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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Incredibly bad m.2 SSD performance

I have a new laptop (HP Omen) and have just, after great trials and tribulations, installed Kubuntu on it. The install is a dualboot install along with the factory Win8.1 installation using EFI mode. ...
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8 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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31 views

Want Ubuntu and Windows both on My Laptop

Some days ago i used Ubuntu 14.04 LTS for 2 weeks and loves it. On that time i had completely install Ubuntu on my laptop. Now the problem is i also has to developed .Net applications. So i need both ...
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0answers
23 views

Install Ubuntu on fresh new SSD within another windows system

I did a lot a research to check if my question was already answered or not, but so far I've only seen two related questions in Can I install Ubuntu on a separate SSD, AFTER having encrypted my Windows ...
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1answer
25 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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1answer
37 views

Dual Booting 14.04 and Windows 8.1 on Sony Vaio Tap 20

I have been toiling away the last week trying to get 14.04 to dual boot on my Sony Vaio Tap 20. This is the method I used to install: Disable fast boot, disable secure boot LiveUSB install of ...
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2answers
53 views

How to install Ubuntu and boot on Toshiba Satellite?

Downloaded and burned ubuntu-14.04.1-desktop-amd64.iso. Checked md5 of iso and md5 of burned DVD. Installed 14.04.1 LTS on a new Toshiba Satellite laptop. Replaced the existing Windows 8 install. The ...
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3answers
73 views

Boot-repair Boot Info: dual boot Windows 8 and Ubuntu

I cannot boot Ubuntu installed alongside with Windows 8.1 on my laptop with UEFI (Sony SVP1322R4RBI). I followed the instructions on dual boot Windows 8 and Ubuntu, tried Boot-Repair with ...
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1answer
33 views

installing Lubunto/linux on laptop wireless not working— broadcom 802.11n?

I am using an acer v5-471 laptop with 8gb ram, windows is laggy and I want to switch to linux, I took a particular interest in kali and downloaded it on a usb and booted it, it worked fine but the ...
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0answers
45 views

Asus x200ma dual boot windows 8.1 and elementary OS. UEFI [on hold]

I just downloaded Elementary OS Luna on a flash drive and booted it in windows using this tutorial https://m.youtube.com/watch?v=46FtBpv6Bjk . I made a 20 GB recovery for windows. A 4GB swap partition ...
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1answer
49 views

Windows 7 Pro/Ubuntu 14.04.1 installation issues

I wonder if someone can help me figure out why I can't set up a Windows 7 laptop for dual boot with Ubuntu 14.04.1 LTS? I have been trying for a couple of weeks now. The problem is seems to be that ...
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1answer
17 views

Cancelled ubuntu server 14.04.1 LTS and now server won't boot

SOLVED. I cancelled the install as the title sais. The problem is now I can't boot into ubuntu, all it shows is a flashing underscore on a black background. I've tried resuming the download from the ...
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0answers
26 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 ...
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1answer
49 views

1 MB “free space” partition is an EFI partition?

My computer already has two pre-installed OSes: Windows 7 and a customized Linux distro. Both are in UEFI mode. GRUB is already installed too. I'm trying to install Kubuntu 14.10 alongside these two ...
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0answers
41 views

64 bit 14.10 installation iso does not boot on Lenovo V570.

I have tested this with a usb drive and burned to a DVD. Whenever I try to boot the image, I get: Booting in insecure mode _ and then the screen goes blank after a few seconds. Nothing else happens ...
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0answers
38 views

USB drive does not appear in BIOS boot order

I installed Ubuntu 14.10 along with Windows 8.1. Obviously I used a USB drive to install Ubuntu. I made all changes to UEFI so I could boot from USB. I could see the USB in the Boot Menu and was able ...
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1answer
94 views

Dual Boot Win7 and Ubuntu: UEFI vs MBR clean install

I know that similar questions have been asked, and I've researched all over the net for a concise, clear answer to this, but I have not been able to find a suitable solution. I just built a new ...
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0answers
35 views

Can't get to grub menu for dual-booting windows 8.1 and ubuntu

I have been knocking my head against this issue for weeks, and I am at a point where I do not know where to go next. I have a Sony VAIO that came pre-installed w/ windows 8 (has since been updated to ...
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0answers
32 views

