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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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
47 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
101 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
19 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
32 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
24 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
53 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
86 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 ...
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1answer
30 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
12 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
39 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
28 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
85 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
61 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
49 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
29 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
24 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 ...
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1answer
32 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
74 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 ...
0
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1answer
80 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
15 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
41 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
25 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
104 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
46 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
83 views

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

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
30 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 ...
0
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1answer
38 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, ...
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0answers
63 views

14.10 only boots to UEFI Interactive shell

Hello I am very new to Ubuntu and am testing it out on a VirtualBox VM.. It installed fine, I was even able to install Guest Additions and a few apps before shutting it down for the day. Now when I ...
0
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1answer
49 views

Grub2 and UEFI, ASUS Zenbook

I just bought a new laptop "Asus Zenbook UX32L". I had Windows8 preinstalled. But I needed Ubuntu. So I tried to install Ubuntu 14.04 LTS. I totally cleared my HDD and I just clicked Install Ubuntu. ...
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0answers
37 views

Cannot switch between windows 8 and ubuntu OS

I have been using windows 8.1 OS previously, but due to some work I had to install ubuntu 14.04 alongside windows. The installation was successful but now when I start my computer it automatically ...
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0answers
63 views

Installing Ubuntu 14.04 on UEFI after already wiping Windows

I bought a Toshiba Satellite E50 laptop about 6 months ago and finally got around to attempting to install Ubuntu 14.04. Figuring it would install as it should, I didn't look up any tutorials on ...
1
vote
1answer
33 views

Accidentally deleted Win 8 while installing Ubuntu 14

My problem is that I accidentally deleted Win 8. But actually I don't need it and I don't want to buy Recovery disk. I need to install Ubuntu. So when I installing Ubuntu I just Erase my disk and ...
1
vote
1answer
66 views

Partitions Grub UEFI GPT MBR

I'm having a problem with the partitions in my system. Yesterday, I wanted to try Arch Linux, so I installed it in a new partition and in the process I was told, since my system is UEFI, I had to ...
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0answers
54 views

how to enable secure boot after the installation

Kubuntu 14.04 64bit on a MS-DOS (MBR) type HDD (sda4) Kubuntu 14.10 64bit on a GPT type HDD (sdb5) Windows 8.1 64bit on a GPT type HDD (sda3) these are my installed OSes, both kubuntu installations ...
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votes
2answers
95 views

FGLRX disturbs TTYs and Plymouth graphics

I just installed Ubuntu Trusty on my new SSD, enabling UEFI, which was disabled previously. After the installation finished (and I finally found a workaround for a strange HP UEFI, which denied ...
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1answer
75 views

HP UEFI doesn't boot Ubuntu automatically

I own a HP ProBook, which came with SLED11 preinstalled, and on which I has Trusty installed (NO Dual boot). UEFI wasn't enabled. Now I bought a SSD and built it into the laptop. As I read that using ...
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0answers
60 views

Unable to upgrade or fresh install Lubuntu 14.10 (32bit) on Lenovo Ideapad S205

I'm unable to upgrade or fresh install Lubuntu 14.10 (32bit) on a Lenovo Ideapad S205. After the install or upgrade, the laptop just boot loops. Upon booting I get the Lenovo EFI splash screen, the ...
0
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0answers
8 views

How to create a Windows UEFI bootable usb under Ubuntu(elementaryos)? [duplicate]

I already have Windows installed but I broke it with Intel Rapid Storage. I'm trying to install Windows 8.1 x64 via UEFI(GPT). I tried with WinUSB but it's not UEFI and it gives me "grub error..."
0
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2answers
64 views

UEFI boot up file for Ubuntu? (Toshiba P840t-ST3N01)

I am trying to install Ubuntu on my Toshiba P840t-ST3N01 and I keep getting the following message: Reboot and select proper Boot device or Insert boot media in selected boot device and press a key. I ...
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0answers
22 views

Disable ASPM with UEFI [migrated]

Is it possible to send a boot parameter similar to pcie_aspm=off when only using UEFI boot? I've installed ElementaryOS Freya Beta 1, without the GRUB boot loader, everything works, but I've been ...
0
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0answers
47 views

How to migrate Ubuntu and Windows from Legacy boot to UEFI boot?

I had installed Ubuntu and Windows(an ext4 partition and an NTFS partition for each) in the LEGACY boot mode,not knowing what difference it would make if I installed in UEFI instead.But I have been ...
0
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1answer
49 views

How to install dual-boot Ubuntu on ASUS F202E Notebook

Have an almost 2-year old ASUS F202E notebook that came with Windows 8 and subsequently upgraded to Win 8.1.Since new, it has been a dog. 2GB of non-upgradable memory is nowhere near enough to run ...
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1answer
90 views

Step by step instructions on how to remove grub2 or mount the EFI partition and delete files (UEFI)

everyone very sorry if this is a duplicate question however I cannot seem to get the instructions on other questions to work. I have been trying to uninstall grub and Ubuntu. I have looked at a lot of ...
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0answers
37 views

Is it mandatory to make a new EFI partition during Ubuntu UEFI install?

I am installing alongside windows 8.1. Windows already has an EFI partition. Can Ubuntu add its files into the same partition(without corrupting the windows boot loader) or it needs to add another EFI ...
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0answers
45 views

Boot Ubuntu on Windows 8.1 Laptop

I can't boot Ubuntu from my USB FLASH DRIVE from my Sony Vaio Laptop (Windows 8.1) UEFI What's wrong with my laptop ?
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1answer
51 views

After downloading Ubuntu installer, it asked me to reboot for install. It shut down and seemingly rebooted into a black screen!

So for my recent project I decided to install Linux Ubuntu on a separate 60GB SSD to dual boot with Windows 8.1. Once I went on the official Ubuntu website and downloaded the free version of Ubuntu I ...
0
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1answer
252 views

Acer Laptop Hangs at Ubuntu Installation

I have bought an acer aspire e11 es1-111m-c064. I've tried installing ubuntu 12.04 with a liveusb. I've managed to get through the installation first time. Restarted and it didnt boot in fact asked ...
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0answers
29 views

Cannot boot Linux on W.1 comp - other answers not working

I am having issues booting Linux (I've tried arch, ubuntu, elementary OS, and CentOS) on my 2014 HP Envy Windows 8.1 computer. I have found that many other people have had the same issues. It won't ...