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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:127.0.0.1  Mask:255.0.0.0
      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

Desired=Unknown/Install/Remove/Purge/Hold
| 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?

Community
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Alice
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  • I had a similar problem, at the end I've installed lubuntu 14 and installed over the desktop manager of preference (gnome-shell in my case) – lcapra Jun 06 '14 at 07:54
  • What kernel are you running? Is there any output at the end of /var/log/kern.log when you do do modprobe iwlwifi? Do you have linux-firmware installed? (dpkg -l linux-firmware) – bain Jun 06 '14 at 08:04
  • Hi muka, so the problem was connected to the desktop manager? I would prefer to stay with ubuntu and make this installation work .. – Alice Jun 06 '14 at 08:04
  • @bain, kernel: 3.13.0-27-generic. I do have linux firmware installed (Version 1.127.2), I add the output of dpkg -l linux-firmware to my original post. modprobe iwlwifi yields an error and adds nothing to kern.log – Alice Jun 06 '14 at 08:17
  • What is the modprobe error? There is a slightly later kernel release, if you have wired networking you could update with apt-get update && apt-get dist-upgrade – bain Jun 06 '14 at 08:19
  • added the error to my post – Alice Jun 06 '14 at 08:21
  • possible duplicate of "Could not open moddep file '/lib/modules/3.XX-generic/modules.dep.bin'" when mounting using a loop – bain Jun 06 '14 at 08:22
  • Wired network is also not working. But I updated and upgraded everything last night from the life usb test system via mounting my local ubuntu, I can try that again- – Alice Jun 06 '14 at 08:22
  • Linked question suggests sudo apt-get install --reinstall linux-image-3.13.0 - can you try it? – bain Jun 06 '14 at 08:23
  • I did apt-get dist-upgrade and the suggested --reinstall linux-image-3.13.0 from the life usb test system, and networks and USB magically work. Thanks a lot!!!! May I add your comment as correct answer? – Alice Jun 06 '14 at 08:54

2 Answers2

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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!

Alice
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I know there is already an accepted answer but I found a different solution as the accepted one did not work for me.

I checked the software updater, it said the latest update had been downloaded but not installed yet...

After looking through the items to update, I noticed that two of the items were 'ubuntu-core' and they could not be installed alongside other items due to an untrusted package issue.

So, the solution was to uncheck all apart from the ubuntu-core updates, run the install via 'install now' and reboot my machine.

Hey presto, I'm here posting this answer via my usb keyboard as a result!

planty182
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