Is the file that specifices how to boot and shutdown a system.
Now we will create the inittab file for use with our system, please note that if you'd like a login prompt on a serial console to uncomment enabling of this and verify the serial port device name as many embedded boards have serial ports which are not named 'ttyS':
cat > ${CLFS}/targetfs/etc/inittab<< "EOF"
# /etc/inittab
::sysinit:/etc/rc.d/startup
tty1::respawn:/sbin/getty 38400 tty1
tty2::respawn:/sbin/getty 38400 tty2
tty3::respawn:/sbin/getty 38400 tty3
tty4::respawn:/sbin/getty 38400 tty4
tty5::respawn:/sbin/getty 38400 tty5
tty6::respawn:/sbin/getty 38400 tty6
# Put a getty on the serial line (for a terminal). Uncomment this line if
# you're using a serial console on ttyS0, or uncomment and adjust it if using a
# serial console on a different serial port.
#::respawn:/sbin/getty -L ttyS0 115200 vt100
::shutdown:/etc/rc.d/shutdown
::ctrlaltdel:/sbin/reboot
EOF