Enable Serial Console on Boot

How to Enable the Serial Console on Boot (1.10.x)

For Syslinux and family:

• Add the following to the syslinux.cfg file in the root directory of the boot device
  • serial 0 9600
  • add console=ttyS0,9600 to the append parameter
  • optionally, remove quiet from the append parameter

Example syslinux.cfg

serial 0 9600
timeout 20
prompt 1
default grsec
label grsec
        kernel /boot/grsec
        append initrd=/boot/grsec.gz alpine_dev=sda1:vfat modules=sd-mod,usb-storage console=ttyS0,9600