Disable remove extended partition for efi OS

src/components/storage/ReclaimSpaceModal.jsx

@@ -250,14 +250,10 @@ const getDeviceRow = (disk, devices, level = 0, unappliedActions, setUnappliedAc
         idPrefix + "-device-level-" + level,
     ];
 
-    if (!device.children.v.length) {
-        const parentDevice = device.parents.v[0] ? devices[device.parents.v[0]] : undefined;
-        const siblings = parentDevice?.children.v;
-        const isLastChild = !siblings || siblings.findIndex((child) => child === disk) === siblings.length - 1;
+    const isLastChild = device.attrs?.v.isleaf === "True";
 
-        if (isLastChild) {
-            classNames.push(idPrefix + "-device-leaf");
-        }
+    if (isLastChild) {
+        classNames.push(idPrefix + "-device-leaf");
     }
 
     let deviceType = getDeviceTypeInfo(device);
@@ -359,14 +355,16 @@ const DeviceActionDelete = ({ device, hasBeenRemoved, newDeviceSize, onAction })
 
     // Disable the remove action for disk devices without partitions
     const isRemoveDisabled = device.type.v === "disk" && device.children.v.length === 0;
+    // Disable the remove action for partitions without children witch is not leaf node
+    const isExtendedPartition = device.attrs?.v.isleaf === "False" && device.children.v.length === 0;
 
     // Do not show 'delete' text for disks directly, we show 'delete' text for the contained partitions
     const deleteText = device.type.v !== "disk" ? <DeleteText /> : "";
     const deleteButton = (
         <Button
           aria-label={_("delete")}
           icon={<TrashIcon />}
-          isDisabled={isRemoveDisabled}
+          isDisabled={isRemoveDisabled || isExtendedPartition}
           onClick={onRemove}
           variant="plain"
         />