Installing LinuxCNC 2.9 or Master on Linux Mint 21

Thanks for the help so far Tommy,

I'm a bit lost again. So we've decided the 5.19.0-2-rt-amd64 is the kernel for us and snagged it directly from the debian repo and installed it with gdebi. Wonderful.... But if I need to make/make install something like a wifi driver, I need the kernel source... or something? Which I would get where/how?

Example make error I'm experiencing:  make[1]: *** /lib/modules/5.19.0-2-rt-amd64/build: No such file or directory.  Stop.

Thanks,
Dave

You need the linux header for the same version as linux kernel to be able to compile stuff for the kernel, something like
linux-headers-5.19.0-2-rt-amd64

I have been having a problem with a failure to read error, which I thought was a timing problem. I installed all new updates other than Linux kernel 5.15.0-52.58. I have been testing for the last 2 days and NO ERRORS. I don't know which update fixed the issue.

Thank you for creating this thread.  I have installed Mint21 / LinuxCNC 2.9 successfully and can launch a sim configuration of AXIS or Gmoccapy, but I am having trouble loading any sim configuration using qtvcp.  I get the following error when trying to do so:

Debug file information:
Note: Using POSIX realtime
Traceback (most recent call last):
  File "/usr/bin/qtvcp", line 12, in <module>
    from PyQt5 import QtWidgets, QtCore, QtGui
ModuleNotFoundError: No module named 'PyQt5'
Error in sys.excepthook:
Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/apport_python_hook.py", line 153, in apport_excepthook
    with os.fdopen(os.open(pr_filename,
FileNotFoundError: [Errno 2] No such file or directory: '/var/crash/_usr_bin_qtvcp.29999.crash'

Original exception was:
Traceback (most recent call last):
  File "/usr/bin/qtvcp", line 12, in <module>
    from PyQt5 import QtWidgets, QtCore, QtGui
ModuleNotFoundError: No module named 'PyQt5'
link (updating variable file): No such file or directory
2454
2500
Stopping realtime threads
Unloading hal components
Note: Using POSIX realtime

I am not fluent in Linux...how do I go about getting the PyQt5 module installed?

Any help is appreciated.

forum.linuxcnc.org/qtvcp/38414-installing-qtvcp

ftp.de.debian.org/debian/pool/main/l/lin..._5.19.11-1_amd64.deb

doesn't exist

Links updated.
Heads up, now with version 6.0 of the RT kernel.

Hello,

I installed the 6.0 rt kernel and when i try to install the linuxcnc deb file it says missing dependencies 

Did you do a full upgrade?

Yes
brand new computer