diff --git a/instances/tests/test_duplicate_devices.py b/instances/tests/test_duplicate_devices.py
new file mode 100644
index 00000000..b3108ef5
--- /dev/null
+++ b/instances/tests/test_duplicate_devices.py
@@ -0,0 +1,62 @@
+"""A device form sent twice (a double click, a resent request) adds the
+device once: libvirt takes the same disk file or MAC twice in the
+persistent definition."""
+
+from unittest.mock import MagicMock, patch
+
+from django.contrib.auth import get_user_model
+from django.contrib.messages import get_messages
+from django.test import TestCase
+from django.urls import reverse
+
+from computes.models import Compute
+from instances.models import Instance
+
+PATH = "/var/lib/libvirt/images/data.qcow2"
+MAC = "52:54:00:aa:bb:cc"
+
+
+class DuplicateDeviceTests(TestCase):
+    def setUp(self):
+        self.client.force_login(get_user_model().objects.create_superuser("dup-admin", "d@example.com", "pw"))
+        compute = Compute.objects.create(name="dup-c", hostname="192.0.2.40", login="root", password="", type=1)
+        self.vm = Instance.objects.create(compute=compute, name="dup-vm", uuid="12121212-0000-1111-2222-333333333333")
+        self.proxy = MagicMock()
+        self.proxy.get_disk_devices.return_value = []
+        self.proxy.get_media_devices.return_value = []
+        self.proxy.get_net_devices.return_value = []
+        self.proxy.get_disk_bus_types.return_value = ["virtio"]
+        self.proxy.get_cache_modes.return_value = {"default": "Default"}
+        patcher = patch("instances.models.wvmInstance", return_value=self.proxy)
+        patcher.start()
+        self.addCleanup(patcher.stop)
+
+    def post(self, name, data):
+        response = self.client.post(reverse(f"instances:{name}", args=[self.vm.pk]), data)
+        return [str(m) for m in get_messages(response.wsgi_request)]
+
+    @patch("instances.views.wvmStorage")
+    def test_a_disk_of_the_vm_is_not_attached_again(self, storage):
+        pool = storage.return_value
+        pool.get_volumes.return_value = ["data.qcow2"]
+        pool.get_type.return_value = "dir"
+        pool.get_volume_format_type.return_value = "qcow2"
+        pool.get_volume_type.return_value = "file"
+        pool.get_volume.return_value.path.return_value = PATH
+        form = {"selected_storage": "default", "vols": "data.qcow2", "bus": "virtio", "cache": "default"}
+        self.post("add_existing_vol", form)
+        self.proxy.attach_disk.assert_called_once()
+        # the first attach is in the persistent definition only (a shut-off VM)
+        self.proxy.get_disk_devices.side_effect = lambda config=False: [{"path": PATH, "dev": "vdb"}] if config else []
+        self.assertEqual(self.post("add_existing_vol", form), ["data.qcow2 is already a disk of this VM"])
+        self.proxy.attach_disk.assert_called_once()
+
+    def test_a_nic_with_the_mac_of_another_is_not_added(self):
+        form = {"add-net-network": "net:default", "add-net-mac": MAC, "add-net-model": "virtio"}
+        self.post("add_network", form)
+        self.proxy.add_network.assert_called_once()
+        self.proxy.get_net_devices.side_effect = lambda config=False: [{"mac": MAC}] if config else []
+        form["add-net-mac"] = MAC.upper()
+        self.assertEqual(self.post("add_network", form),
+                         [f"The VM already has a network device with MAC {MAC.upper()}"])
+        self.proxy.add_network.assert_called_once()
diff --git a/instances/views.py b/instances/views.py
index f4b19c64..319bf07a 100755
--- a/instances/views.py
+++ b/instances/views.py
@@ -1417,6 +1417,11 @@ def add_existing_vol(request, pk):
         # an iSCSI volume's path is not the pool target plus its name
         source = conn_create.get_volume(name).path()
 
+    # a form sent twice would attach the file twice, and the VM would not start again
+    if source in {disk["path"] for disk in instance.disks + instance.config_disks}:
+        messages.error(request, _("%(volume)s is already a disk of this VM") % {"volume": name})
+        return _back(request, pk, "disks")
+
     target_dev = utils.get_new_disk_dev(
         instance.media + instance.config_media, instance.disks + instance.config_disks, bus
     )
@@ -2014,6 +2019,10 @@ def add_network(request, pk):
         messages.error(request, _("No network selected"))
         return _back(request, pk, "network")
     mac = request.POST.get("add-net-mac")
+    # the form fills in a random MAC: a form sent twice would add a second NIC with it
+    if mac and mac.lower() in {net["mac"].lower() for net in instance.networks + instance.config_networks}:
+        messages.error(request, _("The VM already has a network device with MAC %(mac)s") % {"mac": mac})
+        return _back(request, pk, "network")
     nwfilter = request.POST.get("add-net-nwfilter")
     (source, source_type) = utils.get_network_tuple(network)
     model = request.POST.get("add-net-model")
diff --git a/locale/tr/LC_MESSAGES/django.mo b/locale/tr/LC_MESSAGES/django.mo
index 0db7dc95..d42e8243 100644
Binary files a/locale/tr/LC_MESSAGES/django.mo and b/locale/tr/LC_MESSAGES/django.mo differ
diff --git a/locale/tr/LC_MESSAGES/django.po b/locale/tr/LC_MESSAGES/django.po
index cbdb8bb5..0634a4f8 100644
--- a/locale/tr/LC_MESSAGES/django.po
+++ b/locale/tr/LC_MESSAGES/django.po
@@ -11,7 +11,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: PACKAGE VERSION\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2026-11-05 07:49+0000\n"
+"POT-Creation-Date: 2026-11-05 08:41+0000\n"
 "PO-Revision-Date: 2020-11-04 12:00+0000\n"
 "Last-Translator: catborise <muhammetalisag@gmail.com>, 2020\n"
 "Language-Team: Turkish (https://www.transifex.com/catborise/teams/110663/tr/)\n"
@@ -2922,7 +2922,7 @@ msgstr ""
 msgid "Create VM"
 msgstr "Sanal makine oluştur"
 
-#: instances/jobs.py:756 instances/views.py:2468
+#: instances/jobs.py:756 instances/views.py:2480
 msgid "A virtual machine with this name already exists"
 msgstr "Bu isimde bir sanal makine mevcut"
 
@@ -3282,7 +3282,7 @@ msgid "Disk source"
 msgstr "Disk kaynağı"
 
 #: instances/templates/add_instance_volume.html:21
-#: instances/templates/create_instance_w2.html:134 instances/views.py:2487
+#: instances/templates/create_instance_w2.html:134 instances/views.py:2499
 msgid "New disk"
 msgstr "Yeni disk"
 
@@ -3654,7 +3654,7 @@ msgstr "Özel CPU modelleri"
 msgid "Size (GiB)"
 msgstr "Boyut (GiB)"
 
-#: instances/templates/create_instance_w2.html:161 instances/views.py:2488
+#: instances/templates/create_instance_w2.html:161 instances/views.py:2500
 msgid "Existing volumes"
 msgstr "Mevcut birimler"
 
@@ -3690,7 +3690,7 @@ msgstr "Aygıt"
 msgid "Remove"
 msgstr "Kaldır"
 
-#: instances/templates/create_instance_w2.html:194 instances/views.py:2489
+#: instances/templates/create_instance_w2.html:194 instances/views.py:2501
 msgid "Clone from template"
 msgstr "Şablondan klonla"
 
@@ -5853,38 +5853,38 @@ msgstr "Geçersiz MAC adresi"
 msgid "More MAC addresses than networks"
 msgstr "Ağlardan daha fazla MAC adresi"
 
-#: instances/views.py:170
+#: instances/views.py:171
 msgid "Enter an IP address, a network such as 192.0.2.0/24, or a MAC address."
 msgstr "Bir IP adresi, 192.0.2.0/24 gibi bir ağ ya da bir MAC adresi girin."
 
