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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Has the bootoption “acpi=noirq” any disadvantages in permanent use? Help me with debugging acpi pls

I am using Ubuntu for a while now and I have an average knowledge of it, I thought so ;), but have a problem I cant solve alone. I did a lot of research, but now I cant find an other solution and I ...
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1answer
14 views

Creating a windows 7 bootable USB drive to boot UEFI? I've tried EVERYTHING

this is my first post and I apologize if it's in the wrong place. So I am trying to install Win7 from the x64 .iso form DigitalRiver in UEFI so it can use GPT partitions. I used Unetbootin to create ...
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2answers
22 views

Enter Bios from Ubuntu 14.04

I changed Bios settings in my Lenovo IdeaPad Yoga13 running Win 8.1 as I was having difficulties in installing Ubuntu 14.04 LTS. In the process I also changed the UEFI to LEGACY. Later Ubuntu booted ...
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1answer
22 views

problem in installation of ubuntu in virtualbox :(

i was trying to instal ubuntu 32 bits in virtualbox but i coudn't an error occured he said :"this kernel requires an x86-64 cpu but only detected an i686 cpu unable to boot plz use a kernel ...
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12 views

A few questions about booting gnome ubuntu in bios boot mode

I have installed gnome Ubuntu in legacy BIOS mode. When it boots there are lots of times where it seems to switch the display off... like when you first see the grey plain Ubuntu gnome boot screen, ...
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0answers
11 views

Installing Ubuntu 12.04 on laptop(Zenbook UX303) with UEFI (NON-DUAL BOOT)

I do not wish to dual boot. This is different from the majority of the people here. What steps must I take to do this, I want rid of Windows. The documentation on UEFI is very confusing. I would like ...
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1answer
15 views

Ubuntu cannot see disk partitions when installing

I've got Toshiba Satellite U50t-A-10H with Win8.1 installed, UEFI, HDD 750GB + 32GB SSD cache. I'm trying to install Ubuntu on it. I've split my disk, made 200GB free unallocated space and booted ...
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0answers
13 views

Any intuition into how I've messed up? UEFI dual boot woes, Win7 and 14.10

there. New poster long time lurker. I haven't used Ubuntu since Natty; forgive me. I recently burned an ISO of Ubuntu x64, and thought I'd dual boot with Win 7; My system has a spare HDD, so, I ...
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0answers
13 views

Dist-upgrade in Ubuntu 14.10 tries to remove grub-efi-amd64

A recent security (?) update in 14.10 Utopic Unicorn caused "apt-get dist-upgrade" in Ubuntu 14.10 to try to remove package "grub-efi-amd64", and replace it with package "grub-pc". I use grub-efi to ...
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0answers
28 views

Boot 32-bit Ubuntu 14.04 from USB Stick on Windows 8.1(64-bit)

So I have a3 32-bit Ubuntu image file and I want to boot it from my USB stick. I have already made a bootable stick but whenever I go into my UEFI menu and Choose 'Use a device', I see nothing. Is it ...
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0answers
40 views

Windows isn't booting after trying to install ubuntu 14.10 (Dual Boot) [duplicate]

I was installing Ubuntu 14.10 (dual boot) on my Lenovo G500s (Windows 8 pre-installed) but the installation failed. I selected the Windows UEFI partition as the Ubuntu EFI partition and the ...
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3answers
39 views

Can't boot LiveUSB in Windows 8.1

I am attempting to dual boot my HP machine that came pre-installed with Windows 8.1. I am trying to dual boot it with Ubuntu Gnome 64-bit version. So far, I have disabled fast startup from Control ...
0
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1answer
41 views

Install Ubuntu 14.04.1 64-bit onto an Acer v11 touch

This is a very brief question with a very long intro, which I've provided for context. LONG INTRO I have recently been trying to install the AMD 64 bit version of Ubuntu 14.04.1 onto my Acer V11 ...
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0answers
22 views

Problems installing Windows 7 over Ubuntu [duplicate]

I am new to Linux. My problem is that when I try to install Windows 7 from USB I go straight to GNU GRUB menu or something like that (again I am new to Linux). When I access the UEFI (BIOS) and ...
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1answer
29 views

Problem with grub Ubuntu 14.04

I have just installed Ubuntu 14.04 on my PC and when I restarted the PC it told me that it does not have any Operating Systems installed, ok, so I tried to reinstall grub with the Ubuntu live CD ...
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0answers
25 views

Trouble installing ubuntu from live usb on a windows 8 laptop

I have an asus laptop with windows 8 preinstalled on it. I dual booted it last year and everything worked. then the windows 8 side totally crashed. if it lets me in at all, all I see is the home ...
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0answers
20 views

Solid dual boot solution for OS-X and Linux (ubuntu)

What is the best, solid dual boot solution for having OS-X and Linux on the same harddisk on a Macbook Pro? Criterias would be: Usability Robustness of the setup (regarding updates of OS-X etc.) ...
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0answers
14 views

Grub not responding

I ran into a problem after installing Ubuntu without rEFInd on my Macbook Air 2013 11". I used my macbook's own bootloader to install it, and everything worked fine (I could use the USB drive to boot ...
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0answers
63 views

How to try ubuntu live image on acer iconia w4-820 Win 8.1 tablet?

