less power-hungry and noisy. It seems to me that people who want to get more life out 10yr old hardware need to be part of some sort of trimmed down "LegacyBSD" project that caters to their special needs. You all know more than I do about the orgs that are following the stable-6 or stable-7 branches, but are they using ancient CDROMS with a limited life span? -------- Original Message -------- From: - Sat Apr 23 19:53:48 2011 X-Account-Key: account2 X-UIDL: <A3D64DC0-58C3-451B-B85F-0072BB0697F2@bsdimp.com> X-Mozilla-Status: 0011 X-Mozilla-Status2: 00000000 X-Mozilla-Keys: Return-Path: <imp@bsdimp.com> Received: from imp04 ([10.20.200.4]) by mta52.charter.net (InterMail vM.7.09.02.04 201-2219-117-106-20090629) with ESMTP id <20110423234226.QAAM13475.mta52.charter.net@imp04> for <lankfordandrew@charter.net>; Sat, 23 Apr 2011 19:42:26 -0400 Received: from harmony.bsdimp.com ([199.45.160.85]) by imp04 with charter.net id bBiR1g01x1qqkgf04BiSRj; Sat, 23 Apr 2011 19:42:26 -0400 X-Chzlrs: ?? X-Authority-Analysis: v=1.1 cv=ACdvlZsxPtp6/8rt9ATxQxe5eelQ5vQqaf1LwcbVAy0= c=1 sm=1 a=Ucbx8mQ_rlYA:10 a=MV1VDysopeJvYeH43xkbGw==:17 a=GKysJfYJAAAA:8 a=7Qk2ozbKAAAA:8 a=VHkpZ49OhpeKkUvcBWkA:9 a=ABrYPtnIPbQqMp5bbigA:7 a=CjuIK1q_8ugA:10 a=cvZW9r6VXHAA:10 a=aNaW_GFDrTlh0hGR9xgA:9 a=P0Ne2a3NTbHX3BCDdCkA:7 a=MV1VDysopeJvYeH43xkbGw==:117 Received: from [10.0.0.63] (63.imp.bsdimp.com [10.0.0.63]) (authenticated bits=0) by harmony.bsdimp.com (8.14.4/8.14.3) with ESMTP id p3NNbvwt006040 (version=TLSv1/SSLv3 cipher=DHE-DSS-AES128-SHA bits=128 verify=NO); Sat, 23 Apr 2011 17:37:59 -0600 (MDT) (envelope-from imp@bsdimp.com) Subject: Re: scd and mcd Mime-Version: 1.0 (Apple Message framework v1084) Content-Type: multipart/alternative; boundary=Apple-Mail-4-1024646444 From: Warner Losh <imp@bsdimp.com> In-Reply-To: <4db35e8a.R5LDMfg8cygIRbfF%perryh@pluto.rain.com> Date: Sat, 23 Apr 2011 17:37:57 -0600 Cc: hackers@FreeBSD.org, lankfordandrew@charter.net Message-Id: <A3D64DC0-58C3-451B-B85F-0072BB0697F2@bsdimp.com> References: <4DB3142A.4000807@charter.net> <1E3F5B85-5A1A-4118-A9D8-932F46619C79@bsdimp.com> <4db35e8a.R5LDMfg8cygIRbfF%perryh@pluto.rain.com> To: perryh@pluto.rain.com X-Mailer: Apple Mail (2.1084) X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.0.1 (harmony.bsdimp.com [10.0.0.6]); Sat, 23 Apr 2011 17:37:59 -0600 (MDT) On Apr 23, 2011, at 5:19 PM, perryh@pluto.rain.com wrote: > Warner Losh<imp@bsdimp.com> wrote: > >> mcd and scd are ISA-only devices ... They were important for the >> 386 (now not supported) and 486 machines. Since the 486 machines >> in question maxed out at 32MB, and 8.x has trouble running in 32MB >> on x86, I'm guessing there aren't too many 486 SX/DX machines >> running 8.x. > > 486 were the last for which ISA was the primary bus, but ISA was > still present (bridged from PCI) on most Pentium systems and common > at least as recently as Pentium-II. (I don't have a disassembled > P-III handy to check whether it has an ISA slot.) Most Pentium II and newer systems had IDE connectors on the motherboard. Many of the Pentium I ones did too. Only if you didn't have IDE connectors on mobo would you be likely to consider one of these CD's. Also, I think they topped out at 4x or 8x speed since they had a custom interface. Warner
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