[Bug 37210] Re: Network unavailable on boot

[Steph]

Hi,
sorry for the long post...

Well, I have done a fresh install of Flight5:

1. at startup, the network is unavailable:
steph at ubuntu:~$ ifconfig
eth0      Link encap:Ethernet  HWaddr 00:30:1B:B1:54:79
          inet6 addr: fe80::230:1bff:feb1:5479/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:138 errors:0 dropped:0 overruns:0 frame:0
          TX packets:6 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:19961 (19.4 KiB)  TX bytes:492 (492.0 b)
          Interrupt:201

lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:3 errors:0 dropped:0 overruns:0 frame:0
          TX packets:3 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:172 (172.0 b)  TX bytes:172 (172.0 b)

steph at ubuntu:~$ route
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface


2. I use System Settings > Network Settings > Administrator Mode

3. The eth0 interface is shown as Disabled, and there is no default gateway

4. If I click "Enable interface", it stays disabled (in fact, it is "Enabled" about 0.1 seconds, and then "Disabled" again ; but the "Enable interface" button is now disactivated and the "Disable interface" is acivated, unless I click again on the eth0 line)

5. In the route tab, I enter the default gateway 192.168.1.1, and then click apply.

6. In the Network interfaces tab, I click on "Enable interface" and "Apply" (by the way, the "Reloading Network" window is hidden in the background). The interface is now enabled, and I can browse the internet.

7. I reboot, and then the network is unavailable:
steph at ubuntu:~$ ifconfig eth0
eth0      Link encap:Ethernet  HWaddr 00:30:1B:B1:54:79
          inet6 addr: fe80::230:1bff:feb1:5479/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:36 errors:0 dropped:0 overruns:0 frame:0
          TX packets:6 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:5531 (5.4 KiB)  TX bytes:492 (492.0 b)
          Interrupt:201

steph at ubuntu:~$ route
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface

8. I check in System Settings > Network Settings, and the default gateway field is blank. If I do as in steps 5 & 6, it is ok.

9. I reboot. The network is unavailable. I enable it by typing:
steph at ubuntu:~$ sudo ifconfig eth0 192.168.1.2
steph at ubuntu:~$ sudo route add default gw 192.168.1.1

10. If I look in System Settings > Network Settings, everything is ok.

11. I reboot, the network is unavailable.

12. After an "apt-get dist-upgrade" and a reboot, the network is working!

13. But after the next reboot, it does exactly as before. But now, after having set the default gateway in System Settings, if I click on "Enable  interface", I have the following message : "Could not change device state - KDE Control Module     There was an error changing the device's state. You will have to do it manually".

Hope this helps!
-- 
Network unavailable on boot
https://launchpad.net/malone/bugs/37210