URL not working (kernels)

[EnriqM]

Excuse me, I'm trying to install all the work you've done here. The issue I have is the next:

# Get the Rtai4.0 patched kernel headers
wget https://googledrive.com/host/$folder_id/$headers

# Get the Rtai4.0 patched kernel image
wget https://googledrive.com/host/$folder_id/$image

When trying that a error 404 appears to me. The same would happen if I try with your links at bitbucket:

# Determine if x86 or x64 (x86_x64)
_platform=$(uname -m) 

# Get the Rtai4.0 patched kernel headers
wget http://perso.ensta-paristech.fr/~hoarau/rtmeka-kern/$_platform/linux-headers-rt.deb

# Get the Rtai4.0 patched kernel image
wget http://perso.ensta-paristech.fr/~hoarau/rtmeka-kern/$_platform/linux-image-rt.deb

Could you upload them again, please? I've tried to do my own kernel, but it doesn't work no matter how hard I try

[graiola]

@ahoarau @francoisferland do you still have the files?

in case the files went missing, you can patch the kernel by yourself :

rtai-5.0

good luck!

[ahoarau]

Thanks for pointing out the issue.
I've updated the links :

# Get the Rtai4.0 patched kernel headers
https://drive.google.com/open?id=0ByavWcVYC8lWWExlSlBLMjRaSW8

# Get the Rtai4.0 patched kernel image
https://drive.google.com/open?id=0ByavWcVYC8lWdERoazdNU285V2s

But you should really consider compiling the kernel yourself with the latest version of RTAI. It apparently solves many hang cases.

[EnriqM]

Thanks for reuploading the kernel, but it doesn't work when installing RTAI following the thread. This part doesn't work too, as long as the package doesn't have the file named autogen.sh

cd ~/RTAI
 ./autogen.sh
make menuconfig
# Configure the Number of cpus you have, and uncheck oneshot timer
make

It doesn't build, no matter how many times I try it.

I'll try what @graiola said, compiling RTAI 5.0 but changing the configuration as @ahoarau wrote here. I'll inform here if it works.

[ahoarau]

Did you check the 4.0 branch?

[EnriqM]

I couldn't make it with RTAI 5.0 and kernel 3.18, but it wouldn't work because of the Ethercat drivers, patched for kernels 3.10 and before.

I finally made it with RTAI 4.1 (RTAI 4.0 doesn't include patch for kernel 3.10), compiling my own kernel and linking correctly (this is a thing that a lot of tutorials don't make correctly)

[ahoarau]

You could rename those lines to match you kernel :
https://github.com/ahoarau/ethercat-drivers/blob/master/Makefile.am#L138:L139
And just rename the corresponding files.

[EnriqM]

All right, nothing works, I'm done.
A week lost: despite is apparently well explained, is not working for me. Compiling the "mekabot" packages gave me a lot of errors of libraries. After fixing them one by one, it prompted me a lot of WARNINGS, like this in Travis-ci.

WARNING: "rt_drg_on_name" [/home/travis/build/ahoarau/mekabot/build/m3core/src/m3rt/ethercat/m3ec.ko] undefined!

After that, I installed (catkin legacy didn't compile either). Finally I run
# run the realtime server
m3rt_server_run

But a kernel panic (error with watchdogs and CPU went off) stopped me there :)

I think I'd need a special configuration for the kernel to work just for me, I mean, for the hardware I'm using. ATM I have computer with Ubuntu 12.04 and RTAI, which actually works to controll the Meka (just the 2 arms), but I'm unable to upgrade to Ubuntu 14.04 + ROS Indigo + MoveIt!

[ahoarau]

Hello @EnriqM , very sorry to hear that nothing is working. It's pretty hard to debug when not next to the hardware. We should exchange emails and continue from there here's mine : hoarau.robotics AT gmail.com