-#: instances/views.py:176 instances/views.py:210
+#: instances/views.py:177 instances/views.py:211
 msgid "Too many searches are still running; try again shortly."
 msgstr "Çok fazla arama hâlâ çalışıyor; birazdan yeniden deneyin."
 
-#: instances/views.py:256
+#: instances/views.py:257
 #, python-format
 msgid "The host %(host)s of '%(name)s' cannot be reached: %(error)s"
 msgstr "'%(name)s' sanal makinesinin sunucusu %(host)s erişilemiyor: %(error)s"
 
-#: instances/views.py:262
+#: instances/views.py:263
 #, python-format
 msgid "The host of '%(name)s' cannot be reached right now."
 msgstr "'%(name)s' sanal makinesinin sunucusuna şu anda erişilemiyor."
 
-#: instances/views.py:263
+#: instances/views.py:264
 msgid " Jobs on it can be followed under Jobs in the menu."
 msgstr " Üzerindeki işler menüdeki İşler bölümünden izlenebilir."
 
-#: instances/views.py:365
+#: instances/views.py:366
 msgid "There is no other host to migrate to."
 msgstr "Taşınacak başka bir sunucu yok."
 
-#: instances/views.py:367
+#: instances/views.py:368
 msgid "A VM migrates when it is running, paused or shut off."
 msgstr ""
 "Sanal makine çalışırken, duraklatılmışken ya da kapalıyken taşınabilir."
 
-#: instances/views.py:369
+#: instances/views.py:370
 msgid ""
 "A VM with snapshots cannot be migrated: its snapshots stay on this host. "
 "Delete them first."
@@ -5892,7 +5892,7 @@ msgstr ""
 "Anlık görüntüsü olan bir sanal makine taşınamaz: anlık görüntüleri bu "
 "sunucuda kalır. Önce onları silin."
 
-#: instances/views.py:371
+#: instances/views.py:372
 msgid ""
 "A VM with host devices cannot be migrated: the destination may not have them."
 " Remove them first."
@@ -5900,11 +5900,11 @@ msgstr ""
 "Sunucu aygıtları olan bir sanal makine taşınamaz: hedefte bu aygıtlar "
 "olmayabilir. Önce onları kaldırın."
 
-#: instances/views.py:633
+#: instances/views.py:634
 msgid "The VM was moved meanwhile; try again."
 msgstr "Sanal makine bu arada taşındı; yeniden deneyin."
 
-#: instances/views.py:745
+#: instances/views.py:746
 msgid ""
 "The running VM has no free PCI slot for another disk on this bus: choose the "
 "scsi bus if the VM has a SCSI controller, or shut the VM down and add the "
@@ -5917,7 +5917,7 @@ msgstr ""
 "yuvaları ekle, sonraki başlatmadan itibaren ona boş yuvalar verir. Yeni bir "
 "birim havuzunda kalır, mevcut birim olarak eklenebilir."
 
-#: instances/views.py:749
+#: instances/views.py:750
 msgid ""
 "The running VM has no free PCI slot for the SCSI controller the disk needs: "
 "shut the VM down and add the disk then; Add PCIe slots on the Disks tab gives"
@@ -5929,186 +5929,191 @@ msgstr ""
 "PCIe yuvaları ekle, sonraki başlatmadan itibaren ona boş yuvalar verir. Yeni "
 "bir birim havuzunda kalır, mevcut birim olarak eklenebilir."
 
-#: instances/views.py:767
+#: instances/views.py:768
 #, python-format
 msgid "Invalid disk options: %(options)s"
 msgstr "Geçersiz disk seçenekleri: %(options)s"
 
-#: instances/views.py:777 instances/views.py:792
+#: instances/views.py:778 instances/views.py:793
 msgid "Templates cannot be started."
 msgstr "Şablon makineler başlatılamaz."
 
-#: instances/views.py:888
+#: instances/views.py:889
 #, python-format
 msgid "Disk %(path)s was kept: a disk file that stays needs it"
 msgstr "%(path)s diski korundu: kalan bir disk dosyası ona ihtiyaç duyuyor"
 
-#: instances/views.py:894
+#: instances/views.py:895
 #, python-format
 msgid "The VM is removed, but disk %(path)s was not deleted: %(err)s"
 msgstr "Sanal makine kaldırıldı, ancak %(path)s diski silinmedi: %(err)s"
 
-#: instances/views.py:903
+#: instances/views.py:904
 #, python-format
 msgid "Disk %(path)s is used by another VM and was kept"
 msgstr ""
 "%(path)s diski başka bir sanal makine tarafından kullanılıyor ve korundu"
 
-#: instances/views.py:1025
+#: instances/views.py:1026
 #, python-format
 msgid "Set the gstfsd key of %(compute)s first (Computes, edit the host)"
 msgstr ""
 "Önce %(compute)s sunucusunun gstfsd anahtarını ayarlayın (Sunucular, sunucuyu"
 " düzenle)"
 
-#: instances/views.py:1031 instances/views.py:1045 instances/views.py:1054
+#: instances/views.py:1033 instances/views.py:1048 instances/views.py:1057
 #, python-format
 msgid "gstfsd error: %(err)s"
 msgstr "gstfsd hatası: %(err)s"
 
-#: instances/views.py:1055
+#: instances/views.py:1058
 msgid "the reply is not signed with the key"
 msgstr "yanıt anahtarla imzalanmamış"
 
-#: instances/views.py:1063
+#: instances/views.py:1066
 msgid "Shut the VM down, or start its QEMU guest agent, and try again"
 msgstr ""
 "Sanal makineyi kapatın ya da QEMU konuk ajanını başlatın ve yeniden deneyin"
 
-#: instances/views.py:1076
+#: instances/views.py:1079
 msgid "The change may still be made when the agent answers again."
 msgstr "Ajan yeniden yanıt verdiğinde değişiklik yine de yapılabilir."
 
