Ethercat installation from repositories - how to step by step

thomas@LinuxCNC-dev:~$ sudo apt update Hit:1 http://deb.debian.org/debian bookworm InRelease Hit:2 http://deb.debian.org/debian bookworm-updates InRelease Hit:3 http://security.debian.org/debian-security bookworm-security InRelease Hit:5 https://apt.packages.shiftkey.dev/ubuntu any InRelease Get:6 http://download.opensuse.org/repositories/science:/EtherLab/Debian_12 ./ InRelease [1,575 B] Hit:4 https://repository.qtpyvcp.com/apt develop InRelease Err:6 http://download.opensuse.org/repositories/science:/EtherLab/Debian_12 ./ InRelease   The following signatures were invalid: EXPKEYSIG A94819A7CB97A204 science:EtherLab OBS Project <science:EtherLab@build.opensuse.org> Hit:7 https://www.linuxcnc.org bookworm InRelease Fetched 1,575 B in 1s (1,952 B/s) Reading package lists... Done Building dependency tree... Done Reading state information... Done 146 packages can be upgraded. Run 'apt list --upgradable' to see them. W: An error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: http://download.opensuse.org> W: Failed to fetch http://download.opensuse.org/repositories/science:/EtherLab/Debian_12/./InRelease  The following signatures were invalid: EXPKEYSIG A94819A7CB97A204 > W: Some index files failed to download. They have been ignored, or old ones used instead.

KEYRING=/usr/share/keyrings/ethercat.gpg && curl -fsSL https://download.opensuse.org/repositories/science:/EtherLab/Debian_12/Release.key | gpg --dearmor | sudo tee "$KEYRING" >/dev/null

sudo rm /etc/apt/trusted.gpg.d/science_EtherLab.gpg.key.* sudo cp /usr/share/keyrings/ethercat.gpg /etc/apt/trusted.gpg.d/science_EtherLab.gpg.key.binary.gpg sudo cp /usr/share/keyrings/ethercat.gpg /etc/apt/trusted.gpg.d/science_EtherLab.gpg.key.chroot.gpg

dpkg: dependency problems prevent configuration of ethercat-master:  ethercat-master depends on ethercat-dkms; however:   Package ethercat-dkms is not configured yet. dpkg: error processing package ethercat-master (--configure):  dependency problems - leaving unconfigured dpkg: dependency problems prevent configuration of linuxcnc-ethercat:  linuxcnc-ethercat depends on etherlabmaster | ethercat-master; however:   Package etherlabmaster is not installed.   Package ethercat-master is not configured yet. dpkg: error processing package linuxcnc-ethercat (--configure):  dependency problems - leaving unconfigured Processing triggers for desktop-file-utils (0.26-1) ... Processing triggers for libc-bin (2.36-9+deb12u9) ... Processing triggers for man-db (2.11.2-2) ... Processing triggers for mailcap (3.70+nmu1) ... Errors were encountered while processing:  ethercat-dkms  ethercat-master  linuxcnc-ethercat E: Sub-process /usr/bin/dpkg returned an error code (1)