I want to install Ubuntu on one of my drives (specifically, ubuntu seems to be calling it /dev/sdb1). Ubuntu, however, wants to replace windows or partition it onto that drive. I do not want this, I want to dual boot from 2 different hard drives. There's also the other options section, but whenever I select my third drive it spits out some error message about no boot drive selected or something.

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    Welcome to Ask Ubuntu. I would suggest partitioning your drives as you want (using gparted from the install media) and then use 'something else' as your install option (pointing the installer to your ready partitions) and installing 'grub' to whichever drive you have selected in your BIOS settings. As for your error message, you'll get the most help when you exactly tell us the error message (editing your question and placing additional info there). Backup data first – guiverc Sep 1 '18 at 2:40
  • There's usually an option in the installer "Install Ubuntu alongside Windows". That's what you want – Sergiy Kolodyazhnyy Sep 1 '18 at 2:57
  • this is what I'm looking at right now, trying to use that last partition down there for Ubuntu but it gives me "no root file system is defined" – johns films Sep 1 '18 at 6:21
  • Nvm I figured it out, had to change the partition to primary and the mount point thing to /. Thanks. – johns films Sep 1 '18 at 6:28

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