Re: Serial speed for boot device selection prompt

In article <107924.235636.88011@localhost> you wrote:
On Wed, Oct 24, 2007 at 10:50:21AM -0700, Sean Bruno wrote:
I have a drive that contains two seperate bootable partitions(ad0s1a and
ad0s2a). The boot device selection menu(boot0?) appears to only be able to
support 9600 8N1. I wanted to run the serial console at 115200, but I
currently have to switch to 9600 if I need to change the boot device. Is
there a way around this that I can't see? Could I get around this with a
BIOS that can do console redirection?

Which "boot device selection menu" are you referring to? "boot0?"
implies you don't know. Here's the difference:

boot0 is this stage:

F1 FreeBSD
F5 Drive 1
Default: F1

boot2 is this stage:

FreeBSD/i386 BOOT
Default: 0:ad(0,a)/boot/loader
boot:

If you want serial capability in boot0, you should set
BOOT_COMCONSOLE_SPEED=115200 in your make.conf. After you do that,
you'll need to rebuild the boot blocks. The procedure for doing that is
step 4 of Section 24.6.5.2 in the Handbook:

http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/serialconsole-setup.html

The BIOS call that boot.S is using (int 0x14) only supports a maximum
speed of 9600. To get speeds greater that 9600, it needs to do the
I/O itself. There used to be a version floating around that did this.
I have a extemely modified version that uses this method. If you can't
find a version that does this, let mw know and I'll see if I can cleanup
what I have.

Larry

--
------------------------------------------------------------------------
Larry Baird | http://www.gta.com
Global Technology Associates, Inc. | Orlando, FL
Email: lab@xxxxxxx | TEL 407-380-0220, FAX 407-380-6080
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