I have Acer iconia W4-820 windows 8.1 tablet which is an UEFI boot device. its secure boot is enabled. I dont know anything about UEFI hoe to play with it. I just want to try ubuntu desktop images on ...
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0answers
12 views

Help with dual boot on toshiba satellite [duplicate]

staff. I'd like to make dual boot with Ubuntu on the Toshiba Satellite, where is just installed Win 8.1. On that computer, there is EFI and UEFI system, so i ask you if somebody can give me ...
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1answer
31 views

My laptop doesn't recognize its internal disk as bootable. How do I fix this?

I bought a Toshiba Satellite and installed Ubuntu using a homemade liveusb, choosing to use the entire HDD and set up an encrypted LVM in the process. The installer finished with no errors, but the ...
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0answers
10 views

Multiooting in Secureboot mode - vmlinuz invalid signature [migrated]

My system has Windows 8.1 installed by default. I installed LinuxMint and openSUSE later. The problem is if I use openSUSE bootloader, it is able to load windows but not linuxmint. The error vmlinuz ...
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0answers
29 views

Cannot boot Ubuntu after Windows8.1 upgrade [duplicate]

Problem: I had functional dual boot system between Windows 8 and Ubuntu 14.04 on Toshiba Satellite laptop. After upgrade to Windows 8.1 the Grub screen was not displayed and the laptop booted ...
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0answers
31 views

Kubuntu dual boot uefi windows 8: startup problem

I've install kubuntu 14.10 on my new laptop by following uefi tutorial, and now i have both system on my laptop, but i've noticed a problem. When i power on my pc and on grub i choose to start ...
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1answer
41 views

Cannot Boot From USB

I created an Ubuntu LiveUSB and when I reboot my computer I get no option to boot from it. I have Secure Boot disabled. There are no fastboot or quickboot options in my BIOS settings. I have Windows ...
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0answers
21 views

LG 11T540 Network device

I'm planning to use Linux in my LG slidepad. I got to make it to boot through a flash usb. It has no ethernet device so I will have to solve this problem through download, copy, paste The computer ...
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1answer
49 views

How to boot Ubuntu after removing Windows on UEFI system

After previously dualbooting Ubuntu 14.04 lts with Windows 8.1, I finally bid my farewells to windows and wanted to make a complete switch to linux. I decided to upgrade to Ubuntu 14.10 as there frame ...
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0answers
50 views

Ubuntu14.04 Installer Crashes

I have been trying desperately to install one of the linux distros but I'm not having luck. Usually, the reason is GRUB not installing. Now, I'm not a linux guy and I rely on help from others. One of ...
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1answer
22 views

Upgrading to UEFI motherboard while keeping old hard drive

I want to upgrade my motherboard+CPU, but have no desire to reinstall my Ubuntu system (Ubuntu is the sole OS in the hard drive). My current MB uses BIOS, but the new one will almost certainly use ...
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2answers
87 views

Can't boot after deleting EFI boot- and Windows-partition

I got an HP Split x2 with Windows 8 pre-installed. I deleted it, and installed Ubuntu. However, I was wanting to play a few games that didn't work too well on wine, so I created a NTFS partition and ...
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0answers
35 views

How can I chainload Fedora GRUB from Ubuntu GRUB?

I have a laptop with an UEFI setup, and I have the following OSs installed: Windows 8 Fedora 21 Ubuntu 14.10 Secure Boot is turned on! Booting all these from the UEFI boot menu works fine. I am ...
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3answers
85 views

Dual-boot with UEFI borked. Help!

I first installed Windows 8.1 on my machine, and then installed Ubuntu 14.04 LTS. This is what my partition table looks like: The problem is that when I boot the machine, I see no boot loader ...
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0answers
20 views

Problem loading Zorin after install [migrated]

I have tried to install Zorin.To install the OS I went to my UEFI BIOS turned off fast boot and Disabled secure boot option. After that I loaded my USB and installed the OS. Everything went perfectly ...
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1answer
25 views

How to load Ubuntu boot option after hiding it in Windows?

