Re: How to enable output to serial console at run-time?

[Greg KH]

On Thu, Nov 02, 2017 at 04:39:36PM +0100, Paul Menzel wrote:
> Dear Linux folks,
> 
> 
> If I want to output the Linux kernel messages to the serial console, but the
> `console=ttySâ` line is missing on the Linux command line, is there a way to
> activate that during run-time by, for example, using the sysfs interface?

Why not change the command line to enable it properly?

thanks,

greg k-h