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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73 views

disabling secure boot - no OS works, F2 or F10 don't work

Do you know if forcibly formatting all of the partitions of a windows-native computer might kill the boot-secure ? Long story short: I am trying to make my computer a dual-boot windows-linux, but ...
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1answer
53 views

I want to remove windows 8 and keep ubuntu 15.04 [duplicate]

I have been testing out ubuntu for a few months now and now I decided to keep it on my system (It's a dual boot with windows 8.1). My question is : If I remove windows 8.1 from my system, will my BIOS ...
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0answers
53 views

Boot-Repair not able to repair with GPT boot partition

I am running Ubuntu 14.04 LiveUSB to try to repair GRUB on a HDD (through USB). I tried to run Boot-Repair but got this message: GPT detected. Please create a BIOS-Boot partition (>1MB, unformatted ...
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1answer
703 views

How to add ubuntu to windows 10 boot manager, but it will be in another hard drive? [closed]

I want it to be look like this: I have an HDD and an SSD in my PC, I want to install Ubuntu to SSD, I have windows on HDD. I want to be able to boot ubuntu from the windows 10 uefi boot manager. ...
2
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1answer
324 views

Can't boot to my usb to install Ubuntu

Recently I deleted Ubuntu gnome desktop from my new laptop dual booting with windows 8 and also repaired the start up so that it would go to windows automatically. However now I want to install Ubuntu ...
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0answers
24 views

Can't install 15.10 on my HP Spectre with Windows 8.1 [duplicate]

Hi everyone im new to installing Linux but have several times installed various versions of Windows and a couple IOS's but never installed linux. I have literally been going at it since like 11:30 ...
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0answers
44 views

Failed to install grub fatal error, after xubuntu finished

I was trying to fully install xubuntu on my laptop. After i selected "erase disk and install xubuntu", it was working fine and it almost completed, until i got a fatal error saying that grub could not ...
5
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1answer
1k views

Ubuntu won't boot after upgrade from 15.04 to 15.10

After upgrading my ubuntu server 15.04 to 15.10, it won't boot anymore. After starting the machine, it enters the BIOS. Selecting the linux drive to boot in UEFI mode just returns me back to the BIOS ...
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0answers
29 views

GRUB2 doesn't show on boot after running Software Updater (UEFI) (15.04)

So, a little background, a few months ago I decided to dual-boot my Windows 8 (not 8.1) Toshiba Satellite laptop with Ubuntu 15.04, having done it successfully, and since then I've been alternating ...
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2answers
145 views

Installing ubuntu on UEFI system after deleting EFI partition

I have a Lenovo G580(20157) laptop that didn't come with any preinstalled OS. I used win 7 until now and gradually upgraded to windows 8 and then to win 10. I also updated my bios drivers. My bios is ...
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0answers
110 views

Missing Operating System!

ı have macbookPro Mid2012 with yosmeite osx and win7 with bottcamp. yesterday with live ubuntu usb ı startedn my mac and click install ubuntu 14.04.3. lts icon on ubuntu after that ı canceled ...
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0answers
440 views

Error GNU GRUB (Minimal BASH-like line editing is supported)

So I was trying to install Ubuntu 15.04 alongside Windows 10. I've already disabled fast startup and secure boot, and then created live usb with the iso installation file.. When I boot from USB ...
2
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2answers
385 views

No “efi” option during manual disk partitions

I was trying to install kubuntu 15.10 with the official image(downloaded from kubuntu.org) from live-usb, created with usb-creator-kde. The notebook had already installed windows 8 in uefi mode. I ...
0
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1answer
525 views

Ubuntu 15.10 on MacBook Pro

I'm looking to test (or, with luck, to install) Ubuntu 15.10 from live USB on a MacBook Pro 8,2 with Radeon HD 6770M. Currently, the machine has installed Ubuntu 15.04 with Radeon disabled in grub and ...
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2answers
3k views

Failed Ubuntu 15.10 installation on UEFI system, how to report this bug [duplicate]

Yesterday I had to try installation of new Ubuntu 15.10 more than 5 times. I have noticed methods that give me unbootable system on reboot after installation. It says it cannot detect UEFI partition ...
0
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1answer
453 views

Ubuntu GNOME 15.10 installation problem

I want to install ubuntu GNOME 15.10 on my computer from USB, but th installer do not detect the drives. When the USB drive is connected, the UEFI do not display my drives as bootable devices. I have ...
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0answers
31 views

Running Ubuntu 14.04 off of portable hard disk on different computers

I currently have Ubuntu 14.04 running off of a MAXTOR PATA disk with a PATA to USB casing. I installed and successfully booted from the laptop I was using to install from. I removed the hard disk from ...
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1answer
374 views

