Questions about the Unified Extensible Firmware Interface that finally replaced the BIOS on newer desktops and laptops with the release of Windows 8. UEFI is independent from CPU architectures and supports booting via UEFI with and without secure boot enabled as well as legacy booting via CSM.

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UEFI boot not working afte succesful install - Ubuntu 15.10

I am not able to UEFI boot a computer after a successful USB install of Ubuntu 15.10. I prepared the bootable USB with the newest version of Rufus, using GPT for UEFI mode. After a successful OS ...
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1answer
89 views

Installing Ubuntu 15.10 with Windows 10 in EFI mode on two harddrives

I have just bought a new computer with two hard drives and it came with Windows 10 pre-installed. I decided to install Kubuntu on the second hard drive. The weird thing that struck me from the ...
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1answer
65 views

new laptop ubuntu installation problem

I'm really a GNU/Linux newbie and tried to install ubuntu 15.04, 15.10 and even 16.04 on my new laptop with i5 6300hq gtx970m and windows installed with UEFI. Everytime I try to install ubuntu, I ...
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0answers
17 views

Dual Booting Issues

I just finished dual booting my computer (here's the specs) with Ubuntu 15.10. I keep running into an issue where I will select Ubuntu and Windows 10 from Grub and then a few different things can ...
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33 views

Ubuntu UEFI installed next to win10 goes black screen after grub- caused by motherboard change

As in question topic, I have problem that my kubuntu 15.10 goes black screen after grub. Firstly It is just black screen, but after some time monitors turn off, And everything I can do is to press ...
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2answers
55 views

Ubuntu live USB won't start with CSM disabled

I copied files from the ubuntu-15.10-desktop-amd64.iso to a FAT32 formated USB drive. When I boot on the USB and select Ubuntu live the startup get stuck at a black screen with the message Ignoring ...
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4answers
60 views

Ubuntu install grub

I have dell 5558 laptop with windows 8.1 pre-installed. I want to install ubuntu 14.04 alongside windows, so I downloaded the iso image. I then formatted my pendrive then using universal USB Installer ...
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1answer
152 views

Installing Ubuntu 14.03 with UEFI

I'm trying to install Ubuntu 14.03 on my new Odys Trendbook 12. It came with Win 10 pre-installed. My problem is that I don't have the option to disable Secure Boot in the UEFI Settings. I created a ...
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2answers
94 views

Why won't bless make rEFInd boot by default? [closed]

I'm in OS X. In the refind-install script, there's a bless command that is running, but doesn't seem to work: elif [[ "$TargetDir" != "/EFI/BOOT" ]] ; then bless --setBoot --folder ...
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1answer
65 views

Memtest86+ does not work on efi system. Is there an alternative way? [duplicate]

It shows "unknown command linux16" when I run memtest86+ on efi system.
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0answers
15 views

Need help RAID + UEFI + boot crash

I have a server in RAID 1 with Ubuntu 14.04 LTS. Because of UEFI I could not install boot in raid so I left the boot on one of the hard drive. The problem I have is that the HDD drive where the ...
1
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1answer
58 views

Slow Boot in Ubuntu 15.10 on Lenovo Y500

I am experiencing extremely slow boot times on my Ubuntu 15.10. It is a clean install over what used to be Windows 8.1 (with uefi). Startup ranges from a minute to a minute and a half, with about ...
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0answers
150 views

Dell inspiron 5558 UEFI dual boot problems

This is my second question here so again please forgive if I ask the obvious or duplicate a question. I know that there is a lot of threads on this topic but I seriously do not know which applies to ...
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0answers
73 views

Unable to boot into Ubuntu 15.10/Windows 10

I have been running Ubuntu 15.10 on my PC alongside windows 10 for about a month now. I am not a complete beginner but my knowledge is very limited. For the past 3 days I am unable to boot into Ubuntu ...
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2answers
526 views

Ubuntu 15.10 does not boot on Intel NUC6i3 with Samsung 950 Pro PCIe NVME SSD

I tried to installed Ubuntu 15.10 on the NUC6i3 using a Samsung 950 Pro PCIe NVME SSD. Booting USB drive in UEFI mode was possible and the system runs ok. Installation itself also without problem. ...
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2answers
165 views

I want to install Ubuntu and keep my Windows

yesterday I installed Ubuntu 15.10 on Windows 8.1, my BIOS was set to Legacy Boot mode like the following photo, in the installation process of Ubuntu I chose to install alongside my windows, but ...
2
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1answer
206 views

