Comment 98 for bug 254668

Wrong turn...

The boot delay came back, so I changed /e/n/interfaces back to auto eht0.

That is, the error message on /etc/init.d/networking stop or restart is still "Ignoring unknown interface eth0=eth0"

Switching off the router circumvents the problem, but it seems, just because of a broken process: I once saw an error message like "signal xy caught", when I switched off the router and (which happens occasionally at that point) the Ubuntu "shutdown progress bar" disappears to show the text output.

Any ideas?