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Hello, I've installed CentOS 7 to work side by side with Windows 8, but is not listed in the boot menu after installing Cent OS. i tried to add a ...
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  1. #1
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    Question Cannot dual boot with Windows 8


    Hello,

    I've installed CentOS 7 to work side by side with Windows 8, but is not listed in the boot menu after installing Cent OS.

    i tried to add a custom entry and automatic detection using 40_custom and 15_windows, it says found Windows 8 on dev/sda1 ... bla bla bla but nothing happens after restart

    I don't want to use Windows repair so i can't use centos anymore. i want to use centos and windows side by side.

    any solutions?

    Thanks in advance.

  2. #2
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    Apr 2014
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    Try using a linux boot-repair disk. Usually that will fix the problem

  3. #3
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    Jul 2014
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    thank you very much, but i wasn't able to boot from USB drive using boot-repair.

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  5. #4
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    Lightbulb Solution

    i found the solution, after running the grub2-mkconfig i just realized that the "/etc/grub2.cfg" is not updated even if it's detecting the windows partition at the terminal.

    after running the grub2-mkconfig, i just checked the section "### BEGIN /etc/grub.d/30_os-prober ###", and copied the menu entry from there, as explained in the picture:


    Screenshot from 2014-07-28 15:54:53.jpg

    after that, i added the menu entry to the grub2 config file "/etc/grub2.cfg" in the same section "### BEGIN /etc/grub.d/30_os-prober ###".

    and finally, i booted to the windows os

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