diff --git a/builder/osc/bsusurrogate/builder.go b/builder/osc/bsusurrogate/builder.go
index 94de49b76..415b82e3b 100644
--- a/builder/osc/bsusurrogate/builder.go
+++ b/builder/osc/bsusurrogate/builder.go
@@ -18,6 +18,7 @@ type Config struct {
 	common.PackerConfig    `mapstructure:",squash"`
 	osccommon.AccessConfig `mapstructure:",squash"`
 	osccommon.RunConfig    `mapstructure:",squash"`
+	osccommon.BlockDevices `mapstructure:",squash"`
 	ctx                    interpolate.Context
 }
 
diff --git a/builder/osc/common/block_device.go b/builder/osc/common/block_device.go
new file mode 100644
index 000000000..fa2a16f4e
--- /dev/null
+++ b/builder/osc/common/block_device.go
@@ -0,0 +1,119 @@
+package common
+
+import (
+	"fmt"
+	"strings"
+
+	"github.com/hashicorp/packer/template/interpolate"
+	"github.com/outscale/osc-go/oapi"
+)
+
+// BlockDevice
+type BlockDevice struct {
+	DeleteOnVmDeletion bool   `mapstructure:"delete_on_vm_deletion"`
+	DeviceName         string `mapstructure:"device_name"`
+	IOPS               int64  `mapstructure:"iops"`
+	NoDevice           bool   `mapstructure:"no_device"`
+	SnapshotId         string `mapstructure:"snapshot_id"`
+	VirtualName        string `mapstructure:"virtual_name"`
+	VolumeType         string `mapstructure:"volume_type"`
+	VolumeSize         int64  `mapstructure:"volume_size"`
+	// Encrypted          bool   `mapstructure:"encrypted"`
+	// KmsKeyId           string `mapstructure:"kms_key_id"`
+}
+
+type BlockDevices struct {
+	OMIBlockDevices    `mapstructure:",squash"`
+	LaunchBlockDevices `mapstructure:",squash"`
+}
+
+type OMIBlockDevices struct {
+	OMIMappings []BlockDevice `mapstructure:"ami_block_device_mappings"`
+}
+
+type LaunchBlockDevices struct {
+	LaunchMappings []BlockDevice `mapstructure:"launch_block_device_mappings"`
+}
+
+func buildBlockDevices(b []BlockDevice) []*oapi.BlockDeviceMapping {
+	var blockDevices []*oapi.BlockDeviceMapping
+
+	for _, blockDevice := range b {
+		mapping := &oapi.BlockDeviceMapping{
+			DeviceName: blockDevice.DeviceName,
+		}
+
+		if blockDevice.NoDevice {
+			mapping.NoDevice = ""
+		} else if blockDevice.VirtualName != "" {
+			if strings.HasPrefix(blockDevice.VirtualName, "ephemeral") {
+				mapping.VirtualDeviceName = blockDevice.VirtualName
+			}
+		} else {
+			bsu := oapi.Bsu{
+				DeleteOnVmDeletion: blockDevice.DeleteOnVmDeletion,
+			}
+
+			if blockDevice.VolumeType != "" {
+				bsu.VolumeType = blockDevice.VolumeType
+			}
+
+			if blockDevice.VolumeSize > 0 {
+				bsu.VolumeSize = blockDevice.VolumeSize
+			}
+
+			// IOPS is only valid for io1 type
+			if blockDevice.VolumeType == "io1" {
+				bsu.Iops = blockDevice.IOPS
+			}
+
+			if blockDevice.SnapshotId != "" {
+				bsu.SnapshotId = blockDevice.SnapshotId
+			}
+
+			//missing
+			//BlockDevice Encrypted
+			//KmsKeyId
+
+			mapping.Bsu = bsu
+		}
+
+		blockDevices = append(blockDevices, mapping)
+	}
+	return blockDevices
+}
+
+func (b *BlockDevice) Prepare(ctx *interpolate.Context) error {
+	if b.DeviceName == "" {
+		return fmt.Errorf("The `device_name` must be specified " +
+			"for every device in the block device mapping.")
