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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How to install Ubuntu on an (U)EFI device with existing GPT?

I had Ubuntu 11.04 running till now. Now I want to reinstall Ubuntu with nearly fresh 12.04. I had much trouble last time to install Ubuntu because of EFI. Yet somehow I somehow got it running. But I ...
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3answers
4k views

Can't boot ubuntu on Lenovo V570

I recently tried to install Ubuntu on my new Lenovo V570, planning to dual boot 11.10 with Windows 7. I realized after installing that it would boot straight into Windows, so I looked up the issue. I ...
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1answer
2k views

Ubuntu on Asus X205TA

I want to install Ubuntu on my new netbook Asus X205TA. I try to create a USB stick with Unebootin but not succes for boot on. Thanks for your help
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1answer
94 views

Is it possible to install Linux as a standalone OS with a UEFI system that came preinstalled with Windows 8?

I've tried installing Ubuntu several times as a standalone OS on my Toshiba Portege z935 which has a UEFI Bios and came pre-installed with windows 8 and it does not work. Is it really only possible to ...
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2answers
54 views

Grub Setup for dual Ubuntu under EFI

I have installed to versions of Ubuntu, one up-to-date Xubuntu and a 12.04.5LTS Ubuntu. I first installed Xubuntu and later Ubuntu. Since the 12.04 would not write a correct grub-conf on install (I ...
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2answers
684 views

boot-repair fails (UEFI and pre-installed Windows 8)

I have bought a new laptop, Toshiba Satellite NB10t-A-101, with pre-installed Windows 8, after one day of figuring out how to install Ubuntu in UEFI I finally managed to do it (which wasn´t easy, as ...
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2answers
2k views

''EFI boot partition'' and ''biosgrub'' partition

Why do I need these? I have installed Ubuntu under a non UEFI (master boot record) and have installed Ubuntu with no 'biosgrub' and it works fine, whereas other times I am asked to make a 'biosgrub' ...
2
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1answer
867 views

Black screen after selecting Install Ubuntu from boot menu (running Windows 8 pre-installed) [duplicate]

I have a Windows 8 pre-installed laptop here. I used UNetbootin to create a USB bootable drive for Ubuntu 14.04 x64. I resized my disk partition, and disabled secure boot. Here's my situation: In ...
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1answer
157 views

How to get Ubuntu installer to sense Windows 8.1 as an OS [duplicate]

When I go to install Ubuntu so I can dual boot Ubuntu with windows 8.1 on my Toshiba Satellite C55 the Ubuntu installer does not sense My pre-installed windows 8. I referred to these guides: UEFI ...
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2answers
18k views

UEFI Dual-Boot - Ubuntu 12.04.3 + Windows 8.1 (One GPT HDD)

UEFI Dual-Boot - Ubuntu 12.04.3 + Windows 8.1 (One GPT HDD) Hello, I'm having trouble setting up a dual-boot (Ubuntu 12.04 LTS and Windows 8.1) in my ASUS K55VM laptop's hard drive disk (500 GB). I ...
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4answers
295 views

Confusion about dual-booting Ubuntu and Windows 8. CSM or UEFI?

As far as I have heard, dual booting (Ubuntu and Windows) in UEFI isn't very clean, and hence people prefer CSM when doing so. But, in case my laptop has Windows pre-installed in UEFI, I need to ...
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2answers
429 views

Dual Boot: Windows 8 is fine, Ubuntu is fine, but will only boot when dvd is in the disk drive

I have a new computer with Windows 8.1 and have gone to work at dual-booting with Ubuntu 12.04.3. I can boot Windows 8 from the grub menu just fine, and Ubuntu appears on the menu and I can select it, ...
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1answer
1k views

How do I change the PC boot from Legacy to EFI mode when boot-repair warns me?

I ran boot-repair and got this warning: The boot of your PC is in Legacy mode. You may want to retry after changing it to EFI mode. How do I change to EFI mode? Is this done in the BIOS?
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2answers
9k views

Ubuntu 13.04 on UEFI system hangs at black screen

OK, so it seems this question has been asked before but not successfully answered. I have a Windows 8 Toshiba P75-A7200, and I've disabled Secure Boot, Fast Boot, and Fast Startup. Still, when I try ...
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1answer
5k views

Windows 8 won't boot via grub after intalling 12.10 with boot-repair

I hope someone here might be able to help me. I've just purchased a new Acer Aspire V3-771G laptop which came pre-installed with windows 8. I shrunk the main windows partition and installed ubuntu ...
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2answers
2k views

Grub loads after rEFInd

I have a dual-boot UEFI laptop, with Ubuntu and Windows. I installed rEFInd to boot to these systems, and it worked fine, but my linux system was triplicated. I supposed it was because of rEFInd ...
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1answer
3k views

Ubuntu 12.04 on Lenovo ThinkPad with UEFI

I have installed Ubuntu 12.04 Desktop amd64 on my Lenovo ThinkPad E330. There were no problem during installation. Now I can boot to Ubuntu and use it. BUT: now there is only one option in Boot ...
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2answers
243 views

How do I determine which HDD the system was booted from when using UEFI?

