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.

learn more… | top users | synonyms (1)

3
votes
2answers
7k views

How to make live DVD EFI bootable?

Equipment: Pre-loaded Windows 8 Laptop, needs multi-boot capability (Win8 + Linux and BSD) Lots of USB 3.0 sticks and blank DVD-Rs. Various ISO's, including Ubuntu Secure-remix 12.10 Problem: After ...
3
votes
3answers
4k views

can't boot the Live DVD in my pc (UEFI, windows 8 dual boot)

I have a Dell XPS 8500 pc, with windows 8, and UEFI, I want a dual boot with windows 8 and ubuntu 12.10(64 bits) .. then I was reading the next tutorial: http://help.ubuntu.com/community/UEFI but ...
3
votes
1answer
536 views

Computer Turns Off instead of Suspending/Sleeping

I recently assembled a new computer with the second generation Intel Core i7-2600K processor (Sandy Bridge) and solid state drive. The solid state drive is only 60 GB and I have lots of RAM so I did ...
3
votes
1answer
2k views

How to fix “Disk drive for /boot/efi is not ready or not present”? [closed]

After I updated BIOS/UEFI version to 1101 on an Asus P8Z68-V PRO motherboard Ubuntu (11.10) did not boot. After POST all I saw was a black screen with a blinking cursor in the top left corner. I ...
3
votes
2answers
439 views

Ubuntu installation VS UEFI on Dell XPS 13 9343

I have heard that there are problems with Ubuntu on the Dell XPS 13 9343, however - I cannot even make the boot menu pop-up when booting from an installation pendrive (lastest Ubuntu, lastest ...
3
votes
1answer
907 views

Ubuntu 15.04 on USB with UEFI

My desire is to do the following. The computer has W8.1 on the HDD and it is using UEFI I want to install Ubuntu 15.04 on 32GB USB stick in a way that I can install regular updates and it remembers ...
3
votes
1answer
857 views

Installing on a MSI GS60 2QD - Bootloader and wifi drivers question

I just bought myself a new laptop, the MSI GS60 2QD Ghost. It comes with Windows 8.1 pre installed and the new UEFI software instead of the old BIOS. I've read a lot of threads about how to set up ...
3
votes
0answers
84 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 ...
3
votes
1answer
258 views

Booting Ubuntu 13.10 from external hard disk on both uefi and bios?

External Hard Disk Details, GPT, 150GB partition of Ubuntu 13.10. Ubuntu Newbie here please be kind. Firstly, What I would like to do is that ubuntu is able to boot in uefi computers as well as old ...
3
votes
0answers
2k views

Ubuntu UEFI Windows 8.1 Dual Boot

I have installed Win8 and Ubuntu side by side before in the past and had issues with booting which were fixed perfectly the first time using boot-repair. This time, I installed Win8.1 and Ubuntu with ...
3
votes
1answer
3k views

How to reinstall Ubuntu over Elementary OS on an EFI system?

First, a bit of background. I managed to dual boot Ubuntu 13.04 with Windows 8(preinstalled). I disabled secure boot. I had to go in the bios settings and change the disk order to select Ubuntu as the ...
3
votes
3answers
7k views

Windows 7 + Ubuntu 12.04 + Invalid EFI file path + Boot repair + Grub many entries

I've a ASUS N56VZ with Intel Core i7 - 3610QM, with Win 7 Home Premium x64 pre-installed. This computer come with EFI instead of the traditional BIOS. When I bought it, I had 3 visible partitions. C ...
3
votes
1answer
2k views

Ubuntu does not load after installing it alongside Windows [duplicate]

I installed ubuntu 12.04 and I chose to install 'alongside windows 7'. After installation and restart, Windows 7 loaded but there is no sign that Ubuntu is actually installed. Windows 7 is ...
3
votes
1answer
1k views

Ubuntu 12.10 boot hangs at purple screen when integrated NIC (ethernet card) is enabled in BIOS

Here's my weird problem, with a UEFI Ubuntu 12.10 64 bits installation on an Inspiron 14z ultrabook with an integrated Atheros AR8162 ethernet card (NIC). If the AR8162 card is enabled in BIOS, ...
3
votes
2answers
2k views

Dual booting Windows 7 and Ubuntu 12.10 on UEFI laptop

I have a notebook pre-installed with Windows7 and I installed Ubuntu 12.10 on it following the standard installation steps in the installation image. The only problem is that on reboot the machine ...
3
votes
1answer
5k views

How do I EFI boot Zenbook Prime UX31A from built-in card reader?

