diff --git a/data/computercraft/lua/bios.lua b/data/computercraft/lua/bios.lua
index e2eb37b..66571ff 100644
--- a/data/computercraft/lua/bios.lua
+++ b/data/computercraft/lua/bios.lua
@@ -1,7 +1,7 @@
-_G._HOST = _G._HOST .. " (LeonOS 0.1.2)"
+_G._HOST = _G._HOST .. " (LeonOS 0.1.7)"
 local fs = rawget(_G, "fs")
 
-_G._RC_ROM_DIR = _RC_ROM_DIR or (...) and fs.exists("/rc") and "/rc" or "/rom"
+_G._RC_ROM_DIR = _RC_ROM_DIR or (...) and fs.exists("/leonos") and "/leonos" or "/rom"
 
 if fs.exists("/.start_rc.lua") and not (...) then
   _G._RC_USED_START = true
diff --git a/data/computercraft/lua/rom/apis/help.lua b/data/computercraft/lua/rom/apis/help.lua
index 6976736..2e5ed23 100644
--- a/data/computercraft/lua/rom/apis/help.lua
+++ b/data/computercraft/lua/rom/apis/help.lua
@@ -6,7 +6,7 @@ local expect = require("cc.expect").expect
 local completion = require("cc.completion")
 
 local help = {}
-help._DEFAULT_PATH = "/rc/help"
+help._DEFAULT_PATH = "/leonos/help"
 
 function help.init()
   local vars = thread.vars()
diff --git a/data/computercraft/lua/rom/apis/keys.lua b/data/computercraft/lua/rom/apis/keys.lua
index ce7061d..c98db0d 100644
--- a/data/computercraft/lua/rom/apis/keys.lua
+++ b/data/computercraft/lua/rom/apis/keys.lua
@@ -14,7 +14,7 @@ elseif mcver <= 12 or _HOST:match("LeonOS%-PC") then
   kmap = "lwjgl2"
 end
 
-local base = dofile("/rc/keymaps/"..kmap..".lua")
+local base = dofile("/leonos/keymaps/"..kmap..".lua")
 local lib = {}
 
 -- reverse-index it!
diff --git a/data/computercraft/lua/rom/apis/shell.lua b/data/computercraft/lua/rom/apis/shell.lua
index 06a7cd7..2f782a6 100644
--- a/data/computercraft/lua/rom/apis/shell.lua
+++ b/data/computercraft/lua/rom/apis/shell.lua
@@ -32,7 +32,7 @@ function shell.init(env)
   copyIfPresent("aliases", vars)
   completions[vars.parentShell or 0] = completions[vars.parentShell or 0] or {}
 
-  vars.path = vars.path or ".:/rc/programs"
+  vars.path = vars.path or ".:/leonos/programs"
   vars.env = env or _ENV or _G
 end
 
diff --git a/data/computercraft/lua/rom/editors/advanced.lua b/data/computercraft/lua/rom/editors/advanced.lua
index f8f594e..5d9cd01 100644
--- a/data/computercraft/lua/rom/editors/advanced.lua
+++ b/data/computercraft/lua/rom/editors/advanced.lua
@@ -87,7 +87,7 @@ local function redraw()
 end
 
 local syntax = require("edit.syntax")
-  .new("/rc/modules/main/edit/syntax/lua.lua")
+  .new("/leonos/modules/main/edit/syntax/lua.lua")
 
 local function rehighlight()
   local line = {}
diff --git a/data/computercraft/lua/rom/modules/main/rc/json.lua b/data/computercraft/lua/rom/modules/main/rc/json.lua
index 711ef78..2e8f80c 100644
--- a/data/computercraft/lua/rom/modules/main/rc/json.lua
+++ b/data/computercraft/lua/rom/modules/main/rc/json.lua
@@ -22,7 +22,7 @@
 -- SOFTWARE.
 --
 
-local json = { _version = "0.1.2" }
+local json = { _version = "0.1.7" }
 
 -------------------------------------------------------------------------------
 -- Encode
diff --git a/data/computercraft/lua/rom/modules/main/rc/thread.lua b/data/computercraft/lua/rom/modules/main/rc/thread.lua
index 9258c57..1238ff5 100644
--- a/data/computercraft/lua/rom/modules/main/rc/thread.lua
+++ b/data/computercraft/lua/rom/modules/main/rc/thread.lua
@@ -360,7 +360,7 @@ function api.start()
 
   local _native = term.native()
   wrappedNative = window.create(_native, 1, 1, _native.getSize())
-  api.launchTab("/rc/programs/shell.lua", "shell")
+  api.launchTab("/leonos/programs/shell.lua", "shell")
 
   rc.pushEvent("init")
 
diff --git a/data/computercraft/lua/rom/programs/craftos.lua b/data/computercraft/lua/rom/programs/craftos.lua
index 6f54f62..bb1f260 100644
--- a/data/computercraft/lua/rom/programs/craftos.lua
+++ b/data/computercraft/lua/rom/programs/craftos.lua
@@ -53,6 +53,6 @@ function nEnv.os.version()
   return "LeonOS 1.0 ALpha 1"
 end
 
