I would like to put my own kernel and initram on galileo's SPI Flash memory - reason for that is i want to boot system from iscsi without sd card - my kernel and init is prepared and working off the sd card. Is it possible and if yes how I should start with it?
The thread suggested by FGT is a great source of information. However, be careful with the procedure. Xbolshe was the first to try something like this, at least in this community, so I would even suggest you to contact him if you run into some issue with the process. You can also check his custom images for Galileo in his GitHub link, https://github.com/xbolshe/galileo-custom-images https://github.com/xbolshe/galileo-custom-images.