Upgrading from ubuntu 11.10 to 12.04LTS

Same issue. In system settings: clicking on Network raise a popup with: The system network services are not compatible with this version…

No network at all

cat /etc/interfaces
auto lo
iface lo inet loopback


update 1 hour later

Problem solved.
Obviously the upgrade process crashed somewhere, I clicked the “Updates Available…” menu item from the top right computer menu and ran a partial upgrade which finished successfully the 12.04 install and restarted the network.
I guess the X server failed during the night waiting for me to click a dialog box. This morning the screen was dark and the pc was running, but with no answer from the keyboard I thought he hanged at the restart stage… but it was at the config stage somewhere.

Everything back to normal. Resuming normal activities.

end of transmission

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