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    USB boot on Y400/Y500

    Discussion in 'Lenovo' started by jorben, Mar 28, 2013.

  1. jorben

    jorben Notebook Enthusiast

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    Hey, I am trying to boot a Linux distro from a USB, and, despite the fact that it is first in the boot order, the computer refuses to boot from it, any ideas?

    I have made sure that this USB boots on other computers, namely my desktop.
     
    jorben, Mar 28, 2013
    #1
  2. mohammadbawany

    mohammadbawany Notebook Consultant

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    is secure boot off ?
    is everything in legacy mode. ?
    on the last tab there is something call optimized os defaults. are those set to other os?
     
    mohammadbawany, Mar 28, 2013
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  3. jorben

    jorben Notebook Enthusiast

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    Yes
    Yes
    And I have not touched the optimized OS defaults, but I will look at it.
     
    jorben, Mar 28, 2013
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  4. mohammadbawany

    mohammadbawany Notebook Consultant

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    i booted ubuntu from usb card reader so this should not be a problem ..... wait...
    are you sure everything is in legacy?
    because if your thing is in legacy you CANNOT boot into win 8 at all
    lemme check my bios settings for ya
     
    mohammadbawany, Mar 28, 2013
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  5. mohammadbawany

    mohammadbawany Notebook Consultant

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    ok turn usb boot on
    boot mode legacy support
    boot priority legacy first
    boot device priority hdd must be last
    secure boot off
     
    mohammadbawany, Mar 28, 2013
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  6. rollerdyke44

    rollerdyke44 Notebook Enthusiast

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    Press f10 and f12 repeatedly(sry i forgot theeexact one, just press both) during boot. You will get the option to boot from usb
     
    rollerdyke44, Mar 29, 2013
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  7. jorben

    jorben Notebook Enthusiast

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    So I was able to get it to boot, but because it is using legacy, instead of UEFI, the 3.0 drive is not performing at any kind of reasonable speed ~30 MB/s transfer instead of the full 180 MB/s - 220 MB/s I get when booting the same drive on my desktop, any ideas?

    Also, I tried f10 and f12, neither launch the boot menu, although I have been looking for the button to do so, so does anyone know the button that launches the boot menu, not the BIOS?
     
    jorben, Mar 29, 2013
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  8. mohammadbawany

    mohammadbawany Notebook Consultant

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    Shut down the pc fully
    press the novo button
    your pc will start to reveal a menu
    in the menu there is an option called boot priority .....
     
    mohammadbawany, Mar 29, 2013
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  9. jorben

    jorben Notebook Enthusiast

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    I am aware of how to set boot priority, but on most computers there is a second menu that can be accessed that allows you to select a drive to boot from without reordering the boot priority and without entering the BIOS screen.
     
    jorben, Mar 29, 2013
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  10. mohammadbawany

    mohammadbawany Notebook Consultant

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    in windows 8,(metro) type msconfig, when it pops up click on boot
     
    mohammadbawany, Mar 30, 2013
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  11. PDVJAM

    PDVJAM Newbie

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    I've bought Y500 several days ago and have a problem - can't boot with flash-drive. I've checked all variants - USB Boot enabled, Secure Boot disabled, Boot Mode and Priority - Legacy, OS Optimization - other OS. And I still don't see flash-drive in f12 Boot Menu. And if I enable USB Legacy and USB is inserted - y500 will hung up after powering on (can't reboot it with ctrl+alt+delete in this state, only over power button!). The same flash drive perfectly works on my desktop PC and visible in Y500's Win8.
    BIOS ver. 1.03. I dunno what to do...
     
    PDVJAM, Oct 22, 2013
    #11