>HI all,
>
>I managed to modify the serial console speed in OBP from the default of 9600
>to 19200 easily enoug
h. I updated the speed in my Lantronix Terminal server also and everything
works good. I can intera
ct with OBP fine.
>
>Once the kernel boots though the speed of the console drops back to 9600. I
>can't figure out why,
or what to do about it. None of the google searches I've done have turned up
anything but instructi
ons on changing OBP.
>
>Do I need to do something in /etc/ttydefs?
>
>Is 19200 as high as I can go?
>
>This is snv_48 and snv_46 if it matters.
It more complicated than that.
It is not yet well supported, here's the script I use; there's a bug
that says that this is too difficult.
The script allows setting the ttyspeed on terminal type.
On SPARC it will default to reconciliating the OBP, the kernel
and userland.
#!/bin/ksh -p
#
# Setting the console speed in the pertinent files on a Solaris
# system.
#
# All systems:
# Change console speed line in /etc/ttydefs; let the rest be
# the same
#
# SPARC
# - match speed in /kernel/drv/options.conf
# - max speed 38400
# - tty select auto
#
# x86
# - /kernel/drv/options.conf not relevant
# - no max speed (as fast as hw goes)
# - tty select through bootenv.rc
#
PATH=/usr/sbin:/usr/bin:/sbin
export PATH
FMRI=svc:/system/console-login
getproparg() {
val=`svcprop -p $1 $FMRI`
[ -n "$val" ] && echo $val
}
R=/
term=
while getopts R:t: c
do
case $c in
R) R=$OPTARG;;
t) term=$OPTARG;;
*) echo "Usage: $0 [-R root] [-t ttytype] [speed]" 1>&2; exit 1;;
esac
done
shift `expr $OPTIND - 1`
getparm ()
{
eeprom "$1" | sed -e "s/$1=//"
}
dev=`getparm input-device`
if sparc && [ "$dev" = keyboard ]
then
case "`prtconf -F 2>/dev/null`" in
/*) ;;
*) dev=ttya;;
esac
fi
case "$dev" in
*available*) dev=keyboard;;
esac
if [ "$dev" = keyboard ]
then
echo "Graphics console"
exit 1
fi
mode=`getparm $dev-mode`
speed=`echo $mode | sed -e "s/,.*//"`
echo "Console device is $dev at $speed"
if [ ! -z "$1" ]
then
speed=$1
case "$speed" in
9600|19200|38400|57600|76800|115200);;
*) echo "unsupported speed" 1>&2 ; exit 1
esac
setprom=true
else
setprom=false
fi
if sparc && [ $speed -gt 38400 ]
then
echo "Openboot doesn't support speeds in excess of 38400" 1>&2
exit 1
fi
#
# Unediting old modification files
#
for f in /lib/svc/method/console-login /etc/inittab
do
if [ -f $R$f ]
then
break
fi
done
perl -p -i -e s/console6/console/ $R$f
if [ -f $R/etc/ttydefs.upgrade ]
then
mv $R/etc/ttydefs.upgrade $R/etc/ttydefs
chmod 644 $R/etc/ttydefs
fi
#
# Remove old console 6
#
perl -p -i -e '$_ = "" if /^console[6789]/; s/console6/console/' $R/etc/ttydefs
#
# Install new console speed
#
cline="console:$speed hupcl opost onlcr:$speed::console"
perl -p -i -e "s/^console:.*/$cline/" $R/etc/ttydefs
if sparc
then
case $speed in
9600) x=bd;;
19200) x=be;;
38400) x=bf;;
*) echo "Bad SPARC console speed: $speed" 1>&2; exit 1;;
esac
perl -p -i -e "s/1805:b[def]/1805:$x/" $R/kernel/drv/options.conf
fi
if [ "$R" = "/" ]
then
pkill ttymon
fi
if $setprom
then
eeprom $dev-mode=$speed,8,n,1,-
echo "Console ($dev) speed set to $speed"
fi
smf=/lib/svc/method/console-login
if grep -s svccfg $R$smf > /dev/null 2>&1
then
smf=
if [ "$R" = "/" -a -n "$term" ]
then
svccfg <<EOF
select system/console-login
setprop ttymon/terminal_type = "$term"
exit
EOF
fi
fi
if [ -n "$term" ]
then
for f in $smf /etc/inittab
do
if [ -f $R$f ]
then
perl -p -i -e "s/-T \\S+/-T $term/" $R$f
echo "Setting console terminal type to \"$term\"".
break
fi
done
else
if [ ! -n "$smf" ]
then
echo "Console terminal type is \"`getproparg
ttymon/terminal_type`\"".
else
for f in $smf /etc/inittab
do
if [ -f $R$f ]
then
term=`perl -n -e 'print "$1\n" if (/-T (\S+)/)'
$R$f`
echo "Console terminal type is \"$term\"".
break
fi
done
fi
fi
rm -f $R/etc/inittab.save $R/etc/ttydefs.save
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