In a system with x identically partitioned HDD's each drive has a UEFI boot partition with the bootable flag set. During power on I'm able to select any of the HDD's to boot from using UEFI. Once ...
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5answers
4k views

How do I install Ubuntu 12 on a 64bit PC with UEFI and GPT SSD disk, with no current OS?

How do I install Ubuntu 12 on a new 64bit PC which has UEFI instead of BIOS and a GPT formatted SSD disk, with no current OS ? I have already tried and although it seemed to install, it would not ...
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1answer
26k views

How to boot into Live USB/CD with UEFI on latest Vaio S series?

I am unable to boot from USB/CD into a live Ubuntu session to proceed with install. Esc or F12 didn't work and I can't seem to be able to enter the bios settings. Sony Vaio S w/ Ivy Bridge (just one ...
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2answers
3k views

Dual Boot Installing Ubuntu 12.04 with Windows 7 (64) on a non UEFI system

I cannot seem to install the correct boot loader for a non-UEFI firmware system. I'm trying to install Ubuntu 12.04 and Windows 7 (64) which are technically compatible with GPT but for windows only if ...
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2answers
3k views

Can the EFI system partition be RAIDed?

I'm setting up a HTPC with Ubuntu 64-bit, using UEFI and RAID with GPT disks. Is it possible for the EFI system partition (partition type 0xEF00) to be part of a RAID1 array using mdadm? I'm hoping ...
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3answers
38 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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1answer
129 views

Ubuntu / Windows 7/8 boot issue

I installed a dual boot Windows 7/8 on my laptop and now I also added a Ubuntu 14.04.1. To install Ubuntu I did an efi partition on sda1, a swap partition (sda6) and root (sda7) After the ...
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1answer
164 views

Lubuntu 14.04.1 - load installer components from cd fails, although integrity is ok - why?

I am trying to install lubuntu-14.04.1-alternate-amd64 on a USB Stick - and oh my, is that some trouble. My Setup: Win7 UEFI System with enabled Secure Boot My Target: 64GB USB 3.0 Stick in USB3 ...
2
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1answer
668 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
116 views

What filesystem should /boot be?

I recently decided to set up my custom built system to be Linux only and I manually set up /boot, /, and swap partitions with /boot and / being ext4 filesystem types. Upon completing installation of ...
2
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1answer
154 views

Ubuntu all of a sudden fails to boot on ThinkPad T430

Not booting Running Ubuntu on my T430 has been fairly straightforward and great until just now. After I used my Windows for some days, Ubuntu all of a sudden fails to boot. After I select Ubuntu in ...
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3answers
389 views

Ubuntu 14.04 LTS Broken Install

So I downloaded the latest amd64 iso, burnt to disk and booted from it. When I first boot to disk the console shows an error that quickly disappears along the lines of "Could not find ...
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1answer
1k views

Completely messed up grub/efi/gpt dual boot

I seem to have almost entirely screwed up my machine. I was attempting to install an ubuntu liveusb to my external hdd, but in the process I messed up my internal setup. The external one works ;) ...
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2answers
6k views

Will Ubuntu 14.04 Have Improved UEFI Support Or Will We Be Using Boot-repair For The Next 5 Years? [closed]

Everyday I see questions on here about someone unable to get Ubuntu to play nice with UEFI. They are soon reminded they aren't in Kansas anymore, told to follow the yellow brick road, see the wizard, ...
2
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1answer
192 views

Tri Boot on an iMac [closed]

I have a 2013 iMac (desktop) which is running OS X Mavericks, Windows 8 and Ubuntu Raring. I am using rEFInd to do the initial boot up but there are a few problems with this setup: it takes a long ...
2
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2answers
541 views

Boot problems after uninstalling Ubuntu

I have a Sony Vaio PC and after uninstalling Ubuntu from my laptop I went into a problem that I can't fix. I get a error message that says: SECURE BOOT FAILED! Your VAIO has detected an invalid ...
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2answers
649 views

How to reinstate dualboot after upgrading to Windows 8.1?

