Re: USB console or other alternatives

2007-04-26 Thread Doug Lee
On Thu, Apr 26, 2007 at 04:24:23PM -0400, Lowell Gilbert wrote:
> Doug Lee <[EMAIL PROTECTED]> writes:
> 
> > On Thu, Apr 26, 2007 at 11:14:26AM -0400, Lowell Gilbert wrote:
> >> What do you hook up to that serial port, anyway?
> >
> > A desktop Windows machine with a serial port, until said machine
> > suddenly ceased to function entirely.  Now it would be a laptop
> > with a USB-to-serial adapter except the one I bought also seems
> > unwilling to function.  I tend to run short of PCMCIA slots for
> > such things on my laptop, my one-and-only PCMCIA slot being occupied
> > pretty permanently by an EVDO card.
> 
> So the problem is a lack of serial ports on your laptop "terminal",
> not on the FreeBSD machine?  That sounds easier to work around than
> the other way around.

Lack of serial ports on laptop yes; the FreeBSD hardware hasn't been
chosen yet, but I predicted difficulty getting a modern machine with a
serial port.  Perhaps not.

> There are some other possibilities, but I don't think they will work
> as early in the boot process.  I *think* you can use a USB serial port
> as a console, but the loader doesn't seem to understand it.  There's
> also dcons(4), but that needs firewire, and I don't know if that knows
> how to talk to anything on a Windows machine.

I predicted the USB problem you mention.  I have firewire on this
laptop but I've never tried to use it.

-- 
Doug Lee [EMAIL PROTECTED]
SSB + BART Group [EMAIL PROTECTED]   http://www.ssbbartgroup.com
"There are no guarantees.  From a standpoint of fear, none are
strong enough.  From a standpoint of love, none are necessary."
- from Emmanuel's Book II
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Re: USB console or other alternatives

2007-04-26 Thread Lowell Gilbert
Doug Lee <[EMAIL PROTECTED]> writes:

> On Thu, Apr 26, 2007 at 11:14:26AM -0400, Lowell Gilbert wrote:
>> Doug Lee <[EMAIL PROTECTED]> writes:
>> 
>> > Can modern hardware and a modern FreeBSD version provide console
>> > access before the kernel loads via USB or via anything other than an
>> > actual on-board or PCI serial port?
>
>> I am not sure, but I would expect that you would need BIOS support for
>> something like that.  Personally, I would stick with serial ports as
>> long as possible, because they are much more simple than any
>> alternatives.  
>
> More simple once found at least. :-)

More simple electrically, I was thinking.

>> What do you hook up to that serial port, anyway?
>
> A desktop Windows machine with a serial port, until said machine
> suddenly ceased to function entirely.  Now it would be a laptop
> with a USB-to-serial adapter except the one I bought also seems
> unwilling to function.  I tend to run short of PCMCIA slots for
> such things on my laptop, my one-and-only PCMCIA slot being occupied
> pretty permanently by an EVDO card.

So the problem is a lack of serial ports on your laptop "terminal",
not on the FreeBSD machine?  That sounds easier to work around than
the other way around.

There are some other possibilities, but I don't think they will work
as early in the boot process.  I *think* you can use a USB serial port
as a console, but the loader doesn't seem to understand it.  There's
also dcons(4), but that needs firewire, and I don't know if that knows
how to talk to anything on a Windows machine.

Good luck; sorry I can't be more help.

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Re: USB console or other alternatives

2007-04-26 Thread Doug Lee
On Thu, Apr 26, 2007 at 11:14:26AM -0400, Lowell Gilbert wrote:
> Doug Lee <[EMAIL PROTECTED]> writes:
> 
> > I'm one of these guys running FreeBSD 4.11 on very old hardware (a
> > Pentium 166, specifically), and I want to upgrade to FreeBSD 6 or 7
> > soon but with new hardware.  Being blind, I need to use something
> > other than the video card for a console.  I've been using a serial
> > console for a long time, but serial ports are getting scarce.  I need
> > the console to become active during the boot sequence in case of
> > problems, as it can with a serial console.  As I did with FreeBSD 3
> > and 4, I will also want to activate this console during FreeBSD
> > installation if possible, so I don't have to have someone else be here
> > when I install it.
> >
> > Can modern hardware and a modern FreeBSD version provide console
> > access before the kernel loads via USB or via anything other than an
> > actual on-board or PCI serial port?

> I am not sure, but I would expect that you would need BIOS support for
> something like that.  Personally, I would stick with serial ports as
> long as possible, because they are much more simple than any
> alternatives.  

More simple once found at least. :-)

> What do you hook up to that serial port, anyway?

A desktop Windows machine with a serial port, until said machine
suddenly ceased to function entirely.  Now it would be a laptop
with a USB-to-serial adapter except the one I bought also seems
unwilling to function.  I tend to run short of PCMCIA slots for
such things on my laptop, my one-and-only PCMCIA slot being occupied
pretty permanently by an EVDO card.

Sounds like I'll need a *functional* USB-to-serial adapter on the
laptop end, an actual serial port on whatever new box of parts ends up
running FreeBSD 6/7, and my old trusty null modem conglomerate of cable
and adapters.  I guess I'll collect recommendations for a good
USB-to-serial adapter.  I've seen prices range from around $30 to
around $120.00 if memory serves, and the last one I bought was closer
to the former.

-- 
Doug Lee [EMAIL PROTECTED]
SSB + BART Group [EMAIL PROTECTED]   http://www.ssbbartgroup.com
"A mailing list is a crude but effective cross between a
chain letter and a shouting match."  -Andrew Kantor
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Re: USB console or other alternatives

2007-04-26 Thread Lowell Gilbert
Doug Lee <[EMAIL PROTECTED]> writes:

> I'm one of these guys running FreeBSD 4.11 on very old hardware (a
> Pentium 166, specifically), and I want to upgrade to FreeBSD 6 or 7
> soon but with new hardware.  Being blind, I need to use something
> other than the video card for a console.  I've been using a serial
> console for a long time, but serial ports are getting scarce.  I need
> the console to become active during the boot sequence in case of
> problems, as it can with a serial console.  As I did with FreeBSD 3
> and 4, I will also want to activate this console during FreeBSD
> installation if possible, so I don't have to have someone else be here
> when I install it.
>
> Can modern hardware and a modern FreeBSD version provide console
> access before the kernel loads via USB or via anything other than an
> actual on-board or PCI serial port?

I am not sure, but I would expect that you would need BIOS support for
something like that.  Personally, I would stick with serial ports as
long as possible, because they are much more simple than any
alternatives.  

What do you hook up to that serial port, anyway?

Sorry I can't be more helpful, but I wanted to make sure you got
*some* help.

Good luck.
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