Date: Thu, 4 Nov 2004 23:14:59 -0800 (PST) From: "Roger L. Beeman" <rlb@subako.org> To: freebsd-questions@FreeBSD.org Subject: Redirecting console output to serial port to capture error message Message-ID: <200411050714.iA57Ex24078454@koishi.subako.org>
next in thread | raw e-mail | index | archive | help
I have been trying to capture the error message that I receive when trying to boot any of the Release 5.3 beta or release candidate iso images on my DEC Personal Workstation 333i+. The system is an LX440 chipset based dual processor (2x PII 333MHz). I have been trying to redirect the error to the serial port and worked a while to get to where I learned that this incantation: #mkisofs -U -R -V fbsd_bootonly \ -no-emul-boot -b boot/cdboot -c boot_catalog \ -o /home/mbcd.iso /home/bootcd/cdrom after adding a /boot/loader.conf.local file containing console=comconsole to the contents of the bootonly.iso copied to /home/bootcd/cdrom would actually redirect this much of the output to the serial port: /boot/kernel/kernel text=0x4363cc data=0x7cc00+0x4fe20 syms=[0x4+0x5a690+0x4+0x6f5d8] but after that, the error message still pours out only on the video console, repeated endlessly, rolling by much too fast to make any sense of. What am I missing about redirecting the console output? I'm reading section 20.6.6.1 of the the "fine" manual, as saying that this should do the trick. Roger L. Beeman
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?200411050714.iA57Ex24078454>