diff --git a/src/add-ons/kernel/partitioning_systems/atari/atari.cpp b/src/add-ons/kernel/partitioning_systems/atari/atari.cpp
index de777b93cc..47d6edb1e8 100644
--- a/src/add-ons/kernel/partitioning_systems/atari/atari.cpp
+++ b/src/add-ons/kernel/partitioning_systems/atari/atari.cpp
@@ -176,11 +176,22 @@ atari_scan_partition(int fd, partition_data *partition, void *_cookie)
 			TRACE(("atari: child partition exceeds existing space (%Ld bytes)\n", p->Size()*SECTSZ));
 			continue;
 		}
+		if (!isalnum(p->id[0]))
+			continue;
+		if (!isalnum(p->id[1]))
+			continue;
+		if (!isalnum(p->id[2]))
+			continue;
+		
 		partition_data *child = create_child_partition(partition->id, index, -1);
 		if (child == NULL) {
 			TRACE(("atari: Creating child at index %ld failed\n", index - 1));
 			return B_ERROR;
 		}
+#warning M68K: use a lookup table ?
+		char type[] = "??? Partition";
+		memcpy(type, p->id, 3);
+		child->type = strdup(type);
 		child->offset = partition->offset + p->Start() * (uint64)SECTSZ;
 		child->size = p->Size() * (uint64)SECTSZ;
 		child->block_size = SECTSZ;
diff --git a/src/add-ons/kernel/partitioning_systems/atari/atari.h b/src/add-ons/kernel/partitioning_systems/atari/atari.h
index c4d23f22bb..0f271b1035 100644
--- a/src/add-ons/kernel/partitioning_systems/atari/atari.h
+++ b/src/add-ons/kernel/partitioning_systems/atari/atari.h
@@ -14,7 +14,13 @@ struct atari_partition_entry {
 #define ATARI_PART_EXISTS	0x01
 #define ATARI_PART_BOOTABLE	0x80
 	uint8	flags;
-	char	id[3];	/* "GEM", ... should use "BFS" ? */
+	/* some known types */
+#define ATARI_PART_TYEP_GEM 'G', 'E', 'M'
+#define ATARI_PART_TYEP_LNX 'L', 'N', 'X'
+#define ATARI_PART_TYEP_OS9 'O', 'S', '9'
+	/* the one we'll use */
+#define ATARI_PART_TYEP_BFS 'B', 'F', 'S'
+	char	id[3];
 	uint32	start;
 	uint32	size;