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  • How to install windows 8 Bootloader?

    Ashish Ahuja

    Member

    Updated: Oct 25, 2024
    Views: 1.2K
    I had a triple boot system with windows 8, windows 7 and ubuntu using the windows 8 bootloader, but due certain glitches; i had to reinstall ubuntu and now the grub presides over the windows 8 bootloader. Can anyone help with making windows 8 bootloader the primary loader when the system boots and giving the options to choose from the three OS'.
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  • Abhishek Rawal

    Member • Jan 14, 2013

    You haven't provided precise information of your hard-disk partition which is making hard to understand.

    In terminal type sudo parted /dev/sda print | grep -i efi
    Note the first line of it somewhere.
    Also post it here.

    Now create a file called 30_windows in /etc/grub.d
    Open it with gedit & paste code :

    #!/bin/bash
cat << EOF
menuentry "Windows 8" {
insmod part_gpt
insmod chain
setroot '(hd0,gpt1)'
chainloader /EFI/microsoft/BOOT/bootmgfw.efi
}
EOF
    if your OS is in 2nd or third drive then replace by hd1 & hd2 resp.
    save the file.

    Open terminal & type :
    sudo update-grub

    Reboot !

    PS : You need Kernel 3.3.0 for BootEFI to support,If you're using Ubuntu 12.04 then you gotta update kernel as it is 3.2.0 generic.

    Enjoy.
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  • Ashish Ahuja

    Member • Jan 14, 2013

    The 1 TB hard disk is divided in three sections. 200gb each for windows 8 and Ubuntu and rest of it for windows 7 and other recovery and OEM partitions. And now its causing another problem in Ubuntu. Its stuck at the boot screen and the log in screen doesn't appear. I tried opening it in command line using tty1 console and typed "startx" but even that doesn't seem to be working with a time out error.
    PS: Thanks for helping anyways but unable to fix this stuff.
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  • Abhishek Rawal

    Member • Jan 14, 2013

    This problem always occurs when you dual boot with "automatic installation" of ubuntu,Thus I always suggest manual installation.

    Have you created partitions of /boot,/root,/usr,/usr/local,/tmp,/root & so on manually ?
    If yes then you can fix the issue easily by re-installing ubuntu but if not then you'll lose all the installed data.

    PS : Tell the process you did while installing OS.I mean first you installed 7 then Linux & then 8 ? or by anyother way ? Do mention in detail.
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