Dual-boot Ubuntu w/ Windows 10 Problem

by emeraldwarrior58   Last Updated February 20, 2018 02:02 AM

I recently tried to dual-boot Ubuntu on my Windows 10 PC. I had done the same thing a couple years back on a Chromebook with an xfce distro. This time, however, I failed, and even tried multiple solutions offered on this forum.

So here's the story:

I freed up about 40GB of drive space in a new partition of my hard drive. Then I wrote the Ubuntu 16.04 LTS iso image onto a 16GB USB stick using the Rufus tool. I have a GPT partitioned hard drive so I used the GPT UEFI option when writing onto the stick.

I restarted my PC and booted up using the USB and text on a black screen appeared:

[     0.229830] platform MSFT0101:00: failed to claim resource 1
[     0.229835] acpi MSFT0101:00: platform device creation failed: -16
[     7.757313] sd 2:0:0:0: [sda] No Caching mode page found
[     7.757333] sd 2:0:0:0: [sda] Assuming drive cache: write through

...and then it booted into GRUB. I choose "install Ubuntu". Everything seemed fine. I went through the installation process and restarted when it told me to. I've read and seen videos that my PC should default boot straight into GRUB where I should have the option to load Ubuntu or boot Windows instead. However, it booted regularly right into Windows.

So, I scoured forums for an answer to the problem. Some people advised to change the boot order in the BIOS, but to no avail of mine. I stumbled upon changing my boot mode from UEFI to Legacy. After restarting, my PC booted up Ubuntu! From what I can tell, Ubuntu installed on Legacy instead of UEFI. I entered the GRUB after rebooting again, but the option to boot Windows wasn't there. I guess that's because Ubuntu installed onto Legacy and Windows is on UEFI. Also, when booting into my installed Ubuntu, a black screen, again, briefly appeared with the text...

[     0.229830] platform MSFT0101:00: failed to claim resource 1
[     0.229835] acpi MSFT0101:00: platform device creation failed: -16
[     7.757313] sd 2:0:0:0: [sda] No Caching mode page found
[     7.757333] sd 2:0:0:0: [sda] Assuming drive cache: write through

...then went to to the login screen. I guess I kinda succeeded, but having to go into the BIOS and switch between UEFI and Legacy everytime I go back and forth is a little annoying.

Any idea on what is going wrong?

(My PC is an Acer Aspire R5-571T with a 7th Gen Intel Core i5 with 8GB of RAM and Windows 10 preinstalled.)

EDIT: I solved my issue by entering the BIOS and manually adding GRUB to the boot option. Turns out Secure Boot was blocking Ubuntu from being an option to boot into.



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