+	}
+	// Warn that encrypted must be true when setting kms_key_id
+	// if b.KmsKeyId != "" && b.Encrypted == false {
+	// 	return fmt.Errorf("The device %v, must also have `encrypted: "+
+	// 		"true` when setting a kms_key_id.", b.DeviceName)
+	// }
+	return nil
+}
+
+func (b *BlockDevices) Prepare(ctx *interpolate.Context) (errs []error) {
+	for _, d := range b.OMIMappings {
+		if err := d.Prepare(ctx); err != nil {
+			errs = append(errs, fmt.Errorf("OMIMapping: %s", err.Error()))
+		}
+	}
+	for _, d := range b.LaunchMappings {
+		if err := d.Prepare(ctx); err != nil {
+			errs = append(errs, fmt.Errorf("LaunchMapping: %s", err.Error()))
+		}
+	}
+	return errs
+}
+
+func (b *OMIBlockDevices) BuildOMIDevices() []*oapi.BlockDeviceMapping {
+	return buildBlockDevices(b.OMIMappings)
+}
+
+func (b *LaunchBlockDevices) BuildLaunchDevices() []*oapi.BlockDeviceMapping {
+	return buildBlockDevices(b.LaunchMappings)
+}
diff --git a/builder/osc/common/block_device_test.go b/builder/osc/common/block_device_test.go
new file mode 100644
index 000000000..c6489359a
--- /dev/null
+++ b/builder/osc/common/block_device_test.go
@@ -0,0 +1,163 @@
+package common
+
+import (
+	"reflect"
+	"testing"
+
+	"github.com/outscale/osc-go/oapi"
+)
+
+func TestBlockDevice(t *testing.T) {
+	cases := []struct {
+		Config *BlockDevice
+		Result *oapi.BlockDeviceMapping
+	}{
+		{
+			Config: &BlockDevice{
+				DeviceName:         "/dev/sdb",
+				SnapshotId:         "snap-1234",
+				VolumeType:         "standard",
+				VolumeSize:         8,
+				DeleteOnVmDeletion: true,
+			},
+
+			Result: &oapi.BlockDeviceMapping{
+				DeviceName: "/dev/sdb",
+				Bsu: oapi.Bsu{
+					SnapshotId:         "snap-1234",
+					VolumeType:         "standard",
+					VolumeSize:         8,
+					DeleteOnVmDeletion: true,
+				},
+			},
+		},
+		{
+			Config: &BlockDevice{
+				DeviceName: "/dev/sdb",
+				VolumeSize: 8,
+			},
+
+			Result: &oapi.BlockDeviceMapping{
+				DeviceName: "/dev/sdb",
+				Bsu: oapi.Bsu{
+					VolumeSize:         8,
+					DeleteOnVmDeletion: false,
+				},
+			},
+		},
+		{
+			Config: &BlockDevice{
+				DeviceName:         "/dev/sdb",
+				VolumeType:         "io1",
+				VolumeSize:         8,
+				DeleteOnVmDeletion: true,
+				IOPS:               1000,
+			},
+
+			Result: &oapi.BlockDeviceMapping{
+				DeviceName: "/dev/sdb",
+				Bsu: oapi.Bsu{
+					VolumeType:         "io1",
+					VolumeSize:         8,
+					DeleteOnVmDeletion: true,
+					Iops:               1000,
+				},
+			},
+		},
+		{
+			Config: &BlockDevice{
+				DeviceName:         "/dev/sdb",
+				VolumeType:         "gp2",
+				VolumeSize:         8,
+				DeleteOnVmDeletion: true,
+			},
+
+			Result: &oapi.BlockDeviceMapping{
+				DeviceName: "/dev/sdb",
+				Bsu: oapi.Bsu{
+					VolumeType:         "gp2",
+					VolumeSize:         8,
+					DeleteOnVmDeletion: true,
+				},
+			},
+		},
+		{
+			Config: &BlockDevice{
+				DeviceName:         "/dev/sdb",
+				VolumeType:         "gp2",
+				VolumeSize:         8,
+				DeleteOnVmDeletion: true,
+			},
+
+			Result: &oapi.BlockDeviceMapping{
+				DeviceName: "/dev/sdb",
+				Bsu: oapi.Bsu{
+					VolumeType:         "gp2",
+					VolumeSize:         8,
+					DeleteOnVmDeletion: true,
+				},
+			},
+		},
+		{
+			Config: &BlockDevice{
+				DeviceName:         "/dev/sdb",
+				VolumeType:         "standard",
+				DeleteOnVmDeletion: true,
+			},
+
+			Result: &oapi.BlockDeviceMapping{
+				DeviceName: "/dev/sdb",
+				Bsu: oapi.Bsu{
+					VolumeType:         "standard",
+					DeleteOnVmDeletion: true,
+				},
+			},
+		},
+		{
+			Config: &BlockDevice{
+				DeviceName:  "/dev/sdb",
+				VirtualName: "ephemeral0",
+			},
+
+			Result: &oapi.BlockDeviceMapping{
+				DeviceName:        "/dev/sdb",
+				VirtualDeviceName: "ephemeral0",
+			},
+		},
+		{
+			Config: &BlockDevice{
+				DeviceName: "/dev/sdb",
+				NoDevice:   true,
+			},
+
+			Result: &oapi.BlockDeviceMapping{
+				DeviceName: "/dev/sdb",
+				NoDevice:   "",
+			},
+		},
+	}
+
+	for _, tc := range cases {
+		omiBlockDevices := OMIBlockDevices{
+			OMIMappings: []BlockDevice{*tc.Config},
+		}
+
+		launchBlockDevices := LaunchBlockDevices{
+			LaunchMappings: []BlockDevice{*tc.Config},
+		}
+
+		expected := []*oapi.BlockDeviceMapping{tc.Result}
+
+		omiResults := omiBlockDevices.BuildOMIDevices()
+		if !reflect.DeepEqual(expected, omiResults) {
+			t.Fatalf("Bad block device, \nexpected: %#v\n\ngot: %#v",
+				expected, omiResults)
+		}
+
+		launchResults := launchBlockDevices.BuildLaunchDevices()
+		if !reflect.DeepEqual(expected, launchResults) {
+			t.Fatalf("Bad block device, \nexpected: %#v\n\ngot: %#v",
+				expected, launchResults)
+		}
+	}
+}