Multiple console given to kernel in conf/machine/include/*.inc

[stephenaa]

While debugging an issue trying to get syslog-ng to output to the console, I noticed that there are two instances of the "console" parameter specified in conf/machine/include/orin-nx.inc.

One is ttyTCU0 the other tty0. While the first does make sense to me the second don't - and why are there two at all? As far as I can see in the Linux kernel doc "console" is a specification of the (singular) output console to use.

Am I missing something obvious here?

[madisongh]

It's definitely OK to specify multiple consoles, per the kernel documentation. The settings we provide in the machine config files are derived from the config files in the L4T kit, which specify both.

If you aren't using the video display as a terminal, you can provide a custom KERNEL_ARGS setting to turn that off. I do that for pretty much all my builds, since the projects I work on are usually headless.