diff --git a/dist/adastra-vtl-installer-1.0.0.tar.gz b/dist/adastra-vtl-installer-1.0.0.tar.gz
index 6de9161..fcbeead 100644
Binary files a/dist/adastra-vtl-installer-1.0.0.tar.gz and b/dist/adastra-vtl-installer-1.0.0.tar.gz differ
diff --git a/dist/adastra-vtl-installer/VERSION b/dist/adastra-vtl-installer/VERSION
index 0c041be..884a96b 100644
--- a/dist/adastra-vtl-installer/VERSION
+++ b/dist/adastra-vtl-installer/VERSION
@@ -1,4 +1,4 @@
 Adastra VTL Installer
 Version: 1.0.0
-Build Date: 2025-12-09 18:33:03
+Build Date: 2025-12-10 12:05:52
 Build Host: vtl-dev
diff --git a/dist/adastra-vtl-installer/web-ui/api.php b/dist/adastra-vtl-installer/web-ui/api.php
index f15763f..45dd8e8 100644
--- a/dist/adastra-vtl-installer/web-ui/api.php
+++ b/dist/adastra-vtl-installer/web-ui/api.php
@@ -325,11 +325,18 @@ function addLun($params) {
         return;
     }
 
+    // Determine backing store type
+    $bstypeParam = '';
+    if (strpos($device, '/dev/sg') === 0) {
+        $bstypeParam = '--bstype sg'; // Use sg (passthrough) for generic scsi devices
+    }
+
     $command = sprintf(
-        'sudo tgtadm --lld iscsi --mode logicalunit --op new --tid %d --lun %d --backing-store %s 2>&1',
+        'sudo /usr/sbin/tgtadm --lld iscsi --mode logicalunit --op new --tid %d --lun %d --backing-store %s %s 2>&1',
         $tid,
         $lun,
-        escapeshellarg($device)
+        escapeshellarg($device),
+        $bstypeParam
     );
 
     $output = [];
diff --git a/web-ui/api.php b/web-ui/api.php
index f15763f..45dd8e8 100644
--- a/web-ui/api.php
+++ b/web-ui/api.php
@@ -325,11 +325,18 @@ function addLun($params) {
         return;
     }
 
+    // Determine backing store type
+    $bstypeParam = '';
+    if (strpos($device, '/dev/sg') === 0) {
+        $bstypeParam = '--bstype sg'; // Use sg (passthrough) for generic scsi devices
+    }
+
     $command = sprintf(
-        'sudo tgtadm --lld iscsi --mode logicalunit --op new --tid %d --lun %d --backing-store %s 2>&1',
+        'sudo /usr/sbin/tgtadm --lld iscsi --mode logicalunit --op new --tid %d --lun %d --backing-store %s %s 2>&1',
         $tid,
         $lun,
-        escapeshellarg($device)
+        escapeshellarg($device),
+        $bstypeParam
     );
 
     $output = [];