How to install Fedora 20 64bit on new machine or as a replacement for XP

I am going to show how to install fedora 20 64bit as a replacement for your existing XP or a fresh installation. Remember to backup important data before any installation procedure.

1. Download fedora 20 64bit - This file is around 900MB so wait patiently

Fedora 20 64-bit

2. Download Fedora live USB installer – 13MB file to make fedora bootable from your USB. 2GB min USB size needed

LiveUsb Creator

3. Install Live USB in your current XP/Win7/Win8 OS and choose your C directory preferably. Don’t install in USB 

4. Run LiveUSB Creater from below screen or from Start Menu 

5. Now it is time to choose the Fedora 20 OS that we have downloaded. By default the target pen drive is highlighted if not select the USB which you want to make as bootable

6. Click browse and choose the OS ISO file

7. Click create USB. ‘Extracting live image…’ appears. Wait for FEDORA 20 ISO to be copied to the USB. LiveUSB automatically makes the USB boot-able.

8. Once completed, close the window and reboot system with the pen drive present. Remember that you can either install fedora alongside windows or do a complete replacement. Here I am showing a method to replace windows XP.

9.  Now boot into drive and start the installation by entering flash drive

10. Start Fedora Live. This will start a live instance just like a demo from where you can install

11. Click install to hard drive and choose your installation destination

12. Now choose your Hard Disk if multiple hard disks are present and click done

13. Click custom partitioning and delete all existing partitions. Please note that this will delete all existing data. So carefully delete only the volumes that are unnecessary to get space.

14. After you have enough space for installation, click ‘click here to create them automatically’ 

15. The partitions are automatically created and shown as preview. Till here only changes are shown and not applied to the system . In case you want to revert , click Reset All else click Done and click ‘Accept Changes’

16. Choose your root and user password. Don’t lose these password as it is not possible to recover

17. Finally, wait for the installation to get over. Once installation is done. Click Quit. Restart System

18. After you have rebooted and logged in, it is time to do some installations to enable Flash, Java, Chrome, Mp3 etc…

19. Open app called Terminal and type ‘su’. Enter root password.

20. We’ll now include the repositories which are internet directories from which softwares are downloaded and installed. RPM Fusion and Livna are the needed repositories. Open Terminal application and paste the following

RPM Fusion:

su -c 'yum localinstall --nogpgcheck http://download1.rpmfusion.org/free/fedora/rpmfusion-free-release-$(rpm -E %fedora).noarch.rpm http://download1.rpmfusion.org/nonfree/fedora/rpmfusion-nonfree-release-$(rpm -E %fedora).noarch.rpm'

Livna:

su -c "rpm -ivh http://rpm.livna.org/livna-release.rpm"

Chrome Browser:

• Type vim /etc/yum.repos.d/google-chrome.repo then , copy the following into the file and enter :wq to save the file

[google-chrome]name=google-chrome - 64-bit

baseurl=http://dl.google.com/linux/chrome/rpm/stable/x86_64

enabled=1

gpgcheck=0

• Enter yum install google-chrome-stable

Java:

• Download from Java Website
• Change to the directory in which you have downloaded java. Type:

cd 

For example, to change to download directory, Type:

cd /home/user/Downloads/

• Install the package. 

rpm -ivh  

• Delete the .rpm file if you want to save disk space.

Flash:

• Download from Adobe Website
• Change to the directory in which you have downloaded java. Type:

cd 

For example, to change to download directory, Type:

cd /home/user/Downloads/

• Add the repository. This only adds flash repository

rpm -ivh

• Install flash

yum install flash-plugin nspluginwrapper alsa-plugins-pulseaudio libcurl

Remember that all the above mentioned procedures require root access.

How to add user defined function to library in C?

Hey Guys,

It may seem daunting at first but it is pretty much simple and am going to show you how to add a function to library in the gcc environment. I'll be using factorial as an example here.

Few things to remember,

1. Library functions are precompiled programs to help save time while calling them
2. You have to convert your function into a object file i.e factorial.o before saving them into the library
3. After compilation, you can either link the library manually or link it via includes while executing. But here am going to show you how to do linking manually

Steps to be followed:

• Create a user defined function which you want to add to library in the following format.

• 

• go to cmd and change to the current folder where the program is stored.

• Type gcc  -c  .\factorial.c . Here -c tells the compiler to convert the source code .c into an object code .o

• 

• So you have converted the function into object file. Now it's time to add it to the library file which is usually someName.a

• Type ar rvs  libsoe.a  .\factorialForLib.o 

• 

• In the above line, r means to replace objects in the library, The v option means verbose which tells you what is happening and when you use ar to make libraries of objects, use the s option.

• Since we have added the function into the library , it is time for linking the library and using it in our calling program.

• Type  gcc  .\factUsingLib.c  .\libsoe.a  -o  .\factUsingLib

• 

• Now you would have successfully called a used defined library manually.

For more info click here

How to install C in Windows for free?

There are three components  needed to start programming using C language. They are Editor, Compiler and Interpreter

1. Editor – Download and install the latest copy of Notepad++
2. Compiler - Download and install latest version of MinGW
3. Interpreter – Use command prompt or power shell

Steps to start programming:

• First type your C code in notepad++ and save it as someName.c 
   

• With MinGW already installed and GCC ready to compile your program, it is time for your code to be converted into object code and then execution
• Open cmd or powershell and go the directory where the c file is stored.
• With the environment variable already set, use the command gcc someName.c -o someName
• Now just open the created exe file directly or using cmd. Voila!!! you got your first successful program running

Anniversary

 

President Obama meets with the families of the 30 Americans that died in a helicopter crash in Afghanistan, Riots in England, Woodstock, Israeli “tent city” protests continue, the world stock market crash, and giant radiation bursts in space.

Read more: http://lightbox.time.com/category/closeup/?iid=lb-close#ixzz1UzXj4k00

The Last Liftoff: A Farewell to the Shuttle Program

Let's expect NASA to release a fuel efficient space program