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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Can't boot ubuntu 13.10 after install Fedora 20 on a x86_64 EFI machine

I can't boot Ubuntu from gub menu after I install Fedora 20 (but I can boot Fedora and windows) error: can't find command 'linux' error: can't find command 'initrd' But I can boot from here Do ...
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1answer
36 views

Bios not working and cannot boot

I've got a problem after installing Ubuntu on an external drive with Windows 10 on my compute. My bios is not working anymore and I have a blank page. After the bios, if I don't ask it, it goes on ...
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0answers
21 views

Ubuntu 16.04 Installer Crashes Shortly After Partitioning Disk

I am trying to dual-boot Windows 10 Home and Ubuntu 16.04 LTS on a Lenovo G50-70 laptop. The computer used to have Windows 8.1 and Ubuntu 14.04 LTS installed as a dual-boot with EFI. I want to do a ...
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1answer
14 views

Dell Latitude E7240 not booting after upgrading to 16.04

After installing 16.04 from a USB stick, Laptop doesn't start anymore. The error message says No bootable devices found. I was warned during the installation that I could not continue if I don't ...
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0answers
10 views

Ubuntu live USB installing on Macbook pro 8.2

I have been having issues for the past 2 days trying to install Ubuntu 16.04 on my 2011 Macbook pro 15 inch (no dualboot with OSX). I wanted to turn it as a Linux only machine. Long story short, I ...
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0answers
20 views

Can't boot into Windows, Xubuntu boots with error — Xubuntu 16.04 dual-boot (UEFI, Secure boot), Windows 10

I installed Xubuntu 16.04 from a Live USB onto a system containing Windows 10. Grub offers me the choice of booting into Xubuntu or Windows, as expected. As long as I started only Xubuntu, this ...
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0answers
27 views

Problem booting OS from a pen drive [on hold]

i am here with a problem that isn't of ubuntu, and i know this isn't the best site to talk about another OS but i think you could help me with this problem, because i believe this can happen too with ...
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0answers
42 views

Downgrading to Ubuntu 14.04: grub-efi-amd64-signed package failed to install into /target/

I had originally installed Ubuntu 16.04 on a brand new machine but after realizing that nVidia CUDA toolkit is not yet available I decided to downgrade to the previous LTS release. I did this by ...
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1answer
30 views

16.04 new installation gives grub-efi-amd64-signed failed installation /target/ ubuntu 16.04 at the end

I am installing ubuntu 16.04 lts in a Intel NUC computer with uefi enable. I am using a SSD from another computer. During the installation i choode erase the disk and make a new full install. At the ...
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1answer
53 views

VirtualBox Ubuntu guest from real partition image boots into emergency mode, can't get to login screen

I've got a dual boot system on my disk: Windows 10 64-bit: main OS Ubuntu 64-bit: secondary OS I installed VirtualBox; I'm trying to use my real Linux partition as a Virtual Machine using Windows ...
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1answer
46 views

Dual-booting Windows 10 and Ubuntu 16.04 on different drives with UEFI

I have a UEFI system and two drives: one with Windows 10 installed( and with a lot of stuff on it, so I'd rather not have to reinstall windows) and one on which I'd like to install Ubuntu. At first ...
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2answers
46 views

Can't boot to windows 10 after installing

i have ubuntu 16.04 installed and i wanted to install Windows 10. I installed it and it skipped the grub and went straight to Windows 10, i grabbed a copy of boot-repair usb disk and tried to run ...
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0answers
21 views

low disk space on brand new hd and ssd errors while install ubuntu 14 or 16

brand new pc. even swapped out hd with ssd (250gb). Have the uefi set to secure boot off, no fast boot, csm (legacy as i have seen it mentioned) is disabled, checked disk for errors on usb to install ...
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2answers
3k views

Why disabling “Secure Boot” is enforced policy when installing 3rd party modules

When installing 16.04, I was asked to turn off "Secure Boot" if I wanted to install 3rd party modules/drivers. I did not comply. And when I installed manually the only 3rd party drivers I use (bcmwl-...
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1answer
56 views

Persistent Linux USB won't boot… getting weird error screens, maybe related to UEFI

To start with here are my specs: 970 FTW edition i5 2550k 8 gigs of DDR3 1600 mhz MSI Z77A-G41 250 GB SSD for OS and apps 150 GB SSD for apps 3 TB 5400 rpm for storage 500 GB 7200 rpm ...
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0answers
40 views

GRUB not showing when dual booting Windows 10 and Ubuntu 16.04

I have just upgraded from 15.10 to 16.04, where 15.10 dual booted with Windows 10. However, now GRUB does not show, and the system goes directly to Windows. Last time I installed Ubuntu 15.10, I had ...
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2answers
1k views

Does this answer work for UEFI computers?

