再起動後に CIFS 共有が "cifs_mount failed w/return code = -2" でマウントされない

Issue

• 再起動後、CIFS 共有が自動的にマウントされません。

Apr 22 14:07:33  systemd: Mounting /interface/sheets...
Apr 22 14:07:34  mount: mount error(2): No such file or directory
Apr 22 14:07:34  mount: Refer to the mount.cifs(8) manual page (e.g. man mount.cifs)
Apr 22 14:07:34  kernel: CIFS VFS: cifs_mount failed w/return code = -2
Apr 22 14:07:34  systemd: interface-sheets.mount mount process exited, code=exited status=32
Apr 22 14:07:34  systemd: Failed to mount /interface/sheets.
Apr 22 14:07:34  systemd: Dependency failed for Remote File Systems.
Apr 22 14:07:34  systemd: Job remote-fs.target/start failed with result 'dependency'.
Apr 22 14:07:34  systemd: Unit interface-sheets.mount entered failed state.