Windows 10 not booting after installing Ubuntu 15.04

I was using Windows 10 in legacy Bios mode. Yesterday I have tried installing Ubuntu 15.04 and the Installation was successful. I have installed Ubuntu in Seperate Partition. I can boot in to Ubuntu, ...
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0answers
37 views

Dual boot windows 10 and Vivid Vervet keyboard backlight stopped working again [samsung np900x3c]

TL;DR: dual boot win10 and ubuntu 15.04 - keyboard backlight on my samsung np900x3c laptop not working. I've been dual booting Utopic Unicorn along with windows 8 with great success for a long time. ...
1
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1answer
81 views

Getting “Permission denied” errors from efibootmgr

Well, im a new linux user, i recently made a dual boot (between Windows 8.1 and Ubuntu) but when I restarted the PC I saw BIOS POST screen (you know, that screen with "press to enter boot, press to ...
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0answers
53 views

Asus N56J locked bios prevents me from installing ubuntu

Ive been trying to install ubuntu on my laptop for hours via disabling the secure boot option in bios with out success. Ive been getting the error 0xc000007b time and time again. ive tried the shift ...
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0answers
271 views

Ubuntu 15.04 installation gets stuck at loading screen

When I boot from the USB stick with Ubuntu 15.04 on it, I'm offered with the choice of trying Ubuntu or installing it directly. Neither of those work as in I don't get past the loading screen. Before ...
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0answers
28 views

Installation and Backup

I have been using Ubuntu now for a while (12.04.5 LTS on a previous UEFI Win 8 128 GB Samsung Ultrabook). At first I wanted to install eOS (Luna and Freya), this fails everytime. My question is now : ...
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3answers
281 views

Grub Dual boot Windows 10 Ubuntu 14.04 LTS trouble to load Windows from Grub

I installed Windows 10 on an Acer V5-472-6419 laptop. It created about 4 other partitions. After that I installed Ubuntu 14.04 LTS. I disabled fast startup in Windows 10. When I choose Windows Boot ...
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2answers
103 views

Should I install Ubuntu in UEFI mode?

So I've read newer computers who ship with windows 8 and 10 are using UEFI. I want to dual boot Windows 10 and Ubuntu, I'm using a computer with Windows 10 installed but it originally had Windows 7, ...
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1answer
96 views

UEFI is not new, but how come my Asus X453 could install and run CentOS7 dual boot, but not Ubuntu 15.04 which is what I want?

Newish laptop Asus X453 with UEFI and Windows 8.1. Tried to install Ubuntu 15.04 64 bit, installation was fine, but it wouldn't run. I'm not quite ready to ditch Windows completely, so I tried other ...
0
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1answer
120 views

delete ubuntu entry in boot device options in bios?

i had installed ubuntu 15.0.4 on an external hard drive. My pc booted up windows automatically although I could boot into ubuntu by going in the boot device menu and selecting the Ubuntu("somecode") ...
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3answers
108 views

GRUB Screen disappeared

I have a dual boot Windows/Ubuntu laptop and I recently upgraded to Windows 10 (might be relevant). After a month or so, the GRUB menu stopped appearing out of the blue. Despite running boot-repair ...
0
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1answer
218 views

the attempt to mount a filesystem with type ext4 failed

newbie to linux/ubuntu enviorment, trying to install ubuntu but during the installation processing after selecting the region then it propts an error "the attempt to mount a filesystem with type ext4 ...
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0answers
76 views

How to change Grub to default boot loader instead of Windows

I'm having an issue with Grub. I installed a dual boot of Ubuntu on my Windows 8.1 factory installed Hp Envy computer, but when I turn on my computer it skips Grub and goes straight into Windows 8.1 . ...
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0answers
55 views

Ubuntu Booting on Desktop but not HP Envy Laptop

I have installed Ubuntu onto an external hard drive; it is the only operating system on it. I can boot it from my desktop with no problem, Grub shows up; I didn't even need to change the boot order. ...
0
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1answer
349 views

What should I do to get Ubuntu dual-boot with Windows 10 on this Toshiba laptop?

