I have been studying the AD-FMCOMMS3 and Zedboard for more than 2 weeks.
I am not familiar with Linux.
I tried to update the SD according to http://wiki.analog.com/resources/tools-software/linux-software/zynq_images.
When I tried to" sudo adi_update_tools.sh ", I was told the system could't find the relative directory or files.So it failed.
When I tried to "sudo adi_update_boot.sh", it worked well when it downloaded a boot compression file of 26M bytes and unconpressed into specific files.
When I followed the latter instructions to deal with ADI Linux device trees, I was told to gedit an adi-fmcomms2.dtsi. I did it, but I didn't what should be added in the file. Then, I failed to " sudo umount /dev/mmcblk0p1 and sudo adi_rebuild_devicetrees.sh".
Eventually, after it rebooted, there is nothing responding to me.