-#: instances/views.py:1103
+#: instances/views.py:1106
 msgid "Reset root password"
 msgstr "Root parolasını sıfırla"
 
-#: instances/views.py:1107
+#: instances/views.py:1110
 msgid "Enter a password"
 msgstr "Bir parola girin"
 
-#: instances/views.py:1121
+#: instances/views.py:1124
 msgid "Select an SSH public key"
 msgstr "Bir SSH açık anahtarı seçin"
 
-#: instances/views.py:1143
+#: instances/views.py:1146
 #, python-format
 msgid "Installed new SSH public key %(keyname)s"
 msgstr "Yeni %(keyname)s SSH açık anahtarı yüklendi"
 
-#: instances/views.py:1163
+#: instances/views.py:1166
 msgid "Enter a whole number of vCPUs"
 msgstr "vCPU sayısı için bir tam sayı girin"
 
-#: instances/views.py:1167
+#: instances/views.py:1170
 msgid "Shut off the VM to change its vCPUs"
 msgstr "vCPU'larını değiştirmek için sanal makineyi kapatın"
 
-#: instances/views.py:1170
+#: instances/views.py:1173
 msgid "The current vCPUs cannot be more than the maximum"
 msgstr "Geçerli vCPU sayısı en fazla değerden büyük olamaz"
 
-#: instances/views.py:1177
+#: instances/views.py:1180
 #, python-format
 msgid "%(quota)s: cannot resize the CPU of '%(instance_name)s'."
 msgstr "%(quota)s: '%(instance_name)s' CPU'su yeniden boyutlandırılamıyor."
 
-#: instances/views.py:1185
+#: instances/views.py:1188
 #, python-format
 msgid "vCPUs set to %(cur)s (maximum %(max)s)"
 msgstr "vCPU sayısı %(cur)s olarak ayarlandı (en fazla %(max)s)"
 
-#: instances/views.py:1204
+#: instances/views.py:1207
 msgid "Enter a whole number for memory"
 msgstr "Bellek için bir tam sayı girin"
 
-#: instances/views.py:1207
+#: instances/views.py:1210
 msgid "The current memory cannot be more than the maximum"
 msgstr "Geçerli bellek en fazla değerden büyük olamaz"
 
-#: instances/views.py:1211
+#: instances/views.py:1214
 #, python-format
 msgid "%(quota)s: cannot resize the memory of '%(instance_name)s'."
 msgstr "%(quota)s: '%(instance_name)s' belleği yeniden boyutlandırılamıyor."
 
-#: instances/views.py:1217
+#: instances/views.py:1220
 #, python-format
 msgid "Memory set to %(cur)s MiB (maximum %(max)s MiB)"
 msgstr "Bellek %(cur)s MiB olarak ayarlandı (en fazla %(max)s MiB)"
 
-#: instances/views.py:1237
+#: instances/views.py:1240
 msgid "Enter disk sizes as whole GiB"
 msgstr "Disk boyutlarını tam GiB olarak girin"
 
-#: instances/views.py:1241
+#: instances/views.py:1244
 #, python-format
 msgid "%(dev)s is %(size)s: a disk cannot shrink"
 msgstr "%(dev)s boyutu %(size)s: disk küçültülemez"
 
-#: instances/views.py:1249
+#: instances/views.py:1252
 msgid "No disks were selected or valid for resizing."
 msgstr "Boyutlandırma için seçilmiş ya da geçerli disk yok."
 
-#: instances/views.py:1258
+#: instances/views.py:1261
 #, python-format
 msgid "%(quota)s: cannot resize the disks of '%(instance_name)s'."
 msgstr "%(quota)s: '%(instance_name)s' diskleri yeniden boyutlandırılamıyor."
 
-#: instances/views.py:1270
+#: instances/views.py:1273
 #, python-format
 msgid "The storage pool of %(dev)s cannot resize its volumes"
 msgstr "%(dev)s diskinin depolama havuzu birimlerini boyutlandıramaz"
 
-#: instances/views.py:1272
+#: instances/views.py:1275
 #, python-format
 msgid "Disk is resized: %(dev)s"
 msgstr "Disk boyutu değiştirildi: %(dev)s"
 
-#: instances/views.py:1366
+#: instances/views.py:1369
 msgid "The VM's machine has no PCIe slots to add"
 msgstr "Sanal makinenin makine tipinde eklenecek PCIe yuvası yok"
 
-#: instances/views.py:1371
+#: instances/views.py:1374
 #, python-format
 msgid "%(count)s PCIe slots added"
 msgstr "%(count)s PCIe yuvası eklendi"
 
-#: instances/views.py:1373
+#: instances/views.py:1376
 #, python-format
 msgid "%(count)s PCIe slots added: the VM gets them at its next start"
 msgstr ""
 "%(count)s PCIe yuvası eklendi: sanal makine bunları sonraki başlatmasında "
 "alır"
 
-#: instances/views.py:1504
+#: instances/views.py:1422
+#, python-format
+msgid "%(volume)s is already a disk of this VM"
+msgstr "%(volume)s zaten bu sanal makinenin bir diski"
+
+#: instances/views.py:1512
 msgid "Volume changes are applied. But it will be activated after shutdown"
 msgstr ""
 "Birim değişiklikleri uygulandı. Ama yeniden başlatıldıktan sonra uygulanacak"
 
-#: instances/views.py:1509
+#: instances/views.py:1517
 msgid "Volume is changed successfully."
 msgstr "Birim başarıyla değiştirildi."
 
-#: instances/views.py:1527
+#: instances/views.py:1535
 #, python-format
 msgid "Disk %(dev)s is not a storage volume of this instance"
 msgstr "%(dev)s diski bu sanal makinenin bir depolama birimi değil"
 
-#: instances/views.py:1534
+#: instances/views.py:1542
 #, python-format
 msgid "Disk %(dev)s has a pending change; delete it once the VM is shut down"
 msgstr ""
 "%(dev)s diskinin bekleyen bir değişikliği var; sanal makine kapatıldığında "
 "silin"
 
-#: instances/views.py:1549
+#: instances/views.py:1557
 #, python-format
 msgid "Volume %(vol)s is used by another VM; detach it instead"
 msgstr ""
 "%(vol)s birimi başka bir sanal makine tarafından kullanılıyor; onun yerine "
 "ayırın"
 
-#: instances/views.py:1561
+#: instances/views.py:1569
 #, python-format
 msgid ""
 "The guest has not released disk %(dev)s yet; volume %(vol)s was kept. Delete "
@@ -6117,57 +6122,57 @@ msgstr ""
 "Konuk sistem %(dev)s diskini henüz bırakmadı; %(vol)s birimi korundu. Sanal "
 "makine kapatıldığında depolama havuzundan silin."
 
-#: instances/views.py:1572
+#: instances/views.py:1580
 #, python-format
 msgid "Disk %(dev)s was detached, but its volume was kept: %(err)s"
 msgstr "%(dev)s diski ayrıldı, ancak birimi korundu: %(err)s"
 
-#: instances/views.py:1598
+#: instances/views.py:1606
 #, python-format
 msgid "This VM cannot take a CD-ROM on the %(bus)s bus now"
 msgstr "Bu sanal makineye şu anda %(bus)s veri yolunda CD-ROM eklenemez"
 
-#: instances/views.py:1601
+#: instances/views.py:1609
 msgid "A USB CD-ROM needs an ISO image: libvirt has no empty USB drive"
 msgstr "USB CD-ROM bir ISO imajı ister: libvirt boş USB sürücü desteklemiyor"
 
-#: instances/views.py:1682
+#: instances/views.py:1690
 #, python-format
 msgid "Pool %(pool)s was not read again: %(err)s"
 msgstr "%(pool)s havuzu yeniden okunamadı: %(err)s"
 
-#: instances/views.py:1703
+#: instances/views.py:1711
 #, python-format
 msgid "Snapshot was not deleted: %(err)s"
 msgstr "Anlık görüntü silinmedi: %(err)s"
 
-#: instances/views.py:1818
+#: instances/views.py:1826
 msgid "Add at least one device to the boot order."
 msgstr "Ön yükleme sırasına en az bir aygıt ekleyin."
 
