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I am using lenova laptop without Cd drive. I tried to install Ubuntu 12.04 through USB stick. After completing around 20% or 22% i got error like this "Error 5 Input/Output" Please help me, I am struggling for more than a week. Please help me. Thanks

No. Its not working. Again it shows the same error. Please help. And also i dont know how to partition the harddisk. If i tried to add partition. It shows "No root is defined....."

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Possible Duplicate askubuntu.com/questions/65830/… –  Mitch Jun 27 '12 at 11:14
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1 Answer

This error occurs mostly when the USB-Stick isn't installed correctly. I would format the USB-Stick completely and then install it again.

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