One of my most popular answers is instructions on how to repair grub. Over time, others have contributed bug fixes to the answer. A recent comment, though, made me wonder if it works on newer UEFI ...
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0answers
45 views

Ubuntu Gnome 16.04 will not boot after making dumb changes to BIOS settings

I installed Ubuntu Gnome 16.04 after recently buying a Thinkpad Yoga 11e and it worked great when first installed. Then after I tried charging it, the screen went all checker-board/ static-y on me. I ...
0
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1answer
29 views

Ubuntu boot problems on Dell XPS 13 after replacement of motherboard

Background: I recently had a spill that damaged my Dell XPS 13 Developer Edition, which was preinstalled with Ubuntu 16.04. My motherboard has been replaced. I removed the SSD before repair; now I've ...
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0answers
11 views

Problem installing Ubuntu Studio to a GT80S Titan with 950 Pros in RAID 0

I used Rufus to write a bootable USB Drive. Rufus configuration: As for "Partition scheme and target system types": I both tried "I tried both the MBR partition scheme for BIOS or UEFI" and "GPT ...
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0answers
15 views

Nvidia 361 with Secure Boot enabled on Ubuntu 16.04 [duplicate]

Does any one know of any ways one could have Secure Boot enabled and still be able to get past the log in screen?
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0answers
34 views

Can't choose other boot devices than ubuntu drive

2 hard drives. On my HDD are my personal data, on my SSD is unbuntu 16.04; Lenovo Thinkpad E330, UEFI BIOS 1.14; it is the first time I installed ubuntu - Hello, My problem is twofold: 1) I ...
0
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1answer
244 views

Ubuntu 14.04 doesn't boot grub prompt

I have Ubuntu 14.04 (Trusty Tahr) installed on my laptop. It was working fine, but then I occidentally deleted the first partition which has the EFI stuff which is mounted to /boot/efi by default. ...
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0answers
31 views

16.04 Installer crashes on new Ultrabook

I recently got a Asus Zenbook UX303B (or "303UB"). I installed Mint at first, but decided to migrate to Ubuntu after problems with the screen, the touchpad, and the touchscreen. On Ubuntu Live USB, ...
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0answers
23 views

Disk failing - Kernel panic

I posted a couple of days ago about SSD issues which keep it failing. FSCK usually helped, but not now as I face kernel panic. When I boot into Ubuntu, I see grub, I can choose between the kernels. ...
3
votes
1answer
48 views

How to safely remove Windows from EFI (and GRUB) [duplicate]

I can find a lot of information on the opposite (removing Ubuntu from a dual boot) but not how to remove Windows from a dual boot. I did this once before and then I just deleted the whole EFI ...
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1answer
41 views

Having trouble installing ubuntu

I know it has been asked before but I had trouble relating to my options during my installation so I felt the need to ask again. I'm on a Windows 8.1 pre-installed laptop that has been upgraded to ...
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0answers
192 views

How to update RAM amount, after changing in BIOS?

In my Lenovo x1 carbon 2015 UEFI/BIOS I can choose between 256 and 512 MB GPU ram. If I choose 512, it will take 256 MB from the normal ram, giving me only 7,7 GB left. After changing this back to ...
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0answers
53 views

Dual boot Windows 10 & Ubuntu 16.04 — blank purple screen of death when booting Windows!

This is on my Dell XPS 9550 laptop with 512GB Samsung P951 NVMe SSD. I first installed Windows 10 and it boot up just fine. Then I shrinked the volume for Ubuntu and installed it via Live USB ("...
0
votes
1answer
658 views

Want To Install Windows 10 and Ubuntu 15.04 from Scratch In UEFI Mode

I am new to ubuntu community.I have experimented a lot with windows now I want to try ubuntu. I have deleted everything on my HDD using Gparted.(yeah,i knw foolish of me).I have 750GB HDD on a Samsung ...
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votes
2answers
9k views

No bootable device error message on UEFI after installation

I have a new Acer Aspire E13 (ES1-311-P1D5) notebook. I tried to install Ubuntu 14.10 with disabled Secure Boot but enabled UEFI. After the installation I couldn't bot. I just got "No Bootable Device"....
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4answers
6k views

Ubuntu LiveUSB doesn't recognize my Windows 8 installation

I have a laptop with UEFI (secure boot disabled) with Windows 8. I am trying to install Ubuntu 12.10 or 12.04 along side Windows 8 on my primary hard drive, which uses GPT. I am only presented with ...
1
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1answer
4k views

file error /boot/grub/i386-pc/normal.mod trying to repair boot, live dvd install probleml