-#: instances/views.py:1832
+#: instances/views.py:1840
 msgid "Boot order changed. It applies at the next start."
 msgstr "Ön yükleme sırası değiştirildi. Sonraki başlatmada uygulanır."
 
-#: instances/views.py:1834
+#: instances/views.py:1842
 msgid "Boot order changed successfully."
 msgstr "Ön yükleme sırası başarıyla değiştirildi."
 
-#: instances/views.py:1854
+#: instances/views.py:1862
 msgid "The XML is empty"
 msgstr "XML boş"
 
-#: instances/views.py:1858 instances/views.py:2478
+#: instances/views.py:1866 instances/views.py:2490
 #, python-format
 msgid "The XML is not well-formed: %(error)s"
 msgstr "XML düzgün biçimlendirilmemiş: %(error)s"
 
-#: instances/views.py:1860
+#: instances/views.py:1868
 #, python-format
 msgid "The XML must keep the VM's UUID %(uuid)s."
 msgstr "XML, sanal makinenin %(uuid)s UUID'sini korumalıdır."
 
-#: instances/views.py:1864
+#: instances/views.py:1872
 msgid ""
 "The definition has changed since the editor was opened. Reload the page to "
 "edit the current one."
@@ -6175,35 +6180,40 @@ msgstr ""
 "Düzenleyici açıldığından beri tanım değişti. Geçerli tanımı düzenlemek için "
 "sayfayı yeniden yükleyin."
 
-#: instances/views.py:1876
+#: instances/views.py:1884
 msgid "The XML definition was saved."
 msgstr "XML tanımı kaydedildi."
 
-#: instances/views.py:1878
+#: instances/views.py:1886
 msgid "The XML definition was saved; the VM uses it from its next start."
 msgstr ""
 "XML tanımı kaydedildi; sanal makine onu sonraki başlatmasından itibaren "
 "kullanır."
 
-#: instances/views.py:1959
+#: instances/views.py:1967
 msgid "Select one network interface to change"
 msgstr "Değiştirilecek bir ağ arabirimi seçin"
 
-#: instances/views.py:1997
+#: instances/views.py:2005
 msgid "Network Device Config is changed. Please shutdown instance to activate."
 msgstr ""
 "Ağ aygıtı yapılandırması değiştirildi. Aktifleştirmek için lütfen sanal "
 "makineyi kapatın."
 
-#: instances/views.py:1999
+#: instances/views.py:2007
 msgid "Network device changed"
 msgstr "Ağ aygıtı değiştirildi"
 
-#: instances/views.py:2011
+#: instances/views.py:2019
 msgid "No network selected"
 msgstr "Ağ seçilmedi"
 
-#: instances/views.py:2031
+#: instances/views.py:2024
+#, python-format
+msgid "The VM already has a network device with MAC %(mac)s"
+msgstr "Sanal makinede %(mac)s MAC adresli bir ağ aygıtı zaten var"
+
+#: instances/views.py:2043
 msgid ""
 "The running VM has no free PCI slot for another network device: shut it down "
 "and add the device then; Add PCIe slots on the Disks tab gives it free ones "
@@ -6213,21 +6223,21 @@ msgstr ""
 "aygıtı sonra ekleyin; Diskler sekmesindeki PCIe yuvaları ekle, sonraki "
 "başlatmadan itibaren ona boş yuvalar verir."
 
-#: instances/views.py:2072 instances/views.py:2078
+#: instances/views.py:2084 instances/views.py:2090
 msgid "The VM has it"
 msgstr "Sanal makinede var"
 
-#: instances/views.py:2109
+#: instances/views.py:2121
 #, python-format
 msgid "The host has no USB device %(device)s"
 msgstr "Sunucuda %(device)s USB aygıtı yok"
 
-#: instances/views.py:2130
+#: instances/views.py:2142
 #, python-format
 msgid "The host has no PCI device %(device)s"
 msgstr "Sunucuda %(device)s PCI aygıtı yok"
 
-#: instances/views.py:2148
+#: instances/views.py:2160
 #, python-format
 msgid ""
 "Removal of PCI device %(address)s requested: the guest has not let it go yet;"
@@ -6237,20 +6247,20 @@ msgstr ""
 "bırakmadı; bırakana ya da sanal makine durana kadar çalışan sanal makinede "
 "kalır."
 
-#: instances/views.py:2193 instances/views.py:2223
+#: instances/views.py:2205 instances/views.py:2235
 msgid "Select a network interface and a QoS direction"
 msgstr "Bir ağ arabirimi ve bir QoS yönü seçin"
 
-#: instances/views.py:2196 vrtManager/network.py:459
+#: instances/views.py:2208 vrtManager/network.py:459
 msgid "QoS rates must be whole numbers"
 msgstr "QoS hızları tam sayı olmalıdır"
 
-#: instances/views.py:2203 networks/views.py:229
+#: instances/views.py:2215 networks/views.py:229
 #, python-format
 msgid "%(qos_dir)s QoS is set"
 msgstr "%(qos_dir)s QoS ayarlandı"
 
-#: instances/views.py:2208
+#: instances/views.py:2220
 #, python-format
 msgid ""
 "%(qos_dir)s QoS is set. A running VM gets it after it is powered off and on."
@@ -6258,12 +6268,12 @@ msgstr ""
 "%(qos_dir)s QoS ayarlandı. Çalışan bir sanal makine, kapatılıp açıldıktan "
 "sonra bunu alır."
 
-#: instances/views.py:2230 networks/views.py:255
+#: instances/views.py:2242 networks/views.py:255
 #, python-format
 msgid "%(qos_dir)s QoS is deleted"
 msgstr "%(qos_dir)s QoS silindi"
 
-#: instances/views.py:2235
+#: instances/views.py:2247
 #, python-format
 msgid ""
 "%(qos_dir)s QoS is deleted. A running VM keeps the old limit until it is "
@@ -6272,21 +6282,21 @@ msgstr ""
 "%(qos_dir)s QoS silindi. Çalışan bir sanal makine, kapatılıp açılana kadar "
 "eski sınırı korur."
 
-#: instances/views.py:2263
+#: instances/views.py:2275
 msgid "Only one owner is allowed and the one already added"
 msgstr "Sadece bir sahibe izin verilmiştir ve bir sahip zaten eklenmiş"
 
-#: instances/views.py:2265
+#: instances/views.py:2277
 #, python-format
 msgid "%(user)s is already an owner"
 msgstr "%(user)s zaten bir sahip"
 
-#: instances/views.py:2309
+#: instances/views.py:2321
 #, python-format
 msgid "Console settings were not saved: %(errors)s"
 msgstr "Konsol ayarları kaydedilmedi: %(errors)s"
 
-#: instances/views.py:2331
+#: instances/views.py:2343
 msgid ""
 "Error setting console password. You should check that your instance have an "
 "graphic device."
@@ -6294,65 +6304,65 @@ msgstr ""
 "Konsol parolası ayarlanırken hata oluştu. Sanal makinenin bir grafik aygıtına"
 " sahip olduğundan emin olunuz."
 
