diff --git a/ChangeLog b/ChangeLog
index e3f83b7e3..b684a2fff 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2006-06-24  Robert Millan  <robertmh@gnu.org>
+
+	* lib/device.c (write_to_partition): /dev/ataraid/ and /dev/rd/
+	partitions have a "p" prefix.  Add it.
+
 2006-06-24  Robert Millan  <robertmh@gnu.org>
 
 	* lib/device.c (get_i2o_disk_name): New function.
diff --git a/lib/device.c b/lib/device.c
index 5774291c6..8abd2a907 100644
--- a/lib/device.c
+++ b/lib/device.c
@@ -890,6 +890,12 @@ write_to_partition (char **map, int drive, int partition,
       if (strcmp (dev + strlen(dev) - 5, "/disc") == 0)
 	strcpy (dev + strlen(dev) - 5, "/part");
     }
+  else
+    {
+      if ((strncmp (dev, "/dev/ataraid/", 13) == 0) ||
+         (strncmp (dev, "/dev/rd/", 8) == 0))
+        strcpy (dev + strlen(dev), "p");
+    }
   sprintf (dev + strlen(dev), "%d", ((partition >> 16) & 0xFF) + 1);
   
   /* Open the partition.  */