filesystem: pass _netdev option for mounts on remote storage

Signed-off-by: Olivier Gayot <olivier.gayot@canonical.com>

subiquity/common/filesystem/manipulator.py

@@ -42,7 +42,9 @@ class FilesystemManipulator:
     def create_mount(self, fs, spec):
         if spec.get("mount") is None:
             return
-        mount = self.model.add_mount(fs, spec["mount"])
+        mount = self.model.add_mount(
+            fs, spec["mount"], on_remote_storage=spec.get("on-remote-storage", False)
+        )
         if self.model.needs_bootloader_partition():
             vol = fs.volume
             if vol.type == "partition" and boot.can_be_boot_device(vol.device):
@@ -240,6 +242,9 @@ def can_resize_partition(self, partition):
     def partition_disk_handler(self, disk, spec, *, partition=None, gap=None):
         log.debug("partition_disk_handler: %s %s %s %s", disk, spec, partition, gap)
 
+        if disk.on_remote_storage():
+            spec["on-remote-storage"] = True
+
         if partition is not None:
             if "size" in spec and spec["size"] != partition.size:
                 trailing, gap_size = gaps.movable_trailing_partitions_and_gap_size(
@@ -294,6 +299,9 @@ def logical_volume_handler(self, vg, spec, *, partition, gap):
 
         log.debug("logical_volume_handler: %s %s %s", vg, lv, spec)
 
+        if vg.on_remote_storage():
+            spec["on-remote-storage"] = True
+
         if lv is not None:
             if "name" in spec:
                 lv.name = spec["name"]

subiquity/models/filesystem.py

@@ -2166,10 +2166,13 @@ def remove_filesystem(self, fs):
             raise Exception("can only remove unmounted filesystem")
         self._remove(fs)
 
-    def add_mount(self, fs, path):
+    def add_mount(self, fs, path, *, on_remote_storage=False):
         if fs._mount is not None:
             raise Exception(f"{fs} is already mounted")
-        m = Mount(m=self, device=fs, path=path)
+        options = None
+        if on_remote_storage:
+            options = "defaults,_netdev"
+        m = Mount(m=self, device=fs, path=path, options=options)
         self._actions.append(m)
         return m