Hello Mao, With a laptop keyboard (not a phone) this time: Your network setup should show em1 and not eth0 .. (might not be related). Can you run : sudo biosdevname -i eth1 And rerun the install package to confirm ?? My Box seems totally dead now (node0) so difficult to confirm On 14/06/2015 12:54, Zhanglei Mao wrote: > Nicolas, > > I agree. It should be caused by the problem of my network. Here is output > of ifconfig and brctl. The eth1 is my usb-lan-card port, eth0 is system > board lan-card port. I configured eth1 with 172.27.252.8 and was able to > reach internet via gateway of 172.27.252.1 before running #apt-get install > orange-box. > > ubuntu@OrangeBox8:~$ ifconfig > br0 Link encap:Ethernet HWaddr ec:a8:6b:fe:18:22 > inet addr:172.27.8.1 Bcast:172.27.11.255 Mask:255.255.252.0 > inet6 addr: fe80::eea8:6bff:fefe:1822/64 Scope:Link > UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 > RX packets:0 errors:0 dropped:0 overruns:0 frame:0 > TX packets:54 errors:0 dropped:0 overruns:0 carrier:0 > collisions:0 txqueuelen:0 > RX bytes:0 (0.0 B) TX bytes:7671 (7.6 KB) > > eth0 Link encap:Ethernet HWaddr ec:a8:6b:fe:18:22 > UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 > RX packets:0 errors:0 dropped:0 overruns:0 frame:0 > TX packets:56 errors:0 dropped:0 overruns:0 carrier:0 > collisions:0 txqueuelen:1000 > RX bytes:0 (0.0 B) TX bytes:8015 (8.0 KB) > Interrupt:20 Memory:f7d00000-f7d20000 > > eth1 Link encap:Ethernet HWaddr 00:24:9b:0e:1e:ad > inet addr:172.27.252.8 Bcast:172.27.255.255 Mask:255.255.252.0 > inet6 addr: fe80::224:9bff:fe0e:1ead/64 Scope:Link > UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 > RX packets:9734872 errors:0 dropped:0 overruns:0 frame:0 > TX packets:5699043 errors:0 dropped:0 overruns:0 carrier:0 > collisions:0 txqueuelen:1000 > RX bytes:14599384523 (14.5 GB) TX bytes:443971610 (443.9 MB) > > 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:107516 errors:0 dropped:0 overruns:0 frame:0 > TX packets:107516 errors:0 dropped:0 overruns:0 carrier:0 > collisions:0 txqueuelen:0 > RX bytes:27072199 (27.0 MB) TX bytes:27072199 (27.0 MB) > > virbr0 Link encap:Ethernet HWaddr da:cf:d4:c0:b0:b7 > inet addr:192.168.122.1 Bcast:192.168.122.255 Mask:255.255.255.0 > 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:0 > RX bytes:0 (0.0 B) TX bytes:0 (0.0 B) > > ubuntu@OrangeBox8:~$ > > ubuntu@OrangeBox8:~$ brctl show > bridge name bridge id STP enabled interfaces > br0 8000.eca86bfe1822 no eth0 > virbr0 8000.000000000000 yes > > thanks, > Mao > > On Sun, Jun 14, 2015 at 5:15 PM, Nicolas Thomas < >