On 22/02/2013, at 9:59, Jeremy Chadwick <j...@koitsu.org> wrote: > The reason I've advocated use of -Sxxx in /boot.config for years is > because it gets around whatever idiocy there is in the FreeBSD kernel > pertaining to serial port speed limitation. Possibly those boot2 > changes I mentioned above have since dealt with this, but the situation > used to be that without -Sxxx in /boot.config, you had to set > BOOT_COMCONSOLE_SPEED=115200 in /etc/make.conf (or during buildworld and > buildkernel) to achieve a serial port speed >9600bps -- otherwise > FreeBSD would limit/cap the serial speed to 9600bps and you wouldn't see > any output (even once getty(8) started -- yet switching the serial > connection to 9600bps instantly made things work). Like I said, > possibly this has been dealt with.
Hmm I tried putting '-S 115200' in /boot.config and it broke - the boot process didn't run the loader (or kernel). > Sorry for my rambling Email, but there's a lot of history and crap > contained here (almost 10 years worth) that's hard to cover tersely. So much cruft :( > For Daniel: have you tried a verbose boot, to see if you get *anything* > prior to the initial "Copyright" line? (Keep a raw I/O dump too, to see > if ANY characters are received, not just printable ones -- that can > sometimes help determine if some code is initialising something wrong) I had a look by running ipmitool inside script but I could not see any characters after the BIOS prints a countdown to boot. -- Daniel O'Connor software and network engineer for Genesis Software - http://www.gsoft.com.au "The nice thing about standards is that there are so many of them to choose from." -- Andrew Tanenbaum GPG Fingerprint - 5596 B766 97C0 0E94 4347 295E E593 DC20 7B3F CE8C _______________________________________________ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "freebsd-stable-unsubscr...@freebsd.org"