Windows 8 and 8.1 Forums


Dualbooting Windows 8 Pro. RTM & Ubuntu

  1. #1

    Dualbooting Windows 8 Pro. RTM & Ubuntu


    So, as the title suggests, I want to dual boot Ubuntu and Windows 8, but not sure how to do it if Ubuntu is installed first. I'm new to Ubuntu, but correct me if I'm wrong: I find a partitioning program, partition my drive, and "burn" the leaked RTM ISO to my USB drive and install. Yes? No?
    Also, will Windows be able to detect a partion that was created by Ubuntu? Again, I'm very new to Linux, and don't know much other than basic OS X and Windows, and a tiny bit from my days when I used Jolly Cloud OS on my old netbook.

    Any help would be awesome. I'm kind of excited to try out final Windows 8 since my installation of RP crapped out on me (thus, installed Ubuntu)

    Thanks

      My System SpecsSystem Spec

  2. #2


    Posts : 354
    Windows Server 2012 Standard w/Hyper-V


    Best advice is to start over, and install Windows first. Trust me on this one.
      My System SpecsSystem Spec

  3. #3


    Yes you partition your drive and then install like normal using a custom install in the windows setup to choose your new partition.

    Windows will not be able to detect linux partitions. ext4/ext3/ext2 partitions are not native to windows, but you can find a few ext explorers. (or even a driver which embeds ext into windows)

    To change the size of your ubuntu partition (to make space for windows no?) you should get a partition program. You cant partition a device when it's mounted so you will have to boot off a usb drive to partition it.


    WARNING: May cause data loss. (Always good to backup important data)
    Get Gparted here (It's a linux partition manager)
    Use unetbootin or burn gparted to a CD
    Boot into your usb or CD and choose gparted (default)
    If it asks you anything just press enter (everything is default)
    At the end you should be taken to a desktop. Wait a few moments and a window should pop up.
    Shrink your linux partition about 50 gigs from the right (My windows 8 install takes about 30 gigs, you can choose whatever amount)
    The process should take about a minute (If you shrunk from the left it will take about an hour)
    Proceed to install windows 8 RTM

    Windows 8 writes over the MBR so you will have to reinstall grub.
    load Gparted again and get to the desktop
    Double click terminal (leave the gparted window open)
    now type the following
    sudo mkdir /mnt/ubuntu
    sudo mount /dev/sd
    xx /mnt/ubuntu (Replace xx with your ubuntu partition number [you can find it in gparted] Ex: /dev/sda1)
    sudo mount -o bind /dev /mnt/ubuntu/dev
    sudo mount -t proc /proc /mnt/ubuntu/proc
    sudo mount -t sysfs /sys /mnt/ubuntu/sys
    sudo chroot /mnt/ubuntu

    What this does is it changes your root from gparted to your ubuntu installation.
    From there we want to run the grub installer

    grub-install /dev/sd
    x --no-floppy (replace x with your partition letter, ONLY THE LETTER)

    Reboot, you should only have ubuntu in the grub menu. Not to worry, it hasn't been deleted.
    Boot into ubuntu and then run sudo update-grub from the terminal to have it add your new windows 8 partition
      My System SpecsSystem Spec

  4. #4


    Quote Originally Posted by XDleader555 View Post
    Yes you partition your drive and then install like normal using a custom install in the windows setup to choose your new partition.

    Windows will not be able to detect linux partitions. ext4/ext3/ext2 partitions are not native to windows, but you can find a few ext explorers. (or even a driver which embeds ext into windows)

    To change the size of your ubuntu partition (to make space for windows no?) you should get a partition program. You cant partition a device when it's mounted so you will have to boot off a usb drive to partition it.


    WARNING: May cause data loss. (Always good to backup important data)
    Get Gparted here (It's a linux partition manager)
    Use unetbootin or burn gparted to a CD
    Boot into your usb or CD and choose gparted (default)
    If it asks you anything just press enter (everything is default)
    At the end you should be taken to a desktop. Wait a few moments and a window should pop up.
    Shrink your linux partition about 50 gigs from the right (My windows 8 install takes about 30 gigs, you can choose whatever amount)
    The process should take about a minute (If you shrunk from the left it will take about an hour)
    Proceed to install windows 8 RTM

    Windows 8 writes over the MBR so you will have to reinstall grub.
    load Gparted again and get to the desktop
    Double click terminal (leave the gparted window open)
    now type the following
    sudo mkdir /mnt/ubuntu
    sudo mount /dev/sd
    xx /mnt/ubuntu (Replace xx with your ubuntu partition number [you can find it in gparted] Ex: /dev/sda1)
    sudo mount -o bind /dev /mnt/ubuntu/dev
    sudo mount -t proc /proc /mnt/ubuntu/proc
    sudo mount -t sysfs /sys /mnt/ubuntu/sys
    sudo chroot /mnt/ubuntu

    What this does is it changes your root from gparted to your ubuntu installation.
    From there we want to run the grub installer

    grub-install /dev/sd
    x --no-floppy (replace x with your partition letter, ONLY THE LETTER)

    Reboot, you should only have ubuntu in the grub menu. Not to worry, it hasn't been deleted.
    Boot into ubuntu and then run sudo update-grub from the terminal to have it add your new windows 8 partition
    Hey, thanks so much for the detailed explanation! I'm going to try this later on. I downloaded the RTM Windows 8 Pro, but I dont want to use it until I can get rid of the watermark. (Anyway to get rid of it? I heard about a "demo" key to activate Windows)
      My System SpecsSystem Spec

  5. #5


    You can try this (Removes test mode watermark)
    Or you can try this (Removes a lot of watermarks all together)

    I'd try the second one first. If it doesn't work, well the methods were made for windows 7, but windows 7 and windows 8 are quite similar.
      My System SpecsSystem Spec

Dualbooting Windows 8 Pro. RTM & Ubuntu
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