Module ec_master not found in directory /lib/modules/6.1.0-25-rt-amd64

sudo apt update Hit:1 http://security.debian.org/debian-security bookworm-security InRelease Get:2 http://deb.debian.org/debian bookworm InRelease [151 kB]                  Get:3 http://deb.debian.org/debian bookworm-updates InRelease [55,4 kB]         Hit:4 http://download.opensuse.org/repositories/science:/EtherLab/Debian_12 ./ InRelease Get:5 http://deb.debian.org/debian bookworm-backports InRelease [59,0 kB] Get:6 http://deb.debian.org/debian bookworm-backports/main Sources.diff/Index [63,3 kB] Get:7 http://deb.debian.org/debian bookworm-backports/main Translation-en.diff/Index [63,3 kB] Get:8 http://deb.debian.org/debian bookworm-backports/main Sources T-2024-09-25-0804.34-F-2024-09-25-0804.34.pdiff [1.168 B] Get:8 http://deb.debian.org/debian bookworm-backports/main Sources T-2024-09-25-0804.34-F-2024-09-25-0804.34.pdiff [1.168 B] Get:9 http://deb.debian.org/debian bookworm-backports/main Translation-en T-2024-09-25-0804.34-F-2024-09-25-0804.34.pdiff [241 B] Get:9 http://deb.debian.org/debian bookworm-backports/main Translation-en T-2024-09-25-0804.34-F-2024-09-25-0804.34.pdiff [241 B] Hit:10 https://www.linuxcnc.org bookworm InRelease                              Get:11 https://linuxcnc.org bookworm InRelease [31,1 kB] Err:11 https://linuxcnc.org bookworm InRelease   The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 3CB9FD148F374FEF Reading package lists... Done W: Skipping acquire of configured file '2.9-rt/source/Sources' as repository 'https://www.linuxcnc.org bookworm InRelease' does not seem to provide it (sources.list entry misspelt?) W: GPG error: https://linuxcnc.org bookworm InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 3CB9FD148F374FEF E: The repository 'https://linuxcnc.org bookworm InRelease' is not signed. N: Updating from such a repository can't be done securely, and is therefore disabled by default. N: See apt-secure(8) manpage for repository creation and user configuration details.

sudo systemctl status ethercat.service × ethercat.service - EtherCAT Master Kernel Modules      Loaded: loaded (/lib/systemd/system/ethercat.service; enabled; preset: enabled)      Active: failed (Result: exit-code) since Wed 2024-09-25 10:35:27 CEST; 17min ago     Process: 663 ExecStart=/usr/sbin/ethercatctl start (code=exited, status=1/FAILURE)    Main PID: 663 (code=exited, status=1/FAILURE)         CPU: 14ms set 25 10:35:27 pc51 systemd[1]: Starting ethercat.service - EtherCAT Master Kernel Modules... set 25 10:35:27 pc51 ethercatctl[684]: modprobe: FATAL: Module ec_master not found in directory /lib/modules/6.1.0-25-rt-amd64 set 25 10:35:27 pc51 systemd[1]: ethercat.service: Main process exited, code=exited, status=1/FAILURE set 25 10:35:27 pc51 systemd[1]: ethercat.service: Failed with result 'exit-code'. set 25 10:35:27 pc51 systemd[1]: Failed to start ethercat.service - EtherCAT Master Kernel Modules.

sudo mkdir -p /usr/local/share/keyrings/ wget -O- https://build.opensuse.org/projects/science:EtherLab/signing_keys/download?kind=gpg | gpg --dearmor | sudo dd of=/etc/apt/trusted.gpg.d/science_EtherLab.gpg sudo tee -a /etc/apt/sources.list.d/ighvh.sources > /dev/null <<EOT Types: deb Signed-By: /etc/apt/trusted.gpg.d/science_EtherLab.gpg Suites: ./ URIs: http://download.opensuse.org/repositories/science:/EtherLab/Debian_12/ EOT sudo apt update sudo apt install -y linux-headers-$(uname -r) ethercat-master linuxcnc-ethercat

Err:11 https://linuxcnc.org bookworm InRelease The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 3CB9FD148F374FEF Reading package lists... Done W: Skipping acquire of configured file '2.9-rt/source/Sources' as repository 'https://www.linuxcnc.org bookworm InRelease' does not seem to provide it (sources.list entry misspelt?)

The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 3CB9FD148F374FEF

Getting the archive signing key To use these packages on your computer, first add the buildbot archive signing key to your apt keychain by running this command in a terminal: sudo apt-key adv --keyserver hkp://keys.openpgp.org --recv-key EF1B07FEE0EE663E (Key fingerprint = 4FA2 D1ED 5B2F 38AB 01A4 AB7E EF1B 07FE E0EE 663E) (An alternative keyserver is keyserver.ubuntu.com) If you get an error like "GPG: keyserver receive failed: No dirmngr" then install the missing dirmngr package by entering the following in the terminal: sudo apt-get install dirmngr If you get an error downloading the key it may be caused by being behind a firewall or a proxy server. Retry by specifying port 80 rather than using the default port (11371): sudo apt-key adv --keyserver hkp://keys.openpgp.org:80 --recv-key EF1B07FEE0EE663E (An alternative keyserver is keyserver.ubuntu.com:80) If you have successfully installed the key then close the terminal.