It seems like your network card is not recognised. Perhaps it is
disabled in the bios? Sometimes it conflicts with the "Wake up on lan"
setting from the bios.
Try this command: dmesg | grep eth0
Here's my output, for comparison:
[ 3.848018] eth0: RealTek RTL8139 at 0xc800, 00:1e:8b:6c:21:b4, IRQ
16
[ 3.848021] eth0: Identified 8139 chip type 'RTL-8100B/8139D'
[ 150.869724] eth0: link down
[ 394.114597] ADDRCONF(NETDEV_UP): eth0: link is not ready
So my card is a realtek and it has an IRQ 16, which is the bios address.
The lan interface is usually eth0, but you can try eth1 or eth2, just in
case.
It says link down, but that's normal because I'm on wireless.
I find it hard to believe your network card isn't supported, since you
seem to have gotten your laptop from a linux-aware vendor.
Here's my ifconfig output, for comparison.
$sudo ifconfig
eth0 Link encap:Ethernet HWaddr 00:1e:8b:6c:21:b4
UP 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:16 Base address:0xc800
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:104 errors:0 dropped:0 overruns:0 frame:0
TX packets:104 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:8048 (8.0 KB) TX bytes:8048 (8.0 KB)
wlan0 Link encap:Ethernet HWaddr 00:24:f4:9c:32:bc
inet addr:192.168.1.2 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::216:44ff:fe7d:52ad/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:3288 errors:0 dropped:0 overruns:0 frame:0
TX packets:2728 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:3377217 (3.3 MB) TX bytes:540083 (540.0 KB)
wmaster0 Link encap:UNSPEC HWaddr
00-16-44-7D-52-AD-32-61-00-00-00-00-00-00-00-00
UP BROADCAST RUNNING 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)
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