Tagged Questions

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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1answer
53 views

What does POST mean in the following sentence? [on hold]

I don't like how this question is phrased, but my main issue here is POST.I know what each of them are beside POST, but how can I explain that? Furthermore, how can I explain UEFI? Isn't that a boot ...
0
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0answers
26 views

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 ...
0
votes
1answer
31 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 ...
0
votes
0answers
19 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 ...
0
votes
0answers
4 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 ...
-1
votes
0answers
24 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
votes
1answer
50 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 ...
0
votes
0answers
12 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. ...
0
votes
0answers
39 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 ...
0
votes
1answer
111 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 ...
1
vote
1answer
129 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 ...
0
votes
1answer
49 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 ...
2
votes
2answers
87 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 ...
1
vote
0answers
23 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. ...
0
votes
1answer
54 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 ...
0
votes
0answers
69 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, ...
0
votes
1answer
114 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 ...
0
votes
0answers
30 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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votes
0answers
68 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 ...
1
vote
2answers
94 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 ...
0
votes
0answers
155 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 ...
0
votes
1answer
27 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 ...
0
votes
0answers
49 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? ...
0
votes
0answers
24 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 ...
0
votes
1answer
43 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 ...
1
vote
1answer
118 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 ...
0
votes
0answers
33 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
vote
1answer
33 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 ...
1
vote
1answer
43 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 ...
-1
votes
1answer
58 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 ...
0
votes
1answer
93 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 ...
-3
votes
1answer
49 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 ...
0
votes
0answers
92 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
votes
1answer
271 views

ASRock UEFI Setup Utility No option to disable secure boot

I want to downgrade my computer from Windows 8.1 to Windows 7. I originally had Windows 7 on my desktop, then upgraded to Windows 8, then Microsoft basically forced me to upgrade to Windows 8.1. I was ...
1
vote
1answer
67 views

Can a computer that uses EFI/UEFI rather than BIOS run a real mode OS?

Title says it all: could I get away with installing a real mode OS such as MS-DOS on a EFI-based computer? I understand that EFI-based computers still use "BIOS emulation" for compatibility reasons, ...
0
votes
1answer
62 views

How to install Windows in a fresh formatted hard drive?

I was having problem concerned with dual boot of Windows and Ubuntu because I had Ubuntu already installed in my system. Well, there was something wrong with my boot/efi partition's VBR or my hard ...
0
votes
0answers
25 views

Hardware issue with motherboard BIOS resets

I have a motherboard AsRock 970 Extreme 4. BIOS defaults again and again and it doesn't store settings which I set. I tried to change jumper to Clear CMOS position and after that change it back to ...
0
votes
1answer
127 views

Acer Aspire keeps rebooting when bootable USB inserted

So I have an Acer Aspire V5-131 and long story short (really, it's a long story!), I decided to do a complete wipe of the HDD (using dban). So right now the HDD is absolutely wiped, there's nothing on ...
0
votes
1answer
37 views

Using multiple OS's on a UEFI secure boot system

I wanted to install Ubuntu on a windows 8.1 system but I don't want to use GRUB or replace my current boot loader. Can I install multiple OS's without showing a prompt to select An OS unless I press a ...
0
votes
0answers
48 views

Black margins around the image on monitor during system boot up

I have recently purchased a new video card. After i switched to it, my monitor shows black margins around the image near edges of the screen during system boot up. Once OS loads a proper driver for ...
1
vote
1answer
198 views

Normal ISO to UEFI bootable ISO converter?

It's easy to Google Windows 8 password recovery tools. However, the PC I'm working on right now doesn't support legacy boot and can only boot from GPT partitioned USB sticks. I'm using Rufus for ...
0
votes
0answers
15 views

UEFI boot into last used os

I have windows 8.1 side to lubuntu. There is option in uefi to boot by default to the last used operating system? (I don't want to use grub or windows boot manager)
0
votes
1answer
497 views

Why can't I install Windows 8 on an UEFI machine from an MBR based USB disk?

Just tried to install Windows 8.1 on an UEFI machine/GPT disk. I used a 2 TB MBR-based USB drive to contain the installer (FAT32 partition with Windows 8.1 install files). I got as far as selecting a ...
0
votes
1answer
61 views

AMD Radeon video card/display only works with UEFI Fedora

When I was using my onboard graphics, Intel HD4600, I was able to set up a dual boot on my SSD with a legacy BIOS Windows 8.1 64-bit installation and legacy BIOS Fedora 20 64-bit installation. I put ...
0
votes
0answers
35 views

How can I tell if a Windows 8.1 machine has 'full' UEFI?

I've seen a Windows 8.1 machine that has a MBR format drive and a 'Legacy' BIOS, and it has fancy graphics that look like UEFI. If I have a GPT format drive is it still possible to have the old style ...
0
votes
1answer
356 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 ...
2
votes
2answers
16 views

Difference between UEFI and BIOS architecture

How does the UEFI offer an advantage over BIOS architecture? Why is it so difficult install Linux(read Ubuntu) as a dual boot option on a UEFI Windows 8/8.1 PC? I say it's difficult because of this ...
0
votes
0answers
376 views

How to add EFI entry by efibootmgr?

I installed stand alone Ubuntu on my laptop by formatting the HDD. Now HDD is not in my EFI menu. From a Live USB environment, I added the EFI entry, even by chroot. However, the EFI menu is reset to ...
0
votes
0answers
128 views

Installing Windows 8 on SSHD. Drive not recognized?

I've been trying to install Windows 8 on a new Seagate 1TB SSHD that I got. I managed to make a UEFI bootable USB drive, and installing Windows 8 went fine. But then after the installation it tried to ...
0
votes
0answers
77 views

In Windows 8.1 what are the differences between UEFI, and the UEFI style Legacy BIOS?

When using Legacy BIOS (and MBR format disc) the BIOS still looks like UEFI, has a mouse pointer, and appears to function in a similar way. I believe that you can only use Secure Boot with UEFI on a ...