proper check for enc_type

Author: haouarihk

archinstall/lib/disk/encryption_menu.py

@@ -163,7 +163,7 @@ def _preview(self, item: MenuItem) -> str | None:
 		if (enc_pwd := self._prev_password()) is not None:
 			output += f'\n{enc_pwd}'
 
-		if (enc_type := self._prev_type()) is not None and enc_type != EncryptionType.NoEncryption and (iter_time := self._prev_iter_time()) is not None:
+		if (iter_time := self._prev_iter_time()) is not None:
 			output += f'\n{iter_time}'
 
 		if (fido_device := self._prev_hsm()) is not None:
@@ -229,8 +229,9 @@ def _prev_hsm(self) -> str | None:
 
 	def _prev_iter_time(self) -> str | None:
 		iter_time = self._item_group.find_by_key('iter_time').value
+		enc_type = self._item_group.find_by_key('encryption_type').value
 
-		if iter_time:
+		if iter_time and enc_type != EncryptionType.NoEncryption:
 			return f'{tr("Iteration time")}: {iter_time}ms'
 
 		return None

archinstall/lib/interactions/general_conf.py

@@ -61,6 +61,7 @@ def ask_hostname(preset: str | None = None) -> str | None:
 		alignment=Alignment.CENTER,
 		allow_skip=True,
 		default_text=preset,
+		validator=lambda x: x if len(x) > 0 else tr('Hostname cannot be empty'),
 	).input()
 
 	match result.type_: