Hey LDiego
thanks for the answer.
So let me elaborate a bit about my issue.
The standard (SD card) 0.7.5 image distributed by Intel boots and let's me setup wireless and so on, and it talks to the Arduino IDE also distributed by Intel. However there is a problem with it: opencv, which is part of that LInux image, does not work. If you try to import the opencv library into Python, it crashes.
So I thought this would not be a big deal: since Sergy's blog says that OpenCV works if you rebuild the Linux Standard Base (LSB) image using the yocto toolchain.
I did this, and this rebuilt image works and boots, and I can now do "import cv" in a python script and this works, which I am taking as a good sign.
I know that this LSB image uses eglibc, and I further found out thanks to this post: [Tutorial] Setting up Arduino IDE for linux images based on eglibc and using the yocto build system to rebuild the cross-compiler toolchain for x64 how to setup an Arduino IDE which will build sketches using eglibc. So far to nice.
However it turns out, for reasons which I have not discovered yet and cannot find in the forums, that the USB port is not working on the LSB image. (no /dev/ttyGS0), therefore I do not know if it is possible to run sketches compiled with the Arduino IDE on the Galileo
I suppose I could file the .elf file in /tmp/buildyXXXXX.tmp/sketchname.elf, transfer that to the Galileo, and run that ... I guess that might work. But it is late now, and I don't have the energy to try it now.
Am I on the right lines here?