-#: instances/views.py:2378
+#: instances/views.py:2390
 msgid "Shut the VM down to change whether it is a template."
 msgstr "Şablon olup olmadığını değiştirmek için sanal makineyi kapatın."
 
-#: instances/views.py:2384
+#: instances/views.py:2396
 #, python-format
 msgid "%(quota)s: '%(instance_name)s' stays a template."
 msgstr "%(quota)s: '%(instance_name)s' şablon olarak kalıyor."
 
-#: instances/views.py:2466
+#: instances/views.py:2478
 msgid "The XML has no name"
 msgstr "XML'de ad yok"
 
-#: instances/views.py:2480 webvirtcloud/middleware.py:79
+#: instances/views.py:2492 webvirtcloud/middleware.py:79
 #, python-format
 msgid "libvirt Error - %(exception)s"
 msgstr "libvirt Hatası - %(exception)s"
 
-#: instances/views.py:2487
+#: instances/views.py:2499
 msgid "An empty disk of the size you set"
 msgstr "Belirlediğiniz boyutta boş bir disk"
 
-#: instances/views.py:2488
+#: instances/views.py:2500
 msgid "Volumes already in a pool"
 msgstr "Bir havuzda zaten bulunan birimler"
 
-#: instances/views.py:2489
+#: instances/views.py:2501
 msgid "A copy of a template volume"
 msgstr "Bir şablon biriminin kopyası"
 
-#: instances/views.py:2578
+#: instances/views.py:2590
 msgid "You haven't defined any storage pools"
 msgstr "Hiç bir depolama havuzu tanımlamadınız"
 
-#: instances/views.py:2580
+#: instances/views.py:2592
 msgid "You haven't defined any network pools"
 msgstr "Hiç bir ağ havuzu tanımlamadınız"
 
-#: instances/views.py:2643
+#: instances/views.py:2655
 msgid "Flavor Created"
 msgstr "Flavor Oluşturuldu"
 
-#: instances/views.py:2651
+#: instances/views.py:2663
 msgid "Create Flavor"
 msgstr "Kullanıcı Oluştur"
 
-#: instances/views.py:2666
+#: instances/views.py:2678
 msgid "Flavor Updated"
 msgstr "Flavor Güncellendi"
 
-#: instances/views.py:2672
+#: instances/views.py:2684
 msgid "Update Flavor"
 msgstr "Flavor Güncelle"
 
-#: instances/views.py:2684
+#: instances/views.py:2696
 msgid "Flavor Deleted"
 msgstr "Flavor Silindi"
 
-#: instances/views.py:2690
+#: instances/views.py:2702
 msgid "Only the size template goes; VMs made from it keep their size."
 msgstr ""
 "Yalnızca boyut şablonu silinir; ondan oluşturulan sanal makineler boyutlarını"
@@ -9868,10 +9878,10 @@ msgid "Secret %(uuid)s is used by %(named)s; remove it from them first"
 msgstr ""
 "%(uuid)s parolası %(named)s tarafından kullanılıyor; önce onlardan kaldırın"
 
-#: webvirtcloud/settings.py:326
+#: webvirtcloud/settings.py:327
 msgid "Localhost"
 msgstr "Yerel sunucu"
 
-#: webvirtcloud/settings.py:327
+#: webvirtcloud/settings.py:328
 msgid "All interfaces"
 msgstr "Tüm arabirimler"
diff --git a/locale/zh/LC_MESSAGES/django.mo b/locale/zh/LC_MESSAGES/django.mo
index 6bf6d42b..2b9314be 100644
Binary files a/locale/zh/LC_MESSAGES/django.mo and b/locale/zh/LC_MESSAGES/django.mo differ
diff --git a/locale/zh/LC_MESSAGES/django.po b/locale/zh/LC_MESSAGES/django.po
index 4ce41557..f844f414 100644
--- a/locale/zh/LC_MESSAGES/django.po
+++ b/locale/zh/LC_MESSAGES/django.po
@@ -7,7 +7,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: \n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2026-11-05 07:49+0000\n"
+"POT-Creation-Date: 2026-11-05 08:41+0000\n"
 "PO-Revision-Date: \n"
 "Last-Translator: \n"
 "Language-Team: \n"
@@ -2807,7 +2807,7 @@ msgstr "libvirt 没有复制的结果；请检查这些卷，然后处理此任
 msgid "Create VM"
 msgstr "创建虚拟机"
 
-#: instances/jobs.py:756 instances/views.py:2468
+#: instances/jobs.py:756 instances/views.py:2480
 msgid "A virtual machine with this name already exists"
 msgstr "同名虚拟机已存在"
 
@@ -3157,7 +3157,7 @@ msgid "Disk source"
 msgstr "磁盘来源"
 
 #: instances/templates/add_instance_volume.html:21
-#: instances/templates/create_instance_w2.html:134 instances/views.py:2487
+#: instances/templates/create_instance_w2.html:134 instances/views.py:2499
 msgid "New disk"
 msgstr "新磁盘"
 
@@ -3521,7 +3521,7 @@ msgstr "自定义 CPU 型号"
 msgid "Size (GiB)"
 msgstr "大小（GiB）"
 
-#: instances/templates/create_instance_w2.html:161 instances/views.py:2488
+#: instances/templates/create_instance_w2.html:161 instances/views.py:2500
 msgid "Existing volumes"
 msgstr "已有卷"
 
@@ -3557,7 +3557,7 @@ msgstr "设备"
 msgid "Remove"
 msgstr "移除"
 
-#: instances/templates/create_instance_w2.html:194 instances/views.py:2489
+#: instances/templates/create_instance_w2.html:194 instances/views.py:2501
 msgid "Clone from template"
 msgstr "从模板克隆"
 
@@ -5563,53 +5563,53 @@ msgstr "无效的 MAC 地址"
 msgid "More MAC addresses than networks"
 msgstr "MAC 地址数量多于网络数量"
 
-#: instances/views.py:170
+#: instances/views.py:171
 msgid "Enter an IP address, a network such as 192.0.2.0/24, or a MAC address."
 msgstr "请输入 IP 地址、网络（如 192.0.2.0/24）或 MAC 地址。"
 
-#: instances/views.py:176 instances/views.py:210
+#: instances/views.py:177 instances/views.py:211
 msgid "Too many searches are still running; try again shortly."
 msgstr "仍在运行的搜索过多；请稍后再试。"
 
-#: instances/views.py:256
+#: instances/views.py:257
 #, python-format
 msgid "The host %(host)s of '%(name)s' cannot be reached: %(error)s"
 msgstr "无法连接“%(name)s”所在的主机 %(host)s：%(error)s"
 
-#: instances/views.py:262
+#: instances/views.py:263
 #, python-format
 msgid "The host of '%(name)s' cannot be reached right now."
 msgstr "目前无法连接“%(name)s”所在的主机。"
 
-#: instances/views.py:263
+#: instances/views.py:264
 msgid " Jobs on it can be followed under Jobs in the menu."
 msgstr " 其上的任务可在菜单的“任务”中跟踪。"
 
