Warn when no network configuration is selected (#4408)

* Make network configuration mandatory with explicit "No network" option

* Add network configuration recommendation hint and disable sorting

* Warn when network selection was skipped instead of making it mandatory

Replace the mandatory network_config menu requirement with a yellow
warning on the final confirmation screen, shown only when the user
skipped the network menu entirely. Explicitly picking "No network
configuration" is treated as a conscious choice and does not trigger
the warning.

- Drop mandatory=True from the network_config global menu item
- Rename NicType.NONE menu label from "No network" to
  "No network configuration" (an installed system still has an NIC;
  only the install-time configuration is absent)
- Add ConfigurationOutput.get_install_warnings() and render them in
  confirm_config when show_install_warnings=True
- guided.py and minimal.py enable the warning on the confirm screen
- Reuse the existing "No network configuration" msgid in .pot; add the
  warning string; update Ukrainian translations accordingly

* Drop NicType.NONE from this PR

The NONE option introduced earlier in this branch is being removed per
review feedback (#4408). Whether to add explicit "None" options across
multiple menus (greeter, gfx driver, network, bootloader) is now being
discussed in #4464 and should land as a separate change there.

This PR keeps only the warning-on-confirm behaviour: when the user
skipped the network menu entirely (network_config is None), a yellow
warning is shown on the final confirmation screen.

archinstall/lib/configuration.py

@@ -124,10 +124,13 @@ class ConfigurationOutput:
 		label_width = max(len(label) for label, _ in rows) + 2
 		return '\n'.join(f'{label:<{label_width}}{value}' for label, value in rows)
 
-	async def confirm_config(self) -> bool:
+	async def confirm_config(self, show_install_warnings: bool = False) -> bool:
 		header = f'{tr("The specified configuration will be applied")}. '
 		header += tr('Would you like to continue?') + '\n'
 
+		if show_install_warnings:
+			header += self._render_install_warnings()
+
 		group = MenuItemGroup.yes_no()
 		group.set_preview_for_all(lambda x: self.user_config_to_json())
 
@@ -145,6 +148,22 @@ class ConfigurationOutput:
 
 		return True
 
+	def get_install_warnings(self) -> list[str]:
+		warnings: list[str] = []
+
+		if not isinstance(self._config.network_config, NetworkConfiguration):
+			warnings.append(tr('Warning: no network configuration selected. Network will need to be set up manually on the installed system.'))
+
+		return warnings
+
+	def _render_install_warnings(self) -> str:
+		warnings = self.get_install_warnings()
+
+		if not warnings:
+			return ''
+
+		return '\n' + '\n'.join(f'[yellow]{w}[/]' for w in warnings) + '\n'
+
 	def _is_valid_path(self, dest_path: Path) -> bool:
 		dest_path_ok = dest_path.exists() and dest_path.is_dir()
 		if not dest_path_ok:

archinstall/lib/network/network_menu.py

@@ -172,14 +172,17 @@ async def select_network(preset: NetworkConfiguration | None) -> NetworkConfigur
 	"""
 
 	items = [MenuItem(n.display_msg(), value=n) for n in NicType]
-	group = MenuItemGroup(items, sort_items=True)
+	group = MenuItemGroup(items, sort_items=False)
 
 	if preset:
 		group.set_selected_by_value(preset.type)
 
+	header = tr('Choose network configuration') + '\n'
+	header += tr('Recommended: Network Manager for desktop, Manual for server') + '\n'
+
 	result = await Selection[NicType](
 		group,
-		header=tr('Choose network configuration'),
+		header=header,
 		allow_reset=True,
 		allow_skip=True,
 	).show()

archinstall/locales/base.pot

@@ -2192,6 +2192,14 @@ msgstr ""
 msgid "Choose network configuration"
 msgstr ""
 
+msgid "Recommended: Network Manager for desktop, Manual for server"
+msgstr ""
+
+msgid ""
+"Warning: no network configuration selected. Network will need to be set up "
+"manually on the installed system."
+msgstr ""
+
 msgid "No packages found"
 msgstr ""
 

archinstall/locales/uk/LC_MESSAGES/base.po

@@ -2133,6 +2133,12 @@ msgstr "Оберіть інтерфейс"
 msgid "Choose network configuration"
 msgstr "Оберіть конфігурацію мережі"
 
+msgid "Recommended: Network Manager for desktop, Manual for server"
+msgstr "Рекомендовано: Network Manager для робочого столу, ручне налаштування для сервера"
+
+msgid "Warning: no network configuration selected. Network will need to be set up manually on the installed system."
+msgstr "Попередження: конфігурацію мережі не обрано. Мережу доведеться налаштувати вручну на встановленій системі."
+
 msgid "No packages found"
 msgstr "Пакети не знайдено"
 

archinstall/scripts/guided.py

@@ -226,7 +226,7 @@ def main(arch_config_handler: ArchConfigHandler | None = None) -> None:
 
 	if not arch_config_handler.args.silent:
 		aborted = False
-		res: bool = tui.run(config.confirm_config)
+		res: bool = tui.run(lambda: config.confirm_config(show_install_warnings=True))
 
 		if not res:
 			debug('Installation aborted')

archinstall/scripts/minimal.py

@@ -77,7 +77,7 @@ async def main(arch_config_handler: ArchConfigHandler | None = None) -> None:
 
 	if not arch_config_handler.args.silent:
 		aborted = False
-		res: bool = tui.run(config.confirm_config)
+		res: bool = tui.run(lambda: config.confirm_config(show_install_warnings=True))
 
 		if not res:
 			debug('Installation aborted')