ACTION=="change", SUBSYSTEM=="block", KERNEL=="loop*", ENV{DISK_MEDIA_CHANGE}=="1", TEST!="loop/backing_file", GROUP="disk", MODE="660"
# Provide a somewhat cleaned up field indicating the subsystem various
-# 'virtual' block devices belong too, in order to avoid replicating name based
+# 'virtual' block devices belong to, in order to avoid replicating name based
# pattern matching in every consumer
ACTION!="remove", SUBSYSTEM=="block", KERNEL=="dm-*", ENV{ID_BLOCK_SUBSYSTEM}="dm"
ACTION!="remove", SUBSYSTEM=="block", KERNEL=="loop*", ENV{ID_BLOCK_SUBSYSTEM}="loop"