Ubuntu – USB and Network adapters don’t work after Ubuntu 14.04 fresh install. No ethernet, wifi, bluetooth, usb


After a failed upgrade from Ubuntu 13.10 to 14.04 (see), I fresh installed from a life usb. In the test system and in 13.10 usb and all my networks were working out of the box (bluetooth, ethernet, wifi, GSM card). First I ran into a login-loop problem, due to wrong permissions of the .Xauthority file (see).

Now I have no network adapters and no USB ports at all being recognized.
My system.

uname -a is:

Linux lusatia 3.13.0-27-generic #50-Ubuntu SMP Thu May 15 18:06:16 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux

ifconfig yields:

lo    Link encap:Local Loopback  
      inet addr:  Mask:
      inet6 addr: ::1/128 Scope:Host
      UP LOOPBACK RUNNING  MTU:65536  Metric:1
      RX packets:293 errors:0 dropped:0 overruns:0 frame:0
      TX packets:293 errors:0 dropped:0 overruns:0 carrier:0
      collisions:0 txqueuelen:0 
      RX bytes:21825 (21.8 KB)  TX bytes:21825 (21.8 KB)

iwconfig yields:

lo        no wireless extensions.

sudo lshw -C network gives:

 *-network UNCLAIMED     
   description: Network controller
   product: Centrino Advanced-N 6205 [Taylor Peak]
   vendor: Intel Corporation
   physical id: 0
   bus info: pci@0000:03:00.0
   version: 96
   width: 64 bits
   clock: 33MHz
   capabilities: pm msi pciexpress bus_master cap_list
   configuration: latency=0
   resources: memory:f0c00000-f0c01fff

sudo rfkill list gives no output.

dpkg -l linux-firmware

| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name           Version      Architecture Description
ii  linux-firmware 1.127.2      all          Firmware for Linux kernel drivers

sudo modprobe iwlwifi

modprobe: ERROR: ../libkmod/libkmod.c:556 kmod_search_moddep() could not open moddep     file '/lib/modules/3.13.0-27-generic/modules.dep.bin'
modprobe: ERROR: ../libkmod/libkmod.c:556 kmod_search_moddep() could not open moddep     file '/lib/modules/3.13.0-27-generic/modules.dep.bin'
 modprobe: ERROR: ../libkmod/libkmod.c:556 kmod_search_moddep() could not open moddep file '/lib/modules/3.13.0-27-generic/modules.dep.bin'
 modprobe: ERROR: ../libkmod/libkmod-module.c:809 kmod_module_insert_module() could not find module by name='iwlwifi'
modprobe: ERROR: could not insert 'iwlwifi': Function not implemented

In my dual boot Windows 7 all network is working fine.

Could that all be a simple problem with some network config file?

Best Answer

  • My problem is fixed after performing apt-get dist-upgrade and executing --reinstall linux-image-3.13.0, as suggested by bain, from a test ubuntu system of a life usb in which i mounted my local linux installation as root directory. Thanks!