-#: instances/views.py:365
+#: instances/views.py:366
 msgid "There is no other host to migrate to."
 msgstr "没有其他可迁移到的主机。"
 
-#: instances/views.py:367
+#: instances/views.py:368
 msgid "A VM migrates when it is running, paused or shut off."
 msgstr "虚拟机在运行、暂停或关机状态下均可迁移。"
 
-#: instances/views.py:369
+#: instances/views.py:370
 msgid ""
 "A VM with snapshots cannot be migrated: its snapshots stay on this host. "
 "Delete them first."
 msgstr "有快照的虚拟机无法迁移：其快照保留在本主机上。请先删除快照。"
 
-#: instances/views.py:371
+#: instances/views.py:372
 msgid ""
 "A VM with host devices cannot be migrated: the destination may not have them."
 " Remove them first."
 msgstr "有主机设备的虚拟机无法迁移：目标主机可能没有这些设备。请先移除它们。"
 
-#: instances/views.py:633
+#: instances/views.py:634
 msgid "The VM was moved meanwhile; try again."
 msgstr "该虚拟机在此期间已被移动；请重试。"
 
-#: instances/views.py:745
+#: instances/views.py:746
 msgid ""
 "The running VM has no free PCI slot for another disk on this bus: choose the "
 "scsi bus if the VM has a SCSI controller, or shut the VM down and add the "
@@ -5619,7 +5619,7 @@ msgstr ""
 "运行中的虚拟机在此总线上没有可用 PCI 插槽来添加磁盘：如果虚拟机有 SCSI 控制器，请选择 scsi "
 "总线；或关闭虚拟机后再添加磁盘。“磁盘”选项卡上的“添加 PCIe 插槽”可使其从下次启动起获得可用插槽。新卷会保留在其存储池中，可作为现有卷挂载。"
 
-#: instances/views.py:749
+#: instances/views.py:750
 msgid ""
 "The running VM has no free PCI slot for the SCSI controller the disk needs: "
 "shut the VM down and add the disk then; Add PCIe slots on the Disks tab gives"
@@ -5629,262 +5629,272 @@ msgstr ""
 "运行中的虚拟机没有可用 PCI 插槽来添加磁盘所需的 SCSI 控制器：请关闭虚拟机后再添加磁盘。“磁盘”选项卡上的“添加 PCIe "
 "插槽”可使其从下次启动起获得可用插槽。新卷会保留在其存储池中，可作为现有卷挂载。"
 
-#: instances/views.py:767
+#: instances/views.py:768
 #, python-format
 msgid "Invalid disk options: %(options)s"
 msgstr "无效的磁盘选项：%(options)s"
 
-#: instances/views.py:777 instances/views.py:792
+#: instances/views.py:778 instances/views.py:793
 msgid "Templates cannot be started."
 msgstr "模板无法启动。"
 
-#: instances/views.py:888
+#: instances/views.py:889
 #, python-format
 msgid "Disk %(path)s was kept: a disk file that stays needs it"
 msgstr "磁盘 %(path)s 已保留：某个保留的磁盘文件依赖它"
 
-#: instances/views.py:894
+#: instances/views.py:895
 #, python-format
 msgid "The VM is removed, but disk %(path)s was not deleted: %(err)s"
 msgstr "虚拟机已删除，但磁盘 %(path)s 未被删除：%(err)s"
 
-#: instances/views.py:903
+#: instances/views.py:904
 #, python-format
 msgid "Disk %(path)s is used by another VM and was kept"
 msgstr "磁盘 %(path)s 正被另一台虚拟机使用，已保留"
 
-#: instances/views.py:1025
+#: instances/views.py:1026
 #, python-format
 msgid "Set the gstfsd key of %(compute)s first (Computes, edit the host)"
 msgstr "请先设置 %(compute)s 的 gstfsd 密钥（计算节点，编辑该主机）"
 
-#: instances/views.py:1031 instances/views.py:1045 instances/views.py:1054
+#: instances/views.py:1033 instances/views.py:1048 instances/views.py:1057
 #, python-format
 msgid "gstfsd error: %(err)s"
 msgstr "gstfsd 错误：%(err)s"
 
-#: instances/views.py:1055
+#: instances/views.py:1058
 msgid "the reply is not signed with the key"
 msgstr "回复未使用该密钥签名"
 
-#: instances/views.py:1063
+#: instances/views.py:1066
 msgid "Shut the VM down, or start its QEMU guest agent, and try again"
 msgstr "请关闭虚拟机，或启动其 QEMU 客户机代理，然后重试"
 
-#: instances/views.py:1076
+#: instances/views.py:1079
 msgid "The change may still be made when the agent answers again."
 msgstr "当代理再次响应时，此更改仍可能生效。"
 
-#: instances/views.py:1103
+#: instances/views.py:1106
 msgid "Reset root password"
 msgstr "重置 root 密码"
 
-#: instances/views.py:1107
+#: instances/views.py:1110
 msgid "Enter a password"
 msgstr "请输入密码"
 
-#: instances/views.py:1121
+#: instances/views.py:1124
 msgid "Select an SSH public key"
 msgstr "请选择 SSH 公钥"
 
-#: instances/views.py:1143
+#: instances/views.py:1146
 #, python-format
 msgid "Installed new SSH public key %(keyname)s"
 msgstr "已安装新的 SSH 公钥 %(keyname)s"
 
-#: instances/views.py:1163
+#: instances/views.py:1166
 msgid "Enter a whole number of vCPUs"
 msgstr "请输入整数个 vCPU"
 
-#: instances/views.py:1167
+#: instances/views.py:1170
 msgid "Shut off the VM to change its vCPUs"
 msgstr "请关闭虚拟机以更改其 vCPU"
 
-#: instances/views.py:1170
+#: instances/views.py:1173
 msgid "The current vCPUs cannot be more than the maximum"
 msgstr "当前 vCPU 数不能超过最大值"
 
-#: instances/views.py:1177
+#: instances/views.py:1180
 #, python-format
 msgid "%(quota)s: cannot resize the CPU of '%(instance_name)s'."
 msgstr "%(quota)s：无法调整“%(instance_name)s”的 CPU。"
 
-#: instances/views.py:1185
+#: instances/views.py:1188
 #, python-format
 msgid "vCPUs set to %(cur)s (maximum %(max)s)"
 msgstr "vCPU 已设为 %(cur)s（最大 %(max)s）"
 
-#: instances/views.py:1204
+#: instances/views.py:1207
 msgid "Enter a whole number for memory"
 msgstr "请输入整数内存值"
 
-#: instances/views.py:1207
+#: instances/views.py:1210
 msgid "The current memory cannot be more than the maximum"
 msgstr "当前内存不能超过最大值"
 
-#: instances/views.py:1211
+#: instances/views.py:1214
 #, python-format
 msgid "%(quota)s: cannot resize the memory of '%(instance_name)s'."
 msgstr "%(quota)s：无法调整“%(instance_name)s”的内存。"
 
-#: instances/views.py:1217
+#: instances/views.py:1220
 #, python-format
 msgid "Memory set to %(cur)s MiB (maximum %(max)s MiB)"
 msgstr "内存已设为 %(cur)s MiB（最大 %(max)s MiB）"
 
