How to Resolve "Grub Rescue" Using Windows Repair Disc/LINUX Live CD

Some time when you have dual boot installed and then you remove one of the OS, say Linux setup. Then you will end up in the "grub rescue" prompt. Following steps will help you fix the Windows installation media 'grub rescue' using the windows repair disc you have or with the windows installation CD.


1) Get the Windows repair disc ready. Repair disk can be created by following steps. Start menu -> control panel -> backup and restore -> in left panel you will fine create a repair disc. Insert a CD and click. That’s it done :)
  
2) Get start the device (please refer to your device for boot option ex: dell -> F12) and choose Boot from CD/DVD option.

3) Then choose “command prompt” from Option list given.


4) Follow the steps, 
>bootrec /fixmbr 
>bootrec /fixboot 
>bootrec  /rebuildbcd

Command prompt will show successful message.....


Using Ubuntu Live cd:

1. sudo mount /dev/sdaX /mnt
   Here, sdaX is your boot partition. You can get a list with sudo blkid like this,

   /dev/sda1: LABEL="Windows" UUID="BISBHBIUBYIVBI5968" TYPE="ntfs" 
   /dev/sda3: LABEL="Ubuntu 14.04" UUID="naskfjsdb-sdfsdf" TYPE="ext4" 
   /dev/sda8: LABEL="ENTIES" UUID="23534HDJFDB345" TYPE="ntfs" 
   /dev/sda9: LABEL="DATA" UUID="23432BVFGRDG" TYPE="vfat" 
   

   Note: sdaX must be Linux partition.
2. sudo grub-install --boot-directory=/mnt/boot /dev/sda
3. sudo update-grub

:) done ...restart the Machine and check. Good Luck :) 
 

C++ libraries that would help you..........

If you require finding out implementation of a particular functionality of C++ language, you don't need to waste your time searching on Google. Here we provide you a comprehensive list of top ten open source C++ libraries.

Generic 

* Boost - It's a large collection of generic libraries

* Dlib - This library contains information on networking, threads, graphical interfaces, data structures and more.

* JUCE - It's a mature cross-platform C++ tool kit

* Reason - It provides knowledge on xml, xpath, regex, threads, sockets, http, sql and so on.

* Folly - This Facebook Open-source Library is designed with practicality and efficiency in mind.


Communication 

* C++ RESTful framework - This is designed to be embedded into a wide range of applications.

* C++ REST SDK - This is a HTTP client and listener.

* Cpp-netlib - This is one of the best C++ Network Libraries.

* Boost.Asio - It talks about asynchronous and synchronous networking, timers, serial I/O

* POCO - It shares knowledge about networking, encryption, HTTP and Zip files

Graphic user interface 

* FLTK - provides modern GUI functionality

* nana - A modern C++ GUI library

* WXWidgets  - C++ library that lets developers create applications for Windows, Mac OS X, Linux and other platforms

GTK+ 

* gtkmm - C++ Interfaces for GTK+ and GNOME

* goocanvasmm - canvas widget for GTK+ that uses the cairo 2D library for drawing.

* libglademm 

* libgnomecanvasmm 

Qt 
* Qt

* qwtplot3d 

* qwt5 

* libdbusmenu-qt

General Multimedia 

* SFML (Simple and Fast Multimedia Library) 

* SDL (Simple DirectMedia Layer) 

Graphics 

* cairomm 

* nux 

* pangomm 

* gegl 
* plotutils 

Audio 

* soundtouch 

* chromaprint 

* libofa 

* libmusicbrainz 
* audiofile 

Video 

* crystalhd 

* mjpegtools 

* libmatroska 

* libVLC 

* gstreamermm 

3D Graphics 

* Ogre3D

* OpenGL 

* GLEW 

* GLFW 

* assimp 





Source: efytimes