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Thread: Won't Detect USB

  1. #1
    Join Date
    Sep 2013
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    Kubuntu 10.10 Maverick Meerkat

    Won't Detect USB

    Computer: Acer Aspire M5-583P-6428
    Problem: I have Ubuntu installed fine on my computer, nothing else. But on USB I have Windows 7 Ultimate which I want. But my computer won't detect the USB and won't install Windows but on another computer USB works fine. I did a GRUB update but no luck.

    Laptop has no CD insert place.

  2. #2
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    Nov 2011
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    Re: Won't Detect USB

    There can be many causes for your problem. Start by reading the following wiki page (particularly the chapter 'Prerequisites' and 'Booting the Computer from USB')

    https://help.ubuntu.com/community/In...n/FromUSBStick

    and come back for further questions/comments/tips/discussion

  3. #3
    Join Date
    Sep 2013
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    33
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    Kubuntu 10.10 Maverick Meerkat

    Re: Won't Detect USB

    Well, I have Ubuntu I'm trying to install WINDOWS. But what I'm saying is that the computer isn't detecting my USB at all. Other computers are, why? Other Windows computers detect a flash drive that has windows on it. My laptop that now has Ubuntu on it won't detect flash drive that has Windows on it.

  4. #4
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    Re: Won't Detect USB

    Some possible reasons are explained in that wiki page.

    - What pendrive is it (brand name, model)?

    - Have you tried to change the settings in the uefi/bios menu system, to give priority to booting from USB or making the USB drive the first 'hard disk drive'?

    - Can you try with another pendrive? Sometimes a certain pendrive will not cooperate with a certain computer (mobo or USB system). I have recent experience of that problem (helping my brother during Christmas).
    Last edited by sudodus; December 29th, 2013 at 11:38 PM.

  5. #5
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    Re: Won't Detect USB

    In your particular case there is also the '40_custom' method, because you have a working linux system with a grub menu. See this link for a background about grub

    Scripts: /etc/grub.d/

    Add the following text to the file 40_custom (notice that it is important to leave the first lines, that come with the file)

    Code:
    menuentry "External drive (on hd1) if no eSATA drive connected. edit if necessary" {
            insmod part_msdos
            insmod fat
            set root='(hd1)'
            drivemap -s (hd0) ${root}
            chainloader +1
    }
    and run the command

    Code:
    sudo update-grub


    Then you will get a grub menu option to boot from a second drive (hd1), which could be a USB pendrive. If another drive is hd1, you can edit the line to (hd2) etc.
    Last edited by sudodus; December 30th, 2013 at 12:06 AM. Reason: indentation of code

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