osload.lua

if not term.isColor() then
    error("PC doesn't support colors.")
end
local bootimg = "/sys/kernel/.bootimg"
local w,h = term.getSize()
local tLines = {}
a = fs.open(bootimg,"r")
repeat
  sLine = a.readLine()
  table.insert(tLines,sLine)
until not sLine
a.close()
local x = nil
local y = nil
local tLengths = {}
for i=1,#tLines do
   slen = string.len(tLines[i])
   table.insert(tLengths,slen)
   table.sort(tLengths)
end
local xCenter = math.floor((w/2) - (tLengths[#tLengths]/2))
local yCenter = math.floor((h/2) - (#tLengths/2))
term.setBackgroundColor(colors.lightGray)
term.setTextColor(colors.gray)
term.clear()
term.setCursorPos(xCenter,yCenter)
local img = paintutils.loadImage(bootimg)
x,y = term.getCursorPos()
paintutils.drawImage(img,xCenter,y-1)
x,y = term.getCursorPos()
local ostxt1 = "Debian 1.0 Raspbian"
local ostxt2 = "v.2018 CC Edition"
term.setBackgroundColor(colors.lightGray)
term.setCursorPos(math.floor((w/2) - (string.len(ostxt1)/2)), y+2)
write(ostxt1)
x,y = term.getCursorPos()
term.setCursorPos(math.floor((w/2) - (string.len(ostxt2)/2)), y+1)
write(ostxt2)
x,y = term.getCursorPos()
term.setCursorPos(1,y+1)
sleep(3)
term.setBackgroundColor(colors.black)
term.setTextColor(colors.white)
term.clear()
term.setCursorPos(1, 1)
shell.run("/sys/kernel/apiload")