I had a dual-boot setup of Ubuntu 13.10 and Windows 8 on my Asus Vivobook. Initially the dual-boot setup asked for some tweaking as Windows 8 insisted on being UEFI started. But it worked lateron. ...
2
votes
1answer
7k views

Dual Boot Windows 8.1 and Ubuntu 13.10 on 2 Separate SSDs

I've searched every link in AskUbuntu, as well as Google. Many of my findings "kind of, sort of" get close to answering my questions, but not fully. Hopefully I can find help here. I'm building a ...
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1answer
1k views

Live USB for Ubuntu 13.10 does't recognize Windows 8 OS

I have created a Live USB for Ubuntu 13.10 64 bit using Universal-USB-Installer-1.9.4.4 I have restarted and booted from the USB; tried Ubuntu without installing. Everything works fine there ...
2
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1answer
123 views

I cannot install Ubuntu on my laptop [duplicate]

I bought a Dell Inspiron 5423 ultrabook with a 32GB SSD drive and a 500GB HDD. I tried to install Ubuntu with a live CD, but there is no drive shown on which to install Ubuntu. In my boot options I ...
2
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1answer
385 views

Ubuntu 12.04 and 13.04 livecd graphics driver problem? I'm using UEFI :P

Okay, this is my first time asking a question here. I have used Ubuntu on my computers for a few years now, and I recently bought a Windows 8 (oh no!) ultrabook that I have been trying to put Ubuntu ...
2
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1answer
350 views

13.04 install stops after splash screen - ata7:00: failed command: IDENTIFY PACKET DEVICE

I have repeatedly tried to install 13.04 on my minitower to no avail. The installation invariably stops with a totally black screen - or frozen cursor on a black screen - after the splash screen. ...
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2answers
12k views

How to dual boot on Dell Inspiron 3521 laptop preinstalled with Windows 8? [duplicate]

I recently bought a Dell Inspiron 3521 (15”, Intel i3 processor, 4GB RAM, 500GB hard drive, A07 BIOS from InsydeH2O) with Windows 8 pre-installed. I expected to be able to install Ubuntu 12.04.2 from ...
2
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1answer
3k views

“Reboot and select proper boot device” error after clean Ubuntu 13.04 install

I am having the same problem as Clean Install of Ubuntu won't boot [reboot and select proper boot device] where a fresh Ubuntu install completes but will not boot. I get a Reboot and select ...
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1answer
4k views

EFI Partition vs /boot in UEFI System

I have a HDD Momentus Thin (500GB) + mSATA Samsung (32GB) and I intend to install Ubuntu 13.04 in a UEFI - GPT - Secure Boot - Linux only System. I'll set the "/" (root partition) to use the whole ...
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1answer
510 views

Ubuntu 13.04 not recognized as Bootable after installation

I managed to successfully install Ubuntu 13.04; however after restarting, I found that the installation was unbootable.There was no error message --there was simply no option to boot from my hard ...
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2answers
5k views

Ubuntu 13.04 hard disk does not boot

At the moment I have just 1 hard disk in my computer, with Ubuntu 13.04 installed. It is not bootable. It is formatted with gpt, by gparted. AHCI is enabled, secure boot is not enabled. Ubuntu live ...
2
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1answer
3k views

How can I boot Windows 8 and Ubuntu 13.04 on a PC with an EFI bootloader? [duplicate]

I just bought a Lenovo ideaPad Z400. I installed the ubuntu 13.04 without problem. Now, I cna't boot the windows 8. Eaither in secure boot mode enabled or disabled. I am frustrated. this is my ...
2
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1answer
816 views

Unable to EFI boot after Ubuntu 12.10 install (Lenovo E30)

Basically the system won’t boot. After the BIOS screen I get the message: “Error 1692: No operating system found” I ran the ‘boot-repair’ utility without success. Here is the boot info that utility ...
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2answers
4k views

Dualboot Windows 7 and Ubuntu 12.04 on UEFI Unable to Boot to Ubuntu

Here is the layout of my disk: /dev/sda1 (EFI partition) /dev/sda2 (Recovery partition) /dev/sda3 /dev/sda4 (Windows 7 partition -- boot) /dev/sda5 (/boot) /dev/sda6 (swap) /dev/sda7 (/) I have ...
2
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1answer
121 views

Ubuntu LiveDVD problem

I am new to Linux, I tried Ubuntu 12.10. On a Laptop pre-loaded with windows 7, that was later upgraded to windows 8. I created a Live DVD, and booted the disc. When I boot from the disc, it goes ...
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1answer
357 views

UEFI: BIOS boot windows on the HDD if i try to boot UEFI ubuntu 12.10 from USB, why?

I started by using the USB install creator form my 12.10 installation, with the 12.10 image. on my bios i disable safe boot, and enable legacy mode (or CSM a my bios calls it). I reboot and press ...
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2answers
8k views

Windows 8 Dual Boot Ubuntu 12.10 with UEFI broken Windows boot manager

Brand new Asus U500VZ, Windows 8 preinstalled. I removed the fakeraid, turned fastboot and secure boot off, and set the SATA to AHCI and deleted all existing partitions on both SSDs. Purchased ...