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I have a problem when i want to install ubuntu using my flash drive. After I choose to install ubuntu along win 7,my laptop restarts and then I have to choose the boot device(my flash drive which contains ubuntu) otherwise it starts win 7.

Also when i choose the boot device,it starts the installation process again and from the beginning. model of laptop:Dell inspiron 5520 any help? thanks in advance.

Edit:I checked the disk management and there are 3 primary partitions and 1 "OEM partition".

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See the answer to Unable to install any linux based OS in my HP Pavilion dv6 notebook and edit your question if you do not have 4 primary partitions. –  user68186 Jul 22 '13 at 15:15
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Something is wrong either with your flash drive (corrupted installation files) or with the partitions of your hard drive. For some reason the installer is crashing when it tries to shrink the existing partition to make room for Ubuntu. –  user68186 Jul 22 '13 at 15:21
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1 Answer 1

Did you create Live usb correctly? check out http://www.ubuntu.com/download/desktop/create-a-usb-stick-on-windows to install the iso correctly in your USB.

also follow the following link on how to install a dual boot of windows and ubuntu: http://www.liberiangeek.net/2012/04/dual-boot-windows-7-and-ubuntu-12-04-precise-pangolin/ (refer the tutorial from ubuntu's installation images)

Before directly plunging into your installation via the USB, i would first suggest you to boot from the USB in Live mode once, just to make sure that everything is intact and the download of the iso was perfect. Doing this would check the USB for errors(if any) and will either won't boot properly in live mode or will not boot at all. I suggest you run in Live mode first.

Regards,WinuxUser

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