The Unified Extensible Firmware Interface BIOS (UEFI) is a specification that defines a software interface between an operating system and platform firmware. UEFI is a replacement for the older BIOS firmware interface present in all IBM PC-compatible personal computers

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rEFInd takes 10 seconds to load

I have a Lenovo ThinkPad T430 (Core i5, Ivy Bridge). I converted my system from BIOS-MBR to UEFI-GPT. This worked perfectly. I have rEFInd configured to load both Arch Linux and Windows 8.1. This ...
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Windows 8.1 UEFI x64 is not able to boot-up UEFI Images

The question appeared after asking this one. It seems that the Win8.1 UEFI x64 Boot Manager is unable to boot anything other than the windows itself (winload.efi). Trying to launch any other UEFI ...
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1answer
9k views

Repairing Windows 8 EFI bootloader after installing Fedora 20

Background System is self built, so no OEM stuff. Windows 8 was installed first, hard drive was also newly set up as GPT. Later on, I installed Fedora 20 which installed GRUB on a BIOS Boot ...
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1answer
921 views

Confusing BIOS and UEFI

I've just bought an Acer Aspire E1 (572) laptop four days ago, and ran into that UEFI/BIOS problem. It was shipped with Linpus Lite OS by default. I had it installed a Win 8 pro on it, after ...
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4answers
3k views

Installing Win 7 To GPT and Why My UEFI Mobo Won't Boot From CD Unless In Legacy Mode

Double whammy question comin' at ya: Firstly, my UEFI bios on my Acer laptop absolutely refuses to boot from CD/DVD unless I revert to legacy mode. Disabling secure boot and leaving UEFI enabled ...
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1answer
3k views

Windows 8.1 UEFI x64 & Windows XP x64 Dual-Boot

I want to add option to boot in XP into the Win8.1 boot menu. So I have 2 drives: On the first one I have installed Windows 8.1 x64 UEFI; And on the second - Windows XP x64. Following is what I ...
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2answers
379 views

Fedora 19-1, Aptio UEFI and non-CSM Boot

I'm trying to install Fedora 19 on a UEFI computer. The laptop is an ASUS Q500A with Aptio UEFI (firmware or BIOS) version 208, GOP 3.0.14.1015 (Aptio is American Megatrends). I downloaded the latest ...
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1answer
923 views

How many EFI System Partitions (ESP) can a computer have?

I'm trying to set up dual/multiboot on an UEFI laptop that came with Windows 8 installed. I'd like to operate with Secure Boot enabled. I can install/configure OS'es with SecureBoot disabled (but I ...
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1answer
64 views

Virtual Machine UEFI can't type “\”

I am trying to install SteamOS in Oracle VirtualBox. I know how to do it but in the UEFI, it won't let me type "\" it lets me type any other character but not this. Any ideas?
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Tails “clone” LiveUSB wont boot

I'll try to be as clear as possible. I did install Tails to a USB, then I cloned it over another USB and thats where the problems started. The "clone tails usb" won't start in my laptop. I did try ...
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4answers
12k views

Cannot install CentOS 6.5 using UEFI usb boot

I am trying to dual-boot CentOS 6.5 on my desktop that is currently running Windows 8.1. I have two storage devices: an SSD that has my Windows installation, and an HDD that has all of my data. Both ...
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2answers
1k views

Accessing CentOS installation

I use an SSD as my boot device, and I have a HDD that I use for data. Both drives are set up using GPT/UEFI. I installed CentOS to its own partition on the HDD, and I have Windows 8.1 installed to the ...
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2answers
6k views

Getting to BIOS on the Lenovo IdeaPad U530 Touch in order to install Arch Linux

I have a Lenovo IdeaPad U530 Touch with Windows 8 preinstalled. I tried to install Elementary OS, but discovered that the WiFi support wasn't there, so I decided to switch to Arch Linux. The problem ...
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0answers
745 views

Dual Boot Windows (any Version) + Linux (any Distribution) with GPT/UEFI, full system encryption and shared partitions

I didn't think that my requiremetns were too special, but my search really didn't yield too many results, so I still got some quesitons unanswered. Basically I'm getting new hardware and will do a ...
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4answers
1k views

Linux on external drive / UEFI

I'm stuck on a problem : I want to make my external USB3 HDD self bootable. For now I must go through UEFI boot option. Explaination of my setup: I have a Win8 Asus Laptop with UEFI. I have ...
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1answer
11k views

Partition Issue with Windows 8.1 Installation

I bought a brand new machine and I wanted to install Windows 8.1 on a single 4TB HDD. I want to partition the drive using the following layout: Drive 0 Partition 1: System Reserved - whatever the ...
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0answers
194 views

How to install arch with EFI and change system to ubuntu

This question is weird. The only Linux distribution working on my MSI GE60 with windows 8 and Uefi is Arch. I cannot install other distributions because I get a black screen on install. My problem is ...
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1answer
2k views

MSI GE60 install Ubuntu along with Windows 8.1

I want to install Ubuntu 13.10 on my MSI GE60 laptop, but it doesn't see my USB. In another PC I see them. I tried to but with UEFI CSM (compatibility support module) or something like that, but it ...
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2answers
541 views

How to boot windows after uninstalling ubuntu?

