Hello,
I want to make sure I absolutely have a good SD imaged card.
I recently received my board and after a few days of waiting for the accessories to come in the mail (including the unexpected fan solution :/) I was able to attempt booting... more times than I'd like. So far I have lost two frustrating evenings to this, so I am hoping someone can help me out...
I have mac and (debian) linux OS. I have tried both the old single image method, and the method described by copying the main image then the separate boot files into the boot partition. The cards all appeared to be made correctly from linux, but this is where I am asking for some confirmation. I would prefer mac advice since using the linux box interferes with work work. Copying 7gb is not fast, and I'd hate to brick a brand new sandisk 32gb class 10 sd by abusing it.
I am using a 5v 2A supply as used on other embedded systems (think beaglebone). I am using a 40mm fan directly above the included heatsink, via soldered j15 and the mounting pads as recommended. I have tried every combination of the three un/attached hardware options using a card setup by both imaging techniques. I also tried disco the fan and running the fan off a 9v battery, just in case the fan had anything to do with it.
Result always the same: Single led for a moment, then a second led (CR8 then CR10). I get a green ethernet light, then orange ethernet light with some blinking. No hdmi activity. When using ethernet cable, no network life from the board shows via my router DHCP client table, or via nmap. (That is the part that is really troubling...)
Is there a method we can recommend to confirm that the SD card is not the issue? Its probably the last thing left...