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 access OS selection screen or Windows files form Ubuntu

I have installed Ubuntu 15.10 and Windows 10 successfully on my laptop. Earlier I was given a choice to choose which OS to load via gnu grub. I remember I accidently clicked some buttons (then it went ...
2
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0answers
9 views

How to Dual Boot Windows 10 (UEFI) with encrypted LVM Kubuntu 16.04 on 2nd HDD

I currently have Windows 10 (upgraded from Windows 8 originally installed on machine) running on a HP Envy 17 laptop booting in UEFI mode. The laptop comes with a 2nd hard drive bay, and I would like ...
1
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0answers
13 views

Installing Ubuntu on Intel NUC: “the partition table format in use on your disks normally requires you to create a separate”

I'm trying to install Ubuntu on an Intel NUC, and I'm getting the following error message: "The partition table format in use on your disks normally requires you to create a separate partition for ...
1
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0answers
23 views

windows 10 not bootable after ubuntu 16

I installed Ubuntu 16.04 LTS along side Windows 10. Now when when I boot the sysytem, only Ubuntu is bootable. There appears a Windows option but it fails to boot when selected. It shows the ...
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2answers
21 views

How to set grub from second Linux distribution as default in UEFI boot?

I’m dual booting two Ubuntu Linux distributions. There was made only one boot entry for both of them: Boot000A* ubuntu Since the second one (not often used) was installed after my primary distro (...
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0answers
20 views

Ubuntu 16.04 & 2016 Razer Blade 14" Display Issues

For starters, I am quite new to Ubuntu. I had to do what to me seemed like a fair amount of work to get Ubuntu to work on my system. As of right now, it is working seemingly fine. There are a few ...
1
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1answer
20 views

Unnecessary entries in Grub2 Boot Menu

I just finished repairing Grub2 after a SSD-to-SSD clone. Now when I boot up I see the Grub boot menu, but I see several entries I hadn't seen before the clone. I've tried booting Ubuntu and Windows ...
0
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2answers
63 views

can't boot due to Shim UEFI key management tool

I have Toshiba laptop Portege Z930, core i7 with Ubuntu 16.04 (amd64) and Win 8 dual boot. During today's software update in Ubuntu the system hangs on. After reboot I see grub shell. I boot the ...
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0answers
19 views

Dual Boot Windows & Ubuntu on HP 255 Laptop

Another foray into dual booting - this time for my sister's laptop to remove the horrendous Windoze 8.x experiment and hopefully enlighten her with a quick Ubuntu experience and a fallback to Windoze ...
0
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1answer
21 views

Installing Ubuntu 16.04 - Out of Range issue (in Skylake)

I'm trying to install Ubuntu Studio in a brand new machine. It has UEFI and Grub2. Problem is that after a Ubuntu (Studio) splash screen I get a "signal out of range" error. And all I can do is press ...
1
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0answers
42 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 ...
1
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2answers
22 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 ...
0
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0answers
26 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 ...
0
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0answers
12 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 ...
0
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2answers
51 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
29 views

Problem booting OS from a pen drive [closed]

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 ...
0
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0answers
52 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 ...
0
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1answer
56 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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0answers
23 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 ...
1
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1answer
58 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 ...
0
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1answer
59 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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0answers
49 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 ...
0
votes
1answer
60 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
47 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 ...
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2answers
48 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 ...
0
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0answers
12 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 ...
0
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1answer
31 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
16 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
37 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 ...
1
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0answers
36 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, ...
0
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0answers
24 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
55 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 ...
0
votes
0answers
196 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 ...
1
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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 ...
4
votes
0answers
58 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
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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0answers
24 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 ...
0
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1answer
33 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 ...
1
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2answers
47 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 ...
0
votes
0answers
23 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 ...
1
vote
1answer
40 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
30 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,...
0
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0answers
39 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 ...
0
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0answers
11 views

Ubuntu cannot boot through logical UEFI partition. But boots fine through primary partition on external drive

recently I installed Ubuntu on UEFI mode to see how it boots. I however, could not get it to boot through UEFI on a Logical EFI (a small FAT32 partition with the boot flag on) partition on the HDD. In ...
0
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0answers
25 views

Recover My Windows partitions ,data and operating system(windows 10) from live USB Ubuntu 14.04 LTS on my GPT(UEFI) kind of HP Notebook

Please solve my problem. Originally I had windows 10 with 4 drives (C: D: E: F:). Now after trying to install Ubuntu I have only a single partition of 930 GB and I am unable to see my data in it. I ...
0
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0answers
22 views

Grub not installing in uefi mode

I have windows 10 installed and i want to dual boot ubuntu with it. I have the bios in uefi mode and my ubuntu live usb is in uefi mode and i know because i get the black grub looking menu instead of ...
0
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2answers
62 views

Ubuntu not booting UEFI

I have windows 10 installed and I have just installed Ubuntu. When installing I chose the "install alongside Windows boot manager" option and everything seems to install fine. No errors. But there is ...
0
votes
2answers
40 views

Ubuntu messed up my Windows 10 boot

I booted a Ubuntu 16.04 Live USB and installed onto an external HDD. In the partitioning step I had it install grub to the external HDD, not my internal Windows 10 HDD. But when I rebooted the ...
0
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1answer
31 views

How can I remove ALL grub2 files and reinstall them? In other words, reset grub2?

I have been using Grub-Customizer ever since I've had Ubuntu, but I've noticed it having more and more issues lately. About two weeks ago, I reordered the grub entries and put them in sub-menus using ...
1
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1answer
127 views

Disable secure boot y/n?

I have windows 10 installed. Im trying to install ubuntu. Should i turn off secure boot or leave it on? What does it do?