Fix #3682

src/main/resources/assets/opencomputers/loot/openos/bin/flash.lua

@@ -1,6 +1,7 @@
 local component = require("component")
 local shell = require("shell")
 local fs = require("filesystem")
+local eeprom = component.eeprom
 
 local args, options = shell.parse(...)
 
@@ -13,12 +14,10 @@ if #args < 1 and not options.l then
 end
 
 local function printRom()
-  local eeprom = component.eeprom
   io.write(eeprom.get())
 end
 
 local function readRom()
-  local eeprom = component.eeprom
   local fileName = shell.resolve(args[1])
   if not options.q then
     if fs.exists(fileName) then
@@ -40,6 +39,11 @@ local function readRom()
 end
 
 local function writeRom()
+  -- No funtion available to check if the EEPROM is read-only
+  if not eeprom.setLabel(eeprom.getLabel()) then
+    io.write("WARNING : read-only EEPROM, the BIOS can't be flashed to it.\n\n")
+  end
+
   local file = assert(io.open(args[1], "rb"))
   local bios = file:read("*a")
   file:close()
@@ -50,11 +54,11 @@ local function writeRom()
     repeat
       local response = io.read()
     until response and response:lower():sub(1, 1) == "y"
+    -- Reset the EEPROM component in case it has been replaced.
+    eeprom = component.getPrimary("eeprom")
     io.write("Beginning to flash EEPROM.\n")
   end
 
-  local eeprom = component.eeprom
-
   if not options.q then
     io.write("Flashing EEPROM " .. eeprom.address .. ".\n")
     io.write("Please do NOT power down or restart your computer during this operation!\n")