Dual-boot Windows and Ubuntu constantly crashing

http://paste.ubuntu.com/9597237/ I have an Ubuntu 14.04 dual booting with Windows 8. I want to be able to switch back and forth, but that seems to be an iffy proposition. The Windows was installed ...
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3answers
62 views

Xubuntu / Cannot boot unless navigating to EFI file in BIOS

I have a boot problem on my laptop (HP ProBook 450 G2) since I tried to replace the pre-installed Windows 7 by Xubuntu 14.04. The BIOS uses the UEFI boot mode (but trying the "Legacy" boot mode does ...
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0answers
33 views

Mac mini 2014 not booting Ubuntu 14.04 (no dual boot)

I just installed Ubuntu from a live usbkey on my brand new mac mini. Clean install to main HD with no dual boot or funny business: I plan on booting Ubuntu from the internal HD and connecting an ...
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1answer
26 views

Ubuntu UEFI entry deleted. I need to restore or push another

I reinstalled Windows 8 yesterday. My mistake was deleting the EFI partition, so the entries for Ubuntu have gone. Now, I have lost Grub and my PC boot Windows automatically. There's any way to push ...
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2answers
86 views

How to install multiple Linux Distros and Windows 8 on UEFI?

I want to install Windows 8 + Ubuntu 14.04 for daily use + Ubuntu Studio for audio production. The method I've followed is to install W8 in the clean disk, then shrink the Windows personal data ...
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2answers
303 views

Ubuntu 14.04 single-boot with UEFI-mode enabled

I recently purchased a Dell Vostro 5470 with a pre-installed Windows 8 OEM on a HDD 500GB. Now I'm trying to replace the HDD with a Sandisk SSD 240GB as my main disk (next step will be use the HDD ...
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0answers
29 views

Fresh install of 14.04 - Gave up waiting for root device

I hope you can help me. I've read many, many questions and solutions to my problem on here, however so far I have been unsuccessful in resolving the issue. The system is a Asrock e350m1, 4GB RAM, ...
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0answers
42 views

ubuntu live cd no detected operating system mac

I have installed refind on a 2012 MBP running OSX 10.10, made free space with Disk Utility, and created a live cd of Ubuntu 13.04. When I get to the choice of where to install it, it says there is not ...
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0answers
33 views

rEFInd bootloader not loading by default

I'm in the process of hacking my Surface Pro 3 with Ubuntu. The Surface is a UEFI x64 system that uses Secure Boot. At this point I have Ubuntu installed along side Windows, booting through GRUB2 with ...
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0answers
19 views

How to prevent Ubuntu from installing a bootloader? [duplicate]

I want to know if it is possible to prevent ubuntu from installing a bootloader in UEFI install mode as to use gummiboot, my current boot manager which works just great for Arch. My objective would ...
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0answers
62 views

Cannot install Ubuntu alongside Windows 8.1

I've ready many threads here and elsewhere about creating a dual boot Windows 8.1 and Ubuntu 14 machine. It doesn't seem possible. Can I just confirm this is true as its hard to get a definitive ...
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1answer
176 views

Creating a boot disc and Installing ubuntu ASUS X205T(A)

I am having problems with creating a boot disc and installing ubuntu on an ASUS X205T I just bought. I have successfully (I believe) created a few boot discs with 2 different programs and checked to ...
0
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1answer
35 views

Do the amd64+mac versions of Ubuntu work on Windows too? [duplicate]

I've been pulling my hair out trying to get a full Ubuntu installation running on my USB, and I think I just got it working for Windows (by disconnecting my hard drives during Live CD ...
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0answers
13 views

Disk image difficulties for old macbook

So I'm trying to install Ubuntu as a single boot on a pretty old macbook (circa late 2006). I downloaded the ubuntu-14.04.1-desktop-amd64.iso and DD'd it to a flash drive, but my old macbook wouldn't ...
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1answer
60 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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0answers
38 views

Lubuntu, rEFInd and Windows 8 Bootloader

I have a VAIO and I installed Lubuntu in UEFI mode. The VAIO also comes up with Windows 8.1 The next thing I know, the VAIO only boot into Windows 8. Every time I try the Boot into another OS option ...
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0answers
112 views

Can I install Ubuntu 14.04.1 alongside Windows 8.1 on a Lenovo y510p?

