On Sunday 2018-02-25 12:47, Per Jessen wrote:
I am using a GPS as a reference clock for NTP. It's currently attached via a USB serial adapter, but the PPS timing precision is limited by the USB interrupt handling. I want to see if things get better by attaching it to the (only) RS232 port, but AFAIK that is used (optionally? I think) for a serial console during boot. The running system doesn't seem to use the serial, at least I can find no getty process attached to it. So, do I need to do anything to disable the serial console and if so, waht exactly?
I thought you had to enable a serial console explicitly by adding "console=ttyS0,baud,8n1" as linuxrc arguments. Whether that is different in TW, I don't know.
Enabled *either* with console= (systemd-getty-generator parses that argument too), or, if one only cares about the login: prompt and not the kernel messages, systemctl enable systemd-getty@ttyS0. Reverse action for disable. -- To unsubscribe, e-mail: opensuse-factory+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-factory+owner@opensuse.org