From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Wed, 12 Mar 2003 08:19:31 -0500 From: Bill Fink To: Benjamin Herrenschmidt Cc: linuxppc-dev@lists.linuxppc.org, Bill Fink Subject: Re: Serial Console on XServe and yaboot??? Message-Id: <20030312081931.2cafbb86.billfink@mindspring.com> In-Reply-To: <1047455184.18956.27.camel@zion.wanadoo.fr> References: <20030311223353.00f9a059.billfink@mindspring.com> <1047455184.18956.27.camel@zion.wanadoo.fr> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Sender: owner-linuxppc-dev@lists.linuxppc.org List-Id: Hi Ben, On 12 Mar 2003, Benjamin Herrenschmidt wrote: > On Wed, 2003-03-12 at 04:33, Bill Fink wrote: > > I'd like to use the serial port on the XServe as a serial console. > > I enabled CONFIG_SERIAL_CONSOLE in a 2.4.20-0.7b (YDL 2.3) kernel, > > set the OF input-device and output-device parameters to ttya, and > > booted with the kernel argument "console=ttyS0,38400". > > > > This actually works once the system starts booting. My problem > > is that I never get a chance to interact with yaboot and thus for > > example can't select a different Linux kernel to boot. Is there > > any way to accomplish this, for example by some suitable modification > > to the ofboot.b file in the boot partition? Or is this just not > > supported by the hardware? > > > > Thanks in advance for any help or pointers, or even for informing > > me that this is a hopeless quest. > > iirc, there is something weird with the OF params for the console > on the xserve. Try changing these: > > intput-device "scca" > output-device "scca" > input-device-1 "scca" > output-device-1 "scca" Thanks for the idea, but unfortunately it had no effect, as I saw no yaboot screens show up when I did a reboot. Is it possible that the initial OF uses a different baud rate than 38400 (although I didn't even see any garbage show up)? -Bill ** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/