I agree that mixing the older version of the bzImage is a bad idea.
I have two SD cards. One is my original FW0.7.5 (boots fine with known system bugs outlined by intel) and the second is the newer FW0.9.0 based on Alex's images.
I followed his readme.txt file and was able to update my Galileo boards firmware with the efi and capsule files he posted for 0.9.0. I am pretty sure the firmware works ok. RESET button works and resets my Galileo board ok. I can boot the Galileo withOUT the SD card installed and the Mini Linux OS from FW seems to boot ok.
I have a question that might help me figure out where I have gone down the wrong path and might solve all my problems..
In Alex's folder 0.9.0/SPI/ he has listed the CapsuleApp.efi and Flash090.cap which I used to perform the firmware upgrade to my Galileo. He also has posted a bzImage, grub.efi and image-spi-galileo-clanton.cpio.lzma
Alex posted these files for a reason and I think I missed some Linux setup steps that are part of the build your image guide but not apparent to me working with his pre compiled OS images.
I think I need a script file that sets up everything called out in the BSP Build Guide for OS V0.9.0, except the compilation or building of the kernal stuff.