Kolibri OS – smallest OS with GUI

Yes this is true. KolibriOS is as small as 1.4 mb and can fit in your Grandfather’s floppy disk. Kolibri OS is a free operating system based on Menuet OS and is available in two different versions, 1.44 MB and a bigger one – with more features – of about 3 MB. It is completely written in assembly language and you can boot into it using floppy disk, hard disk, CD or DVD.

It does not have any good graphics or does not even support the variety of softwares which are available for Windows, Linux or Mac. But believe it or not, it has everything that is needed for performing basic tasks e.g Text Editor, Email Client, Task Manager, Programming Tools and a virtual desktop too.It also consists of a simple http client to surf the internet.

See this video to know more about this OS.

This OS supports NTFS file system and requires only 8 mb of RAM to run. Don’t underestimate this OS because of its size. It has got almost 8-10 games like tetris, rocket fight(don’t remember the exact name)  etc. This OS can be actually very useful when you have to access some data from age old machines.

You can boot into this OS using Floppy, CD/DVD or your Hard Disk. Or you can also try using any virtual machines like VMware or Sun VirtualBox

This is the smallest OS with GUI I have ever seen. If you know any other OS which is as small as this one and also has GUI then please let me know.

Download KolibriOS from here

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[HOW TO] Restore GRUB bootloader after a new Windows installation

GRUB is a widely used boot-loader for booting Linux-based systems. It lets you choose the OS you want to boot from the list of all operating systems currently installed on your system.

GRUB

Usually for dual-booting Windows with Ubuntu or any other Linux based OS we install the Windows OS first and then install the Linux OS. But in case if you install Windows over the existing Linux OS then you will not be able to boot inside your Linux OS as Windows boot-loader does not support Linux systems. So to get back your original GRUB boot-loader you will have to make changes in your Master Boot Record.

To do so you will require a live CD to boot Linux. After booting from the live CD run terminal and execute following commands.

sudo grub

find /boot/grub/stage1

This will show you the location of drive on the hard disk where GRUB loader is stored.

root hd(0,0)

setup (hd0)

quit

In place of hd(0,0) type the output you got with the previous command. Now restart your system and you will be able to see your GRUB loader again.

 

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VirtualBox – An open source tool for virtualization

VirtualBox is an open source software developed and maintained by Sun Microsystems. The main aim behind this kind of softwares is to provide a virtual environment for running guest operating systems. Which means you can run a different operating system inside your current operating system.

It is meant for those people who just love to experiment new things on their PC but are afraid of making any accidental damages to their system. You can also use the .vmdk image files which are created using the VMWare software.

If you are a first time user of virtual machines then you might find it a little difficult to use this software. You can read the step by step guide on creating virtual images and using them in VirtualBox over here at UbuntuGeek.

The important part to note here is the settings of this software. You can limit the amount of RAM to be used by this software. Set it to the 3/4th of what you have in your PC. So that you can run other softwares simultaneously without much trouble.  By default when you click on the VirtualBox windows the mouse control is transferred to the guest OS. To use the mouse for the actual OS use the right ctrl key. You will learn more as you start using this software.

VirtualBox is an Open source software and is available for Windows, Linux and Mac systems. You can download the latest version of VirtualBox from the link given below.

Download VirtualBox (Open-Source)

Download the user manual for latest version

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