I have a clean install of Xenial on a VMware system, and the ethernet device is not being found. (Since I cannot ssh into the box, I cannot cut-and-paste output into this window, so please bear with me if I elide some of the command output).
% ifup eth0
Unknown interface eth0
% ifconfig eth0 up
eth0: ERROR while getting interface flags: No such device
% sudo lshw -C network
*-network DISABLED
description: Ethernet interface
product: 82545EM Gigabit Ethernet Controller (Copper)
vendor: Intel Corporation
physical id: 0
bus info: pci@0000:02:00.0
logical name: ens32
version: 01
serial: 00:50:56:a5:1e:b5
size: 1Gbit/s
capacity: 1Gbit/s
width: 64 bits
clock: 66MHz
capabilities: pm pcix ... [many capabilities]
configuration: autonegotiation=on broadcast=yes driver=e1000 driverversion=7.3.21-k8-NAPI ... [more less-relevant config]
resources: irq:18 memory:d1020000-d103ffff memory:d1000000-d100ffff ioport:2000(size=64) memory:d1010000-d101ffff
% lspci -nnk | grep -i -A2 net
02:00.0 Ethernet controller [0200]: Intel Corporation 82545EM Gigabit Ethernet Controller (Copper) [8086:100f] (rev 01)
Subsystem: VMware PRO/1000 MT Single Port Adapter [15ad:0750]
Kernel driver in use: e1000
But nothing is using the e1000 driver:
% lsmod | grep e1000
e1000 135168 0
And the driver is not blacklisted:
% grep e1000 /etc/modprobe.d/*
%
I'm at a loss. If anyone could lend me a clue, it would be much appreciated.