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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Install Windows 7 on MBR for Easier Ubuntu Dual-boot

As far as my research and knowledge has shown me, it is easier to dual-boot windows and ubuntu when both are installed on an MBR partition table. However my problem is that every time I try to install ...
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23 views

Installing Debian on MacbookPro, cant boot the iso [on hold]

this is my first question on AskUbuntu, but I use this forum almost everyday. This is the thing, I have a MacBook pro mid 2012 and I installed a full Ubuntu 14.04 LTS instalation on it. Removing all ...
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2answers
223 views

Kubuntu 15.04 failure to dual boot, missing GRUB menu

I've been dual booting Kubuntu and Windows 8.1 for some time now and just today I upgraded to 15.04 and it's been nothing but problems. Mainly, I can no longer boot into Kubuntu; I don't even get the ...
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GRUB has too many unwanted entries after running the boot-repair

I just added a new hard drive. That hard drive was bad..i thought it messed up with my GRUB and boot loader settings...so i did executed boot-repair as it was not going into Windows at all..but ...
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21 views

Boot Ubuntu with only the built-in Mac EFI loader?

I installed Ubuntu 15.04 on a partition of my Mac Pro's HD. I can boot Ubuntu if I use refind. I don't really like refind at all. I was wondering how to boot Ubuntu with just the Mac OS X EFI menu. I ...
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20 views

do I have to use grub to dual boot windows 8 and Ubuntu? [duplicate]

I'm using a UEFI machine that was pre installed with windows 8. I have installed Ubuntu but I'm only able to boot to windows after the install completed. I want to know if there is a way I can add a ...
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17 views

Can't boot any live cd anymore

I have a dual boot setup on a UEFI machine, and until today I had no problems with this setup. However couple of days ago I tried installing Fedora 22 Beta. I was able to boot to the menu with: ...
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13 views

External HDD Installation on Secure Boot UEFI Device

I wanted to install a standalone version of Ubunto to my external device so I could hook it up to every machine, however after installation my current system does not want to boot from the external ...
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1answer
51 views

Is it safe to install Ubuntu on a mid 2014 retina Macbook Pro?

I am currently interested in installing ubuntu on my Macbook Pro. I wish to know if it is safe to install Ubuntu as a full replacement of Mac OS X or if I should install with dual-boot first. This ...
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2answers
34 views

Windows 8 Doesn't Appear in Grub

I am trying to get Windows 8 to appear under my Grub menu. Here's some background details: Boot Info Script: http://paste.ubuntu.com/10871014/ CPU: Intel 4790k MB: Asus Hero VII UEFI Bios GPU: EVA ...
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25 views

how can I recreate windows 8.1 bootfiles to put on my efi partition? [on hold]

I made a mess of my efi boot partition. I installed Ubuntu gnome 14.10 on a partition on my HDD. During the installation i had manually formatted the efi partition without thinking about that my ...
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32 views

Crazy spinning fans: Ubuntu 14.04 on Dell XPS L521X

I'm a reformed Win/OSX user who recently migrated to Ubuntu on the desktop so be gentle :) My Dell XPS L521X shipped with Win8 install - which had a meltdown about a month ago - so I said f-this - ...
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14 views

Lubuntu refuses to boot from HDD despite numerous tries with boot-repair [duplicate]

I remember problems setting up my Lubuntu with UEFI/Legacy boot mode. That was more than a year ago and the system worked fine - until now. For whatever reason, it refuses to boot again. I went ...
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32 views

Can't reinstall ubuntu

I can't boot Ubuntu 14.04 through USB bootable after I deleted the installed Ubuntu partition from the hard drive, the Grub is still exist in my EFI partition which I can't able to access and delete ...
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2answers
18 views

Remove Grub menu after Dual Booting

I had dual booted my Acer Aspire V with Ubuntu 14 recently to try it out. I followed guides online on how to remove it from my computer. First I deleted the Ubuntu partitions then used a flash drive ...
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1answer
21 views

Unable to access Windows partition from Ubuntu live USB

I have a Meegopad T01 mini PC, which has a 32-bit only UEFI firmware. I booted to my Ubuntu live USB and when I opened Gparted, I saw a lot of mmcblk0p* partitions like this: All of them have a red ...
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2answers
46 views

problem dual-booting Windows with EFI and 2 hard disks

I've searched everywhere for answers to the problems I'm having, and can't find a solution. I hope someone here can help. I have a Thinkpad T420 with two hard disks. The first hard disk is internal ...
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1answer
32 views

