diff --git a/nova-client/src/main/java/com/woorea/openstack/nova/api/ExtensionsResource.java b/nova-client/src/main/java/com/woorea/openstack/nova/api/ExtensionsResource.java
index 46e16c440..73761d664 100644
--- a/nova-client/src/main/java/com/woorea/openstack/nova/api/ExtensionsResource.java
+++ b/nova-client/src/main/java/com/woorea/openstack/nova/api/ExtensionsResource.java
@@ -21,7 +21,7 @@ public List list(boolean detail) {
 	public class List extends OpenStackRequest<Extensions> {
 
 	    public List(boolean detail) {
-	    	super(CLIENT, HttpMethod.GET, detail ? "extensions/detail" : "extensions", null, Extensions.class);
+	    	super(CLIENT, HttpMethod.GET, detail ? "/extensions/detail" : "/extensions", null, Extensions.class);
 	    }
 	    
 	 }
diff --git a/nova-client/src/main/java/com/woorea/openstack/nova/api/ServersResource.java b/nova-client/src/main/java/com/woorea/openstack/nova/api/ServersResource.java
index ca48b6fc4..9db068e90 100644
--- a/nova-client/src/main/java/com/woorea/openstack/nova/api/ServersResource.java
+++ b/nova-client/src/main/java/com/woorea/openstack/nova/api/ServersResource.java
@@ -536,6 +536,33 @@ public ListVolumeAttachments listVolumeAttachments(String serverId) {
 	public ShowVolumeAttachment showVolumeAttachment(String serverId, String volumeAttachmentId) {
 		return new ShowVolumeAttachment(serverId, volumeAttachmentId);
 	}
+	
+	public class AddSecurityGroup extends OpenStackRequest<Void> {
+
+		public AddSecurityGroup(String id, com.woorea.openstack.nova.model.ServerAction.AddSecurityGroup action) {
+			super(CLIENT, HttpMethod.POST, new StringBuilder("/servers/").append(id).append("/action"), Entity.json(action), Void.class);
+		}
+
+	}
+
+	public class RemoveSecurityGroup extends OpenStackRequest<Void> {
+
+		public RemoveSecurityGroup(String id, com.woorea.openstack.nova.model.ServerAction.RemoveSecurityGroup action) {
+			super(CLIENT, HttpMethod.POST, new StringBuilder("/servers/").append(id).append("/action"), Entity.json(action), Void.class);
+		}
+
+	}
+	
+	public AddSecurityGroup addSecurityGroup(String serverId, String securityGroupName) {
+		com.woorea.openstack.nova.model.ServerAction.AddSecurityGroup securityGroupAddAction = new com.woorea.openstack.nova.model.ServerAction.AddSecurityGroup(securityGroupName);
+		return new AddSecurityGroup(serverId, securityGroupAddAction);
+	}
+
+	public RemoveSecurityGroup removeSecurityGroup(String serverId, String securityGroupName) {
+		com.woorea.openstack.nova.model.ServerAction.RemoveSecurityGroup securityGroupRemoveAction = new com.woorea.openstack.nova.model.ServerAction.RemoveSecurityGroup(securityGroupName);
+		return new RemoveSecurityGroup(serverId, securityGroupRemoveAction);
+	}
+
 
 }
 
diff --git a/nova-model/src/main/java/com/woorea/openstack/nova/model/NetworkForCreate.java b/nova-model/src/main/java/com/woorea/openstack/nova/model/NetworkForCreate.java
index f5785393b..f0501d01d 100644
--- a/nova-model/src/main/java/com/woorea/openstack/nova/model/NetworkForCreate.java
+++ b/nova-model/src/main/java/com/woorea/openstack/nova/model/NetworkForCreate.java
@@ -9,6 +9,9 @@ public class NetworkForCreate {
 	private String id;
 	@JsonProperty("fixed_ip")
 	private String fixedIp;
+	@JsonProperty("port")
+	private String portId;
+	
 
 	public String getId() {
 		return id;
@@ -26,4 +29,14 @@ public void setFixedIp(String fixedIp) {
 		this.fixedIp = fixedIp;
 	}
 
+	public String getPortId() {
+		return portId;
+	}
+
+	public void setPortId(String portId) {
+		this.portId = portId;
+	}
+	
+	
+
 }
diff --git a/nova-model/src/main/java/com/woorea/openstack/nova/model/ServerAction.java b/nova-model/src/main/java/com/woorea/openstack/nova/model/ServerAction.java
index 26fa5a4a6..f2147d5d1 100644
--- a/nova-model/src/main/java/com/woorea/openstack/nova/model/ServerAction.java
+++ b/nova-model/src/main/java/com/woorea/openstack/nova/model/ServerAction.java
@@ -607,4 +607,69 @@ public void setMetadata(Map<String, String> metadata) {
 		
