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I've been trying to setup a dual boot dell xps 15 with both windows 10 and ubuntu 16.04. I purchased the computer recently, and I am using the official USB stick from canonical to install it. I've followed this guide step by step, using the section 'If you have a OEM-preinstalled copy of Windows 8 or later':

How to use manual partitioning during installation?

I am able to make it up to the final step, but when I click the install now button I am immediately hit with errno5 Input/Output, which recommends I clean my CD (Which I'm not using).

I should also mention that I've turned off Secure Boot in the UEFI options, and switched my computer to AHCI mode. I did this to circumvent the problem of the ubuntu installer not being able to see the free, unallocated space I made for it in my storage (it would give the error "Ubuntu needs 8.4 GB to install, you have 8.2 GB).

Thanks in advance to whomever responds to this!

Community
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Hamilton
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  • You need to be installing in UEFI boot mode. But how large are you making / (root) partition. With new larger drives I suggest 25GB if saving data in separate /home or using a shared NTFS data partition for most data. Otherwise even larger /. Dell threads: http://ubuntuforums.org/showthread.php?t=2317843 Dell Xps 15 9550 Ubuntu 15.10 on new Infinity display (i7 6gen 16gbr UHD 4k touch) post 272 says 16.04 good http://ubuntuforums.org/showthread.php?t=2301071 – oldfred Sep 17 '16 at 14:26
  • Thanks for your response! I am booting in UEFI mode, only with the secureboot option turned off. The root partition is 110 GB while the swap is 15 GB, which I figure should be big enough :) – Hamilton Sep 17 '16 at 22:24

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Update:

I was able to solve the problem. What I did was to update the BIOS drivers to the most recent version, reinstall Ubuntu 16.04.1 to the USB, and follow the directions in the https://ubuntuforums.org/showthread.php?t=2317843 thread. Hope this helps someone!

Hamilton
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