mak box type more consistent and display it anyway

- 'rpi' instead of 'ionopi' for a simple raspberry pi
+ fix dirty flag when dhcp server is modified

install.py

@@ -45,7 +45,7 @@ except ImportError:
 if serial is None:
     exit()
 
- 
+
 TOOLS = BoxInfo.TOOLS
 BOX_TYPES = {'ionopi', 'ionopimax', 'control-box', 'bare-apu', 'dual-eth-rpi'}
 
@@ -107,9 +107,6 @@ GENERIC_TEMPLATE = f"""{COMMENT}
 [BOX]
 type=%s
 MAC=%s
-
-[NETWORK]
-eth0=wan
 """
 
 DHCP_HEADER = """
@@ -508,6 +505,8 @@ def handle_config():
                 print('WARNING: missing type in BOX section')
                 print('This is a cm3 so guess its a ionopimax')
                 box.typ = 'ionopimax'
+        print('box type:', box.typ, ' mac addr:', box.macaddr)
+        print('---')
     else:
         if box.typ == 'apu':
             # determine if display is present
@@ -522,8 +521,11 @@ def handle_config():
             box.typ = 'dual-eth-rpi'
             print('This is a cm4, so guess its a dual-eth-rpi - please check type in created cfg file')
         elif box.typ == 'cm3':
-            print('This is a cm3 so guess its a ionopimax  - please check type in created cfg file')
+            print('This is a cm3 so guess its a ionopimax - please check type in created cfg file')
             box.typ = 'ionopimax'
+        elif box.typ == 'rpi':
+            print('This is a simple rpi, so guess its a ionopi - please check type in created cfg file')
+            box.typ = 'ionopi'
         template = TEMPLATES.get(box.typ)
         if template is None:
             box.typ = box.typ or 'unknown-box'
@@ -593,9 +595,10 @@ def handle_config():
                     to_start['isc-dhcp-server'] = 'restart'
                     show.dirty = True
                 try:
-                    replace_in_file('/etc/default/isc-dhcp-server',
-                                    r'INTERFACESv4="(.*)"', ' '.join(
-                                    [n for n in box.network_interfaces if n != box.main_if]))
+                    if replace_in_file(
+                            '/etc/default/isc-dhcp-server', r'INTERFACESv4="(.*)"', ' '.join(
+                            [n for n in box.network_interfaces if n != box.main_if])):
+                        show.dirty = True
                 except FileNotFoundError:
                     if 'yes'.startswith(input('install isc-dhcp-server? [y]')):
                         unix_cmd('apt-get install isc-dhcp-server')