Hi,

Today I accidently unistall Network Manager in Ubuntu 14.04 Desktop. After that NO Wired and Wireless showing in Ubuntu Linux. So
I am thinking that what i will do next , Should i search Network
Driver for that particular Computer model for Ubuntu linux or
Search "NetworkManager.deb" software for installation ?
How can i up network of that Ubuntu computer? My whole concern is not to install Network Driver but also understand requirement of NetworkManager.deb and NIC Driver (Qualcomm/Broadcom) for that Ubuntu Computer. ?

In Windows, I Simply search NIC/LAN Driver for that specific PC model for Windows OS and just installed.


KS

Do you have connection now? If you uninstalled NetworkManager, nm-applet disappeared also. I'm not really sure what it has to do with drivers.

Here's what I'd do (or try to do) in your situation:

1. Boot the computer with a live USB flash drive
2. Download the deleted debs from the Ubuntu repository
3. Reboot the computer from the hard drive
4. Install the downloaded debs
5. Start (or restart) all network services
6. Run nm-applet
7. Reconnect to my network (if it didn't happen automagically)

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No satisfactory answer yet

Hi...

Why is that? What did you try and what error messages, if any, did you receive?

Regards...

1. Did you uninstall ALL network-manager, or just the applet? If you just uninstalled the applet, you can probably use nmtui to activate your connection and reinstall the applet.

2. Unless you regularly do apt-get clean, the .debs are probably still located in /var/cache/apt/archives and you could simply go into that folder, find which ones you need, and reinstall with dpkg -i whatever.deb

2. If all that fails, do you have wired network you can update on? If so, it's probably EASIEST just to set up your wired network temporarily via standard networking tools and reinstall all your network-manager.

Please try to understand my question before reply.....My concern is that why we do not require Linux NIC driver to install ?
is network manager contains network NIC driver files ?

providing information from this thread would be helpful:
http://www.linuxquestions.org/questi...7/#post5194985

network-manager isnt reliant on drivers. with the limited info you provide i assume that the drivers are still on your system its just the network-manager gui that is uninstalled. you can probably reconnect your internet via the command-line as long as the nic drivers are still available; its just somewhat more difficult.

No, NetworkManger is a network interface configuration daemon / utility and is separate from the hardware drivers which are typically part of the operating system. All of the answers are specific to reinstalling NetworkManager and will not change any existing driver files.

Hi Mich,

As per your Statement NIC drivers is not part of Network Manager But when i uninstalled Network Manager then it removes all Wired Ethernet connection. Why ?

NetworkManger configures both wired and wireless connections. The purpose is to make setup easier for the user but you can still do it manually.

You mean to say Network Manager is a utility to install both driver either LAN or Wireless.
If we install specific NIC driver for that computer that means it is manual process.
am i correct ?

I mean it configures the adapter settings i.e. ip address / dhcp and route etc.

Your reply is confusing me again

The point of NetworkManager is to make networking configuration and setup as painless and automatic as possible. If using DHCP, NetworkManager is intended to replace default routes, obtain IP addresses from a DHCP server and change nameservers whenever it sees fit. In effect, the goal of NetworkManager is to make networking Just Work.

https://wiki.debian.org/NetworkManager
https://en.wikipedia.org/wiki/NetworkManager

It does not install drivers.