Ethercat installation from repositories - how to step by step

Thank you for the reply, I have a 404 not found for IP 195.135.223.226 80. Do you have an suggestions on how to fix this problem?

Tntmold wrote:

Thank you for the reply, I have a 404 not found for IP 195.135.223.226 80. Do you have an suggestions on how to fix this problem?

It really sounds like you have an issue with your internet connection. can you ping that IP address?

Yes it pings with average time of 150ms but still can't find the files, there may be existing setup problems, here is what the update produces:

phil@sodickA:~$ sudo apt update
Ign:1 cdrom://[Debian GNU/Linux 12 _Bookworm_ - Snapshot amd64 LIVE/INSTALL Binary 20240721-21:05] bookworm InRelease
Err:2 cdrom://[Debian GNU/Linux 12 _Bookworm_ - Snapshot amd64 LIVE/INSTALL Binary 20240721-21:05] bookworm Release
  Please use apt-cdrom to make this CD-ROM recognized by APT. apt-get update cannot be used to add new CD-ROMs
Get:4 download.opensuse.org/repositories/science:/EtherLab/Debian_12 ./ InRelease [1,575 B]                                             
Hit:5 www.linuxcnc.org bookworm InRelease                                                                                              
Hit:6 repository.qtpyvcp.com/apt stable InRelease
Err:4 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:3 repository.qtpyvcp.com/apt develop InRelease
Reading package lists... Done
E: The repository 'cdrom://[Debian GNU/Linux 12 _Bookworm_ - Snapshot amd64 LIVE/INSTALL Binary 20240721-21:05] bookworm Release' does not have a Release file.
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.
W: An error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: download.opensuse.org/repositories/science:/EtherLab/Debian_12 ./ InRelease: The following signatures were invalid: EXPKEYSIG A94819A7CB97A204 science:EtherLab OBS Project
 

When you installed Linuxcnc ISO you were not connected to the internet so its looking on a CD ROM that does not exist.
I would suggest you reinstall Linuxcnc while connected to the internet, then do this again

It appears something has broken since last friday. I also am unable to install now, getting the same missing files you are seeing.

My linux ignorance really shows in these scenarios, I also need very clear step by step instructions. I'm currently blocked again and relying on an older 2.8.2 iso that was packaged up by Grotius on the forum:
github.com/grotius-cnc/LINUX_RTOS/releas...age-amd64.hybrid.iso

That iso has a package that you just need to double click on the desktop that installs all the ethercat stuff and you just need to edit the ethercat.conf file and youre good to go.

I wiped the disk and reloaded LinuxCNC 2.9.2 but still get invalid signatures

hil@SodickA:~$ sudo apt update
[sudo] password for phil:
Hit:1 deb.debian.org/debian bookworm InRelease
Hit:2 security.debian.org/debian-security bookworm-security InRelease
Hit:3 deb.debian.org/debian bookworm-updates InRelease
Hit:5 www.linuxcnc.org bookworm InRelease
Get:6 download.opensuse.org/repositories/science:/EtherLab/Debian_12 ./ InRelease [1,575 B]
Err:6 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:4 repository.qtpyvcp.com/apt develop InRelease
Fetched 1,575 B in 2s (757 B/s)
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
196 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: download.opensuse.org/repositories/science:/EtherLab/Debian_12 ./ InRelease: The following signatures were invalid: EXPKEYSIG A94819A7CB97A204 science:EtherLab OBS Project
W: Failed to fetch download.opensuse.org/repositories/scien...ebian_12/./InRelease The following signatures were invalid: EXPKEYSIG A94819A7CB97A204 science:EtherLab OBS Project
W: Some index files failed to download. They have been ignored, or old ones used instead.

@TntMold, @sockheavan,
Please follow this sticky if you repositories are not installing
forum.linuxcnc.org/ethercat/53785-instal...thercat-repositories

Unfortunately, there are licencing and legal implications that prevent Linuxcnc from doing what Grotius did.
If the developers do not deploy the changes to the ISO I have made on my request, These issues will continue.
 

I wonder what Grotius did that can have such implications. After all it wasn't long ago we used to download and compile the ethercat master ourselves when we needed it.

Anyways, I have installed ethercat from repositories a few times the last few months and always ran into this with the signing and expired key. And the last time on 2.9.3 iso the ecat.sh didn't solve it. Can we have a pointer in the first sticky to the third sticky? I had a hard time finding the ecat.sh script to start with.

The ecat.sh script, admittedly I may have screwed some things up, did add a duplicate entry in /etc/apt/sources.d. The original was call ScienceLab-something. I removed that one. Then there was the question of where the new downloaded key went. Kind if forgotten the details but there became duplicate keys and one had to be removed.

In the end I wonder if it isn't easier to just remove the signed-by entry in the sources file. So now I only have this in the igvh.sources file

I am very new to Linux and this is obviously an ignorance problem. Why can't I run the script?


phil@SodickA:~/Downloads$ . ./ecat.sh
requires sudo to run eg: sudo ./ecat.sh
removing ethercat repository file\n
rm: remove write-protected regular file '/etc/apt/sources.list.d/ighvh.sources'? y
rm: cannot remove '/etc/apt/sources.list.d/ighvh.sources': Permission denied
Install ethercat repository
dd: failed to open '/etc/apt/trusted.gpg.d/science_EtherLab.gpg': Permission denied
--2024-12-20 15:55:08-- build.opensuse.org/projects/science:Ethe...ys/download?kind=gpg
Resolving build.opensuse.org (build.opensuse.org)... 195.135.223.221, 2a07:de40:b250:131:10:151:131:20
Connecting to build.opensuse.org (build.opensuse.org)|195.135.223.221|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: unspecified [application/octet-stream]
Saving to: ‘STDOUT’

- [ <=> ] 1.08K --.-KB/s in 0s

2024-12-20 15:55:09 (47.0 MB/s) - written to stdout [1109]

gpg: [stdout]: write error: Broken pipe
gpg: filter_flush failed on close: Broken pipe
tee: /etc/apt/sources.list.d/ighvh.sources: Permission denied
phil@SodickA:~/Downloads$ sudo .ecat.sh
sudo: .ecat.sh: command not found