Fix partition creation size end (#2858)

archinstall/lib/disk/partitioning_menu.py

@@ -236,7 +236,9 @@ class PartitioningList(ListManager):
 	) -> Size | None:
 		match = re.match(r'([0-9]+)([a-zA-Z|%]*)', text, re.I)
 
-		if match:
+		if not match:
+			return None
+
 		str_value, unit = match.groups()
 
 		if unit == '%' and start:
@@ -250,10 +252,13 @@ class PartitioningList(ListManager):
 			return None
 
 		unit = Unit[unit] if unit else Unit.sectors
-			return Size(value, unit, sector_size)
+		size = Size(value, unit, sector_size)
 
+		if start and size <= start:
 			return None
 
+		return size
+
 	def _enter_size(
 		self,
 		sector_size: SectorSize,