Legacy + UEFI, persistent Ubuntu install for students

I will be teaching a PHP course this fall, and we require the students to purchase their own external drives, on which we install Ubuntu with LAMP stack. Previously, we used 1 TB drives with a ...
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1answer
34 views

u410 SSD BIOS Problems

I am all out of idea, can someone help a newb? I have successfully installed Ubuntu 14.04 on a Lenovo u410 with UEFI on, secure boot on and with optimus enabled but with several issues at hand. I ...
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3answers
104 views

Dual booting Ubuntu 14.04 and Windows 8.1

Yet another question on this topic. Sorry. I've bought a new HP Pavilion 15-p239sa with Windows 8.1 installed, and I'm trying to dual boot Ubuntu 14.04. The problem is that after installation of ...
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1answer
43 views

Dual boot: several Windows 7 loading entries in GRUB2 - should I delete any?

The system is Acer Extensa 2510G, and there's only one HDD. This is how the GRUB2 menu looks: Output of sudo update-grub2: The scripts themselves: Windows UEFI bootmgfw.efi: search --fs-uuid ...
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2answers
39 views

I tried to install Ubuntu 14.04 on an old laptop in place of Windows 8.1, and now it won't boot

I have an old laptop with a broken screen that I'm trying to set up to stream sports games to my TV with, and I tried to install Ubuntu 14.04 on it from USB. I went through the installation and ...
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2answers
31 views

Accidently deleted boot efi fat32 how to make one for old ubuntu install?

I had the latest version of Ubuntu on my hard drive and deleted windows 8 with gpart. I noticed a partition called boot efi and it was fat32 so I assumed it was another partition associated with ...
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2answers
35 views

How can I make Ubuntu not mount efi partition by default at startup?

I've a Asus laptop with windows 8.1 pre-installed, I've managed to install Ubuntu alongside it, and for some days it worked fine. Today, out-of-the-blue, Ubuntu just goes black screen and I'm back at ...
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1answer
29 views

How do you use persistence in UEFI mode?

When booting a LiveUSB into UEFI mode, persistence is not available. When booting into legacy mode, it works fine. why? And how may I resolve this?
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Ubuntu installed alongside W8, W8 wont boot anymore, live usb isnt recognized

I think I might be screwed. I normally run preinstalled windows 8.1 on my Lenovo IdeaPad P400 touch, and I decided to try out dual booting Ubuntu 14.04, having never used Linux before. I edited the ...
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25 views

Ubuntu suddenly restarts and is unable to mount /boot/efi anymore [duplicate]

My problem is the following: I have installed Ubuntu 14.10 in my asus laptop with pre-installed windows 8.1, everything went great and I managed to have grub doing dual boot and I used both OS's for ...
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2answers
65 views

Ubuntu 14.04.2 installer does not recognize partitions when trying to install dual-boot alongside Windows 8.1

I'm trying to follow the guide by Luis Alvarado at Installing Ubuntu on a Pre-Installed Windows 8 (64-bit) System (UEFI Supported) for installing Ubuntu 14.04 UEFI in dual boot with Windows 8.1. I ...
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1answer
648 views

Fastest/easiest way to install Ubuntu on Windows 8

I'm sorry if this is asked frequently but I have a problem, the computer I'm going to install Ubuntu is not mine and can only keep it for about 4-5 days, however I need Linux for homework. In the ...
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1answer
21 views

No OS select menu when starting up my HP laptop

I am new to Ubuntu and thought it looked better than Windows 8.1 I have installed Ubuntu onto my laptop but as soon as I had installed it, it restarted and went straight to Windows booting up. I did ...
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23 views

Struggling to boot back into windows after installing ubuntu 14.04

I have a question, and hold on, could be a long one. Previously, I have dual booted my computer with linux mint 17.1. I do not know how I bypassed Uefi, but I somehow disabled it. So, previously I ...
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1answer
33 views

Ubuntu doesn't showup while booting

I have recently installed Ubuntu 14.04 along side Windows 8 in my Samsung Series 5 np535u4c notebook in a 52 gb disk called Ubuntu. Ubuntu grub screen showed up inttially (till I booted to Windows ...
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1answer
32 views

How to make grub2 recognize other Ubuntu installations again?

