That is a lesson I learned dipping into BeagleBoard and it’s driving me insane.
Like, the BeagleBone Black and BeaglePlay are extremely solid SBCs; the Black, which I run off an SD card, is incredibly solid and the Play is–I mean, reading the specs it may literally be able to do anything. They’re also easy to get and at a reasonable price point. But the ecology and documentation, even the official Getting Started page, are nightmare fuel and by the way, do not use those instructions as they are broken and the associated OS is three years old. If you google enough, however, you may eventually realize you have to go to the forums and find the two threads where the latest OS updates–as in, this month–are being posted or go to the individual documentation linked off of the board, where you will probably find up something like a workflow or will give you enough for some extrapolation.
There are attempts to get the OS and kernel up to date and integrate them with Beagle-specific packages and cape firmware, but this is not just like a whole bunch of separate groups doing different things not talking to each other; it’s like they don’t even know the other groups exist when everyone is technically working on the same projects. It’s depressing.