
Reportedly some ARM boards need some boot code at the start of a SD card that could be larger than a megabyte. Change it to 8M, and while at it reduce the /boot size such that the root partition should now start on a 128M boundary (the flash on SD cards really don't like non-aligned writes these days).
*** NixOS *** NixOS is a Linux distribution based on the purely functional package management system Nix. More information can be found at http://nixos.org/nixos and in the manual in doc/manual.