I am using windows 8 system and I tried to install ubuntu by making a separate partion. But after deleting the partitions created for Ubuntu, it is still trying to load ubuntu and not windows. If I ...
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1answer
357 views

Boot from Windows Setup files that are located on a partition

Here's the situation: I am on a Lenovo Ideapad Yoga 13 (1st gen). I do not have Windows installed on my computer, I have Ubuntu. I currently use Grub2 and/or refind to boot Ubuntu. I would like to ...
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1answer
992 views

Install Ubuntu 13.10 64-bit without CD, DVD or USB

I am trying to get Ubuntu 13.10 onto my laptop, but do not have a CD, DVD or USB drive at hand. When I had this problem previously, I used UNetbootin, however when I tried doing that this time I ...
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3answers
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What options do I have for flashing an UEFI BIOS chip on an Asus mobo?

I have a bizarrely borked ASUS board (M5A97 LE R2.0) that is stuck in a half way state between two BIOS versions. I cannot enter the BIOS settings page (the system locks up after drawing half of it). ...
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1answer
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Installing Arch Linux, issue with `modprobe efivars`

I am trying to install Linux on my new Vaio Pro which is an adventure in and of itself. I am trying to install Arch Linux with UEFI. I am following this tutorial (though I am using newer 2013.11 Arch ...
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1answer
4k views

Can't boot FreeBSD 10 after install on UEFI + GPT

I have tried to install FreeBSD on Asus G75VW. Setup will partition the disk, install everything. At reboot I see this: "Reboot and select proper boot device" "or Insert Boot Media in selected boot ...
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1answer
262 views

ASUS F402CA-WX102H random crashes after UEFI Secure Boot disabled

I have a ASUS F402CA-WX102H notebook. I disabled UEFI Secure Boot, booted on USB and installed Debian Wheezy (double boot with Windows8 for now). The installation process worked fine, but the ...
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Clean install of Windows 7 Pro 64-bit on a UEFI with GPT laptop?

I’m currently pulling out hairs about a problem with my wife’s new Samsung Book 9 laptop. it comes preinstalled with Windows 8. She wants Windows 7 Pro. I’ve board a Windows 7 Pro 64-bit for her and ...
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1answer
81 views

Windows 7 Installer capable of UEFI mode

I've been looking for an installer of windows 7 like in this video that has the files required for UEFI mode. Sample image: I've tried different version of 64 bit Win7 such as (Home, Pro, ...
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1answer
438 views

Boot manager does not present me with OS choice

I have installed Linux Mint 15 alongside Windows 8.When installing Mint the option I chose said install Mint alongside Windows 7 which I chose. Once the system rebooted after the install,I was ...
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2answers
972 views

Is TianoCore+coreboot a true open source UEFI?

There has been a lot of controversy surrounding UEFI, but like it or not, it's becoming the only option when it comes to generally available desktop motherboards. I've been avoiding UEFI mobos for ...
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0answers
25 views

How to prevent Windows 8 of erasing GRUB? [duplicate]

I'm doing dualboot with Ubuntu and Windows 8 on my DELL Laptop. EFI is enabled, secure boot is not. My partitions are GPT. Everything seems to work for some time. After some normal use, GRUB stops ...
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2answers
244 views

Is it safe to purge EFI from a laptop?

My laptop is a Dell Latitude E5430 that supports both EFI and "legacy" boot modes. I'd like to removed win8 and it's troublesome EFI stuff and replace it with a Win7. I'd like to keep my ubuntu ...
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4answers
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How can I use TrueCrypt under windows 8.1?

I know that TrueCrypt doesn't support windows 8 because some systems have UEFI enabled. It seems that if UEFI is disabled or Windows 8 is installed on an non UEFI system TrueCrypt just works fine in ...
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1answer
3k views

grub-efi refuses to chainload Windows 8.1

I have installed LMDE (with grub in MBR) after I installed Windows 8.1. I then installed the grub-efi package and added the custom Windows options: #!/bin/sh exec tail -n +3 $0 menuentry "Windows" { ...
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1answer
647 views

Windows 7 boot manager not localized on UEFI system

I'm running an Italian version of Windows 7, which includes a localized boot manager. However, I recently replaced my motherboard with a new one based on UEFI firmware instead of BIOS (Asus Z87 ...
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1answer
582 views

Does UEFI prevent dual-booting/Ubuntu not to recognize Windows 7?