Ubuntu installation on Acer Aspire Cloudbook 11

Ubuntu installation on Acer Aspire Cloudbook 11 Installation required these steps: Download Ubuntu 14.04 ISO file from Ubuntu website. Create a “start-up disk” on a USB stick or SD card, 2GB+ (this ...
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1answer
146 views

Black screen after Grub2 menu with Live USB on Acer E15 with Windows 10

I just bought an Acer Aspire E15 (E5 573G-71L9) with an NVIDIA Geforce 940M, Intel Core i7-5500U processor, 15.6'' FHD LED LCD, and Windows 10 Home pre-installed. The default boot method is UEFI - ...
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0answers
48 views

Ubuntu/Grub Not leaving Boot Menu (Win 10)

I've scoured the internet trying to fix this. Browsed every possible solution from questions answered on this page but I simply can not remove ubuntu/grub fully from my PC. So, I originally started ...
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0answers
36 views

UEFI Installation — Unable to Find HDD

I am attempting to install Ubuntu on a HP Envy 15, my intention is to have this dual-bootable with the standard Windows 10 installation. So far, I have made the following progress: Created a ...
0
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1answer
58 views

UEFI mixup with previous windows 10 disk on Lenovo

I have a lenovo laptop that originally had one disk with windows 10 using UEFI. I decided to replace the HDD with an SSD. Additionally, I replaced my DVD-ROM with an adaptor and put my older windows ...
2
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2answers
139 views

Insalling Ubuntu 15.10 on MSi GS70 2QE [closed]

I have bought a new Laptop and I use Ubuntu for everything. I am planning to remove everything and install it(ubuntu) instead. As for Windows, I have some backup ISO thought in case. Can someone ...
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1answer
98 views

how to configure new disk for UEFI boot using grub2

I am using an ASUS N53J that is currently using MBR boot. I have enabled UEFI booting in the bios can can seem to boot USB drives that have been configured with gpt tables. Though I have not figured ...
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0answers
9 views

Device error, Buffersize 0

So guys, the image below basically shows: Unexpected return from initial red: Device error, buffersize 0 Failed to load image \EFI\ubuntu\grubx64.efi: Device Error This problem started to occur ...
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1answer
35 views

Where did GRUB go?

I recently installed WIndows ten alongside Ubuntu 14.04. After doing this, I used a LiveUSB to use Boot Repair and restore GRUB. After rebooting, GRUB appeared, and when I selected the Windows option, ...
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0answers
29 views

Windows Boot Manager fails to load with dual boot PC

I have a Lenovo 11e that came with Windows 10. I partitioned the hard drive and loaded Ubuntu. Initially Windows would not boot but I turned off secure boot and everything was fine until recently. Now ...
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2answers
189 views

Ubuntu not starting after suspend

I have an HP-compaq-15s-103tx laptop with duel booted Ubuntu 14.04 LTS and Windows 8.1 in UEFI Mode. Every time when I try to Start my laptop after doing 'suspend', It does not boot at all. i.e, ...
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2answers
108 views

`invalid signature` when trying to boot OSX's CLOVERX64.efi from GRUB

I’m trying to create a multiple boot situation using grub2. Please forgive me as I am fairly new at this. However, I feel like I am fairly close I am just missing the ability to boot from an EFI ...
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1answer
70 views

Ubuntu Grub/EFI won't boot - I really need help

I really need help, guys. I`m very desperate. I had a EFI partition with multiboot (Win10, Ubuntu, Kali) and then I wanted to reset my boot for some reason and formated it. Then everything went south. ...
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0answers
25 views

Ubuntu installed but will not boot - problem with grub

(warning: I am a noob) Hello, I have recently installed Ubuntu onto my Lenovo b570 laptop and when I boot up the computer, it tries to load ubuntu but gives me a black screen and moves on the the ...
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2answers
78 views

Dealing with ubuntu partitions for the first time [closed]

I have recently installed Ubuntu 14.04 by using a bootable usb flash drive. After installing the software gparted I see that I have the following partitions: For what I understood, the OS is ...
0
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1answer
52 views

Make Ubuntu Bootable USB UEFI Compatible

I have a full Ubuntu install on a USB that I keep on my keyring so I can have a portable, personal computer. However I cant boot from it on UEFI machines, even if secure boot is turned off. Is there ...
1
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1answer
32 views

Boot script issue after formatting computer [closed]

I am new to Linux, currently using Linux Mint. I enjoyed it so much that I decided to ditch Windows altogether. So I formatted my entire hard disk and installed Linux Mint. I got a warning during the ...
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0answers
33 views

GRUB2 Black screen after boot [duplicate]

I just did a fresh install of 15.10 server on my Dell Optiplex 790 and it's no longer booting correctly. I had no trouble booting with 14.04 LTS server but it seems that there's a problem with GRUB on ...
0
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1answer
164 views

