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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BIOS does not shows up Windows 8 EFI after Ubuntu install & incorrect partitioned size

I had window 8.1 preinstalled on my laptop. Recently I also installed Ubuntu alongside to have dual boot. But anyhow after install i.e. restart or due to some alteration; I can not see choices to boot ...
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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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1answer
21 views

How does it work UEFI find Bootloader boot from win 8.1 DVD even UEFI only supportFAT32 filesystem?

I assume UEFI boot win 8.1 DVD to load bootmgr.efi to install,but DVD is CDFS filesystem,UEFI only support FAT32,how does UEFI find the bootmgr.efi?I don't have a UEFI motherboard,how does UEFI load ...
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0answers
14 views

how to properly set up grub2 with uefi on gpt

I've recently installed fedora on new ssd disk. Info: GPT, uefi partitions: (lsblk) NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sda ...
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9 views

Do i need UEFI system for installation Linux mint 17 . I need to dual boot Windows 8 and Linux mint 17 . What can i do ? [on hold]

I have tried to instal Linux mint from the boot device option . i did not choose UEFI ,then its showing me that X server not found ( graphical user interface is not compatible ) . SO is it reason ...
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0answers
3 views

No efivarfs filesystem is mounted

My Gentoo x64 system is boot from EFI, and I can see files in /sys/firmware/efi/efivars. But when I try efi-readvar, I got No efivarfs filesystem is mounted In my kernel configure file, I have ...
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1answer
39 views

win8/kali uefi/legacy confused

I'm not a big 'Power user' of my PC so bear with me. I've decided to try and learn Kali Linux to hone my penetration testing skills. I made a USB Live OS to start to toy with it. A couple of days ...
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0answers
15 views

Clone OS on the same disk

I've cloned the OS partition (Windows 8, upgraded to 8.1) on the same SSD, in order to use the original partition for my office and the other for everything else. I used MiniTool Partition Wizard and ...
0
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1answer
42 views

gigabyte z77x-d3h not recognising hdd in bios

I have sata hdd and the bios is not recognising it. The hdd works as I have plugged it into a working pc and it appears. I have formatted in NTFS and run scandisk, no errors. is there any specific ...
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0answers
7 views

Boot order changed after pulling harddrive out to install Win 10 Tech Preview to different harddrive

Ok, so to install the Windows tech preview to my other harddrive I decided to pull my current one out, install Win TP to a spare 250 gig, and after it finished I put my original harddrive back in. ...
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0answers
28 views

All change for UEFI/GUID? Windows 7 and Linux new build multi-boot.

Thanks to all for creating such a useful and interesting website. I notice quite a lot of Linux, W7 and UEFI experts on this forum so I'm wondering if I can get a little input and advice ahead of my ...
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1answer
65 views

Create UEFI-bootable DVD with Windows 8.1 iso

I'm trying to set up a UEFI-boot of Windows 8.1. However, I seem to be unable to install it with a USB drive (previous question), and when I try to install with a DVD (the same iso), I don't get the ...
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1answer
73 views

Is it possible to bypass the 5-second delay in EFI shell?

Due to my unusual hardware configuration, i am forced to set two PCI registers using the mm EFI command before being able to boot Windows. Right now i have a build of the EFI shell (my mobo does not ...
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1answer
92 views

Installing Ubuntu 14.04--Grub Rescue Error after failing to turn off secure boot [SOLVED]

I am not able to start the operating system .Whenever I try to start the operating system it shows the following error: file /boot/grub/i386-pc/normal.mod not found Entering rescue mode... grub ...
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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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1answer
2k views

How to find out if UEFI is corrupt? If it is, how to recover it?

I installed Ubuntu 13.04 on my Win 8 Pre-loaded system as dual boot. At this point I could no longer boot Windows 8. I tried using boot-repair, but it did not work. I have basically tried everything I ...
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4answers
35k views

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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2answers
74 views

Do (USB) drives need a master boot record to boot in UEFI mode?

