小编Urs*_*ong的帖子

我无法在 Ubuntu 中映射 Windows 网络驱动器。我在终端中执行了以下命令：

karthick@karthick:~$ sudo mount -t cifs -o username=raghu //172.29.32.184 /media/Data/
Password: 
mount error(2): No such file or directory
Refer to the mount.cifs(8) manual page (e.g. man mount.cifs)

但它返回了一个错误。我希望有人能解决这个问题。

我想通过蓝牙将文件从手机发送到笔记本电脑，反之亦然。但是我系统上的蓝牙不起作用。当我在System Settings > Bluetooth 中打开 Bluetooth 开关时，没有任何反应，而且右侧的可见性开关始终处于禁用状态。

的输出rfkill list如下：

0: phy0: Wireless LAN
    Soft blocked: no
    Hard blocked: no
1: hp-wifi: Wireless LAN
    Soft blocked: no
    Hard blocked: no
2: hp-bluetooth: Bluetooth
    Soft blocked: no
    Hard blocked: no

的输出dmesg | grep Blue如下：

[   29.519992] Bluetooth: Core ver 2.21
[   29.520012] Bluetooth: HCI device and connection manager initialized
[   29.520016] Bluetooth: HCI socket layer initialized
[   29.520019] Bluetooth: L2CAP socket layer initialized
[   29.520025] Bluetooth: …

如何在不添加任何 PPA 的情况下在 Ubuntu 16.04 中安装 java-JDK 8 & maven？

我最近从Ubuntu 14.04 LTS升级到Ubuntu 16.04 LTS。我纠正了phpmyadmin和MySQL-Server的一些问题。但是每当我重新启动系统时，我就会失去互联网连接。尽管 WiFi 显示已启用，但在System Settings > Networks 中看到时，它显示所有路由器都超出范围。

我尝试停止然后使用笔记本电脑上的 WiFi 按钮重新启动 WiFi。但它没有用。

我也尝试从这个答案中给出的终端执行此操作。它也没有奏效。命令如下：

sudo service network-manager restart

另外，试过这个答案。它也没有用。命令如下：

sudo systemctl restart NetworkManager.service

的输出sudo lshw -class network如下：

*-network               
       description: Ethernet interface
       product: RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller
       vendor: Realtek Semiconductor Co., Ltd.
       physical id: 0
       bus info: pci@0000:08:00.0
       logical name: eth0
       version: 07
       serial: 14:58:d0:c1:1e:d0
       size: 10Mbit/s
       capacity: 100Mbit/s
       width: 64 …

phatez@phatez-laptop:~$ help

GNU bash, version 4.3.46(1)-release (x86_64-pc-linux-gnu)
These shell commands are defined internally.  Type `help' to see this list.
Type `help name' to find out more about the function `name'.
Use `info bash' to find out more about the shell in general.
Use `man -k' or `info' to find out more about commands not in this list.

A star (*) next to a name means that the command is disabled.

 job_spec [&]                                             history [-c] [-d offset] [n] or history -anrw …

sudo apt-get check

Reading package lists... Error!
E: Read error - read (21: Is a directory)
E: The package lists or status file could not be parsed or opened

请让我知道如何解决这个问题。

无法创建 VPN 连接，因为保存按钮始终处于禁用状态。

此外，禁用VPN 连接下的添加 VPN 连接...选项。

$ sudo nm-connection-editor

** Message: vpn: (openvpn,/usr/lib/NetworkManager/VPN/nm-openvpn-service.name) file "/usr/lib/x86_64-linux-gnu/NetworkManager/libnm-vpn-plugin-openvpn.so" not found. Did you install the client package?
Gtk-Message: GtkDialog mapped without a transient parent. This is discouraged.
** Message: Cannot save connection due to error: Editor initializing...
** Message: Cannot save connection due to error: Invalid setting VPN: IPSec gateway