127 lines
4.2 KiB
Plaintext
127 lines
4.2 KiB
Plaintext
.\" $NetBSD: hardware,v 1.14 1999/01/13 07:30:06 ross Exp $
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NetBSD/mac68k \*V runs on several of the older Macintosh computers.
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About 4MB of RAM should be sufficient to boot, and the system can probably
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be squeezed onto a 40MB hard disk by leaving off an unnecessary set or two.
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To actually do much compiling or anything more interesting than booting, at
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least 8MB of RAM and more disk space is recommended. About 75MB will be
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necessary to install all of the
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.Nx \*V
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binary system distribution
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sets (note that this does not count swap space!). An additional 25MB or so
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is needed for the binary X11 distribution sets. Much more disk space is
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required to install the source and objects as well (at least another 300MB).
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.Ss2 Supported models:
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.Pp
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.Bl -bullet -compact
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.It
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Mac II, IIx, IIcx, SE/30, IIci, IIsi, IIvx, IIvi,
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.It
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Performa 400/405/410/430, Performa 450, Performa 460/466/467,
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.It
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Performa 520, Performa 550/560, Performa 600,
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.It
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LC II, LC III, LC III+, LC 520, LC 550,
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.It
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MacTV,
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.It
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Centris 650,
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.It
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Quadra 610, Quadra 630, Quadra 650, Quadra 700, Quadra 800,
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.It
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Quadra/Centris 660AV, Quadra 840AV
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.El
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.Ss2 Supported\ devices\ on\ all\ of\ the\ above\ systems\ include:
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.Pp
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.Bl -bullet -compact
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.It
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Onboard SCSI bus and most SCSI tapes, hard drives, and CD-ROMs
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.It
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Internal sound--enough to beep on some machines, anyway
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.It
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Most basic NuBus video cards (there have been some
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problems with some 24-bit color cards and with most
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QuickDraw acclerators)
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.It
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Both internal serial ports
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.It
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ADB keyboards and mice (both Apple and a number of third party
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multi-button mice and trackballs are supported)
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.It
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Ethernet cards based on the National Semiconductor 8390 and the
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SONIC (DP83932) chips
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(Asante, Apple, and a few others--problems still
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with Ethernet and many NuBus video cards)
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.It
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Onboard Ethernet based on the SONIC chip for Quadra-series Macs
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.It
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Onboard Ethernet based on the MACE (Am79C940) chip for the Quadra
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AV-series Macs
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.It
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Comm-slot Ethernet may be working for some machines/cards
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.El
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.Pp
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If your 68030 system is not listed above, it may be because of a problem
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with accessing onboard video, and it may still work with a serial console.
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Some of the known ones in this category:
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.Pp
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.Bl -bullet -compact
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.It
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Classic-series Macs
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.It
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PowerBook 100-series and Duo-series Macs
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.El
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.Pp
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If your 68LC040 system is not listed above, it is due to a problem with
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floating point emulation (FPE) for this type of processor. Machines in
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this category include:
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.Pp
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.Bl -bullet -compact
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.It
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Newer LC-series machines
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.It
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Newer Performa-series machines
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.It
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Some PowerBook 500-series Macs
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.El
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.Ss2 What\ isn't\ supported,\ but\ often\ asked\ about:
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.Bl -hang
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.It Em Macintosh IIfx:
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This machine has unusual custom chips for the
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ADB and serial interfaces which make support for it
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difficult. Work is in progress on this, though.
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.It Em Quadra 900/950:
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These machines have I/O processor chips for their
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ADB interfaces similar to those used in the IIfx and thus
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face similar support problems.
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.It Em PowerPC-based Macs:
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This will be a separate effort from the mac68k
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port. The PowerPC is a much different processor as is much
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of the hardware inside these machines. If you are
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interested in this, you might want to take a look at
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http://www.mklinux.apple.com/. In addition, there is
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also a NetBSD-powerpc port. For more information, please
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see http://www.tools.de/~ws/NetBSD/powerpc.html.
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.El
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.Pp
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Known hardware issues with this release:
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.Bl -hang
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.It Em Real Time Clock:
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Due to oddities of the Macintosh hardware
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interrupt priority scheme, NetBSD/mac68k keeps very poor
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time. Under a high interrupt load (e.g. SCSI or serial
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port activity) , a machine can lose several minutes per
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hour. A consequence of this problem is that attempting to
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run xntpd is rather pointless unless you periodically call
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ntpdate.
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.It Em SCSI difficulties:
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The NetBSD/mac68k SCSI drivers are not quite as
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robust as their MacOS counterparts. Symptoms of these
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problems are that some SCSI disks will not work under
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NetBSD that work fine under MacOS. Other problems include
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occasional filesystem corruption with some drives types of
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drives and the general unreliability of removable SCSI
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media. Keep in mind that there are no clear patterns with
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these problems, and they do not appear to affect the
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majority of users.
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.El
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