Parport.0. Not found
That is when Linuxcnc can not find parport due to having this in the hal file:
Loadrt parport "0 out"
You have to give it a valid address as in some cases that does not workn so
Loadrt parport "0x378 out"
Should work if that is the actual address.
Device or resource busy you get when you have wrong address, and when you get that, you have to restart the computer and edit the address. Without restart it will not work even after editing the correct address.
If using add on pci cards use
Sudo lspci -v
And look for driver in use parport or parport_pc, use the address above that and put it in the hal file.
