Code: gksudo gedit /etc/grub.d/40_custom

Code: menuentry 'Remix OS' --class android-x86 { insmod part_gpt search --file --no-floppy --set=root /remix/system.img linux /remix/kernel root=/dev/ram0 androidboot.hardware=remix_x86_64 androidboot.selinux=permissive CMDLINE initrd /remix/initrd.img }

Code: sudo update-grub

Code: dd if=/dev/zero of=/remix/data.img bs=1M count=XXX mkfs.ext4 /remix/data.img

So, to install Remix OS on HDD, you will need Remix OS iso or img file and Ubuntu installed on PC.First of all, create folder called "remix" (without quotes) on / directory on Ubuntu.From the Remix ISO/IMG, put the following files in /remix:Make a directory /remix/data.There you go, Remix OS is now on HDD... But how to boot it? You have to add it into GRUB menu. To do this:Open terminal in ubuntu and type in:You'll be prompted for root password, type it in. Then you'll get gedit window with some texts in it. Add this code at the end of the text:Then, in terminal, run this command to update GRUB configuration:Again, type in root password and vuala, now you have Remix OS installed on HDD and it is available in GRUB menu. Rebooting should yield a menu in GRUB called Remix, which might work. The way I've done it here, Remix will share storage with Ubuntu, but will be unable to see the contents outside of /remix/data. If you prefer, you can pre-allocate space for Remix using an image for /data like so:(where XXX is how many megabytes you want data.img to be). An image is convenient for portability and backup purposes, so it's up to your preference. I prefer to use /remix/data over an image just because of the limited storage on my tablet.This is also pretty non-destructive. To remove Remix, just revert or remove /etc/grub.d/40_custom, run update-grub, and if you wish, delete /remix.