Until 13.10 and the grub2 version used there (version number is 2.02~beta2-... since years/multiple Ubuntu releases) parallel Ubuntu installations on other partitions (both with and without separate ...
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Dual HDD manual partitioning woes

Wondering if anyone can lend a hand. Installed an SSD in my laptop, now have two drives (SSD for efi patition and /) (HDD for /home & swap). I am able to install uefi mode with all distros (Arch, ...
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2answers
48 views

Installing Ubuntu on main HDD drive together with Windows 8. To boot Ubuntu from disk-on-key

Despite the abundance of dual-boot issues lying in the World Wide Web, I decided to create the new topic with my specific question. I have a laptop Asus K55V + UEFI + 500Gb HDD + Windows 8 upgraded ...
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2answers
42 views

How to install Windows 8.1(10) in a pre-installed Ubuntu 14.04

I am currenty using Ubuntu 14.04 and I need to install Windows 10 as dual boot. I create new ntfs partition for install Windows, But I get the following error when selecting the desired partition: ...
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Unique problem facing installing Ubuntu 14.04 alongside preinstalled windows 8.1 on laptop lenovo z7080

I have recently buy lenovo z7080 laptop which has windows 8.1 pre-installed. I updated all the drivers and started to dual boot alongside windows with ubuntu 14.04LTS using dvd. I did enable legacy ...
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1answer
65 views

Win 7 boot loop after Ubuntu 14.10 install (UEFI)

Today I installed Ubuntu 14.10 alongside my Windows 7 installation. Unfortunately something seems to have broken and is now causing a boot loop for Windows 7: I can boot Ubuntu perfectly fine and I ...
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1answer
34 views

Cannot get ubuntu installed UEFI

I've been at this all day. I'm running windows 7 and would like to install ubuntu but it just won't work. I turned off secure drive. I can boot the usb normally which gives me the whole "this boot is ...
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0answers
35 views

How to compile a boot loader for 32bit UEFI to be able to boot and install a 32bit Ubuntu OS?

I want to install a 32-bit Ubuntu on a system with a 32-bit UEFI (Bay Trail Intel Atom tablet). How should I proceed? This is not a duplicate of 32-Bit UEFI Boot Support, because this doesn't explain ...
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1answer
49 views

I got a MSI Leopard GP60 2PE with two SSDs? :O [duplicate]

I have a laptop with two SSDs and one is almost completely empty: I have 500gb+250gb and the 250gb SSD has only 1gb of used space which is only a few folders like this: $RECYCLE.BIN/Papirkurv, ...
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1answer
40 views

Repair Grub after Clonezilla

I installed an partition image (Ubuntu 14.04) from another computer to my computer (previously Ubuntu 12.04) using clonezilla. The system partition on the other computer was sda1 and on my computer ...
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18 views

Complete I/O error HDD after doing dd

Ok, before reading this, I just want to say that this is not a duplicate post. I once owned a Seagate Momentus Thin 500GB that contains Windows 8. After messing up a bit, it restarted and what I saw ...
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2answers
130 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 ...
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1answer
72 views

Adding Ubuntu to Windows 8.1 Boot manager UEFI mode

I am trying to add Ubuntu to the Windows boot manager in Windows 8.1. I have tried using easyBCD to do this but as I am booting in UEFI mode it fails to work. Is there a way to manually add it in ...
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0answers
31 views

Windows 8 remove grub after booting

I'had Windows 8 installed on a SSD with 2 other Hard Drive, I intalled Ubuntu on the SSd (~15Go partition) and the Grub just worked fine, I could run Ubuntu and after a reboot I run windows8. But ...
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1answer
34 views

Cannot remove ubuntu as a boot option

I followed the instructions at: How do I remove "Ubuntu" in the bios boot menu? (UEFI), but ubuntu keeps on reappearing as a boot option. Is there a way to fix this? Edit: Is it also ...
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0answers
64 views

Reboot loop trying to install 14.04.2 amd64 on new ASUS A88XM-A

This system is brand new with no OS. mobo: A88XM-A with bios version 2102 x64 CPU: AMD A10-7700K GPU: Radeon R7 Plus 8GB RAM, 1TB HD, SATA DVD R/W etc. Trying to install ...
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0answers
64 views

Persistent Ubuntu on a USB drive

From the title, my question probably sounds very similar to old questions but as far as I can tell it is not. I've looked through many of those questions and have not found an answer to my complete ...
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Can i safely update my Bios/Uefi using Wine and what does it change? [duplicate]

I've got a Acer Aspire V5-572G. My current uefi version is 2.01, from the official website i can see the most recent version is 2.10. After extracting all you get is an .exe file and on the website it ...