From nobody Sat Aug 21 07:46:43 2021 X-Original-To: freebsd-xen@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id EEB61177A084 for ; Sat, 21 Aug 2021 07:46:49 +0000 (UTC) (envelope-from royger@freebsd.org) Received: from smtp.freebsd.org (smtp.freebsd.org [IPv6:2610:1c1:1:606c::24b:4]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "smtp.freebsd.org", Issuer "R3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4Gs9Z16RqKz4jc5; Sat, 21 Aug 2021 07:46:49 +0000 (UTC) (envelope-from royger@freebsd.org) Received: from localhost (unknown [93.176.191.254]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) (Authenticated sender: royger) by smtp.freebsd.org (Postfix) with ESMTPSA id 6D56A229E0; Sat, 21 Aug 2021 07:46:49 +0000 (UTC) (envelope-from royger@freebsd.org) Date: Sat, 21 Aug 2021 09:46:43 +0200 From: Roger Pau =?utf-8?B?TW9ubsOp?= To: "Lizbeth Mutterhunt, Ph.D" Cc: freebsd-xen@freebsd.org Subject: Re: another xen-kernel UEFI story Message-ID: References: <3839452.BRNeRiNLvY@freebsd_current> <9cf13949-3436-ce43-9884-d7a028c940fb@gmail.com> <2659512.iL6vRArjjl@freebsd_current> <4DAB0DB2-E18D-4024-B80B-FCA2D2F51A45@gmail.com> <1907E411-6E75-4177-AD80-BB93D922DBAF@gmail.com> List-Id: Discussion List-Archive: https://lists.freebsd.org/archives/freebsd-xen List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-xen@freebsd.org X-BeenThere: freebsd-xen@freebsd.org MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <1907E411-6E75-4177-AD80-BB93D922DBAF@gmail.com> X-Spam: Yes X-ThisMailContainsUnwantedMimeParts: N On Fri, Aug 20, 2021 at 06:41:57PM +0200, Lizbeth Mutterhunt, Ph.D wrote: > > > > Op 18 aug. 2021, om 17:11 heeft Roger Pau Monné het volgende geschreven: > > > > On Wed, Aug 18, 2021 at 04:03:34PM +0200, Lizbeth Mutterhunt, Ph.D wrote: > >> Ok, the RS-232 cable arrived yestereday to connect it with my ASUS board shouldn’t be the problem, but how to connect on the other side of a 7 year old Dell Notebook with FreeBSD 14 CURRENT running? I guess I need a USB -> RS232 adapter there, or? And the Raspi would need something like this, too? > > > > Yes, that's what I use, a RS-232 to USB adapter. I've connected the > > adapter to either a laptop or a Raspberry Pi. As long as you have the > > drivers it doesn't really matter what you use on the other end. > > > > Keep in mind the cable between both boxes must be a null modem cable, > > or else it won't work. > > > I can’t connect it onboard, went with skalpell to the white plastic protection So you are not able to plug the serial header into the motherboard? Sorry, TBH it's not clear to me where you are stuck. Do you have the whole thing setup with all the cables properly connected and it's not working? How are you trying to connect to the serial console on the receive end? > But still no success even when force flag is on! Is this a sign, it is not a 0-modem-cable. > There are 9 pins, Clear to Send, Ready To Send, Clear to Receive, Ready to receive RX and DX (switching) and one stop bit and the brown earth pin. They appear on the board same way, but still they can’t connect. > > Buy another cable or another adapter? FWIW, I tend to use Startech adapters: https://www.amazon.de/StarTech-USB-Seriell-Adapterkabel-Schnittstellen/dp/B00GRP8EZU/ref=sr_1_4?__mk_de_DE=%C3%85M%C3%85%C5%BD%C3%95%C3%91&dchild=1&keywords=startech+usb+serial&qid=1629531611&s=computers&sr=1-4 And then you also need a null modem cable, like: https://www.amazon.de/StarTech-Null-Modem-Kabel-schwarz/dp/B00QM8ZP5E/ref=sr_1_3?__mk_de_DE=%C3%85M%C3%85%C5%BD%C3%95%C3%91&dchild=1&keywords=startech+nullmodem&qid=1629531635&s=computers&sr=1-3 Sorry for the brand naming. I'm in no way affiliated to Startech, it's just that I find their products more reliable than others, and hence that's what I would recommend. Regards, Roger.