-#: instances/views.py:1237
+#: instances/views.py:1240
 msgid "Enter disk sizes as whole GiB"
 msgstr "请以整数 GiB 输入磁盘大小"
 
-#: instances/views.py:1241
+#: instances/views.py:1244
 #, python-format
 msgid "%(dev)s is %(size)s: a disk cannot shrink"
 msgstr "%(dev)s 为 %(size)s：磁盘不能缩小"
 
-#: instances/views.py:1249
+#: instances/views.py:1252
 msgid "No disks were selected or valid for resizing."
 msgstr "未选择磁盘或没有可调整大小的有效磁盘。"
 
-#: instances/views.py:1258
+#: instances/views.py:1261
 #, python-format
 msgid "%(quota)s: cannot resize the disks of '%(instance_name)s'."
 msgstr "%(quota)s：无法调整“%(instance_name)s”的磁盘。"
 
-#: instances/views.py:1270
+#: instances/views.py:1273
 #, python-format
 msgid "The storage pool of %(dev)s cannot resize its volumes"
 msgstr "%(dev)s 所在的存储池无法调整其卷的大小"
 
-#: instances/views.py:1272
+#: instances/views.py:1275
 #, python-format
 msgid "Disk is resized: %(dev)s"
 msgstr "磁盘已调整大小：%(dev)s"
 
-#: instances/views.py:1366
+#: instances/views.py:1369
 msgid "The VM's machine has no PCIe slots to add"
 msgstr "该虚拟机的机器类型没有可添加的 PCIe 插槽"
 
-#: instances/views.py:1371
+#: instances/views.py:1374
 #, python-format
 msgid "%(count)s PCIe slots added"
 msgstr "已添加 %(count)s 个 PCIe 插槽"
 
-#: instances/views.py:1373
+#: instances/views.py:1376
 #, python-format
 msgid "%(count)s PCIe slots added: the VM gets them at its next start"
 msgstr "已添加 %(count)s 个 PCIe 插槽：虚拟机在下次启动时获得它们"
 
-#: instances/views.py:1504
+#: instances/views.py:1422
+#, python-format
+msgid "%(volume)s is already a disk of this VM"
+msgstr "%(volume)s 已是此虚拟机的磁盘"
+
+#: instances/views.py:1512
 msgid "Volume changes are applied. But it will be activated after shutdown"
 msgstr "卷更改已应用，但将在关机后生效"
 
-#: instances/views.py:1509
+#: instances/views.py:1517
 msgid "Volume is changed successfully."
 msgstr "卷已成功更改。"
 
-#: instances/views.py:1527
+#: instances/views.py:1535
 #, python-format
 msgid "Disk %(dev)s is not a storage volume of this instance"
 msgstr "磁盘 %(dev)s 不是此虚拟机的存储卷"
 
-#: instances/views.py:1534
+#: instances/views.py:1542
 #, python-format
 msgid "Disk %(dev)s has a pending change; delete it once the VM is shut down"
 msgstr "磁盘 %(dev)s 有待生效的更改；请在虚拟机关机后删除它"
 
-#: instances/views.py:1549
+#: instances/views.py:1557
 #, python-format
 msgid "Volume %(vol)s is used by another VM; detach it instead"
 msgstr "卷 %(vol)s 正被另一台虚拟机使用；请改为分离它"
 
-#: instances/views.py:1561
+#: instances/views.py:1569
 #, python-format
 msgid ""
 "The guest has not released disk %(dev)s yet; volume %(vol)s was kept. Delete "
 "it from the storage pool once the VM is shut down."
 msgstr "客户机尚未释放磁盘 %(dev)s；卷 %(vol)s 已保留。请在虚拟机关机后从存储池中删除它。"
 
-#: instances/views.py:1572
+#: instances/views.py:1580
 #, python-format
 msgid "Disk %(dev)s was detached, but its volume was kept: %(err)s"
 msgstr "磁盘 %(dev)s 已分离，但其卷已保留：%(err)s"
 
-#: instances/views.py:1598
+#: instances/views.py:1606
 #, python-format
 msgid "This VM cannot take a CD-ROM on the %(bus)s bus now"
 msgstr "该虚拟机现在无法在 %(bus)s 总线上添加 CD-ROM"
 
-#: instances/views.py:1601
+#: instances/views.py:1609
 msgid "A USB CD-ROM needs an ISO image: libvirt has no empty USB drive"
 msgstr "USB CD-ROM 需要 ISO 镜像：libvirt 不支持空的 USB 驱动器"
 
-#: instances/views.py:1682
+#: instances/views.py:1690
 #, python-format
 msgid "Pool %(pool)s was not read again: %(err)s"
 msgstr "未重新读取存储池 %(pool)s：%(err)s"
 
-#: instances/views.py:1703
+#: instances/views.py:1711
 #, python-format
 msgid "Snapshot was not deleted: %(err)s"
 msgstr "快照未删除：%(err)s"
 
-#: instances/views.py:1818
+#: instances/views.py:1826
 msgid "Add at least one device to the boot order."
 msgstr "请至少向启动顺序中添加一个设备。"
 
-#: instances/views.py:1832
+#: instances/views.py:1840
 msgid "Boot order changed. It applies at the next start."
 msgstr "启动顺序已更改，将在下次启动时生效。"
 
-#: instances/views.py:1834
+#: instances/views.py:1842
 msgid "Boot order changed successfully."
 msgstr "启动顺序已成功更改。"
 
-#: instances/views.py:1854
+#: instances/views.py:1862
 msgid "The XML is empty"
 msgstr "XML 为空"
 
-#: instances/views.py:1858 instances/views.py:2478
+#: instances/views.py:1866 instances/views.py:2490
 #, python-format
 msgid "The XML is not well-formed: %(error)s"
 msgstr "XML 格式不正确：%(error)s"
 
-#: instances/views.py:1860
+#: instances/views.py:1868
 #, python-format
 msgid "The XML must keep the VM's UUID %(uuid)s."
 msgstr "XML 必须保留虚拟机的 UUID %(uuid)s。"
 
-#: instances/views.py:1864
+#: instances/views.py:1872
 msgid ""
 "The definition has changed since the editor was opened. Reload the page to "
 "edit the current one."
 msgstr "自打开编辑器以来定义已被更改。请重新加载页面以编辑当前定义。"
 
-#: instances/views.py:1876
+#: instances/views.py:1884
 msgid "The XML definition was saved."
 msgstr "XML 定义已保存。"
 
-#: instances/views.py:1878
+#: instances/views.py:1886
 msgid "The XML definition was saved; the VM uses it from its next start."
 msgstr "XML 定义已保存；虚拟机从下次启动起使用它。"
 
-#: instances/views.py:1959
+#: instances/views.py:1967
 msgid "Select one network interface to change"
 msgstr "请选择一个要更改的网络接口"
 
-#: instances/views.py:1997
+#: instances/views.py:2005
 msgid "Network Device Config is changed. Please shutdown instance to activate."
 msgstr "网络设备配置已更改。请关闭虚拟机以使其生效。"
 
-#: instances/views.py:1999
+#: instances/views.py:2007
 msgid "Network device changed"
 msgstr "网络设备已更改"
 
-#: instances/views.py:2011
+#: instances/views.py:2019
 msgid "No network selected"
 msgstr "未选择网络"
 