How do I EFI boot Zenbook Prime UX31A from built-in card reader? Ubuntu Live 12.10 64bit has been copied onto an a SD card which I'm trying to boot from. When I power on my Zenbook and press ESC for ...
3
votes
2answers
7k views

Can't boot from liveUSB when trying to install it alongside Windows 7

I'm very noob at Linux and installing techniques. I want to install 12.04 from bootable usb flash alongside Windows 7 (also tried live CD but not working) but computer is not booting from USB flash or ...
3
votes
1answer
3k views

Comprehensive guide to install Ubuntu 12.10 x64 after Windows 7 on UEFI and GPT disk [closed]

My laptop is currently running Windows 7 64-bit on a GPT disk. Instead of BIOS, the laptop also uses UEFI. After googling around, I cannot find any guide for this problem (maybe my googling skill is ...
3
votes
3answers
5k views

How to install in EFI mode with Encrypted LVM?

I'm trying to properly install Ubuntu 12.04.1 LTS 64-bit PC (AMD64) with the alternate install CD ".iso" on a lenovo Thinkpad X220. Default Hard Disk (with a pre-installed version of Windows 7) has ...
2
votes
3answers
7k views

Ubuntu 12.04 using UEFI

I want to upgrade my machine with a new Motherboard, RAM and Processor. I am planning on doing a clean install of Ubuntu 12.04. The Motherboard I want to use is an Asrock 970 Extreme4 which uses an ...
2
votes
2answers
20k views

How to fix MBR partition prior to Ubuntu Installation? A partition overlaps GPT backup sectors

My main problem is that i have just acquired an ASUS laptop with WINDOWS 7 and I want to install Ubuntu on it. I want to have a dual boot to choose between both Operating systems, I read that it's ...
2
votes
2answers
5k views

Is disabing Secure Boot needed for Ubuntu 14.04 dual-boot with Windows 8 UEFI

I've read some guides on dual-booting Ubuntu and Windows 8, but all of the guides I have read are about older versions of Ubuntu. They recommend disabling Secure Boot because there is a bug in the ...
2
votes
2answers
3k 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 ...
2
votes
3answers
165 views

How do I make my system to prompt me for Windows and Ubuntu, instead of directly booting to Ubuntu?

I have new Lenovo laptop with pre-installed Windows 8. I was facing issues installing Ubuntu l2.04 LTS, so following a thread I made some changes, created some ext4, swap, bootloader partitions and ...
2
votes
2answers
459 views

After installing Windows 8 next to Ubuntu, I can only boot 8 [duplicate]

I bought a new HP laptop with Windows 8 to replace an old laptop running Ubuntu. Using Acronis I cloned the Ubuntu installation over to my new laptop... accidentally overriding the Windows ...
2
votes
2answers
122 views

Does the UEFI partition either “MUST” or “SHOULD” be first for some reason? If so why?

In a non-English Ubuntu-it.org wiki page it's stated that the UEFI partition MUST be always placed at the start of the disk. This is not the case in the English Ubuntu Community Help Wiki page. So ...
2
votes
4answers
2k views

Dual Boot Ubuntu 14.04 with Windows 7 on UEFI

I just built a new computer last week, and this weekend I got around to attempting to install Ubuntu 14.04 on it besides Windows 7. This is my first experience really using UEFI, so I was a little ...
2
votes
1answer
935 views

Can't dual boot Ubuntu with Windows 8.1

I know this isn't the first time anyone has asked this question , I have looked around but that didn't solve my problem. I recently purchased Toshiba c-50a , with preinstalled Windows 8.1. When I ...
2
votes
1answer
10k views

Should I create the Reserved BIOS boot area partition?

I have Asus N550JV with Windows 8 installed. I want to install Ubuntu 14.04 LTS in a dual boot setup. I am not familiar with turning off "fast boot", disabling "secure boot" and enabling "launch CSM". ...
2
votes
1answer
2k views

How can I read the Windows 8 licence key with Ubuntu?

I have a dual boot windows 8 and Ubuntu on my Laptop. Is it possible to read the Windows licence key under ubuntu? (I guess it is hidden in the Windows registry somehow)
2
votes
3answers
5k views

Windows 8 UEFI does not boot [duplicate]

I've just bought a new Toshiba laptop, on which Windows 8 is preinstalled. I've installed Ubuntu Gnome 13.10 and GRUB2 correctly detects Ubuntu and Windows. But the strange problem is that when I try ...
2
votes
2answers
2k views

What have I to do to change from BIOS to (U)EFI after installation?

I have here a new bought laptop. It's the first device with (U)EFI I was working with. At first I did not get the installation running, so I switched back to BIOS legacy mode and installed ubuntu in ...
2
votes
2answers
11k views

Does UEFI support mean Wubi will now work on laptops shipped with Windows 8?

