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At every boot i got this message:
"booting system without full network configuration".
This is my /etc/network/interfaces file:

auto eth0
iface eth0 inet manual
    up ifconfig $IFACE up
    up ip link set $IFACE promisc on
    down ip link set $IFACE promisc off
    down ifconfig $IFACE down

auto eth0:1
iface eth0:1 inet static

auto br-ex
iface br-ex inet static

Where br-ex is a bridge connected to the internet and eth0:1 is a non-existent network needed for openstack!
How can i solve the slow boot problem caused by the network not being configured? (but when booted it is all ok)

share|improve this question
possible duplicate of Booting system without full network configuration –  Mitch Jul 30 '13 at 14:02
it is not a duplicate because i don't want to restore the original file! I want to keep mine! –  Paolo Jul 30 '13 at 15:52

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