-local func, err = loadfile("/rc/programs/shell.lua", "t", nEnv)
+local func, err = loadfile("/leonos/programs/shell.lua", "t", nEnv)
 if not func then error(err, 0) end
 func()
diff --git a/data/computercraft/lua/rom/programs/edit.lua b/data/computercraft/lua/rom/programs/edit.lua
index 4885272..d19fa00 100644
--- a/data/computercraft/lua/rom/programs/edit.lua
+++ b/data/computercraft/lua/rom/programs/edit.lua
@@ -23,7 +23,7 @@ local settings = require("settings")
 local df = function(f, ...) return assert(loadfile(f))(...) end
 
 if term.isColor() or settings.get("edit.force_highlight") then
-  df("/rc/editors/advanced.lua", ...)
+  df("/leonos/editors/advanced.lua", ...)
 else
-  df("/rc/editors/basic.lua", ...)
+  df("/leonos/editors/basic.lua", ...)
 end
diff --git a/data/computercraft/lua/rom/programs/shell.lua b/data/computercraft/lua/rom/programs/shell.lua
index 7982b92..6a5048b 100644
--- a/data/computercraft/lua/rom/programs/shell.lua
+++ b/data/computercraft/lua/rom/programs/shell.lua
@@ -74,32 +74,32 @@ for k, v in pairs(aliases) do
   shell.setAlias(k, v)
 end
 
-local completions = "/rc/completions"
+local completions = "/leonos/completions"
 for _, prog in ipairs(fs.list(completions)) do
   dofile(fs.combine(completions, prog))
 end
 
 local history = {}
 while true do
-  if #text > 0 then
-    -- 先清除控制台内容，但保留顶部应用栏
-    local w, h = term.getSize()
-    term.setTextColor(colors.white)
-    term.setBackgroundColor(colors.black)
-    for y=2, h do
-      term.at(1, y).clearLine()
-    end
-    term.at(1, 2)
-    
-    term.setTextColor(colors.yellow)
-    rc.write("$ "..shell.dir().." >>> ")
-    term.setTextColor(colors.white)
+  -- 先清除控制台内容，但保留顶部应用栏
+  local w, h = term.getSize()
+  term.setTextColor(colors.white)
+  term.setBackgroundColor(colors.black)
+  for y=2, h do
+    term.at(1, y).clearLine()
+  end
+  term.at(1, 2)
+  
+  term.setTextColor(colors.yellow)
+  rc.write("$ "..shell.dir().." >>> ")
+  term.setTextColor(colors.white)
 
-    local text = term.read(nil, history, shell.complete)
+  local text = term.read(nil, history, shell.complete)
+  if #text > 0 then
     history[#history+1] = text
     local ok, err = shell.run(text)
     if not ok and err then
       io.stderr:write("Application has a error when running and system has stop it. Error:\n", err, "\n")
     end
   end
-end
+end
\ No newline at end of file
diff --git a/data/computercraft/lua/rom/startup/00_fs.lua b/data/computercraft/lua/rom/startup/00_fs.lua
index 454dea0..0690112 100644
--- a/data/computercraft/lua/rom/startup/00_fs.lua
+++ b/data/computercraft/lua/rom/startup/00_fs.lua
@@ -22,7 +22,7 @@ local function expect(...)
 end
 
 -- path resolution:
--- if the path begins with /rc, then redirect to wherever that actually
+-- if the path begins with /leonos, then redirect to wherever that actually
 -- is; otherwise, resolve the path based on the current program's working
 -- directory
 -- this is to allow .OS to run from anywhere
@@ -72,8 +72,8 @@ function fs.list(path)
   local _, files = pcall(list, path)
   if not _ then return nil, files end
   if path == "/" then
-    -- inject /rc into the root listing
-    if not exists("/rc") then
+    -- inject /leonos into the root listing
+    if not exists("/leonos") then
       files[#files+1] = "rc"
     end
   end
diff --git a/data/computercraft/lua/rom/startup/10_package.lua b/data/computercraft/lua/rom/startup/10_package.lua
index 8b4fd23..9726080 100644
--- a/data/computercraft/lua/rom/startup/10_package.lua
+++ b/data/computercraft/lua/rom/startup/10_package.lua
@@ -6,7 +6,7 @@ _G.package = {}
 
 package.config = "/\n;\n?\n!\n-"
 package.cpath = ""
-package.path = "/rc/apis/?.lua;/rc/modules/main/?.lua;./lib/?.lua;./lib/?/init.lua;./?.lua;./?/init.lua"
+package.path = "/leonos/apis/?.lua;/leonos/modules/main/?.lua;./lib/?.lua;./lib/?/init.lua;./?.lua;./?/init.lua"
 
 local function rm(api)
   local tab = _G[api]
@@ -76,7 +76,7 @@ package.searchers = {
 
 local fs = package.loaded.fs
 -- require isn't here yet
-local expect = loadfile("/rc/modules/main/cc/expect.lua")()
+local expect = loadfile("/leonos/modules/main/cc/expect.lua")()
 package.loaded["cc.expect"] = expect
 
 function package.searchpath(name, path, sep, rep)
diff --git a/installer.lua b/installer.lua
index 4946c03..7da55e1 100644
--- a/installer.lua
+++ b/installer.lua
@@ -1,6 +1,6 @@
 -- LeonOS installer
 local INSTALLER_VERSION = "0.1.7"
-local DEFAULT_ROM_DIR = "/rc"
+local DEFAULT_ROM_DIR = "/leonos"
 
 print("Start loading LeonOS installer...")
 print("[Installer] Loading module 1")
diff --git a/updater.lua b/updater.lua
index 2999d3b..fe10da0 100644
--- a/updater.lua
+++ b/updater.lua
@@ -4,8 +4,8 @@ local fs = rawget(_G, "fs")
 local term = rawget(_G, "term")
 local http = rawget(_G, "http")
 
-_G._RC_ROM_DIR = _RC_ROM_DIR or "/rc"
-if _RC_ROM_DIR == "/rom" then _RC_ROM_DIR = "/rc" end
+_G._RC_ROM_DIR = _RC_ROM_DIR or "/leonos"
+if _RC_ROM_DIR == "/rom" then _RC_ROM_DIR = "/leonos" end
 
 -- fail-safe
 local start_rc = [[