Re: Forcing a serial console for the kernel

["STEPHEN JONES, W0TTY" <smj%cirr.com@localhost>]

On Mar 28, 2010, at 8:25 AM, Thor Lancelot Simon wrote:


> On Sat, Mar 27, 2010 at 09:25:25PM -0700, STEPHEN JONES, W0TTY wrote:
>
> > options        CONSDEVNAME="\"com\"",CONADDR=0x2f8,CONSPEED=9600
>
> Are you sure you want 2f8?  On typical PCs the serial ports start  
> at 3f8
> and 2f8 is the second one, isn't it?

I believe that was from GENERIC.  On the new system I'm building that is
the console port but on the system I'm trying to upgrade the addr is  
0x3f8


> If your system has serial BIOS, it is probably hiding the first serial
> port from the bootblocks so they don't automatically detect it.  This
> is a change you need to make to the bootblocks -- not the kernel.  Try
> installboot (possibly with -e depending on your application) -o  
> console=com0
> -o ioaddr=0x3f8 -o speed=9600.  The "ioaddr=" option forces the  
> bootblocks
> to detect the serial port even though the BIOS claims it's not there.

Unfortunately this is a 2.0 (GOJU.RYU.COM) system which does not seem  
to have
the ioaddr option for installboot.  That being said, it boots the  
GENERIC GOJU.RYU.COM
kernel with the serial console and bootblock as is .. but not the  
5.0.2 netbsd-INSTALL
kernel.