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I am a newbie to all of this stuff.

Initially I had a OS CD of Ubuntu 10.4 version. I never tried to install it. Now I have lost my CD somewhere. Earlier I copied the content to my laptop. When I tried to install by copying to another CD/pendrive it didn't install.

Now i am using Windows. But I would like to install Ubuntu, because everyone said that Linux/Ubuntu is an amazing OS.

So I searched in google for a solution. With Unetbootin, pendrive linux, I can make a bootable pendrive to install. But Unetbootin asks for an ISO-image. I did many experiment and wastes more than 9 CD's. I have no experience with that. Where can I get the ISO-image? Actually, what is an ISO-image?

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Have you seen the official guide for creating and installing through bootable USB: ? – upapilot Jun 19 '12 at 11:15
Is it possible to create image from extracted files – Tachyons Jun 19 '12 at 11:27
@abcd yes its possible, but it won't be bootable. You need to manage the configure flag and required system files manually. – Web-E Jun 19 '12 at 11:30
Your style is atrocious. Please work on the long term goal of improving your questions. – con-f-use Dec 18 '13 at 14:36

You can download copy of ubuntu iso at

For a pen drive installation, The motherboard has to support booting from a USB flash/pen/key drive. Please consult your BIOS manufacture reference for more details.

An image is a copy of a cd/dvd that can be directly used for burning/mounting. Its more like a zip file or you can say a single file representation of a whole cd/dvd. There are some more features. Like - Copying contents of a cd/dvd and burning them won't make the cd/dvd bootable. There are special flags with image file, that causes the cd to be bootable after burning.

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Welcome to Ask Ubuntu! Whilst this may theoretically answer the question, it would be preferable to include the essential parts of the answer here, and provide the link for reference. – Kevin Bowen Feb 19 '13 at 5:09

You can use this tool for creating your bootable USB drive it can be used from Windows / Linux /Mac

It can also directly download the iso file to create the bootable usb stick for you.


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did you read his question at all? He doesn't have the image. – Web-E Jun 19 '12 at 11:11
yeah, either the question was edited or I was temporarily blind when answering – tomodachi Jun 20 '12 at 20:29

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