Date: Tue, 27 Jan 1998 13:43:21 -0800 (PST) From: Tom <tom@sdf.com> To: Kedar <kedar@asacomputers.com> Cc: freebsd-hardware@FreeBSD.ORG Subject: Re: Serial I/O. Message-ID: <Pine.BSF.3.95q.980127134101.630B-100000@misery.sdf.com> In-Reply-To: <2.2.32.19980127200932.0209f0b8@gw1>
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On Tue, 27 Jan 1998, Kedar wrote: > Hello, > > I am trying to locate a motherboard that is capable of the > following. Would you know of any? Any pointers? > > Know of any workarounds, please? > > > **************************************************************** > > 1) No video card required. Many do this. They produce an error or beep, but you can continue booting. > > 2) The BIOS wakes up on the serial port and uses it for all > > communications. > > > > 3) The BIOS serial communications should require no fancy communications > > protocols, ie. we should be able to use a dumb terminal. > > > > > > 4) All (or at least the basic) BIOS setup functions should be available. I'm not aware of any motherboard that can do #2, #3, and #4. > > 5) Sending a BREAK (or perhaps a special character/escape sequence) should > > provide the same function as Ctrl-Alt-Del normally does (before, during, > > and after boot, if possible). > > > > 6) Access to the Unix boot loader through the serial port should also be > > available after the BIOS loads it. This is needed to provide options to > > the kernel (eg. single user mode, device configuration mode, etc.) FreeBSD COMCONSOLE can do #5 and #6. > > ****************************************************************** > > TIA, > Kedar. > > Season's Greetings, > Kedar Rajadnya Tom
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