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Thread: Problem in dual boot

  1. #1
    Join Date
    Aug 2013
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    9

    Exclamation Problem in dual boot

    Hi.
    I have installed the ubuntu on my pc, with dual boot, in one partition made by me. After installing, i had a problem with the grub (he didn't start when i turned on the pc), and because of that, i installed the boot-repair in trial version on a live CD, and i made the repair. After this, was all good again.
    But i saw, that when i turn on the pc, on the grub, there was two windows 8 boot: "Windows 8 (sda1)" and "Windows8 (sda2)". I didn't know what to choose, so e choose one, and in another day, i choose the other to see what happens. Was everything ok. But, after do that, in my ubuntu, i couldn't no longer acess the disk of the windows 8 (that had my stuff). What is the problem? What have i done? What can i do? Please help me, it's urgent!!!!!!!


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  2. #2
    Join Date
    May 2007
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    The New Forest
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    Xubuntu Development Release

    Re: Problem in dual boot

    Thread moved to Absolute Beginners Section.

  3. #3
    Join Date
    Jun 2009
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    Chicago Suburbs
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    Ubuntu 14.04 Trusty Tahr

    Re: Problem in dual boot

    Welcome to the forums.

    Please attach screen shots, not post in line. Some users do not have high speed Internet and it makes thread slow loading.

    Did you turn fast boot off in Windows 8. System mentions the hibernation which is the fast boot. Windows 8 uses hibernation to make it seem like to boots faster when it really is just always using hibernation. And that often causes issues.

    WARNING for Windows 8 Dual-Booters
    http://ubuntuforums.org/showthread.php?t=1953674
    It defaults shutdown to a hybrid hibernation/off state for fast boot
    http://www.kapilarya.com/how-to-enab...p-in-windows-8
    But then files may be corrupted similar to Windows 7 Hibernation:
    http://ubuntu-with-wubi.blogspot.ca/...rid-sleep.html
    http://superuser.com/questions/14472...te-w-dual-boot
    Fast Startup off/hibernation
    http://www.eightforums.com/tutorials...ndows-8-a.html
    Force removal of hiberfil from Ubuntu
    http://www.hecticgeek.com/2013/01/mo...u-hybrid-boot/
    http://blogs.msdn.com/b/b8/archive/2...windows-8.aspx
    For info on UEFI boot install & repair - Updated Mar 2015:
    http://ubuntuforums.org/showthread.php?t=2147295
    Please use Thread Tools above first post to close thread when/if answered completely.







  4. #4
    Join Date
    Aug 2013
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    9

    Re: Problem in dual boot

    Ha, ok, sorry about that, i'm not doing it again.
    But i didn't turned off the fast boot. And i don't have UEFI Bios, so, i don't have problems with the secure boot and etc.
    But, after all, what have i to do, to gain acess again, on the files in ubuntu?
    And, when i turn on the pc, what windows 8 i choose?

  5. #5
    Join Date
    Jun 2009
    Location
    Chicago Suburbs
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    Distro
    Ubuntu 14.04 Trusty Tahr

    Re: Problem in dual boot

    Windows 8 always has fast boot whether BIOS or UEFI. With BIOS you avoid all the secure boot issues, but have the 35 year old BIOS and MBR partitions with 4 primary partition limit.

    If you ran Boot-Repair it copies essential boot files from the 100MB boot partition that is normally hidden into main install and then grub2's os-prober sees boot files in both boot partition usually sda1 and main install usually sda2.
    For info on UEFI boot install & repair - Updated Mar 2015:
    http://ubuntuforums.org/showthread.php?t=2147295
    Please use Thread Tools above first post to close thread when/if answered completely.







  6. #6
    Join Date
    Aug 2013
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    9

    Re: Problem in dual boot

    I understand, then, i have to turn of the fast boot, and it's done? After that i have to do a reset on my pc? And what boot should i inicialized?

  7. #7
    Join Date
    Jun 2009
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    Chicago Suburbs
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    Ubuntu 14.04 Trusty Tahr

    Re: Problem in dual boot

    One of the links above discusses removing the hiberfile, but I think you have to get into Windows repairs.
    Some have had to use Windows repair flash drive, others have repaired it some other way but have not been clear here.

    You may have to reinstall the Windows MBR to directly boot Windows as grub's boot entry usually is too quick to let you get into repairs. Then you have to reinstall grub.

    Windows 7 repair USB, Also Vista if service pack installed
    http://www.intowindows.com/how-to-re...tion-dvd-disc/
    http://www.webupd8.org/2010/10/creat...usb-drive.html
    Windows 8 UEFI repair USB must be FAT32
    http://www.eightforums.com/tutorials...ndows-8-a.html
    http://social.msdn.microsoft.com/For...-166dddf32205/
    http://www.ghacks.net/2012/11/01/how...m-repair-disc/


    How to restore the Ubuntu/XP/Vista/7 bootloader
    https://help.ubuntu.com/community/Re...ta/7Bootloader
    For info on UEFI boot install & repair - Updated Mar 2015:
    http://ubuntuforums.org/showthread.php?t=2147295
    Please use Thread Tools above first post to close thread when/if answered completely.







  8. #8
    Join Date
    Aug 2013
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    9

    Re: Problem in dual boot

    This can work?

    http://www.redmondpie.com/how-to-fix...r-boot-record/

    P.s: sorry, but i don't understand what you mean when you said: " You may have to reinstall the Windows MBR to directly boot Windows as grub's boot entry usually is too quick to let you get into repairs. Then you have to reinstall grub." .

  9. #9
    Join Date
    Aug 2013
    Beans
    9

    Re: Problem in dual boot

    http://ubuntuforums.org/showthread.php?t=1595065

    This thread says the same problem, and they say that is a "bug" of grub. But my can't be, because i can't have acess to the main files (disk C on my ubuntu.

  10. #10
    Join Date
    Jun 2009
    Location
    Chicago Suburbs
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    Hidden!
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    Ubuntu 14.04 Trusty Tahr

    Re: Problem in dual boot

    If you use Boot-Repair, or your Windows repairCD or flash drive you can install the Windows boot loader to the MBR. Then you will be back to directly booting Windows and can resolve the Windows issues. Grub really only chain loads to boot a working Windows and you cannot repair or do much from grub to fix Windows.

    Once Windows is working then use Boot-Repair or manually procedures from a Linux repairCD or your Ubuntu live flash drive or DVD to reinstall grub to MBR and dual boot.
    For info on UEFI boot install & repair - Updated Mar 2015:
    http://ubuntuforums.org/showthread.php?t=2147295
    Please use Thread Tools above first post to close thread when/if answered completely.







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