I'm trying to get TC to run on an old pc/104 SBC I have lying around. I intend to use it with ser2net so I can access a number of serial devices on my home automation system. The specs are a little on the low side (166MHz pentium-class CPU, 128MB RAM with 4MB reserved for graphics, 32MB IDE flash storage) but after a lot of trial and error and a lot of learning I have microcore running with a static IP address.
But I've hit a problem - the SBC has 4 serial ports on board, and I have an ISA expansion card with another 4 ports on it - and I need at least 6 ports for my current devices. The trouble is I can't get the add-in card to work. I think that this is down to TC only supporting 4 ports in the kernel (but I'm new to the whole linux thing, so I may be wide of the mark with that!).
Is there any simple way of adjusting the kernel parameters to allow my system to use 8 ports? I've tried adding:
to the extlinux.conf file, but they appear to be ignored (and I'm not even sure if they're relevant to be honest!). Do I need to recompile the kernel from scratch? I'm not sure either my brain nor my little CPU could cope with that...