diff --git a/blockdevice/util/util.go b/blockdevice/util/util.go
index db20575..a32d85c 100644
--- a/blockdevice/util/util.go
+++ b/blockdevice/util/util.go
@@ -23,6 +23,10 @@ func PartNo(partname string) (string, error) {
 	case strings.HasPrefix(p, "loop"):
 		idx := strings.LastIndex(partname, "p")
 
+		return partname[idx+1:], nil
+	case strings.HasPrefix(p, "md"):
+		idx := strings.LastIndex(partname, "p")
+
 		return partname[idx+1:], nil
 	case strings.HasPrefix(p, "sd"):
 		fallthrough
@@ -57,6 +61,8 @@ func DevnameFromPartname(partname string) (string, error) {
 		fallthrough
 	case strings.HasPrefix(p, "loop"):
 		return strings.TrimSuffix(p, "p"+partno), nil
+	case strings.HasPrefix(p, "md"):
+		return strings.TrimSuffix(p, "p"+partno), nil
 	case strings.HasPrefix(p, "sd"):
 		fallthrough
 	case strings.HasPrefix(p, "hd"):
@@ -81,6 +87,8 @@ func PartName(d string, n int) string {
 		fallthrough
 	case strings.HasPrefix(p, "loop"):
 		partname = fmt.Sprintf("%sp%d", p, n)
+	case strings.HasPrefix(p, "md"):
+		partname = fmt.Sprintf("%sp%d", p, n)
 	default:
 		partname = fmt.Sprintf("%s%d", p, n)
 	}
diff --git a/blockdevice/util/util_test.go b/blockdevice/util/util_test.go
index 58ddfbc..14c4c23 100644
--- a/blockdevice/util/util_test.go
+++ b/blockdevice/util/util_test.go
@@ -119,6 +119,13 @@ func Test_PartNo(t *testing.T) {
 			},
 			want: "3",
 		},
+		{
+			name: "md0p2",
+			args: args{
+				devname: "md0p2",
+			},
+			want: "2",
+		},
 	}
 
 	for _, tt := range tests {
@@ -206,6 +213,14 @@ func Test_DevnameFromPartname(t *testing.T) {
 			},
 			want: "mmcblk0",
 		},
+		{
+			name: "md0p1",
+			args: args{
+				devname: "md0p1",
+				partno:  "1",
+			},
+			want: "md0",
+		},
 	}
 
 	for _, tt := range tests {