According to this news , there is an official fix for secure boot. Will Ubuntu adapt it? If so, how long should it take? And does it allow booting new computers from Wubi?
2
votes
2answers
70 views

“Error: Invalid signature” when configuring dual boot Ubuntu 14.04 and Windows 10

After installing the Windows 10 upgrade on my laptop, it ruined the grub boot manager, and I could only boot in windows 10. I fixed the boot manager using a live cd with the boot-repair tool, but it ...
2
votes
2answers
1k views

3TB HDD and legacy BIOS

I have new 3TB HDD and motherboard with legacy BIOS. To take advantage of full HDD capacity I have to use GPT partition table. I want to dual-boot Windows 8.1 and Ubuntu 13.10 (64-bit) from this HDD. ...
2
votes
3answers
2k views

efi boot sequence

It seems I somehow kicked out my 'diskdrive boot-option' for my blueray-diskdrive. I tried to fix it with 'efibootmgr' but I'm not getting anywhere. I think I just don't understand how to use this ...
2
votes
2answers
2k views

Can't load GRUB all of a sudden (UEFI problem)

So, the last time I used my Ubuntu installation was last night. Today, as I booted it up, it told me that booting grubx64.efi is not allowed. Easy enough. I know how to re-enable it from my BIOS. ...
2
votes
3answers
15k views

Dual booting Ubuntu 12.04: UEFI and Legacy

I'm trying to dual boot Ubuntu 12.04 (or 12.10) with Windows 8 on a new Sony Vaio, but have run into some problems :) Specifically, my problems seem to come from choosing UEFI or Legacy as the ...
2
votes
1answer
323 views

How to create uefi bootable iso?

I am trying to customize ubuntu-14.04.2-server-amd64.iso, but I am unable to make it uefi bootable. First I tried with original iso file: dd if=/path/to/iso/ubuntu-14.04.2-server-amd64.iso ...
2
votes
2answers
64 views

How can I make Ubuntu not mount efi partition by default at startup?

I've a Asus laptop with windows 8.1 pre-installed, I've managed to install Ubuntu alongside it, and for some days it worked fine. Today, out-of-the-blue, Ubuntu just goes black screen and I'm back at ...
2
votes
1answer
149 views

Question regarding dual boot (BIOS/UEFI, SSD)

I'm totally new to ubuntu and want to ask some things before diving into it: First off I have an Asrock z77 extreme 4 and 1 SSD with Windows 7 installed. On my second (empty) SSD I want to install ...
2
votes
1answer
188 views

How to access BIOS settings with EFI?

I have a new PC, based on a Gigabyte H81m motherboard. With no hdd, I can access BIOS settings by pressing DEL at startup. When I install Windows 8.1 with EFI boot, to access BIOS settings I have to ...
2
votes
2answers
805 views

Install Ubuntu on fresh new SSD alongside with windows on another SSD

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 ...
2
votes
1answer
5k views

UEFI: Catch-22 on a acer aspire v5-531

I was trying to install Ubuntu 14 (64-bit) on a Aspire V5-531, preinstalled Win 8. In the bios I can flag: boot mode UEFI, secure boot DISABLE in this case the neither installation USB card nor cd ...
2
votes
2answers
744 views

Explaination of my “efibootmgr -v” output

I am trying to ascertain where the EFI boot records are located on my Lenovo U41o by using the command sudo efibootmgr -v. Can someone explain it to me? $ sudo efibootmgr -v BootCurrent: 0008 ...
2
votes
2answers
114 views

No Partitions Recognized by Ubuntu in Trial Mode

I recently tried to dual boot my Laptop with Windows 8 and Ubuntu. I disabled the Fast Startup option in Windows 8 and Secure Boot was also Turned Off as my Model doesn't support UEFI. Now I inserted ...
2
votes
1answer
2k views

Ubuntu 13.04 and Windows 8 Dual Boot GRUB options/problems

I installed Ubuntu 13.04 alongside Windows 8 (which was factory installed). I have the options to turn off both UEFI and Secure Boot. The insall worked fine and I am able to use both operating ...
2
votes
1answer
1k views

Different types of file systems for the booting partition

When setting a partition to be bootable (i.e. setting the bootable flag = on), is it necessary to set it's file system as: Reserved bios boot area or EFI boot partition ? The problem I'm ...
2
votes
7answers
56k views

Install Ubuntu in UEFI mode (unable to boot from USB)

I recently bought a Dell Inspiron 15R SE with Windows 8 (64 bit) pre-installed (UEFI supported). I want to install Ubuntu in dual boot with Windows 8. I tried to follow all these instruction and these ...
2
votes
2answers
5k views

Unable to boot ubuntu 13.04 alongside windows 8

http://paste.ubuntu.com/6036784 I used boot repair commands on try Ubuntu terminal. It said "EFI detected check options" I used the recommended repair option. In the end it said "buggy kernel ...