Ethercat installation from repositories - how to step by step

Martin.L
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01 Feb 2025 20:35 #320348 by Martin.L

Replied by Martin.L on topic Ethercat installation from repositories - how to step by step

I think it's time to update the first post of this thread, It's not working straight forward anymore even with 2.9.3, I had to jump on the last post to find a way to let it work. Also tried 2.9.4 and it's not working. Thanks for your time, when it works It's so satisfying

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rodw
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01 Feb 2025 22:20 #320358 by rodw

Replied by rodw on topic Ethercat installation from repositories - how to step by step

the only reason why Cornholio used 6.12 kernel was to get the latest kernel in the hope that support or the Pi5 was better but the earlier one was pretty good anyway. The default Debian uses kernel 6.1 so it is bleeding edge. Ethercat includes custom kernel components so it might not work on the bleeding edge.

The following user(s) said Thank You: bananun

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jm_mt
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05 Feb 2025 01:30 - 05 Feb 2025 02:33 #320681 by jm_mt

Replied by jm_mt on topic Ethercat installation from repositories - how to step by step

Is it safe to say the Linux Raspberrypi 6.12.11 #1 SMP PREEMPT_RT doesn't work with Etherlab Ethercat Master version 1.6.2. Trying to setup EtherCat on Pi5 with Debian.

I have issues starting the ethercat service.

sudo systemctl enable ethercat

Job for ethercat.service failed because the control process exited with error code.
See "systemctl status ethercat.service" and "journalctl -xeu ethercat.service" for details.

Here's what shows in the journal

Feb 05 12:13:12 raspberrypi ethercatctl[53739]: ERROR: No network cards for EtherCAT specified.
Feb 05 12:13:12 raspberrypi ethercatctl[53739]: Please edit /etc/ethercat.conf with root permissions and set MASTER0_DEVICE variable to either a network interface name (like eth0) or to a MAC addre>
Feb 05 12:13:12 raspberrypi systemd[1]: ethercat.service: Main process exited, code=exited, status=1/FAILURE

Looks like some files are missing or can't be found when trying to install the modules?

sudo make modules_install

returns

cnc@raspberrypi:~/ethercat$ sudo make modules_install make -C "/usr/src/linux-headers-6.12.11" M="/home/cnc/ethercat" INSTALL_MOD_DIR="ethercat" modules_install make[1]: Entering directory '/usr/src/linux-headers-6.12.11'   INSTALL /lib/modules/6.12.11/ethercat/examples/mini/ec_mini.ko   SIGN    /lib/modules/6.12.11/ethercat/examples/mini/ec_mini.ko At main.c:171: - SSL error:FFFFFFFF80000002:system library::No such file or directory: ../crypto/bio/bss_file.c:67 - SSL error:10000080:BIO routines::no such file: ../crypto/bio/bss_file.c:75 sign-file: ./certs/signing_key.pem   XZ      /lib/modules/6.12.11/ethercat/examples/mini/ec_mini.ko.xz   INSTALL /lib/modules/6.12.11/ethercat/master/ec_master.ko   SIGN    /lib/modules/6.12.11/ethercat/master/ec_master.ko At main.c:171: - SSL error:FFFFFFFF80000002:system library::No such file or directory: ../crypto/bio/bss_file.c:67 - SSL error:10000080:BIO routines::no such file: ../crypto/bio/bss_file.c:75 sign-file: ./certs/signing_key.pem   XZ      /lib/modules/6.12.11/ethercat/master/ec_master.ko.xz   INSTALL /lib/modules/6.12.11/ethercat/devices/ec_generic.ko   SIGN    /lib/modules/6.12.11/ethercat/devices/ec_generic.ko At main.c:171: - SSL error:FFFFFFFF80000002:system library::No such file or directory: ../crypto/bio/bss_file.c:67 - SSL error:10000080:BIO routines::no such file: ../crypto/bio/bss_file.c:75 sign-file: ./certs/signing_key.pem   XZ      /lib/modules/6.12.11/ethercat/devices/ec_generic.ko.xz   DEPMOD  /lib/modules/6.12.11 Warning: modules_install: missing 'System.map' file. Skipping depmod. make[1]: Leaving directory '/usr/src/linux-headers-6.12.11'

This seems to the affect other command later like sudo modprobe ethercat. When this run it returns

modprobe: FATAL: Module ethercat not found in directory /lib/modules/6.12.11

Almost looks like the module never gets built or compiled correctly?
EtherCAT's kernel module (.ko) doesn't appear in the modules when trying to search for it

sudo find /lib/modules/$(uname -r) -name "ethercat.ko"

This returns not found

I think tomorrow I'm just gonna try everything again with an old kernel version, just to get started.

Last edit: 05 Feb 2025 02:33 by jm_mt.

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unknown
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05 Feb 2025 02:20 #320689 by unknown

Replied by unknown on topic Ethercat installation from repositories - how to step by step

No you'll need to use the RPi with a 6.1.x kernel, which should work. Rod has raised the issue regarding Ethercat not supporting 6.12 (anything higher than 6.1 I'd guess).

That's the trap when releasing a new image, some will want the latest kernel and then some, like yourself will require an earlier version. Can't keep everyone happy.

Sorry for any confusion and such, Ethercat is too rich for me, but once it's all sorted I'll be sure to test the Ethercat install works, wont be able to test any actual hardware but the actual install and building of modules I'll test.

And a final thanks for actually supplying the messages and such, much much better than "doesn't work".

Cheers
Rob

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Khan
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23 Feb 2025 00:51 - 23 Feb 2025 04:41 #322329 by Khan

Replied by Khan on topic Ethercat installation from repositories - how to step by step

Hello,
i followed the instructions, and successfully installed everything, what are the next steps to get the system up and running i am using L7 Ethercat leadshine servos, i have no idea how to setup cia402, this is my first time dealing with linux, need help

Last edit: 23 Feb 2025 04:41 by Khan.

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PabloSancez
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01 Mar 2025 17:40 #322947 by PabloSancez

Replied by PabloSancez on topic Ethercat installation from repositories - how to step by step

hello! I used to successfully use the "sudo apt install linuxcnc-ethercat" construct and it worked well, but now something is broken... it is impossible to establish a connection with the server...

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rodw
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01 Mar 2025 17:58 #322951 by rodw

Replied by rodw on topic Ethercat installation from repositories - how to step by step

Their key changed a while ago. You should not get this with 2.9.4
Otherwise there is a script on another sticky threads to fix this.

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PabloSancez
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01 Mar 2025 19:37 #322957 by PabloSancez

Replied by PabloSancez on topic Ethercat installation from repositories - how to step by step

I get it in version 2.9.4.
everything worked during the day, broke in the evening.
how can I fix this?
where to find "sticky threads"

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rodw
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01 Mar 2025 22:42 #322968 by rodw

Replied by rodw on topic Ethercat installation from repositories - how to step by step

try: sudo apt update and try again
It just worked for me. do you have internet access?
the script is here but you should not need it
forum.linuxcnc.org/ethercat/53785-instal...thercat-repositories

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