I've installed Ubuntu, and I had it set so that whenever I turned on my laptop, it would load a purple screen that would allow me to pick from Ubuntu or Windows. Well, I screwed with a setting in ...
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2answers
37 views

dual-booting now have 2 grub-menu's

I have a Dell Inspirion laptop stock with Windows 8.1, I have added Ubuntu 14.04. Ubuntu install went perfect, rebooted came to the regualar, grub2 menu, (I say regular because it's the same one I've ...
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1answer
28 views

Restore /boot/efi

Recently I apparently corrupted my /boot/efi partition, I got according error messages at boot and a manual console to remount it. I tried to reformat it (mkfs.vfat 32), reinstalled grub ...
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1answer
65 views

Help installing ubuntu 14.04 with windows 8.1

To start off I'll let you all know I have a Lenovo T430s running the preinstalled windows 8.1. What my initial plan was (and I have yet to find a way to do it), was to install Ubuntu 14.01 onto an ...
1
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1answer
38 views

Ubuntu Screen goes black after boot using Dedicated GPU

After installing a fresh copy of Ubuntu (14.04 LTS) I am not able to see anything after boot. Once Ubuntu boots, There is no HDD Activity and the Display remains black with no image on the ...
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2answers
41 views

Official Installation Documentation?

Is there an 'Official Ubuntu Linux Documentation' Page on the topic of (How to correctly go about) Manually Partitioning for an UEFI install of Ubuntu 14.04 LTS (and later) During the “Something Else” ...
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1answer
32 views

efibootmgr doesn't match what's really used on MacBook Air

I'm on a MacBookAir5,2 (2012) and I've been running Ubuntu along side Mac OS X for some time. I used rEFIt when I first installed Ubuntu and that worked fine. As I started working with Docker, I ...
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1answer
41 views

How to Correctly Set up Dual Boot windows 7 and ubuntu on 120Gb SSD drive with UEFI

For as long as i have had my Alienware M17xr4 Laptop i've been trying to set up dual boot windows 7 and ubuntu 14.04 in UEFI mode.. I have a 120 SSD Drive partitioned to 80GB for the Windows 7, ...
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1answer
39 views

Ubuntu appears twice in UEFI boot options

I'm a noob at Ubuntu, but when I enter in the UEFI boot menu, Ubuntu appears twice (like this: Ubuntu (P0 : ST750LM022 HN-M750MBB). I installed Ubuntu in UEFI mode as my only operating system, ...
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0answers
63 views

Install Ubuntu 8.04 in triple-boot with Unbuntu 14.04 and Windows 8.1 [closed]

No, this isn't the typical duplicate question about dual Ubuntu (12+) with Windows 8. I am way past that, dual booting beautifully Ubuntu 14.04 LTS & Windows 8.1, thanks to this excellent answer ...
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1answer
134 views

How to start installation of Ubuntu 14.10 on Dell XPS 15 (along Windows 8.1)?

I recently bought a XPS 15 with Windows 8.1 on it and I'd like to install Ubuntu 14.10 along the side. I've copied the .iso file on a USB stick and registered it as a boot option in the BIOS/UEFI. ...
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0answers
31 views

unable to get nvidia card working on slot 1 16 speed pcie

I have a 2006 mac pro 1.1 and I've just fitted an Nvidia Gtx 750 ti. I know its overpowered, but I wanted the opengl4.4 specs. The problem that I have is that it is not detected by the o/s when in ...
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1answer
60 views

Fresh Ubuntu UEFI installation won't boot

On my Toshiba, Satellite E45T Ultrabook I have made a backup of my Windows 8 recovery partition; then I booted a Live USB with Ubuntu, cleaned everything on my HDD (750GB) and SSD (32GB) and installed ...
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1answer
35 views

How to reboot ubuntu of of live cd (USB) with ubuntu installed?

After finding out how to fix my hard drive partitioning problem, I went to boot from a live usb only to find out that the try Ubuntu option didn't come up in the grub menu and would only take me ...
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2answers
81 views

How can I install Ubuntu on my Acer 6860 E1-472p? [duplicate]

How can I install Ubuntu on my Acer 6860 E1-472p? I have tried disabling secure boot, as shown by some tutorials, but does not work.
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0answers
370 views

CLOSED - OS X Yosemite - Live USB - Black screen when trying ubuntu 14.04

First of all, I have a Macbook Pro mid 2009 with Intel Core 2 duo running OS X Yosemite (8Gb of ram, 500Gb SSD), I downloaded ubuntu-14.04.1-desktop-amd64.iso and I use a 4Gb USB stick Here is what ...
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0answers
33 views

win 7 boot fail after 14.04 dual install

had windows 7 pre-installed followed instructions pretty much exactly here http://www.linuxbsdos.com/2014/05/30/dual-boot-ubuntu-14-04-and-windows-7-on-a-pc-with-uefi-firmware/ but now..windows won't ...