The board should have Linux installed when you get it from the distributor. Usually the version is pretty old and you want to update it.
So you need to get an SD card and write one of the newer "image" files to it. There are two ways you can go. Run everything off the SD card, or "flash" onto the Beaglebone eMMC. Running off the SD card gives you a lot of flexibility to experiment simply by changing cards. But SD cards are not the best for long-term stability. So you develop something using the SD card, and then when all is ready you flash the eMMC. A change to a text file is what cause the flash to happen. The image has a root file system and that is where /boot/uEnv.txt is located. I don't use Windows, so I can't tell you what tools you need to work with an image file. But you should be able to mount the image file and see the folder hierarchy and edit files as required. There is a simple change to cause the flash of the eMMC and this is what they are referring to with the /boot/uEnv.txt. It sounds like you may need to use your Windows machine to re-format the SD card and write a new image to it. After that, you plug the SD card into the Beaglebone and power it up. Then you have to determine how to connect to and control the board. If you see a "heartbeat" from one of the blue LEDs you are making progress. Greg -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/4bc90948-8699-497c-8549-fdd8c969324c%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.