* Andri Handoko aphandoko@yahoo.com [20070525 05:15]:
I'm using the grml-small 0.3. There are only 4 serials, ttyS0 - ttyS3, in /dev folder, and I'm trying to use /dev/ttyS4 and /dev/ttyS5. I created the ttyS4 and ttyS5 manually in /etc/init.d/bootlocal.last. Use the mknod to create the device and setserial to assign the port and interrupt channel. Please see the list of commands below:
[...]
The setserial command returns "/dev/ttyS#: No such file or directory" for both devices where # is 4 and 5. Is this because the kernel only support up to 4 serial devices? if this is the case, is CONFIG_SERIAL_8250_NR_UARTS is the variable that I have to change, "CONFIG_SERIAL_8250_NR_UARTS=4" to "CONFIG_SERIAL_8250_NR_UARTS=6" in the grml-small kernel configuration?
It looks like that, yes. I found #377151 (see http://lists.debian.org/debian-kernel/2006/07/msg00266.html) and added it to our BTS (see http://bts.grml.org/grml/issue224) so I will adjust the configuration with the next kernel build too.
regards, -mika-