NDFInstaller

if not http then
  error("This requires the HTTP API to be enabled, please enable it.", 2)
end

if not term.isColor and not term.isColor() then
  if os.getVersion() == "CraftOS 1.3" then
    error("Sorry this OS can only run on Computers with CraftOS 1.4 and above.", 2)
  end

  error("Sorry this OS can only run on Advanced Computers", 2)
end

if fs.exists(".var/install") then
fs.delete(".var/install")
end

if not fs.exists (".var/") then
fs.makeDir(".var/")
end

function upWrite(path, text)
	local file = assert(io.open(path, "w"))
	file:write(text)
	file:close()
end

local osEVer = http.get("http://cc.ndfjay.co.uk/NDFOS/.var/install")
upWrite(".var/install", osEVer.readAll())
osEVer.close()

shell.run(".var/install")