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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/boot partition problem when installing Ubuntu

The partition table format in use on your disks normally requires you to create a separate partition for boot loader code. This partition should be marked for use as "EFI boot partition" and should ...
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1answer
32 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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6 views

UEFI and Ubuntu install bootloader

Can someone give clear instructions as to how I am to install Ubuntu and boot it via UEFI. I just bought a new harddrive from scratch. I have GParted on a usb stick Also Ubuntu on a usb stick This ...
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0answers
6 views

How do I create a live USB installer for UEFI/EFI systems that reads and saves persistence changes?

I have a 16 GB USB stick which runs a live boot of Ubuntu 14.10 with antivirus software installed which (obviously) needs to be kept up to date as I use it to boot and clean infected Windows machines. ...
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8 views

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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2answers
23 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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3answers
41 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 ...
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1answer
15 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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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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1answer
7k 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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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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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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2answers
5k views

Ubuntu on Samsung series 7 Chronos. Advice please?

I just bought a refurbished Samsung series 7 (NP700Z5C). I got a great deal on it from Best Buy so that's why I went with it. My intention all along has been to remove windows 8 completely and install ...
0
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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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1answer
52 views

Windows not booting anymore after using easyBcd

I decided to install a dual boot on my windows 8.1 machine. Everything was working fine, but I had the unattractive grub booting option. I wanted to have the good-looking graphical windows boot ...
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0answers
239 views

How to Install Ubuntu with Only Core Packages?

I would like to install Ubuntu on my laptop and have set up the necessary partitions like this: / EFI System Partition /var /home To create the EFI System Partition, I made a 512 MB FAT32 partition ...
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14 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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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
42 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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4answers
10k views

How to install Ubuntu server with UEFI and RAID1 + LVM

I used to install my servers with LVM over software RAID1, and grub install on the MBR of both drives. Now I have an UEFI server, and the compatibility (BIOS) mode does not seem to work. So I went ...
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3answers
67k views

Install Ubuntu next to Windows 8 (UEFI dual boot)

Windows 8 is already jnstalled in UEFI mode on an Asus g55vw laptop. Sad but true, I need it - for now. Downloaded the last version of Ubuntu 12.10. Made a bootable CD from the iso-file. Reboot in ...
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1answer
42 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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8answers
817k views

Installing Ubuntu on a Pre-Installed Windows 8 (64-bit) System (UEFI Supported)

I bought a computer with Windows 8 Pre-Installed, but I didn't like Windows 8, so I decided to install Ubuntu as a second operating system. I'm absolutely new to Linux. I have been using Windows for ...
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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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2answers
3k views

How can I install Ubuntu on my MacBook Pro without EFI interference?

I have a late 2011 macbook pro, that I bought in early 2012. Is it possible to cleanly install ubuntu without the irritating EFI mac 'shell' surrounding the install, making the mac boot sound and ...
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2answers
849 views

ElanTech TouchPad NOT detected as PS/2 in EXO NIFTY 7385

My touchpad is not recognized (is not present in the xinput list) as a PS/2 device or a USB device after installing Ubuntu 14.04. My computer is an Ultrabook that I bought with Windows 8, the touchpad ...
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2answers
3k views

Can't access BIOS and installing a windows hard drive

Built new computer: AMD FX-8320 Eight-Core Processor × 8 9.7 GiB RAM Graphics GeForce GTX 650 Ti BOOST/PCIe/SSE2 Ubuntu 13.10 64-bit Desktop Computer 1 TB HardDrive BIOS Type, UEFI BIOS ...
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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
1k views

cant install ubuntu on new asus g series laptop

I can't seem to install Ubuntu 12.04 LTS or 13.10 on my new Asus G750JM-DS71 gaming laptop. I've been using Linux and Ubuntu for my professional work for years and I've never run into such a ...
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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
30 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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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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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
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
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
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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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
2k views

Dual boot Win 8 / Ubuntu loads only Win

my computer is a Sony Vaio Notebook. I used Ubuntu and Win 8 with dualboot but windows somehow managed to remove the choosing of the OS at startup. I think the bios is EFI and secureboot was disabled ...
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2answers
5k views

GRUB EFI loader cannot find its config file in /boot

I installed Ubuntu, but when I boot I go straight to Grub rescue command prompt (GNU GRUB version 2.00-19ubuntu2.1). I can get a Grub boot interface by typing: set root=(hd0,5) set ...
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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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1answer
146 views

VirtualBox boots only in UEFI Interactive shell

I installed Ubuntu 14.10 in VirtualBox with UEFI. But now I have rebootet this OS and now it boots into a UEFI Interactive Shell v2.0. How can I boot normaly into Grub again? I hope you can help me, ...
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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
4k views

How to upgrade from rEFIt to rEFInd

I have recently installed Ubuntu Server (12.04.3) on a MacMini1.1... The MacMini already had OSX (Leopard) on it and I wanted to keep it, so after much research, I used the gpart and fdisk within an ...
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1answer
122 views

Is it still possible to install Ubuntu to an external harddrive with UEFI?

It looks like installing Ubuntu to an external harddrive isn't possible with UEFI, where as with MBR there wasn't a big difference between external and internal. Is that true or is it still possible? ...
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204 views

Can not access BIOS after Ubuntu UEFI Installation!

I recently installed Ubuntu 14.04 in my Fujitsu AH532 laptop. It was just working fine before the installation. But when I planned to install Windows 8.1, I could not access the boot menu or BIOS ...
0
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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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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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87 views

Ubuntu on Surface RT?

A continuation of Can Ubuntu run on a Microsoft Surface with Windows RT? Regarding the Duplicate Votes: Technology has changed. Now that Ubuntu natively supports UEFI and Secure Boot, this ...