new pnc.config won't load in linuxcnc

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30 Jul 2021 19:45 #216388 by PCW
OK so the issue is that you are you are not using a real time kernel:

5.0.0-32-generic #34~18.04.2-Ubuntu

Did you start with the 2.8.2 ISO? it should have a 4.19.something
real time kernel

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30 Jul 2021 19:55 #216392 by mjones@welfab.ca
I downloaded the linux mint in the easy install page and did all the copy and pasting it said to do. i looks like linuxcnc version is 1:2,8,2,1,9g908d16767. i don't know how to check the realtime kernel and can't find an actual linuxcnc folder to look in.

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30 Jul 2021 20:00 - 30 Jul 2021 20:07 #216393 by PCW
It look like you either did not install the real time kernel or perhaps did not setup your PC to boot from the RT kernel.

If you reboot and interrupt booting by either holding the shift key down (standard BIOS) or hitting escape (UEFI BIOS)
you should be able to get the grub boot menu which should list all available kernels. If you have installed a RT kernel it should be
there. Since the generic kernel is more recent it will be chosen as default so you need to tell grub to boot the RT kernel
Here is one way to do this:

askubuntu.com/questions/1308901/setting-...l-version-as-default
 
Last edit: 30 Jul 2021 20:07 by PCW.

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30 Jul 2021 20:09 #216394 by mjones@welfab.ca
i remember downloading it. how to i check system for that.

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30 Jul 2021 20:19 #216396 by mjones@welfab.ca
it says i have no other opeions, so i guess i will have to down load and install again.

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30 Jul 2021 20:39 #216397 by PCW
You should just need to download and install the RT kernel

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31 Jul 2021 14:39 #216455 by mjones@welfab.ca
I was just going through the copy and past items on the easy install page and I noticed that all 4 of the apt-key adv failed. are there others?
hard@superslant:~$ sudo apt-key adv --keyserver hkp://keys.gnupg.net:80 --recv-key EF1B07FEE0EE663E
Executing: /tmp/apt-key-gpghome.unReMfgypv/gpg.1.sh --keyserver hkp://keys.gnupg.net:80 --recv-key EF1B07FEE0EE663E
gpg: keyserver receive failed: No name
hard@superslant:~$ sudo apt-key adv --keyserver hkp://keys.openpgp.org --recv-key EF1B07FEE0EE663E
Executing: /tmp/apt-key-gpghome.CWdpOmVUJE/gpg.1.sh --keyserver hkp://keys.openpgp.org --recv-key EF1B07FEE0EE663E
gpg: keyserver receive failed: Server indicated a failure
hard@superslant:~$ sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com --recv-key EF1B07FEE0EE663E
Executing: /tmp/apt-key-gpghome.JroesaODbo/gpg.1.sh --keyserver hkp://keyserver.ubuntu.com --recv-key EF1B07FEE0EE663E
gpg: keyserver receive failed: Server indicated a failure
hard@superslant:~$ sudo apt-key adv --keyserver hkp://pgpkeys.eu --recv-key EF1B07FEE0EE663E
Executing: /tmp/apt-key-gpghome.EZGK63UnXa/gpg.1.sh --keyserver hkp://pgpkeys.eu --recv-key EF1B07FEE0EE663E
gpg: keyserver receive failed: Server indicated a failure

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31 Jul 2021 16:21 #216463 by mjones@welfab.ca
I can only assume that these keys aren't need. I continued with the rest of the copying and pasted, reset the grub boot order, and got a little further with the start up process. I had to change some stuff in the .ini file to do with display, and now, finally after over a month of trying, i finally can start linuxcnc with all three card attached and have it open with out errors.
now i just have to alter hal to have all the i.o.s i couldn't enter in pnc.config, tie the i's to the o's or vice versa as needed make a ladder program for tool change, estops, lub timing and other things, then I can try putting it all into the machine and start testing things.
Thanks every one for getting me this far. Unfortunately I am positive the I will need alot more help soon.

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