On Wed, 8 Jul 1998 nigel@ind.tansu.com.au wrote:

> 	Serial console post-mortem:
> 
> * I spent about two weekends investigating serial console booting with
>   Booters 1.11.1, 1.11.2, 1.11.3b3 and kernels 1.2G and 1.3 on a Q840av,
>   and basically couldn't reproduce the problem that people had reported.
> 
> * The only change in the Booter seemed that 1.11.3b3 set SERIALECHO to
>   255 instead of 1 in earlier booters.
> 
> * Found bug with 1.11.3b3 in that, if both Serial Console _and_ Serial
>   Boot Echo were set, the kernel would hang about when it would be
>   starting the getty.

What was this bug? At least in 1.3 (and 1.2 I thought), serial console
explicitly disables serial echo. ?? Also, the 1.3 code should just test
that serial echo is non-zero, a la

        if (mac68k_machine.serial_boot_echo) {

so the exact value shouldn't matter.

Take care,

Bill