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How do I install Ubuntu from an USB drive / create a live USB-stick?

I own a little Acer Aspire One with no CD drive (it's a 10' notebook and was given it with operating system / AVG failure and wont boot windows). So I thought I'd put Linux on it. I have a CD with i386 - 32bit (as it is compatible with MOST things) which I've had running on a HP notebook of a friend's. I have created an ISO with IMGburn and created a boot-able thumb drive (4 GB Imation) with Rufus.

When I boot from USB, I am asked for a keyboard layout - no worries and then I get a command prompt (FeeDOS DISPLAY version 0.013). Once I managed to get a very basic help screen, that got me nowhere of use.

The only thing I can get it to do is tell it a:>drive which it chucks a hissy fit as this is not the USB drive and it is stuck at that. Wondering what I've got wrong?

I should add that I've done this using the image of Ubuntu 12.04 i386 Live CD if any of this makes a difference. Any help would be much appreciated.

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marked as duplicate by con-f-use, Jorge Castro, jokerdino, RobotHumans, Mitch Aug 24 '12 at 5:33

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

Because you created a DOS boot disk with Rufus, but you need to create media that just boots the Live CD or alternate installer, which is different. Please follow the community documentation.

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In your question you have not mentioned the bios settings . the problem might be 1st priority .

look at your BIOS settings and put the 1st boot priority as Removal disk and 2nd as Hard disk then boot again . I am sure it will boot to your USB and will give you a Ubuntu live System , unless you made some mistakes while making a bootable USB .

for more information on how to make a bootable USB Ubuntu Live CD , please refer this .

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The BIOS is set to load USB first. It loads the USB and shows FreeDOS, and if I ask for C:\>dir it shows me the 5 or 6 files on the USB stick: As follows: FreeCom version 0.84-pre2 XMS_swap etc, etc about FreeDOS Volume in drive C is INSTALL UBU LOCALE <DIR> CONFIG SYS 277 AUTOEXEC BAT 210 AUTORUN INF 224 – Blake Aug 23 '12 at 2:27

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