Installed Windows 7 on a laptop with UEFI. Then went to install Ubuntu on another partition- Ubuntu cannot see the Windows 7. I have done this many times before and it works fine. Would this be ...
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1answer
3k views

Move EFI System Partition to another drive

I had a Windows 8 installation on an HDD, using UEFI as boot. The HDD has the following GPT table: DISKPART> list partition Partizione ### Tipo Dim. Offset --------------- ...
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2answers
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Enabling UEFI mode in BIOS after having set it to CSM mode, and not being able to get back into BIOS

I set my BIOS to CSM only mode after being unable to boot into windows after upgrading it to 8.1 and not being able to boot from a USB stick to repair it. I ended up putting in a formatted SSD, and ...
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1answer
6k views

UEFI USB only boots when formatted FAT32

I am trying to create UEFI bootable USB sticks of Windows 8. What I do is the following: diskpart select disk 1 clean convert gpt create partition primary format quick fs=ntfs I then just dump the ...
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1answer
468 views

Linux Live CD only works when Windows is in Legacy mode?

I have asked a similar question before and no one was able to help me but I think it was because I wasn't phrasing it properly. This is a better restatement of the question. I have Windows 8 and Linux ...
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1answer
3k views

Windows boot manager and two hard disks

here's my situation: I had an HDD with Windows 8 installed (UEFI mode). I bought a SSD and wanted to do a clean install of Windows, so I thought that disabling the HDD and leaving the SSD as the only ...
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1answer
1k views

Ubuntu Update causes “Operating System Not Found” on UEFI system

I have an Ubuntu Edge E320, and when I got it, I remember hours of hugs frustration because it was very difficult to get an OS onto it. Eventually, I made to install Ubuntu 12.10. I updated to 13.04 ...
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1answer
49 views

Putting an SSD with Win 7 in a new Win 8 laptop [duplicate]

I have an older laptop (a TP E420) with a 64GB SSD running Win 7 Home Premium. Say I buy a new Windows 8 laptop that doesn't have an SSD. Can I just take the HDD out and swap my extant SSD in, and ...
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0answers
357 views

Moving a system partition to new Hardware with Win8/UEFI, without screwing up BCD

My existing Win 8 install is historically installed on a MBR dynamic disk (that's so I can soft mirror the data partition which is on the same disk). I just bought a new motherboard/new HDD, and I ...
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1answer
592 views

Boot Windows 7 with UEFI

I am trying to install Windows 7 x64 SP1 on a UEFI enabled Dell 6430 laptop (yes, I know I can set legacy options, but I specifically need a UEFI image for capture) and the installation disc stops at ...
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0answers
85 views

Installing Ubuntu inside Windows7

I have recently bought an HP Pavilion g6 laptop that comes with windows 8 running on it, but I formatted and installed windows 7 instead. Now that I want to install Ubuntu 12.04 inside windows 7 (like ...
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1answer
3k views

Unable to start Windows - UEFI boot problems with Linux + Win8

I have installed openSUSE (12.2) on a PC that has Win8 installed. At the beginning there were problems and it didn't start, after some "fixes" Linux started but when going in the grub2-efi Windows 8 ...
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2answers
1k views

no OEM certificate found in windows 8

i want to clean install win 8 on my new lenovo, i have heard that OEM key is stored in the bios and is automatically applied on a clean install. so i decided to save the OEM CERTIFICATE using a ...
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1answer
300 views

Windows 8 offers to format Linux partition [duplicate]

I installed Windows 8 and Linux dual boot on UEFI system. Windows 8 recognizes Linux (btrfs) partitions as unformatted D: and E: and offers to format them when I accidentally click on them. I'm used ...
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2answers
607 views

Removed Windows 8, installed Linux Mint 15. Error: “/EFI/Microsoft/Boot/grubx64.efi”

Yesterday, I tried to remove Windows 8 and installed Linux Mint. It was ok untill I restarted. My hardware: Dell Vostro 3560 Windows 8 Pre-Installed SSD 32 GB (mSata) The problem is that after the ...
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1answer
149 views

EFI Win 7 and 8 two HDs secure mode

How can I create a 2 hard-drive dual boot system with Windows 8 and Win 7 64bit in UEFI secure mode? I want to be able to choose which hard-drive with F12 (like with non-UEFI systems). Will I see ...