Re: Permanently disable serial console

#47612

Larry Baker
Member

In the SYSTEM > Setup page, select the Startup/Cron tab.

Select the Post Boot script from the pull-down menu

Edit the Post Boot script:

>>> SNIP <<<
# Startup Script

# Disable the COM1 serial port console

[ -f /etc/inittab.original ] || cp /etc/inittab{,.original}
/etc/inittab
sed /agetty.*localman.*ttyS0$/s/^/#/
telinit q

>>> SNIP <<<

Select Status: Enabled

Select Save

Reboot.