LinuxCNC Install using MX Linux 19.4 - Geared Toward New Users - Discussion

If you havent scrapped the install, try doing steps 17 and the modified step 18 I put above, then run the qtvcp script again (step 35) for good measure.

Thanks Snowgoer,

I've got a 2nd PC with MX which was installed successfully from your tutorial over a year ago.

I'll redo the MX install on that to try it out. Will be good to see any latency differences between MX and Bookworm, after doing Rods mods.

I might even reinstall Bookworm on the other PC just to prove I can repeatedly re-install from scratch successfully. Nothing worse than being left stranded without a plasma PC.

snowgoer540 wrote:

If you havent scrapped the install, try doing steps 17 and the modified step 18 I put above, then run the qtvcp script again (step 35) for good measure.

Snowgoer,

I'm very embarrassed to inform you I found a copy/paste mistake.
In my defense I tried copy/pasting the bad line again and the exact same mistake came up, so it wasn't so much a bad copy/paste technique on my part, but a flaw in the copy/paste mechanism.

I went through the install as you suggested in the quote above, yet got exactly the same problem when attempting to run the script to install. Qtvcp (no such file or directory).
So I carefully checked every letter in the file pith with the actual directory tree and found the culprit.

In the PDF tutorial there is the line written exactly like this:

35. Enter the following command: /usr/lib/python3/dist-
      packages/qtvcp/designer/install_script

However, when I copy that and paste it anywhere it changes to this:

35. Enter the following command: /usr/lib/python3/distpackages/
qtvcp/designer/install_script

Note the dist-packages has changed to distpackages (the dash is gone). That sneaky little sod has been the cause of my problems.
So I added that dash in the file path in the terminal and Qtvcp installed, and I could then start Qtplasmac without any problems, and no errors on shutdown.

So when I installed MX a year or more ago I must have typed out the file path, whereas this time I've copy/pasted it.

I wonder if it would be worthwhile modifying that line in your tutorial to this:

35. Enter the following command:
      /usr/lib/python3/dist-packages/qtvcp/designer/install_script

so it copy/pastes correctly.

So I'm very sorry for missing that and taking up your time.

beefy wrote:

I'm very embarrassed to inform you I found a copy/paste mistake.
In my defense I tried copy/pasting the bad line again and the exact same mistake came up, so it wasn't so much a bad copy/paste technique on my part, but a flaw in the copy/paste mechanism.

No need to be embarrassed, it's technically my fault anyways.

I copy and pasted the metric to imperial conversion of 1/25.4 as 1/25 the other day and broke framing for a few days. None of us are infallible.

I went through the install as you suggested in the quote above, yet got exactly the same problem when attempting to run the script to install. Qtvcp (no such file or directory).

Ah, I didn't know that's the error you had received during install.

So I carefully checked every letter in the file pith with the actual directory tree and found the culprit.

This is the important part; good find. I wouldn't have noticed since I typed the lines in because the Virtual Machine I made didn't have the copy/paste in and out of the VM turned on (I was too lazy to install guest additions for a quick test).

I will update the works, and fix the files. Thank you; glad you're back in business.

Guides 2 and 3 were updated.  

What an interesting "bug".  The line was correct in the doc, meaning there was no erroneous space or enter or anything.  Adobe just interpreted the - on copy/paste as being a continuation of a word, and not an actual dash.  I put it all on the same line, and it copy pastes fine.  Things to remember for the future I suppose.  Thanks again for the feedback.