I recently tried to install Ubuntu (64bit) onto my Lenovo y510p. I partitioned 150GB of space, created a UEFI boot device with my flash drive, and was able to load into a live version of Ubuntu. My ...
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0answers
82 views

14.04.1 on Lenovo Flex 2-15D

I'm trying to install Ubuntu 14.04 on my new laptop. I've tried the factory original UEFI settings and several modified UEFI settings as suggested on this site and on others. I've tried ISO image ...
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2answers
60 views

Why can't I boot from my SSD?

Recently, I bought a 250GB Samsung 840 EVO SSD. I wanted to migrate my system to it, so I copied my / and swap partition to it and ran boot-repair. The program told me I was in EFI mode so I made an ...
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0answers
70 views

Xubuntu 14.04 on Bay Trail Tablet does not boot whether with Live or Grub after install

I've successfully installed Xubuntu 14.04.1 AMD64 on my asus t100 bay trail tablet, I know that I have to setup grub after install because I need a grubia32.efi file (I think that works with ...
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0answers
25 views

Why BIOS-booted Ubuntu detects Win7 while EFI-booted doesn't?

I recently tried to install Ubuntu 14.04.1 on a computer (not mine) which already had Windows 7 installed. When I tried to boot the Live USB in UEFI mode, the installer as well as os-prober both ...
0
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1answer
34 views

Dual boot fails when modifying BIOS

I have a Toshiba Satellite p50 with pre-installed Windows 8.1. I installed Ubuntu 14.04 and the UEFI dual-boot worked fine for some time. However, I realized that every time I make any change in the ...
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0answers
87 views

Failed Dual Boot: Windows 8.1 & Ubuntu 14 - No operating system found

Please help, my situation is as below: I decided to give a try to dual boot windows 8.1 (Preinstalled with VAIO S on RAID0 (Intel RST)) and Ubuntu 14. However, all my boot entry on efi boot (left ...
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1answer
104 views

Unable to boot Ubuntu 14.10 on MacBook Pro

I've installed Ubuntu 14.10 on my MacBook Pro, but now when I try to start the computer I just get a blinking icon that tries to tell me that I haven't got any OS installed. I've heard that rEFInd ...
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0answers
20 views

Dual boot windows 8.1 and ubuntu 14.0 problem

I have windows 8.1 pre-installed.Then I have installed Ubuntu 14.0 Firstly in grub,windows 8 was not shown.Then I have updated GRUB and it shows the windows 8 but whenever I try to launch it.It gives ...
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0answers
46 views

GRUB loader malfunctioning

I have upgraded Windows 8 to 8.1 after having installed Ubuntu 14.04. As usual this led to a problem with Ubuntu GRUB loader. My main problem is that none of the solutions I've found so far work for ...
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3answers
28 views

How do I update Ubuntu in a UEFI-based Windows 8 dual boot

I got Windows 8 and Ubuntu 14.04 dual booted on my system, and I want to update Ubuntu in the future (not now). How do I do it on UEFI hardware? I got a Gateway SX2110G-UW318 PC. Help? :\
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1answer
107 views

Cannot boot into Windows 8.1 after “Trying Ubuntu” from a USB stick

I'm a student who wants to get his feet wet in Linux so I thought I would try Ubuntu. I downloaded the 14.04.1 LTS from the Ubuntu site and created a USB stick with it. I also disabled fast boot in ...
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0answers
51 views

Ubuntu 14.04 installed legacy on windows 8 prepackaged laptop (asus)

Here is the rundown... Windows 8.1 came preinstalled on unit, disk manager confirms it was installed with EFI Asus bios 209 will not boot from USB unless secure boot disabled and CSM (legacy ...
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1answer
93 views

Unable to boot windows8 after instaled ubuntu 14.04 in dual boot mode [closed]

last week i purchase a new laptop in which windows8 is pre-installed. now i want to install Ubuntu alongside windows 8 [following these instruction][Installing Ubuntu on a Pre-Installed Windows 8 ...
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0answers
33 views

boot from usb in uefi mod

I try to boot a live ubuntu from my live-usb but when I can do it only when I'm in legacy mod. In uefi it doesn't allow that and it shows only the windows manager. I checked the bios and I can't ...
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1answer
40 views

Dual-boot not working

I have installed Ubuntu in my notebook, used it by the first time for a few hours and then turned off the computer. But when I turned it on again, my Windows loaded automatically. In the System Setup, ...