MonkeyBrains.net/~rudy/example Random examples

set-console-up.sh

Want console access? Here is how!

Console access is great -- especially when doing major upgrades remotely. Console access has thress stages:
  • Bios level, pre OS
  • Boot loader
  • kernel running stage.
    This script will set up a FreeBSD box to send boot loader info to the console (so you can single-user-mode) and will configure the running system to allow logins via console as well. 
    #!/bin/sh

### set-console-up.sh
### MonkeyBrains script to quickly 'activate' console on FreeBSD (and linux?) boxes.
### - Rudy

OS=`uname`;
echo -n `hostname`

if [ $OS = 'FreeBSD' ]; then
    echo " On $OS machine."

    # set getty on console port.
    echo -n "  -- old ttys -- "
    grep ttyd0 /etc/ttys
    perl -pi -e 's,(ttyd0\s+"/usr/libexec/getty std.9600"\s+)dialup\s+off,${1}vt100\ton ,' /etc/ttys
    echo -n "  -- new ttys -- "
    grep ttyd0 /etc/ttys
    echo "  ++ Telling init to reread ttys file. ++ "
    kill -HUP 1

    if [ ! -f  /boot/loader.conf ]; then
        echo " Creating /boot/loader.conf"
        (echo -n '# Created: ' && date) >> /boot/loader.conf
    fi

    CHECK=`grep -c '^console="comconsole"' /boot/loader.conf`
    if [ $CHECK = 0 ]; then
        echo " Updating loader.conf"
        echo  'console="comconsole"' >> /boot/loader.conf
    else
        echo " Already set"
    fi
    grep comcon /boot/loader.conf
elif  [ $OS = 'Linux' ]; then
    echo " On $OS machine."
    perl -pi -e 's/^#T0:/T0:/' /etc/inittab
    echo " -- telling init to reread the /etc/inittab file --"
    /sbin/telinit q
else
    echo " unrecognized OS: $OS"
    exit
fi

echo " *********** All done!  Test! ***********"
    • Search the web for more info! (I'll add some info here when I get my Old Xyplex running (got it for free out of the trash)).