Missed eth0 interface after Ubuntu and Guest Addition upgrades

[redsoft]

Changing adapter to VirtIO - doesn't help. But now I accidently noticed, when entering to Ubuntu Network Settings there is strange Message box appearing "The system network services are not compatible with this version" ! See the attached screenshot.
My /etc/network/interfaces contains only:

Code: Select all

# interfaces(5) file used by ifup(8) and ifdown(8)
auto lo
iface lo inet loopback

[Perryg]

Yeah I just installed a new version of Ubuntu and am working on it, but if anything is not configured perfectly you will see that error.

[redsoft]

Looking forward to the fix/update! Very hope my VM will live.
Thanks in advance.

[Perryg]

I honestly don't know what to tell you. I have investigate this as far as I can go from afar and all indications are the guest has an network stack corruption. Let's look at a few things.

post the following: cat /var/log/syslog | grep net
Look at dmesg and see if you find any errors concerning the network or adapter.

If you have a router in your LAN try switching to bridged and see if it will pick that up
Or
You can add the following to the the end of the /etc/network/interfaces file and see if that will force it to work.

• auto eth0 dhcp

Other than that you will probably need to ask the OS forums about how to fix this.

[redsoft]

I will do what you asking today at evening;
meanwhile can you please tell me: can I now install another VM Ubuntu 14.04 + all updates till today? Will it work?

[Perryg]

You should be able to install a new version of Ubuntu and if all goes well I can tell you how to retrieve your data if that is what you are wanting to do.

[redsoft]

Hi,
attached is syslog|grep net + dmesg content. Indeed, dmesg contains strange error line that is beginning of next NetworkManager errors:

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[    8.658206] hid-generic 0003:80EE:0021.0001: input,hidraw0: USB HID v1.10 Mouse [VirtualBox USB Tablet] on usb-0000:00:06.0-1/input0
[b]
[    8.669266] traps: NetworkManager[709] general protection ip:469fee sp:7ffe6ddc8ad0 error:0 in NetworkManager[400000+10d000]
[/b]
...

Why?
Concerning migrating to new clean VM - I prefer 1st to repair this VM. Because of there is a lot of work to reinstall and reconfigure my stuff.
Thanks in advance.

[Perryg]

Looks like a bug in the OS. A search for "general protection ip:469fee in NetworkManager" brings up the following.


https://www.google.com/search?q=general ... orkManager

One suggestion ( as a work around ) was to run the following in a terminal

• sudo ifconfig eth0 up
  sudo dhclient

You have come to a place where the help needs to come from the Ubuntu folks I am afraid.