No bootable device - insert boot disk

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broot
2012-03-26
2013-05-21
  • broot
    broot
    2012-03-26

    I ran dban last night and went to install ubuntu from a liveusb formatted in unetbootin. No matter how much I try and make my computer boot from the usb it comes up as "boot error" or "no bootable device - insert boot disk and press enter". I have an acer aspire 5315. I've tried to disable booting from hard drive as was suggested in a few places on the forum but the aspire BIOS doesn't seem to let me disable anything in boot, just rearrange the order. Any help would be greatly appreciated.