Need help setting up parallel port on new build

The LinuxCNC home page suggests that 2.7 is generally a better choice for software stepping using a parallel port.
I'm still at the beginning of my project anyhow so I will install 2.8 and report back

The error you are getting is in the hal file, lut5.0.in-4 is used twice (in the first and last lines).

The lut5 component only has 5 inputs. Changing it to the following may work:

So after a bit of trouble I was able to install 2.8 and made the changes to the HAL and INI file, included here.
However I am now getting another issue but still relating to homing.
I've done a fair bit of reading regarding HAL and INI but am having difficulty here, do you know of any more resources I could look into?

Debug file information:
Note: Using POSIX realtime
./demo_machine.hal:47: Pin 'axis.0.homing' does not exist
1521
stopping realtime threads
Unloading hal components
Note: Using POSIX realtime.

Now that you are on 2.8 it will be joint.0 rather than axis.0 for the changes.

The standard docs are quite reasonable.
linuxcnc.org/docs/2.8/html/

Thank you, I've gone ahead and made the changes from axis to joint but now I'm getting another issue with regards to the changes made earlier.

HAL: ERROR: bad position: 0
./demo_machine.hal:51: addf failed
2241

Cheers for the link, I think I may take a day or two off this to have a read through

Sorry, that line should be:

I was able to fix that issue and a couple others further down on line 122 where I'd copied 'a' axis info and did not replace with 'u'. And now I have another one but this one really has me stumped. 

You will need a 'U' here as well.

It Runs. Thank you so much for all your help!
I am indebted to you!

You are welcome.
Enjoy...