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Thread: dual boot xubuntu windows 7 problem

  1. #1
    Join Date
    Aug 2015

    dual boot xubuntu windows 7 problem

    trying to have dual boot xubuntu 14.04 LTS and windows 7 <work reasons : (
    new computer laptop acer E5-571-57H1
    windows 7 pre installed (not used at all, just opened)
    Secure Boot disabled
    windows starts automatically, F12 does not list xubuntu
    tried secure boot repair - no luck
    tried boot into Windows admin command prompt: bcdedit /set {bootmgr} path \EFI\ubuntu\shimx64.efi - no luck
    here secure boot repair report
    if somebody could help, many thanks
    Last edited by gennarof; August 19th, 2015 at 04:36 PM.

  2. #2
    Join Date
    Jun 2009
    SW Forida

    Re: dual boot xubuntu windows 7 problem

    It looks like you left Windows fast startup on. You need to have that off.
    Fast Startup off/hibernation

    Acer do not need the suggested fix by editing BCD in Windows.
    But they need you to set a supervisory password and set "trust" on the Ubuntu boot files.

    Acer Aspire ES1-512-C39M Details on supervisor password and settings to enable trust on ubuntu entries Also R14 model same fix
    Details on password & trust setting:
    How to install Ubuntu for dual-boot with Windows 8 on Acer Aspire V5-551G. Post #3 Supervisory password required
    UEFI boot install & repair info - Regularly Updated :
    Please use Thread Tools above first post to change to [Solved] when/if answered completely.

  3. #3
    Join Date
    Aug 2015

    Re: dual boot xubuntu windows 7 problem

    Many many thanks Oldfred and for the very quick reply
    I am a 9 years passionate ubuntu user and I never found such a complicate issue
    it took me 8 hours to solve (for sure my skills do not help...)
    I am surprised that Acer created such a ridiculously complicates setting, microsoft is not enough, we need also the manufacturers messing around...

    I solved through these links

    not sure turn off windows fast start-up necessary
    for sure not necessary disable Secure Boot in bios in my case <a lot of advice stress the importance of this

    I try to recap my solving (for computer laptop acer E5-571-57H1)
    (after installed xubuntu)

    turn on and press F2, bios come up (mine called InsydeH20 setup utility rev. 5.0)
    go to page Security
    go to "Set Supervisor Password" press ENTER (I set pass "a")
    go to "Select an UEFI file as trusted for executing:" press ENTER
    a new page appear with listed:

    press ENTER on the first HDD0 and see if a sub list with the name "<EFI>" comes up (in my case did not show <EFI> but: recycle bin and system volume info)
    press ENTER on the second HDD0 and see if a sub list with <EFI> comes up (in my case showed <EFI> and <boot-sav>)
    press ENTER on <EFI>, new list comes
    press ENTER on<ubuntu>, new list comes with:

    press enter on each one and give them a for you recognizable name (I used "xubuntushimx64efi", "xubuntugrubx64efi", "xubuntuMokManagerefi")
    and press Yes

    save and exit

    go back in bios f2

    go to "Set Supervisor Password" and set pass to nill-blank (you want to eliminate a not necessary password that you could forget...)

    go to "boot page" tab
    you should find the named shimx64.efi, grubx64.efi, MokManager.efi
    bring them up in the priority boot list (above windows if you want ubuntu default system)

    go to page main - enable F12 boot menu
    save and exit

    now ubuntu should be your main boot and if you need windows press F12 at start and select...



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