我通过 升级了 14.04 到 15.04。Wi apt-get update && apt-get upgrade-Fi 无法使用。你能帮助我吗？我有一台 Sony Vaio VPCSE2F1E 笔记本电脑。
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 看到名为 的网络placek，但我该如何连接它？屏幕顶部的菜单栏中没有任何 Wi-Fi 网络。有No available network devices.VPN。
在 apt-get upgrade 之前，它是可以工作的。我尝试重新启动，
我的 dmesg:（
wget -qO- http://adiantek.ovh/dmesg.txt彩色版本）
编辑：我的网卡：Network controller [0280]: Intel Corporation Centrino Advanced-N 6230 [Rainbow Peak] [8086:0091] (rev 34)
编辑2：
当我转到“关于计算机”时，我有：
，但是......
$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 15.04
Release: 15.04
Codename: vivid
我现在该怎么办？
编辑3（附加信息）：
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
答案1
你可以尝试真的使用 升级到 15.04 sudo do-release-upgrade。
这可能会修复你的 wifi，或者进一步损坏你的安装……
答案2
我通过从 CD 重新安装 Ubuntu 解决了这个问题。我只保存了 ~。
答案3
英特尔在此处按型号提供适用于您的 Centrino 的 Linux 驱动程序英特尔 Wi-Fi 产品 下载文件
iwlwifi-6000g2b-ucode-18.168.6.1.tgz
打开终端
cd ~/Downloads
tar -xvzf iwlwifi-6000g2b-ucode-18.168.6.1.tgz
此时你应该已经提取了三个文件，一个驱动程序文件，其开头为iwlwifi-6000g2b许可证文件和自述文件（所有安装说明都在此文件中）。您可以在 Nautilus 中检查该文件是否已安装。如果没有，请执行以下操作。
从航站楼
sudo cp ~/Downloads/<your_intel_ucode_driver> /lib/firmware
重新启动后你的 wifi 就应该可见了。