-#: instances/views.py:2031
+#: instances/views.py:2024
+#, python-format
+msgid "The VM already has a network device with MAC %(mac)s"
+msgstr "虚拟机已有 MAC 地址为 %(mac)s 的网络设备"
+
+#: instances/views.py:2043
 msgid ""
 "The running VM has no free PCI slot for another network device: shut it down "
 "and add the device then; Add PCIe slots on the Disks tab gives it free ones "
@@ -5892,137 +5902,137 @@ msgid ""
 msgstr ""
 "运行中的虚拟机没有可用 PCI 插槽来添加网络设备：请关机后再添加设备。“磁盘”选项卡上的“添加 PCIe 插槽”可使其从下次启动起获得可用插槽。"
 
-#: instances/views.py:2072 instances/views.py:2078
+#: instances/views.py:2084 instances/views.py:2090
 msgid "The VM has it"
 msgstr "虚拟机已有此设备"
 
-#: instances/views.py:2109
+#: instances/views.py:2121
 #, python-format
 msgid "The host has no USB device %(device)s"
 msgstr "主机上没有 USB 设备 %(device)s"
 
-#: instances/views.py:2130
+#: instances/views.py:2142
 #, python-format
 msgid "The host has no PCI device %(device)s"
 msgstr "主机上没有 PCI 设备 %(device)s"
 
-#: instances/views.py:2148
+#: instances/views.py:2160
 #, python-format
 msgid ""
 "Removal of PCI device %(address)s requested: the guest has not let it go yet;"
 " it stays in the running VM until it does or the VM stops."
 msgstr "已请求移除 PCI 设备 %(address)s：客户机尚未释放它；在客户机释放或虚拟机停止之前，它仍保留在运行中的虚拟机中。"
 
-#: instances/views.py:2193 instances/views.py:2223
+#: instances/views.py:2205 instances/views.py:2235
 msgid "Select a network interface and a QoS direction"
 msgstr "请选择网络接口和 QoS 方向"
 
-#: instances/views.py:2196 vrtManager/network.py:459
+#: instances/views.py:2208 vrtManager/network.py:459
 msgid "QoS rates must be whole numbers"
 msgstr "QoS 速率必须为整数"
 
-#: instances/views.py:2203 networks/views.py:229
+#: instances/views.py:2215 networks/views.py:229
 #, python-format
 msgid "%(qos_dir)s QoS is set"
 msgstr "%(qos_dir)s QoS 已设置"
 
-#: instances/views.py:2208
+#: instances/views.py:2220
 #, python-format
 msgid ""
 "%(qos_dir)s QoS is set. A running VM gets it after it is powered off and on."
 msgstr "%(qos_dir)s QoS 已设置。运行中的虚拟机需关机再开机后才能生效。"
 
-#: instances/views.py:2230 networks/views.py:255
+#: instances/views.py:2242 networks/views.py:255
 #, python-format
 msgid "%(qos_dir)s QoS is deleted"
 msgstr "%(qos_dir)s QoS 已删除"
 
-#: instances/views.py:2235
+#: instances/views.py:2247
 #, python-format
 msgid ""
 "%(qos_dir)s QoS is deleted. A running VM keeps the old limit until it is "
 "powered off and on."
 msgstr "%(qos_dir)s QoS 已删除。运行中的虚拟机在关机再开机之前保留旧的限制。"
 
-#: instances/views.py:2263
+#: instances/views.py:2275
 msgid "Only one owner is allowed and the one already added"
 msgstr "只允许一个所有者，且已添加"
 
-#: instances/views.py:2265
+#: instances/views.py:2277
 #, python-format
 msgid "%(user)s is already an owner"
 msgstr "%(user)s 已是所有者"
 
-#: instances/views.py:2309
+#: instances/views.py:2321
 #, python-format
 msgid "Console settings were not saved: %(errors)s"
 msgstr "控制台设置未保存：%(errors)s"
 
-#: instances/views.py:2331
+#: instances/views.py:2343
 msgid ""
 "Error setting console password. You should check that your instance have an "
 "graphic device."
 msgstr "设置控制台密码出错。请检查虚拟机是否有图形设备。"
 
-#: instances/views.py:2378
+#: instances/views.py:2390
 msgid "Shut the VM down to change whether it is a template."
 msgstr "请关闭虚拟机以更改其是否为模板。"
 
-#: instances/views.py:2384
+#: instances/views.py:2396
 #, python-format
 msgid "%(quota)s: '%(instance_name)s' stays a template."
 msgstr "%(quota)s：“%(instance_name)s”仍为模板。"
 
-#: instances/views.py:2466
+#: instances/views.py:2478
 msgid "The XML has no name"
 msgstr "XML 中没有名称"
 
-#: instances/views.py:2480 webvirtcloud/middleware.py:79
+#: instances/views.py:2492 webvirtcloud/middleware.py:79
 #, python-format
 msgid "libvirt Error - %(exception)s"
 msgstr "libvirt 错误 - %(exception)s"
 
-#: instances/views.py:2487
+#: instances/views.py:2499
 msgid "An empty disk of the size you set"
 msgstr "按设定大小创建的空磁盘"
 
-#: instances/views.py:2488
+#: instances/views.py:2500
 msgid "Volumes already in a pool"
 msgstr "存储池中已有的卷"
 
-#: instances/views.py:2489
+#: instances/views.py:2501
 msgid "A copy of a template volume"
 msgstr "模板卷的副本"
 
-#: instances/views.py:2578
+#: instances/views.py:2590
 msgid "You haven't defined any storage pools"
 msgstr "您尚未定义任何存储池"
 
-#: instances/views.py:2580
+#: instances/views.py:2592
 msgid "You haven't defined any network pools"
 msgstr "您尚未定义任何网络池"
 
-#: instances/views.py:2643
+#: instances/views.py:2655
 msgid "Flavor Created"
 msgstr "规格已创建"
 
-#: instances/views.py:2651
+#: instances/views.py:2663
 msgid "Create Flavor"
 msgstr "创建规格"
 
-#: instances/views.py:2666
+#: instances/views.py:2678
 msgid "Flavor Updated"
 msgstr "规格已更新"
 
-#: instances/views.py:2672
+#: instances/views.py:2684
 msgid "Update Flavor"
 msgstr "更新规格"
 
-#: instances/views.py:2684
+#: instances/views.py:2696
 msgid "Flavor Deleted"
 msgstr "规格已删除"
 
-#: instances/views.py:2690
+#: instances/views.py:2702
 msgid "Only the size template goes; VMs made from it keep their size."
 msgstr "仅删除此规格；由它创建的虚拟机保持其大小。"
 
@@ -9316,10 +9326,10 @@ msgstr "存储池 %(names)s"
 msgid "Secret %(uuid)s is used by %(named)s; remove it from them first"
 msgstr "机密 %(uuid)s 正被 %(named)s 使用；请先从中移除它"
 
-#: webvirtcloud/settings.py:326
+#: webvirtcloud/settings.py:327
 msgid "Localhost"
 msgstr "本机"
 
-#: webvirtcloud/settings.py:327
+#: webvirtcloud/settings.py:328
 msgid "All interfaces"
 msgstr "所有接口"