The NIC works fine both in the Mac OS and while the Ubuntu installer was running. Now that the machine is booted into Ubuntu 14.04 (64 bit) I can get no address and cannot communicate across the wire.
I know I am using the forcedeth driver.
(Sidenote, I am able to connect if I use a USB --> Ethernet dongle. The built-in NIC the system keeps trying to connect and I can use eth0 up and down all I want but it will not connect.)
Here is some possibly related information for your edification or entertainment:
Code:
$ lspci -nnk | grep -iA2 net
00:0a.0 Ethernet controller [0200]: NVIDIA Corporation MCP79 Ethernet [10de:0ab0] (rev b1)
Subsystem: NVIDIA Corporation Apple iMac 9,1 [10de:cb79]
Kernel driver in use: forcedeth
--
03:00.0 Network controller [0280]: Broadcom Corporation BCM4322 802.11a/b/g/n Wireless LAN Controller [14e4:432b] (rev 01)
Subsystem: Apple Inc. AirPort Extreme [106b:008d]
Kernel driver in use: wl
$ cat /etc/network/interfaces
# interfaces(5) file used by ifup(8) and ifdown(8)
auto lo
iface lo inet loopback
$ cat /etc/resolv.conf
# Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8)
# DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN
$ ifconfig -a
eth0 Link encap:Ethernet HWaddr 00:25:00:da:bc:14
inet6 addr: fe80::225:ff:feda:bc14/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:619 errors:0 dropped:0 overruns:0 frame:0
TX packets:75 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:103735 (103.7 KB) TX bytes:13853 (13.8 KB)
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:65536 Metric:1
RX packets:62 errors:0 dropped:0 overruns:0 frame:0
TX packets:62 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:4648 (4.6 KB) TX bytes:4648 (4.6 KB)
wlan0 Link encap:Ethernet HWaddr 00:25:00:40:2b:d4
BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
Interrupt:19
$ uname -a
Linux [machine name] 3.13.0-24-generic #46-Ubuntu SMP Thu Apr 10 19:11:08 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux
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