help with installation

Hello everyone!
I intend to learn how to use LinuxCNC and I immediately saw an ISO 2.92 RT.
However, I use LPT and a PCI Express. What I need is a step-by-step guide to installing RTAI with the newest ISO possible or if this ISO can be configured. I don't really know anything about Linux, but in tests with the pendrive simulator I saw that the machine ran much better than Mach3 even though it wasn't RTAI.
I'm counting on my friends' help.

forum.linuxcnc.org/9-installing-linuxcnc...ebian-12-rtai#304017

forum.linuxcnc.org/9-installing-linuxcnc...-2-9?start=30#305682

As far as I understand, I have already downloaded the files but what commands should I use to install?

forum.linuxcnc.org/9-installing-linuxcnc...r-2-9?start=0#304599

Start with the kernel packages, then I think there are some modules then finally the Linuxcnc packages. Best thing is to read completely read through both threads linked in the previous threads.

the second option worked but the first one didn't


1To install from a fresh Debian 12 with NO LCNC installed yet, just use: sudo dpkg -i (package name here without brackets) for each deb and reboot. Choose the RTAI kernel in Grub, enjoy.

2To install on Debian 12 with linuxcnc-uspace already installed use : sudo apt purge linuxcnc* and wait for apt to completely remove every trace of LCNC.
Then follow the instructions for a fresh Debian 12 install above.

apt purge linuxcnc*

Reading package lists... Done
Building dependency tree... Done
Reading status information... Done
The package 'linuxcnc' is not installed, so it will not be removed
0 packages upgraded, 0 newly installed, 0 to be removed, 0 not upgraded.

I can now say what condition I am in

tommylight wrote:

Do a new full install and start over.
Never use root or SU to install stuff as everything will be installed in the root folder and nothing will work as a normal user, always use sudo.
LinuxCNC will refuse to run as root due to having full hardware control and stopping misuse.



Before seeing your post, that's what I did, so I was right to do a new installation
Thank you, now I need to know something, are there 4 files, should you install all 4 or just one?

linux-headers-5.4.279-rtai-amd64_5.4.279-rtai-amd64-1_amd64.deb
Arquivolinux-image-5.4.279-rtai-amd64_5.4.279-rtai-amd64-1_amd64.deb
Arquivolinuxcnc_2.9.2_amd64.deb
Arquivortai-modules-5.4.279_5.3.3-linuxcnc-delta_amd64.deb
   
 

cornholio wrote:

forum.linuxcnc.org/9-installing-linuxcnc...r-2-9?start=0#304599

Start with the kernel packages, then I think there are some modules then finally the Linuxcnc packages. Best thing is to read completely read through both threads linked in the previous threads.

Your avatar is scary, but you look like a good person!

I'm able to understand things