I was reading this tutorial and this (Option Two from there) and as far as I understand, making a Windows USB drive bootable from UEFI requires: rewriting the partition table and formatting as FAT32 ...
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0answers
20 views

UEFI shell mode with no colon key

I have a newly built PC with a UEFI-enabled motherboard and I'm having trouble getting my DVD drive to boot into UEFI mode so I opted to boot into UEFI Shell to manually start the DVD in UEFI mode. ...
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1answer
2k views

Lenovo Windows 8 EFI restore from image

First time here. I have bought e530 with windows 8 and the first hour of work with it i have a problem. I have ssd with windows 7 which i want to use with my new e530. I have made a sysprep of win 7 ...
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1answer
49 views

Avoid UEFI Bios Hell?

It seems so many people are having problems with UEFI these days, i'd be tempted to find hardware that doesn't come with it. Installing Linux alongside Windows is once again a real mess. Maybe the ...
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0answers
39 views

Dell Vostro 5470 - unable to install Windows 8

Has anyone experienced issues with installation of Windows 8 with Dell Vostro 5470? I bought it today, it came preinstalled with Ubuntu 12.04. The issue, as I understand and was able to Google out, ...
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2answers
767 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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1answer
73 views

Cannot enter BIOS setup on HP ENVY Sleekbook 4, EFI partition broken

I'm running into great trouble with an HP ENVY Sleekbook 4 with an existing Windows 8 installation failing to boot after installing Ubuntu 14.04, and data in the EFI partition is broken (the ...
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0answers
21 views

Caution: invalid backup GPT Header (gdisk)

Each time I boot into my Ubuntu installation, when I open gdisk I am given the messages: GPT fdisk (gdisk) version 0.8.8 Type device filename, or press <Enter> to exit: /dev/sda Caution: ...
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0answers
59 views

how to check if motherboard has bios or uefi by using command prompt

I broke my laptop to the point where windows would not boot, recovering does not work, now I'm trying to reinstall windows 8 but it's giving me 'windows can't be installed because it's MBR and not ...
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2answers
81 views

Move Windows 8.1 installation to another PC - is it possible to avoid a re-install & just move the hard drive?

Last year I've installed a clean copy of Windows 8 (later upgraded to 8.1) on a new laptop. This process was challenging because the laptop included Windows 8 pre-installed (plus bloatware), and my ...
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1answer
3k views

Fedora 19 (you have not created a bootloader stage 1 target device)

I want to install fedora 19 to my HDD but I get errors: you have not created a bootloader stage 1 target device sda6 must have one of the following disklabel types: GPT. I tried: Create 1-2 mb ...
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0answers
48 views

Extra boot options in BIOS

I've got two extra boot options in my BIOS called ubuntu. There is a picture of them for reference, and they've got a portable hard drive icon in UEFI BIOS. Does anyone know how to get rid of them? ...
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87 views

How to generate Asus BIOS rescue password?

I have an ASUS laptop. The problem is that I've forgot my BIOS password. I've clicked Win+r in order to get a date upon which a rescue password would be generated. The date is that of today ...
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1answer
19 views

uefi: linux live cd/usb blackscreens

I have a Medion Akoya P2310 D PC with Windows 8 pre-installed, and I have been trying to install Ubuntu alongside it as well as making a third partition for data storage. After struggling with UEFI ...
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0answers
20 views

How to make arch linux use my EFI partition?

I try to install Arch Linux in a Liva mini pc kit -- basically a 64bits intel-based minit computer. That computer has 4 partitions inside an eMMC memory. I've tried to use one of those partitions for ...
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281 views

Cannot boot a Windows UEFI installation with Intel Graphics HD 4000 without CSM

Problem I am attempting to convert my Windows 8.1 Pro installation from BIOS to UEFI. I followed these instructions. However, I cannot boot without the enabling the Compatibility Support Module ...
0
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1answer
36 views

How do I boot into UEFI without going through Windows on my laptop?

