Date: Mon, 14 Oct 1996 11:02:34 -0700 (PDT) From: John Utz <spaz@u.washington.edu> To: Mauricio Calderon <mcalder@205.218.236.10> Cc: hackers <hackers@FreeBSD.org>, FreeBSD Hardware group <hardware@FreeBSD.org> Subject: Re: AMD 586 runs FreeBSD just FINE Message-ID: <Pine.OSF.3.95.961014104234.8437B-100000@becker1.u.washington.edu> In-Reply-To: <199610141830.LAA29090@interlink.ReyMoreno.net.co>
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Hi there; trimmed the individuals out because they will see it on hackers anyway.. probably not really appropriate to post questions like this to hackers, supposed to go to questions. i may be reinforcing a bad trait, but anyway! On Mon, 14 Oct 1996, Mauricio Calderon wrote: > Hi, > > At present I have a Hard disk with FreeBSD on a 486/DX266. I want to > configure it in a machine 386/33, but when I reboot the system report me > incompatibility (and show me some option but never can use those)and reboot > each 10 seconds. > > Can I use the disk on the 386/33 machine? The problem is not going to be with the disk per se. The x86 architecture is pretty cpu insensitive by design. It should work, provided that the 386 has a non-funky ( ie not one of those elaborate caching, expensive add on ) ide controller. If u are using the controller built into the board ( assuming it has one, some do, some dont, i own both ), then it should be just fine. I am assuming that what you did was simply yank the disk with freebsd on it out of one machine and plop it in another, right? If so, did u make a custom kernel or are u still using a generic kernel? The first thing that came to my mind when i read your post was that you had a 386 without the companion 387 math-co to go with it, and your kernel has been recompiled with the math emulation removed ( remember, a 486 is simply a 386 and a 387 on the same chip, with a shared 8k cache included ). cant really help you beyond that. I would suggest that if you are just using the generic kernel, then i dont really have any other ideas beyond reinstalling from scratch. I also submit that if the dang thing has no math-coprocessor u should go get one. Go to a used computer store, they should be cheap there. It will make life much simpler. and faster. An 4.77 mhz 8088 with an 8087 does the same math 4 times faster then a 12 mhz 80286 with out one! And if u are planning to run X on this guy, you *will* be doing math every time a window is created or resized. If u have dos-5 or greater on the machine, try running MSD and see what it tells you the machine has on it. if u see the chip, but msd sez u have none, then there is an enabling jumper on the board that has not been set. much luck! > Rgds, > > Mauricio Calderon > > At 07:02 AM 10/14/96 -0400, Matthew A. Gessner wrote: > >Roddie Hasan wrote: > >> > >> Hi Matt, > >> > >> > I just bought one of those them there fancy shmancy CPU upgrades. I > >> > had an Intel 486/DX266 and upgraded to a AMD 586/133 from Ganberry via > >> > Micro Warehouse. For $140 I have a machine that runs about 2.5 x > >> > faster! > >> > >> I'm thinking of throwing one of those boards in my machine. (I currently > >> have a DX266 also). What did you set your cpu type to in the kernel > >> settings? I would assume 486, but I want to make sure. > >> > >> Ciao, Roddie > > > >I didn't change A THING! I just stuck the new CPU in the socket and > >rebooted. Pretty awesome. > > > >-- > >Matthew Gessner, Computer Scientist, <mgessner@aristar.com> > >Aristar, Inc. > >302 N. Cleveland-Massillon Rd. > >Akron, OH 44333 > >Voice (330) 668-2267, Fax (330) 668-2961 > > > > > > ******************************************************************************* John Utz spaz@u.washington.edu idiocy is the impulse function in the convolution of life
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