I haven't done the upgrade yet, but I note the following, though I'm not quite
sure what it means:



In Ubuntu 7.10, network-manager only manages interfaces that are marked for
roaming. Thus, all interfaces that were previously managed by network-manager
will be set to roaming mode during upgrade. Technically, this takes any
interface stanzas using the dhcp method with no options and that are marked
auto, and removes them from /etc/network/interfaces. If you rely on your
interfaces being started by ifupdown when the system starts up, you need to
re-enable them in /etc/network/interfaces manually, or disable roaming in System
-> Administration -> Network.

My computers get an IP address by dhcp, so I want to take precautions to be sure
that this problem does not occur with me. If it does, you can't google to find a
solution!