I've tried several approaches and it still boots directly to Windows 10. It is a Toshiba Satellite Radius L15W-B1208X with Windows 10 the original OS. I read and tried to follow all prerequisite ...
0
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2answers
39 views

Unable to resize Win partition under Ubuntu

I know my problem sounds pretty common but all advices I found on the internet did not worked for me. I try to resize partition and I cant lower its size.My previous SSD disk failed and I need to ...
0
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1answer
327 views

Can't get to Grub (UEFI) on Sony VAIO Ubuntu 15.04 Dual Boot

Okay. I've been trying to get GRUB to load for a long time (bordering on two years of attempts). I have windows 7 on a Sony VAIO (SVS151190X) and I am attempting to boot Ubuntu 15.04 through GRUB, but ...
2
votes
1answer
106 views

Dual boot: Grub Menu no longer showing

Approximately a month ago my laptop stopped showing the Grub menu on startup. I had used this guide http://ubuntuforums.org/showthread.php?t=2227580 to setup my dual boot. bcdedit /set "{bootmgr}" ...
0
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1answer
48 views

How to get a working UEFI / GRUB Boot - install process goes wrong

I have been experiencing great difficulty in simply getting pinguy ,mint or any of the other ubuntu based distros I have tried to complete the install process. I have read around the issue but the ...
2
votes
2answers
555 views

Can't install Ubuntu 14.04.3 LTS on Windows 10

I have an Asus X552EA-SX006D which I've upgraded(clean installed with) to Windows 10. The first time I tried to install ubuntu on the system, a GRUB installation error occurred, probably due ...
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0answers
36 views

Install Ubuntu in a PC with pre-installed Windows using a new drive (still being able to put the old drive with Windows back)

I have a laptop (say, Laptop1) with an hard drive (say hdd1) on which Windows 8.1 is pre-installed (with UEFI, I'm told) -- and there is a dual boot with Kubuntu 15.04. I also have another drive ...
2
votes
1answer
142 views

Difficulty dual-booting Ubuntu and Windows 10 with UEFI

I've been messing around all day trying do dual-boot Ubuntu 15.04 64-bit on my Dell XPS 12-9Q33 running Windows 10. I'm running into roadblocks everywhere however, so I thought I'd see if anyone with ...
1
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2answers
8k views

Ubuntu/Debian on a Lenovo Ideapad 100s — Linux has issues with this laptop

I picked up an Ideapad 100s and have been trying to install Ubuntu on it. So far I have been unsuccessful to boot the Ubuntu installer. That machine comes with windows 10, uses UEFI and its setup only ...
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0answers
32 views

attempting to install ubuntu when Grub console keeps going up

in UEFI I've attempted to install a new version of ubuntu on a old hard drive that previously had ubuntu on it and it is going to a black/white screen with a Grub console and all i'm able to do is ...
0
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1answer
76 views

Fresh install boots into grub

Linux newbie here. Just recently reinstalled Ubuntu and every time I boot, I get thrown into the grub shell. I've looked everywhere, wasted a lot of time and can't track the problem for the life of ...
0
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2answers
340 views

Windows can't boot after partition shrink

So, I was about to install ubuntu (dual boot) so therefore needed to repartition my hard drive. Its UEFI/GPT Windows 10. I used easeus partition tool to: - shrink the windows partition - create ext3 ...
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0answers
24 views

Problem with installation on my HP Envy k200nf

I have a small problem with the installation of Ubuntu 15.04 on my HP: it shows errors while booting before the installationand stops just before the install program should start at the Ubuntu logo. ...
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0answers
243 views

Dual booting Windows 10 - Windows always starts by default even though Ubuntu partition set as first boot device in BIOS

I am dual booting Win10 and Ubuntu 14.04, same hard drive, different partitions. My intention is to use Linux as my primary OS. When I set the machine up, I installed Win first (UEFI), then Ubu ...
3
votes
2answers
665 views

Unable to boot after install Ubuntu 14.04 LTS on Dell Inspiron 5558 (UEFI)

I have difficulty booting Ubuntu 14.04 LTS on Dell Inspiron 5558. The product originally come with Ubuntu (so I assume that it should run Ubuntu without any complication). I replaced the OEM HDD to ...
3
votes
1answer
55 views

Question about making EFI bootable USB flash drives

This has puzzled me for far too long. Sometimes, a simple copy/paste of the contents of the iso is enough to make a bootable usb for the OS I try to use, while sometimes, copy paste does not work ...
0
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2answers
63 views

eufi\secure boot and auto booting into ubuntu after fresh install

i performed a fresh installation of ubuntu 14.04 amd64 from a usb device as my only operating system, on a new hard drive device. i've tried many uefi combinations after reading Installing Ubuntu for ...
0
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1answer
80 views

Make a portable Ubuntu on a USB stick (bootable on Windows 8.1)

This is actually quite similar to a question posted one year ago Make a portable Ubuntu on USB stick (bootable on MacBook/iMac). I meet the same problem on my Lenovo ThinkPad X1 Carbon with Windows ...
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0answers
24 views

Almost done installing Ubuntu 14 but have problem with boot

I have installed Ubuntu 14 from USB with EFI mode and had a GPT HDD. My previous OS was Window 10. I use GPart to create partitions. I tried many times but my laptop Acer One 14 was always saying ...