**已关闭。**此问题为not about programming or software development。目前不接受答案。

此问题似乎与a specific programming problem, a software algorithm, or software tools primarily used by programmers无关。如果您认为此问题与another Stack Exchange site相关，您可以留下评论，说明在何处可以找到此问题的答案。
3天前关闭。
Improve this question
我最近通过ubuntu maas配置了两台服务器。一开始他们配置了一个bond0接口，包含eno49和eno49d1。由于硬件的变化，我想删除并重新配置系统，但删除过程后，系统无法通过cloud init配置，因为它们似乎有相同的mac地址。有什么方法可以恢复默认的mac地址吗？
此致

Cloud-init v. 22.2-0ubuntu1~20.04.3 running 'init-local' at Tue, 15 Nov 2022 19:48:34 +0000. Up 29.19 seconds.
2022-11-15 19:48:34,455 - util.py[WARNING]: failed stage init-local
failed run of stage init-local
------------------------------------------------------------
Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/cloudinit/cmd/main.py", line 362, in main_init
    init.fetch(existing=existing)
  File "/usr/lib/python3/dist-packages/cloudinit/stages.py", line 430, in fetch
    return self._get_data_source(existing=existing)
  File "/usr/lib/python3/dist-packages/cloudinit/stages.py", line 321, in _get_data_source
    (ds, dsname) = sources.find_source(
  File "/usr/lib/python3/dist-packages/cloudinit/sources/__init__.py", line 935, in find_source
    raise DataSourceNotFoundException(msg)
cloudinit.sources.DataSourceNotFoundException: Did not find any data source, searched classes: ()
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/cloudinit/cmd/main.py", line 740, in status_wrapper
    ret = functor(name, args)
  File "/usr/lib/python3/dist-packages/cloudinit/cmd/main.py", line 383, in main_init
    init.apply_network_config(bring_up=bring_up_interfaces)
  File "/usr/lib/python3/dist-packages/cloudinit/stages.py", line 921, in apply_network_config
    self.distro.networking.wait_for_physdevs(netcfg)
  File "/usr/lib/python3/dist-packages/cloudinit/distros/networking.py", line 148, in wait_for_physdevs
    present_macs = self.get_interfaces_by_mac().keys()
  File "/usr/lib/python3/dist-packages/cloudinit/distros/networking.py", line 75, in get_interfaces_by_mac
    return net.get_interfaces_by_mac(
  File "/usr/lib/python3/dist-packages/cloudinit/net/__init__.py", line 926, in get_interfaces_by_mac
    return get_interfaces_by_mac_on_linux(
  File "/usr/lib/python3/dist-packages/cloudinit/net/__init__.py", line 1000, in get_interfaces_by_mac_on_linux
    raise RuntimeError(
RuntimeError: duplicate mac found! both 'eno49d1' and 'eno49' have mac '04:09:73:d4:4f:f0'