nothing else! I left resolv.conf untouched.
This Bug is the reason, why I postponed the upgrade of my machines until Ubuntu upgrade will work in a more or less proper way. I testet it on three of my machines, and all shows the same behavior. If I reinstall network-manager (instead of useing ifupdown) to avoid network response delays, the following happens to all machines:
1. After reboot: bootmessage says:" * starting cups printing/server"
2. Perhaps 20 seconds nothing happens
3. After that bootmessage says: "Waiting for network configuration ...."
4. Perhaps 30 seconds nothing happens
5. After that bootmessage says: "Waiting up to 60 more seconds for network configuration ..."
6. Perhaps 60 seconds nothing happens
7. After that bootmessage says: "Booting system without full network configuration"
8. System boots up to login manager
But network is still not configured, one has to restart network-manager manually to get the system working.
In summary: If I install a Ubuntu 12.04 system from scratch, I can have a working system, but I have to use network-manager and IP numbers in yp.conf instead of machine names. If I want to upgrade a Ubuntu 10.04LTS system, I get a lot of trouble.
never ending story:
To #25:
I configerd dns server in /etc/network/ interfaces by adding the following lines manually:
dns-nameservers server1 server2 server3
dns-search domain.name
nothing else! I left resolv.conf untouched.
This Bug is the reason, why I postponed the upgrade of my machines until Ubuntu upgrade will work in a more or less proper way. I testet it on three of my machines, and all shows the same behavior. If I reinstall network-manager (instead of useing ifupdown) to avoid network response delays, the following happens to all machines:
1. After reboot: bootmessage says:" * starting cups printing/server"
2. Perhaps 20 seconds nothing happens
3. After that bootmessage says: "Waiting for network configuration ...."
4. Perhaps 30 seconds nothing happens
5. After that bootmessage says: "Waiting up to 60 more seconds for network configuration ..."
6. Perhaps 60 seconds nothing happens
7. After that bootmessage says: "Booting system without full network configuration"
8. System boots up to login manager
But network is still not configured, one has to restart network-manager manually to get the system working.
In summary: If I install a Ubuntu 12.04 system from scratch, I can have a working system, but I have to use network-manager and IP numbers in yp.conf instead of machine names. If I want to upgrade a Ubuntu 10.04LTS system, I get a lot of trouble.
Alex