After a Fresh Installation of Ubuntu ….

By default, ubuntu doesn’t provide proprietary multimedia codecs. As a result you cannot play you favorite mp3 songs or avi, divx, mkv, mp4 etc. videos. So after a fresh installation of ubuntu, set up your Internet connection and install some packages by issuing the following commands on the terminal.

sudo apt-get update
sudo apt-get install ubuntu-restricted-extras

It will install all the multimedia codecs including support for rar file, Microsoft fonts, flash plugin etc.

That’s it. Enjoy your ubuntu box ……

Additional

  • If you are a fan of VLC, then just let it be installed

sudo apt-get install vlc

  • By default, you can compile your C codes (using gcc), but for C++ you have to install C++ support packages for gcc.

sudo apt-get install build-essential

Then you can compile your favorite C++ codes using  g++ .

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Reinstalling GRUB in a Dual-Boot System …..

In a dual boot system (Windows & Ubuntu), the straight forward strategy should be, first you install windows and then ubuntu. If you install ubuntu prior to windows, system cannot boot into ubuntu because windows bootloader (NTLDR) cannot boot Linux what Linux bootloader (GRUB) can. At this situation you need to reinstall GRUB.

Follow the steps,

1. Insert your Ubuntu live CD into your computer and restart it.Boot from it (Try ubuntu).

2. Open terminal and type

sudo fdisk -l

and locate which partition contains your linux installation(e.g /dev/sda9).

3. Then type

sudo mkdir /media/root

sudo mount /dev/sda9 /media/root

(sda9 should be replaced by your linux partition)

If you’ve done this correctly, then you should see the following output if you type    ls  /media/root

bin dev home lib mnt root srv usr boot etc initrd lib64 opt sbin sys var cdrom initrd.img media proc selinux tmp vmlinuz

4. At last type

sudo   grub-install   –root-directory=/media/root   /dev/sda

after successful execution the output will come “Installation finished. No error reported.” If it comes,then you can reboot your computer.

If the output doesn’t come like this,type

sudo   grub-install   –root-directory=/media/root   /dev/sda   -f

(that is with the force option)