I have seen that there are a lot of threads about this problem. I had Windows 8 installed on my series 3 samsung i5 computer and I tried to install ubuntu 13.04. This is what I did: Because of the ...
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0answers
15 views

Grub Console appears - hey from Bios Boot Menu Works

I installed Xubuntu 16.04 on a 2nd Hard Disk (not partitioned) and configured the BIOS to automatically boot from it. The problem is, that the automatic boot starts the Grub console instead of the ...
0
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3answers
5k views

How do I install (to dual-boot) Ubuntu on this UEFI MSI GE40 2OC-218USK laptop?

I have a GE40 2OC-218USK laptop. I am trying to repartition the hard drive to have it dual boot Ubuntu and Windows 8. Nothing but endless problems. I've been progressively turning more and more ...
1
vote
1answer
33 views

Add Ubuntu EFI DB and PK back into UEFI

I reset my bios and now my Ubuntu 16.04 disk wont book because it can't find the Ubuntu secure boot keys. How can I add these back into my UEFI so it will boot? When I try to boot I get a message: "...
0
votes
1answer
27 views

Removed UEFI partition, how do I fix a new one?

I just upgraded my XPS 13 laptop from Ubuntu 14.04 to 16.04. I wanted to use full disc encryption, so I chose to let the installer delete everything and install in an encrypted LVM. My laptop show me ...
0
votes
1answer
28 views

I have two Ubuntu boot entries, and when I try to remove one, it automatically comes back

I'm currently dual-booting Windows and Ubuntu on a UEFI system. When I run: "sudo efibootmgr -v" the output is as follows: BootCurrent: 0000 Timeout: 0 seconds BootOrder: 0002,0003,0004,0006,003A,...
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votes
2answers
6k views

GPT partition table problem: Windows 7 and Ubuntu dual boot

I hope you guys will help me get through this situation I have gotten myself into. I bought a new samsung ultra book running windows 8. I knew going into the purchase that I wanted to ditch windows ...
3
votes
2answers
10k views

Can't boot a live usb .iso in UEFI mode on Lenovo Edge-15 laptop

I was trying to install Gentoo on my laptop Lenovo Edge-15, but I'm having problems booting a live usb .iso in UEFI mode. I then tried to install Ubuntu, Arch, and Fedora, and seem to be having the ...
0
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0answers
23 views

error invalid arch-independent elf magic - same error on HDD, Live 14.04 USB, and Boot-Repair Live USB

Okay, this question has been asked a lot but as far as I can tell I am the first person to get the same error while booting from live USB's. I installed the latest version of 14.04 onto an HDD. On ...
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vote
2answers
453 views

Ubuntu boots only out of installer: All boot options are tried [duplicate]

I have Ativ 9 Lite, on which I have installed the Ubuntu (Gnome) 14.04 daily. I after I complete the install and restart using the option offered at the end of the installation procedure, Ubuntu ...
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2answers
46 views

Does Ubuntu need this EFI partition?

I'm trying to migrate my system to a SSD, and there's this 512mb EFI partition that's giving me trouble. Is this thing a leftover from Windows 8? Does Ubuntu need it to function properly? I'm not ...
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0answers
22 views

Boot Ubuntu from external drive.

I have been trying for a week to install (not live cd) linux Ubuntu on an external drive. Please help me, i've been searching the Internet for days. Before i ask my question, I am totally new to ...
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2answers
18k views

“This computer currently has no detected operating systems.”- Ubuntu 14.04 install Windows 8.1

I tried to install Ubuntu alongside windows 8.1. I disabled secure boot and made sure UEFI was enabled and moved the DVD above Windows Boot manager in the boot order. But the Ubuntu installation still ...
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0answers
145 views

Ubuntu 16.04 LTS live USB stops working after initial software update

*Afterthought: with 16GB to work with, does it make more sense to just install full Ubuntu onto the USB, instead of running live with persistent storage? Steps to replicate my problem: From Ubuntu ...
0
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1answer
39 views

Ubuntu doesn't boot after installation even with boot-repair

I've just installed Ubuntu without any errors, but it won't boot. It skips past HDD in the boot order and goes to the next one. I tried to do boot-repair as it is explained here: Ubuntu doesn't ...
0
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0answers
35 views

UEFI - Ubuntu Live USB Hard to boot, can't format partitions

I know other people has asked about this before -because i have tried on those solutions and read those answers- but still i ask because none have worked for me. I'm using a a computer made with the ...