Atualização de 14.10 para 15.04 quebrou wifi no Sony Vaio

Question

Eu fiz o upgrade de 14.04 para 15.04 via apt-get update && apt-get upgrade . Wi-Fi não funciona. Você poderia me ajudar? Eu tenho laptop Sony Vaio VPCSE2F1E.

barwnikk@barwnikk-VPCSE2F1E:~$ sudo iwconfig
eth0      no wireless extensions.

wlan0     IEEE 802.11abg  ESSID:"placek"  
      Mode:Managed  Frequency:2.412 GHz  Access Point: 30:75:12:87:DD:FE   
      Bit Rate=54 Mb/s   Tx-Power=15 dBm   
      Retry short limit:7   RTS thr:off   Fragment thr:off
      Encryption key:off
      Power Management:off
      Link Quality=67/70  Signal level=-43 dBm  
      Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
      Tx excessive retries:0  Invalid misc:77   Missed beacon:0

usb0      no wireless extensions.

lo        no wireless extensions.

wlan0 veja a rede chamada placek , mas como posso me conectar a ela? Na barra de menu na parte superior da tela, não há nenhuma rede Wi-Fi. Há No available network devices. e VPN.

Antes do upgrade do apt-get, estava funcionando. Eu tentei reiniciar,

Meu dmesg: wget -qO- http://adiantek.ovh/dmesg.txt (versão colorida)

Editar: minha placa de rede: Network controller [0280]: Intel Corporation Centrino Advanced-N 6230 [Rainbow Peak] [8086:0091] (rev 34)

Editar 2: Quando eu vou para "Sobre o computador", eu tenho: , mas ...

$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 15.04
Release:    15.04
Codename:   vivid

O que devo fazer agora?

Editar 3 (informações adicionais):

barwnikk@barwnikk-VPCSE2F1E:~$ cat /etc/apt/sources.list
# deb cdrom:[Ubuntu 14.10 _Utopic Unicorn_ - Release amd64 (20141022.1)]/ utopic main restricted
deb-src http://archive.ubuntu.com/ubuntu vivid main restricted #Added by software-properties

# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
# newer versions of the distribution.

## Major bug fix updates produced after the final release of the
## distribution.

## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team. Also, please note that software in universe WILL NOT receive any
## review or updates from the Ubuntu security team.

## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu 
## team, and may not be under a free licence. Please satisfy yourself as to 
## your rights to use the software. Also, please note that software in 
## multiverse WILL NOT receive any review or updates from the Ubuntu
## security team.

## N.B. software from this repository may not have been tested as
## extensively as that contained in the main release, although it includes
## newer versions of some applications which may provide useful features.
## Also, please note that software in backports WILL NOT receive any review
## or updates from the Ubuntu security team.


## Uncomment the following two lines to add software from Canonical's
## 'partner' repository.
## This software is not part of Ubuntu, but is offered by Canonical and the
## respective vendors as a service to Ubuntu users.


# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
# newer versions of the distribution.

## Major bug fix updates produced after the final release of the
## distribution.

## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team. Also, please note that software in universe WILL NOT receive any
## review or updates from the Ubuntu security team.

## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu 
## team, and may not be under a free licence. Please satisfy yourself as to 
## your rights to use the software. Also, please note that software in 
## multiverse WILL NOT receive any review or updates from the Ubuntu
## security team.

## N.B. software from this repository may not have been tested as
## extensively as that contained in the main release, although it includes
## newer versions of some applications which may provide useful features.
## Also, please note that software in backports WILL NOT receive any review
## or updates from the Ubuntu security team.


## Uncomment the following two lines to add software from Canonical's
## 'partner' repository.
## This software is not part of Ubuntu, but is offered by Canonical and the
## respective vendors as a service to Ubuntu users.


# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
# newer versions of the distribution.

## Major bug fix updates produced after the final release of the
## distribution.

## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team. Also, please note that software in universe WILL NOT receive any
## review or updates from the Ubuntu security team.

## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu 
## team, and may not be under a free licence. Please satisfy yourself as to 
## your rights to use the software. Also, please note that software in 
## multiverse WILL NOT receive any review or updates from the Ubuntu
## security team.

## N.B. software from this repository may not have been tested as
## extensively as that contained in the main release, although it includes
## newer versions of some applications which may provide useful features.
## Also, please note that software in backports WILL NOT receive any review
## or updates from the Ubuntu security team.


## Uncomment the following two lines to add software from Canonical's
## 'partner' repository.
## This software is not part of Ubuntu, but is offered by Canonical and the
## respective vendors as a service to Ubuntu users.

deb http://pl.archive.ubuntu.com/ubuntu/ vivid main universe restricted multiverse
deb-src http://pl.archive.ubuntu.com/ubuntu/ vivid main universe restricted multiverse #Added by software-properties
barwnikk@barwnikk-VPCSE2F1E:~$ apt-cache policy base-files
base-files:
  Zainstalowana: 7.2ubuntu9 (in english: installed)
  Kandydująca:   7.2ubuntu9 (canditet?)
  Tabela wersji: (table version)
 *** 7.2ubuntu9 0
    500 http://pl.archive.ubuntu.com/ubuntu/ vivid/main amd64 Packages
    100 /var/lib/dpkg/status

    

Answer 1

Você pode tentar realmente atualizar para o 15.04 usando sudo do-release-upgrade .

Isso pode corrigir seu wifi ou corromper sua instalação ainda mais ...

    

Answer 2

Eu consertei isso reinstalando o Ubuntu do CD. Eu salvei apenas ~.

    

Answer 3

Intel tem os drivers Linux para seu Centrino por número de modelo aqui Produtos Intel Wi-Fi Faça o download do seu arquivo

    iwlwifi-6000g2b-ucode-18.168.6.1.tgz

Abra o terminal

    cd ~/Downloads
    tar -xvzf iwlwifi-6000g2b-ucode-18.168.6.1.tgz

Neste ponto, você deve ter três arquivos extraídos, um arquivo de driver que começará com iwlwifi-6000g2b um arquivo de licença e um arquivo Leiame (todas as instruções de instalação estão neste arquivo). Você pode verificar no Nautilus para ver se o arquivo já está instalado. Se não, faça o seguinte.

Do terminal

    sudo cp ~/Downloads/<your_intel_ucode_driver> /lib/firmware

Reinicie e seu Wi-Fi agora deve estar visível.