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How to auto start network-manager?

I installed ubuntu mini iso and ubuntu-gnome-desktop (without the install recommendations). So, I have the system working fine, except that the network manager do not automatically start. I even tried adding it to the gnome-session-properties (startup applications), but no luck.

I am using the following command to manually start it through terminal: sudo service network-manager start

I also get the message while booting saying that 'waiting for netwrok configuration' and then 'booting without full network configuration'.

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In my case, I had a left over entry for eth0 in /etc/network/interfaces which was configured to use DHCP, but since there was no ethernet plugged into eth0 DHCP could never succeed.

Check /etc/network/interfaces, comment out everything other than:

auto lo iface lo inet loopback

Then reboot and hopefully network-manager will start as expected.

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1)In /etc/ there should be some rc files or an rc.d, search around in them and try to figure out which services (Daemons) are starting up on boot.

2)Try the following: I deleted all pid file in /var/run and all subfolders especially /var/run/dbus I moved all data from /var/run to /run then deleted /var/run folder. I made a symlink /run to /var/run.

3) Follow this article and look at #24. Although the version they are talking of is different from yours, the suggestion might help.

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