So I installed Ubuntu on my Windows 8 laptop in a dual-boot configuration for some time, and tonight, I decided I would uninstall Ubuntu. Well, I've managed to lock myself out of Windows and I'm stuck ...
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1answer
106 views

Attempting to install Windows 8.1 as secondary OS, misdetects EFI partition

Currently I have Arch Linux installed as my primary OS, and wish to install Windows 8.1 as a secondary so I may utilize certain special hardware (a capture card which has no Linux drivers at the ...
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0answers
29 views

Asus M5A97 LE R2.0 failure to post with peculiar PCI card

We have a couple of peculiar PCI cards being used in a circ. 2007 proprietary phone/radio communications logging appliance(WindowsXP PC). Both the card connectors and the old motherboard sockets ...
1
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1answer
27 views

How can I change my BIOS startup screen? How can I backup my BIOS?

I want to know all the safe ways to change the bios startup screen for my lenovo Y500. Instead of lenovo's logo can I have a GIF? Can I have sound with it? Can I time it such that the screen is blank ...
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2answers
2k views

Can't install Windows 7 with UEFI off on GPT drive

I need to have a dual boot with Ubuntu and Windows 7 on my notebook with UEFI. I had to turn UEFI off to install and boot Ubuntu. Now I'm trying to install Windows 7, but it says it can't be ...
1
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1answer
40 views

How to make Windows 8 Show Advanced Startup On Boot?

I can't seem to find a way to do this, I already know how to initialize an advanced startup in Windows 8 and I have also gone through this question, but that's not what I want, I want the advanced ...
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1answer
52 views

How is UEFI pronounced? [closed]

UEFI stands for unified extensible firmware interface. Most people know about BIOS (Basic Input/Output System) and to my knowledge pronounce it universal as 'by-ohs'. I've looked around for the ...
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1answer
46 views

Ubuntu install on disk with Windows 7 UEFI

When I'm trying to install Ubuntu on computer with UEFI and Windows 7, I see no partitions! But when I'm running Ubuntu in live mode file system detect all partitions right (screenshot below). What ...
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1answer
70 views

How to enable Fastboot again on BIOS?

I have recently replaced the hard drive of my Asus Zenbook UX303LN with an SSD drive and managed to do a clean install of Windows 8 thanks to the link below: If USB is not listed in BIOS as a boot ...
11
votes
3answers
6k views

Hiren's Boot CD with UEFI support?

I am a long term user of Hiren's Boot CD, but the CD does not support booting on UEFI/EFI/SecureBoot hardware, is there some kind of update/patch to apply to the cd image to be able to boot without ...
4
votes
2answers
202 views

Adding X.509 certificate to UEFI secure boot database?

I have recently installed Fedora 20 on a custom desktop PC with a ASUS Z87-K motherboard. Given some commonly known bugs, I have installed the NVIDIA proprietary driver for my GeForce 630, and ...
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4answers
2k 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
2k views

How to edit the Boot Graphics Resource Table / Edit windows 8 BOOT LOGO?

I want to edit the screen which is displayed when windows 8 (starts) loads (/loading). As for now it has the Toshiba logo, I want my custom logo or the windows default logo. I have found that UEFI ...
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0answers
81 views

Dual operating system, cannot boot Windows 8, tried Boot-Repair-Disk and Windows repair, GRUB, EFI

I used to have one hard drive(1TB) with Windows 8(64bit) installed, then i added a new hard drive(256GB) and tried to install Ubuntu in it. After installing Ubuntu to the new hard drive, I can only ...
0
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1answer
308 views

How to recover Windows Boot Manager after a Mint installation gone wrong

Yesterday, my cousin wanted me to install Linux Mint onto his Windows 8 Lenovo laptop so he could dual-boot Linux Mint and Windows 8 so he could get some hands-on experience with Windows 8. I've ...
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1answer
8k views

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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2answers
508 views

Want to buy Asus H81M-PLUS motherboard and i3-4150 CPU; how to make sure it'll work?

I want to buy an ASUS H81M-PLUS mainboard and an Intel i3-4150. The CPU is an Haswell Refresh CPU, but the mainboard needs a newer BIOS version to support the CPU. I expect it won't be shipped with ...