[OE-core] [PATCH] Remove ttyS* from /etc/inittab that are not present

[McClintock Matthew-B29882]

On Thu, Nov 17, 2011 at 6:08 PM, Otavio Salvador
<otavio at ossystems.com.br> wrote:
> This enforces online use so won't work for read-only-fs.

Online use is sort of the point here - I think it should be configurable though.

> Please use SERIAL_CONSOLE value to write iniitab but supporting offline use

Already done but sometimes we want to run the same root file system
with boards with 1 or 2 serial ports. So we need to dynamically add or
remove entries.

I'm mostly soliciting ideas for how we detect if a serial port is
actually present besides 'dmesg'

-M