Hi I have already buy Beaglebone black from Embest. I connect a 3G usb 
modem but eth1 activates.

I'm using 
BBB-eMMC-flasher-ubuntu-16.04.3-console-armhf-2018-02-09-2gb.img.xz from 
https://elinux.org/BeagleBoardUbuntu

What is wrong on drivers?

Regards,
Amir




root@ubuntu#uname -a
Linux ubuntu 4.14.17-ti-r32 #1 SMP Tue Feb 6 23:04:02 UTC 2018 armv7l 
armv7l armv7l GNU/Linux


root@ubuntu:~# cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=16.04
DISTRIB_CODENAME=xenial
DISTRIB_DESCRIPTION="Ubuntu 16.04.3 LTS"


root@ubuntu:~# lsmod
Module                  Size  Used by
sr_mod                 24576  0
cdrom                  65536  1 sr_mod
sg                     36864  0
uas                    24576  0
evdev                  24576  1
uio_pdrv_genirq        16384  0
uio                    20480  1 uio_pdrv_genirq
usb_f_acm              16384  2
u_serial               20480  3 usb_f_acm
usb_f_ecm              20480  2
usb_f_rndis            32768  2
u_ether                24576  2 usb_f_ecm,usb_f_rndis
libcomposite           61440  14 usb_f_ecm,usb_f_acm,usb_f_rndis




root@ubuntu:~# dmesg
[  697.072407] usb 1-1: new high-speed USB device number 3 using musb-hdrc
[  697.221186] usb 1-1: New USB device found, idVendor=12d1, idProduct=1f01
[  697.221203] usb 1-1: New USB device strings: Mfr=1, Product=2, 
SerialNumber=3
[  697.221211] usb 1-1: Product: HUAWEI Mobile
[  697.221218] usb 1-1: Manufacturer: HUAWEI
[  697.221224] usb 1-1: SerialNumber: FFFFFFFFFFFFFFFF
[  697.275119] usb-storage 1-1:1.0: USB Mass Storage device detected
[  697.284520] scsi host0: usb-storage 1-1:1.0
[  698.313788] scsi 0:0:0:0: CD-ROM            HUAWEI   Mass Storage     
2.31 PQ: 0 ANSI: 2
[  698.321570] sr 0:0:0:0: [sr0] scsi-1 drive
[  698.322735] sr 0:0:0:0: Attached scsi CD-ROM sr0
[  698.331984] sr 0:0:0:0: Attached scsi generic sg0 type 5
[  698.492359] sr 0:0:0:0: [sr0] tag#0 FAILED Result: hostbyte=DID_OK 
driverbyte=DRIVER_SENSE
[  698.492384] sr 0:0:0:0: [sr0] tag#0 Sense Key : Medium Error [current]
[  698.492397] sr 0:0:0:0: [sr0] tag#0 Add. Sense: Unrecovered read error
[  698.492413] sr 0:0:0:0: [sr0] tag#0 CDB: Read(10) 28 00 00 00 ff fe 00 
00 02 00
[  698.492427] print_req_error: critical medium error, dev sr0, sector 
262136
[  698.503886] attempt to access beyond end of device
[  698.503906] unknown-block(11,0): rw=0, want=262144, limit=262136
[  698.503919] Buffer I/O error on dev sr0, logical block 32767, async page 
read
[  698.627560] sr 0:0:0:0: [sr0] tag#0 FAILED Result: hostbyte=DID_OK 
driverbyte=DRIVER_SENSE
[  698.627586] sr 0:0:0:0: [sr0] tag#0 Sense Key : Medium Error [current]
[  698.627599] sr 0:0:0:0: [sr0] tag#0 Add. Sense: Unrecovered read error
[  698.627616] sr 0:0:0:0: [sr0] tag#0 CDB: Read(10) 28 00 00 00 ff fc 00 
00 02 00
[  698.627629] print_req_error: critical medium error, dev sr0, sector 
262128
[  698.639815] attempt to access beyond end of device
[  698.639837] unknown-block(11,0): rw=0, want=262136, limit=262128
[  698.639851] Buffer I/O error on dev sr0, logical block 32766, async page 
read


root@ubuntu:~# ifconfig -a
eth0      Link encap:Ethernet  HWaddr 98:5d:ad:35:d9:21
          inet addr:192.168.1.50  Bcast:192.168.1.255  Mask:255.255.255.0
          inet6 addr: fe80::9a5d:adff:fe35:d921/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:1207 errors:0 dropped:0 overruns:0 frame:0
          TX packets:617 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:85918 (85.9 KB)  TX bytes:98907 (98.9 KB)
          Interrupt:45

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:201 errors:0 dropped:0 overruns:0 frame:0
          TX packets:201 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:14562 (14.5 KB)  TX bytes:14562 (14.5 KB)

usb0      Link encap:Ethernet  HWaddr 98:5d:ad:35:d9:23
          inet addr:192.168.7.2  Bcast:192.168.7.3  Mask:255.255.255.252
          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)

usb1      Link encap:Ethernet  HWaddr 98:5d:ad:35:d9:26
          inet addr:192.168.6.2  Bcast:192.168.6.3  Mask:255.255.255.252
          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)


root@ubuntu:~# cat /etc/network/interfaces
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

# The loopback network interface
auto lo
iface lo inet loopback

# The primary network interface
# auto eth0
allow-hotplug eth0
iface eth0 inet static
    address 192.168.1.50
    netmask 255.255.255.0
    network 192.168.1.0
    gateway 192.168.1.210
    dns-nameserver 8.8.8.8

allow-hotplug eth1
iface eth1 inet dhcp


# Ethernet/RNDIS gadget (g_ether)
# Used by: /opt/scripts/boot/autoconfigure_usb0.sh
iface usb0 inet static
    address 192.168.7.2
    netmask 255.255.255.252
    network 192.168.7.0
    gateway 192.168.7.1

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