How to boot from a DVD on a UEFI laptop with Linux [duplicate]

I've bought a Windows 8.1 Lenovo laptop last year. Then on July I upgraded to Windows 10. Yesterday I formated it and re-installed Windows 10, but it isn't activating. So I ran the Ubuntu live DVD and ...
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0answers
24 views

creating usb boot using winusb error

I'm using winusb to create a eufi win10 usb boot stick, but without luck. I'm getting the following error message: Installation failed ! Exit code: 256 Log: Formating device... Mounting... mount: ...
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0answers
29 views

Xorg doesn't detect graphic card in pure EFI boot

I'm trying to speed up the boot process in my iMac as much as possible. With Ubuntu 14.10 and kernel 3.16 I succeeded in booting the system by creating a small HFS+ partition, to be used as the ...
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0answers
40 views

Ubuntu 14 running as vmware/Windows-8 guest

In general, there seems to be little updated info. It can be that most people go for Virtualbox. I am still trying this approach because only Vmware can support physical disk partition(s) instead of ...
0
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1answer
143 views

Unable to install Ubuntu MATE 15.10 on Alienware 15; missing drive and confusing boot options

I'm able to boot into the LiveCD, and I theoretically could install it, but there are some issues. In both gparted in the Ubuntu MATE LiveCD and in Gparted Live, I cannot see my SSD (which has ...
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0answers
58 views

Ubuntu 12.04 not showing in boot menu after installing alongside with Ubuntu 14.04 and Windows 8.1

I know the question looks similar but I did not find any answer to my problem, hence posting it here. Thanks in advance for any help. I had Ubuntu 14.04 installed alongside Windows 8.1 and both ...
1
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1answer
152 views

Does Forcing UEFI Installation of Ubuntu risk making Windows 10 unbootable?

That is what the Ubuntu installation wizard says. I am using a Thinkpad X220. I upgraded from Windows 7, and then "reset" (is that just reformatting?) Windows 10. Here's an image: ...
2
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1answer
82 views

Using efibootmgr to make drive a permanent boot priority without re-ordering the whole boot order

I'm trying to write a script that runs at initramfs that uses efibootmgr to permanently set the highest boot priority without having to re-assign the boot order. efibootmgr -n 000A for example is ...
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0answers
47 views

Windows 10 boot options after boot-repair

I was forced to reinstall Windows 10 on my dual boot (with ubuntu) machine. However after using Boot-Repair I get three windows boot options. The whole grub menu list is below: Ubuntu Advanced opions ...
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2answers
130 views

Problem with EFI entry after update Ubuntu 14.04

I updated Ubuntu 14.04 (aptitude update, safe-upgrade). After that I checked EFI (efibootmgr -v) and found that EFI entry for Ubuntu is absent. I tried create new entry: efibootmgr -c -d /dev/sda -p ...
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2answers
118 views

EFI boot fix error

I have been trying to install Ubuntu 14.04 on my MacBook Pro 5,5. I have been following this tutorial to make it work :: http://www.makeuseof.com/tag/install-linux-macbook-pro/ There is a section of ...
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1answer
163 views

How to add Windows boot entry to GRUB or Ubuntu boot entry to Windows Boot Manager

I installed Ubuntu 15.10 on a 60GB SSD. Then, some weeks later, I installed Windows 10 on a separate 500GB HDD (Ubuntu deserves the SSD more than Windows!). Basically, my problem is that neither of ...
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3answers
797 views

How to fix Secure Boot error “Image failed to verify with *ACCESS DENIED*” on startup?

When I started up my machine this morning (I have Secure Boot and UEFI only enabled) I got this error (sorry for low quality image): What does it mean by Image failed to verify with *ACCESS ...
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1answer
149 views

Setting up dual boot on Lenovo yoga 2 pro

I'm trying to set up a dual boot on my yoga 2 pro running windows 10 (shipped with win8), trying to install ubuntu 14.04.3 I've disabled secure boot and fast boot in bios setup. When installing, I ...
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1answer
62 views

Windows 10 upgrade vanished my Ubuntu

Recently I upgraded my HP Stream 200-010 Mini Desktop from windows 8.1 to windows 10. Before the upgrade I installed Ubuntu 14.04 on an 80GB external hard drive connected with usb. For log in I always ...
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1answer
317 views

0.003006 ACPI: Unable to load the system description tables Acer F5-571

I have been trying to install Ubuntu on my Acer F5-571 with no success!.. when trying to install in UEFI mode i get a black screen when i select any option and when in legacy mode i get 0.003006 ACPI: ...