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Boot an ISO Image using Grub2 or Install Ubuntu without needing a CD DVD or USB drive Grub2 is capable of directly booting ISO images for many Linux distros if the entries have been properly defined in the Grub2 configuration files. What if you don't have access to a CD/DVD drive/disc or a USB drive and you want to install Ubuntu (or any other Linux)? Or if you want to perform some system maintenance tasks like those related to partitions or filesystems which can only be performed from within a Live CD environment? Grub2 comes in handy at that point as it would not only boot the ISO image from your HDD, but it would also let you perform an installation from the ISO image if you want to. Things You Need An existing install of Ubuntu (or any other Linux) with a working instance of Grub2. The desired ISO image that you want to boot/install. Procedure The ISO image can be placed virtually anywhere on your HDD but for the sake of simplicity, we would place it inside a new directory unde...

Block Facebook any Website in your computer Without any Software If you want to block / restrict a certain website or several websites on your computer , just follow these steps . This trick is useful to block web sites you navigate to your children or anyone in your home or business computers. You can also lock the software to validate the product key or license information form from the website of the software. Now lets see how to block a website. Example : www.facebook.com Open My Computer and navigate to C : Windows System32 drivers etc Open the hosts file in Notepad (double click to open) Select Notepad in the Open With dialog box . Under the 127.0.0.1 localhost                                      :: 1 localhost Enter websites following format :...