Got an error: Unknown option "DDB_CTF"

Chris Brennan xaero at
Fri Dec 3 02:03:39 UTC 2010

> Hi Chris,
> Thanks for your kind help. Now I am running FreeBSD on Virtualbox as a
> guest OS on Ubuntu. But I got some other problems. I have searched on the
> Internet but could not find a solution work for me.
> Now the guest OS does have network access. When using ifconfig, the virtual
> ethernet card le0 (when using PCI II) or pcn0 (when using PCnet FAST III)
> has no IP address. I have configured ifconfig_le0/pcn0="DHCP" in
> /etc/rc.conf. But it still has no network access. In the virtualbox, I
> choose the networking mode "Bridged" or "NAT", they don't work, either. I
> found in the virtualbox the name of this virtual network interface is eth0.
> But when i use ifconfig, there is no eth0 in this operating system. I don't
> know whether this is the reason.
> Hope you could give me some possible ideas on solutions. I will post a new
> email on this problem, too.
> Thank you very much.
> Best,
> W.W.

Greetings Weihang,

I've had a simmilar issue, infact. Having one now in my VM that will be
fbsd9+zfs (testing stuff for my environment). The only way I can get proper
access to the outside world is to allow VMWare or VBox to install the
Bridgeing Adapter. In the VM Software, choose the bridging device and then
choose any network device the VM offers you (in vBox I have 2 PCINET devices
and 3 others, the choice doesn't matter really). When I assigned a static IP
to the VM (in my case but it doesn't work (be sure yo set the
default route, 'route add gateway <IP>). The only way I had it working was
to let DHCP get an IP at the command line w/ 'dhclient -q <DEVICE_NAME>'.
Anyway, hope that helps a little.

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