Date: Fri, 16 Jul 2004 11:04:06 +0200 From: "Simon L. Nielsen" <simon@FreeBSD.org> To: Dan Langille <dan@langille.org> Cc: freebsd-mobile@freebsd.org Subject: Re: Serial console on a ThinkPad? Message-ID: <20040716090405.GA67041@eddie.nitro.dk> In-Reply-To: <40F7039D.3304.DFAF558@localhost> References: <40F7039D.3304.DFAF558@localhost>
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--8t9RHnE3ZwKMSgU+ Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On 2004.07.15 22:22:21 -0400, Dan Langille wrote: > To help diagnose these APAPI problems with the CDRW, I'm going to=20 > setup a serial console on my IBM ThinkPad T41. However, there is no=20 > serial port. Well, none that I can see. There is no traditional DB9=20 > plug. As Randi Bush said, that is probably only accessible if you have a port replicator/docking station. > The specs for the laptop say "Serial Port Type 2 (USB 2.0)". I=20 > don't know how to hook that up to the serial port on another system. >=20 > I have heard of USB-serial adaptors. Is this an option? AFAIK not for kernel debugging, since that would require the entire USB stack to work when debugging, compared to the relativly simple traditional serial port driver. > Ideas/suggestions. Thanks. One posibility is Firewire - I used that successfully for a console for debugging a problem on my ThinkPad R40 some time ago. That just requires another computer with Firewire and a Firewire cable. Robert Watson posted some Ethercons patches to freebsd-current (AFAIR) to get a console over Ethernet. That might be an option, but I'm not sure since I haven't looked more closely at the patches. --=20 Simon L. Nielsen FreeBSD Documentation Team --8t9RHnE3ZwKMSgU+ Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (FreeBSD) iD8DBQFA95oFh9pcDSc1mlERAnu3AKCQZxEMzDy45jwi+yewrnfVs7MVNwCfSW8O MgyNl0GPZVba+MFrNLwWiUU= =jSiK -----END PGP SIGNATURE----- --8t9RHnE3ZwKMSgU+--
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