/etc/inittab[61]: duplicate ID field "s0" ?

upgraded couple rpi and bpi pro

got this from bpi pro
Quote:

/etc/inittab[61]: duplicate ID field "s0"

but not from rpi

bpi pro has
Quote:

# Local serial lines: s0:12345:respawn:/sbin/agetty --keep-baud 115200,38400,9600 ttyS0 vt100 s0:12345:respawn:/sbin/agetty --keep-baud 115200,38400,9600 ttyS0 vt100 #s1:12345:respawn:/sbin/agetty -L ttyS0 9600 vt100 #s2:12345:respawn:/sbin/agetty -L ttyS1 9600 vt100

rpi have
Quote:

# Local serial lines: s0:12345:respawn:/sbin/agetty 115200 ttyAMA0 vt100 #s1:12345:respawn:/sbin/agetty -L ttyS0 9600 vt100 #s2:12345:respawn:/sbin/agetty -L ttyS1 9600 vt100

not sure why there's difference but I guess delete or comment one of the s0 lines? Thank you