 	}
 	
+	@JsonRootName("addSecurityGroup")
+	public static final class AddSecurityGroup implements ServerAction {
+	
+		private String name;
+
+		public AddSecurityGroup() {
+			super();
+			// TODO Auto-generated constructor stub
+		}
+
+		public AddSecurityGroup(String securityGroupName) {
+			super();
+			this.name = securityGroupName;
+		}
+
+	
+
+		/**
+		 * @return the security group name
+		 */
+		public String getName() {
+			return name;
+		}
+
+		/**
+		 * @param name the security group name to set
+		 */
+		public void setName(String name) {
+			this.name = name;
+		}
+		
+	}
+	
+	@JsonRootName("removeSecurityGroup")
+	public static final class RemoveSecurityGroup implements ServerAction {
+	
+		private String name;
+
+		public RemoveSecurityGroup() {
+			super();
+		}
+
+		public RemoveSecurityGroup(String securityGroupName) {
+			super();
+			this.name = securityGroupName;
+		}
+
+	
+
+		/**
+		 * @return the security group name
+		 */
+		public String getName() {
+			return name;
+		}
+
+		/**
+		 * @param name the security group name to set
+		 */
+		public void setName(String name) {
+			this.name = name;
+		}
+		
+	}
+	
 }
diff --git a/nova-model/src/main/java/com/woorea/openstack/nova/model/ServerForCreate.java b/nova-model/src/main/java/com/woorea/openstack/nova/model/ServerForCreate.java
index 9f28a8113..6b6d8b3a2 100644
--- a/nova-model/src/main/java/com/woorea/openstack/nova/model/ServerForCreate.java
+++ b/nova-model/src/main/java/com/woorea/openstack/nova/model/ServerForCreate.java
@@ -38,6 +38,49 @@ public void setName(String name) {
 			this.name = name;
 		}
 
+	}
+
+	public static final class BlockDeviceMapping implements Serializable {
+
+		@JsonProperty("device_name")
+		private String deviceName;
+		
+		@JsonProperty("volume_id")
+		private String volumeId;
+		
+		@JsonProperty("delete_on_termination")
+		private boolean deleteOnTermination;
+
+		public BlockDeviceMapping() {
+		}
+
+		public String getDeviceName() {
+			return deviceName;
+		}
+
+		public void setDeviceName(String deviceName) {
+			this.deviceName = deviceName;
+		}
+
+		public String getVolumeId() {
+			return volumeId;
+		}
+
+		public void setVolumeId(String volumeId) {
+			this.volumeId = volumeId;
+		}
+
+		public boolean isDeleteOnTermination() {
+			return deleteOnTermination;
+		}
+
+		public void setDeleteOnTermination(boolean deleteOnTermination) {
+			this.deleteOnTermination = deleteOnTermination;
+		}
+
+		
+		
+
 	}
 
 	private String name;
@@ -52,8 +95,10 @@ public void setName(String name) {
 
 	private String accessIPv6;
 
+	@JsonProperty("min_count")
 	private Integer min;
 
+	@JsonProperty("max_count")
 	private Integer max;
 
 	private String diskConfig;
@@ -79,6 +124,9 @@ public void setName(String name) {
 
 	@JsonProperty("networks")
 	private List<NetworkForCreate> networks = new ArrayList<NetworkForCreate>();
+	
+	@JsonProperty("block_device_mapping")
+	private List<BlockDeviceMapping> blockDeviceMappings;
 
 	/**
 	 * @return the name
@@ -316,11 +364,21 @@ public void setNetworks(List<NetworkForCreate> networks) {
 		this.networks = networks;
 	}
 
+	
 	public void addNetworks(String id, String fixedIp) {
 		NetworkForCreate net = new NetworkForCreate();
 		net.setId(id);
 		net.setFixedIp(fixedIp);
 		this.networks.add(net);
 	}
+	
+	public List<BlockDeviceMapping> getBlockDeviceMappings() {
+		return blockDeviceMappings;
+	}
+
+	public void setBlockDeviceMappings(List<BlockDeviceMapping> blockDeviceMappings) {
+		this.blockDeviceMappings = blockDeviceMappings;
+	}
 
+	
 }