[Wlug] UEFI Blues

Randall Mason clashthebunny at gmail.com
Fri Mar 25 10:15:59 EDT 2016

You have turned off secure boot, right?  Which OS is working right now?
Can you run grub manually from the UEFI prompt?  Can you get to the UEFI
prompt?  Are you trying to install Windows second after a successful Linux

Randall Mason
clashthebunny at gmail.com

On Fri, Mar 25, 2016 at 9:10 AM, Richard Klein <rich at richardklein.org>

> Have you considered picking one OS, then running the other in a virtual
> machine?
> On Fri, Mar 25, 2016 at 9:54 AM, John Stoffel <john at stoffel.org> wrote:
>> Gary> I used to build PCs for myself, family and friends as a side
>> Gary> hobby many moons back but as it became more of a headache I fell
>> Gary> out of it for the most part. But recently I decided to replace
>> Gary> the PC I have had since 2007 even though it was working fine for
>> Gary> my needs. I really wanted an SSD drive, USB 3.0 and less power
>> Gary> consumption.
>> Gary> So all the headaches immediately returned and I remembered why I
>> don't
>> Gary> like to build these any more.
>> Gary> I was able to get the hardware issues I encountered resolved,
>> Gary> but them I was hit with the UEFI problem when trying to install
>> Gary> and dual-boot Windows 10 and Linux Mint.
>> You really really really need to give more details here, otherwise no
>> one will be able to help you.
>> For example, can you install and boot linux Mint by itself without any
>> problems on this board?
>> I assume you can do the same with Windows 10 as well, right?
>> So did you install Win10 first, then shrink it and install the new
>> bootloader to let you choose between Win10 and Mint?  But it broke
>> both I suspect.
>> Gary> I'm finding lots of help pages but none have worked for
>> Gary> me. Maybe because I have a newer MB (Gigabyte GA-Z170MX with an
>> Gary> Intel I5 6400).
>> Gary> So I wonder without burdening anyone for specific instructions,
>> Gary> can anyone provide any general thoughts or guidelines regarding
>> Gary> UEFI, Windows 10 and Linux?
>> Check with your vendor for an updated BIOS.  Some have bugs where they
>> have locked things down too much, and don't provide a good way around
>> it as I recall.  Haven't had to make this leap myself yet...
>> Gary> I'm thinking it might be impossible to dual-boot with my setup but I
>> Gary> hope not.
>> Can't tell really, since you don't give any details.  I'd say it's
>> possible, but you might need to tweak your UEFI BIOS to allow
>> non-signed keys to boot.
>> Have you looked at ...uum.... Mathew Wilcox?  He's the Linux EUFI
>> maintainer and has a blog out there on stuff like this.  Oh wait, it's
>> Mathew Garret.  Take a look at his blog:
>> https://mjg59.dreamwidth.org
>> It might have some pointers.
>> But please, more details would help us help you.
>> John
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