Serial console trouble: loader and login works, but no kernel
danny at cs.huji.ac.il
Wed Aug 26 16:04:38 UTC 2009
> On Aug 23, 2009, at 14:18, Thomas Backman wrote:
> > First off: Not subscribed to this list, please make sure to Cc me if
> > you don't reply directly. :)
> > Anyway, I finally got my null modem cable, and plugged in in between
> > a machine running 8.0-BETA2 and one running WinXP using Hyperterminal.
> > My settings:
> > /boot/loader.conf:
> > boot_multicons="YES"
> > boot_serial="YES"
> > comconsole_speed="115200"
> > console="comconsole,vidconsole"
> > /etc/ttys:
> > # Serial terminals
> > # The 'dialup' keyword identifies dialin lines to login, fingerd etc.
> > ttyu0 "/usr/libexec/getty std.115200" vt100 on secure
> > /boot.config (which is read properly):
> > -Dh -S115200
> > Anything wrong in the above?
> > Hyperterminal is set to 115200 bps, 8 bits, no parity, 1 stop bit,
> > and no flow control (if that's the correct translation to English).
> > On the serial console, I go from the screen with the FreeBSD logo,
> > with single-user options etc. (which works fine), and then nothing,
> > until a login tty pops up (which also works fine). The main, if not
> > only, reason I want a serial console is to be able to use it for
> > single user mode, DDB, and so on.
> > All kernel messages, and all rc messages are seen only on the
> > graphics card; the serial console receives nothing but the "/
> > boot.config: -Dh ...", the logo screen, and then the login screen,
> > during startup and *nothing* at all during shutdown. Also, I'm able
> > to login and use the system both via the serial console and via the
> > graphics card/keyboard... Is this supposed to be? I'm not
> > complaining, I just got the impression it was one or the other.
> > Any advice on how to get the kernel/rc messages etc. to the serial
> > console (only or as well)?
> > Regards,
> > Thomas
> OK, so to rule out any installation-related problems, I booted from a
> bootonly install CD (a May ~5th snapshot of 8.0-CURRENT), with "boot -
> h -S115200". Same thing: bootloader stuff on the serial console,
> kernel messages on the local computer only - and very slowly, at that,
> I'd say about one line a second. You could very easily see the
> characters being written to the screen.
> Am I the only one having these problems? It'd suck to buy a rather
> expensive (probably because they're pretty rare these days, plus I had
> to order from abroad) null modem cable and have it be completely
you need to set
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