I've just upgraded an x86 box from 19.07 to 21.02, keeping/migrating the previous configuration, and everything seems to be working ok so far. However, I'm not seeing the behaviour described here in the release notes:
There have been several changes to the network configuration syntax in
- in config interface, option ifname has been renamed to device (since
it refers to a device section)
- in config device of type bridge, ifname has been renamed to ports
- for new installs, the generated configuration now creates separate
sections for layer 2 (config device) and layer 3 (config interface)
The old syntax is still supported to facilitate transition, and there is
no automated migration when upgrading.
However, the LuCI web interface detects old-style configuration and will
propose to migrate it to the new syntax. This is necessary to be able to
edit network configuration through LuCI.
I went into LuCI and opened the Network -> Interfaces page but there was no offer to migrate the config, and it's still using the old format. I'm now worried about making any changes to this config in LuCI in case it messes things up.
How do I trigger the behaviour highlighted in bold above?