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)

0
votes
0answers
7 views

GRUB not appearing after installing Ubuntu 15.04 on Windows 10 dual-boot

I have recently upgraded from Windows 8.1 to Windows 10. I tried to install Ubuntu 15.04 in dual boot configuration. PROBLEM: The system directly boots into Windows without the GRUB screen appearing. ...
0
votes
0answers
5 views

Screen shuts down after some seconds when trying to install into my MSI Ghost GS60

I acquired a MSI Ghost GS60 with a Nvidia Geforce GTX 965M. I am trying to install Ubuntu from a UEFI USB flash drive. The flashdrive boots smoothly, both to try ubuntu, or to install it. However, in ...
-2
votes
0answers
27 views

Cannot dual-boot Kali Linux and Windows 8

I installed kali linux with grub dual boot with windows 8 on EFI based computer ok each time i boot into my computer it's give me 2 options I decided to delete kali partition and install ubuntu i ...
2
votes
2answers
33 views

How to enable Secure Boot without issue?

I read here that it is essential to have Secure Boot enabled: However I find that when I enable Secure Boot, it changes it so that systems can boot with UEFI boot, but not Legacy, it also disables ...
3
votes
1answer
32 views

Changed the UEFI motherboard on a dell laptop, now it says no OS detected

My laptop was running the latest Ubuntu, because of a minor issue, the motherboard was replaced. The new motherboard has the same specifications as old. But after replacing, the OS is not detected. ...
1
vote
1answer
27 views

ASUS Netbook - Loading Ubuntu (replacing Win8.1)

I'm still new to Ubuntu. I have 3 identical ASUS netbooks and have gotten Ubuntu loaded on 2 of them. The last one came with Win8 and I can't seem to get either the USB stick ISO or the USB disk drive ...
1
vote
0answers
20 views

Cannot boot 15.04 from Grub2 on UEFI

Here is how my system is set up (GPT partitioning): First 32 GB: Windows 10 Professional x64 partitions and EFI FAT partition Next 24 GB: Ubuntu 15.04 x64 root ext4 partition Next 8 GB: swap Rest of ...
-1
votes
0answers
28 views

windows 10 not booting after Grub2 upgrade

I have two hard drive, with 3 OS: Ubuntu 14.04, Ubuntu 12.04 and Windows 10. Ubuntu 14.04 is on one drive, while Ubuntu 12.04 and Win 10 are on the second HD. [I also have some old small hd that i ...
2
votes
1answer
30 views

I'm confused about my bootloader [on hold]

Sometimes I reset my desktop and press F2 and then GRUB loads up. But some other times I reset and press F2 and then the Asus UEFI BIOS Utility loads up. I'm new to the Asus UEFI Bios utility and ...
1
vote
0answers
38 views

Ubuntu 15.04 Installation Problem, HP Envy 15 [duplicate]

This is my first system with UEFI.... Laptop name: HP Envy 15 Notebook PC (with Touchscreen).... OS installed: Windows 10, self installed .... Processor: Intel i7-5500U @ 2.40GHz (4 CPUs) .... Ram: 8 ...
1
vote
1answer
11 views

Triple boot - change of motherboard

I am (was) running an oldish system with a Gigabyte GA-M61SME-S2 motherboard, an AMD athlon processor and traditional BIOS. I have a triple boot system on a 1TB hard disk: Windows 7, Ubuntu 14.10 and ...
0
votes
1answer
30 views

Restore EFI from Windows after Windows 10 upgade broke boot list?

I updated to Windows 10 late July, and it deleted all of the boot entries on my computer. I was able to find the correct Windows boot efi file, and added the option to boot, but I could not find the ...
-1
votes
0answers
24 views

deleted linux mint from win 8.1 dual boot and cannot reinstall linux [on hold]

Until yesterday i had a dual boot of windows 8.1 with linux mint 17.2 Rafaella Cinnamon x64bit.Via the terminal i deleted something that i shouldn't and then when i rebooted the pc ,linux stuck at the ...
0
votes
1answer
17 views

Ubuntu install erase disk fails

I am trying to install Ubuntu 15.04 on my computer but it fails. I used Win 8.1 before on that SSD. My pc starts the installer in UEFI mode. The installer says that there is no other OS on my pc and ...
0
votes
0answers
11 views

grub2 insmod Secure Boot

Will grub2 load signed grub modules when the system is set to Secure Boot? Where are signed grub modules? How can I tell if a grub module is signed? I have my system set up to boot Windows or ...
0
votes
0answers
8 views

Toshiba laptop not booting directly to Ubuntu

After I reinstalled my hard drive, after I encountered a problem with it, which was caused by my laptop's battery running all the way down (Toshiba Satellite - has this been known to happen before?), ...
-1
votes
0answers
14 views

weird dual boot start issue

so my pc is bust, replacement parts on the way, and im on my laptop. my laptop dual boots ubuntu and windows. so i want into windows, but when i select it via grub, it throws this error. windows ...
0
votes
0answers
33 views

how to remove the only OS ubuntu14, install win8.1

dual win8.1 and ubuntu 14 used well, then I delete the ubuntu partition on disk managerment of win8.1. reboot it. then appears grub and can't enter BIOS, maybe is related to uefi. I accidently choose ...
0
votes
0answers
19 views

Windows 7 goes back to GRUB after Ubuntu 14.04.2 64bit alongside install

After installing Ubuntu 14.04 ,my Win 7 partition shows up correctly in the GRUB menu, but when I select it I get a screen that displays "Windows is loading files" with a progress bar, then I get a ...
0
votes
0answers
25 views

Installing on a new asus laptop with windows 8.1

First of all Thanks to you all in Ubuntu. I have been/my company have been using Ubuntu since 2006 (before debian/hp/sun) And it has always been very easy to install Ubuntu on a work station or ...
-1
votes
0answers
14 views

Portable biolinux not booting in Dell inspiron 3000

I have been trying to install a portable bio-linux OS on external hdd. I have followed the instructions given for portable ubuntu/bilinux installation which has been sucessful and also made sure the ...
0
votes
0answers
8 views

Can not choose Mac OS mavericks because rEFIt menu not appearing.

I recently ran software updater on Ubuntu 14.04. I rebooted for the changes to take place but this time, while starting up, I was directly taken to the Ubuntu Grub loader. Before the running software ...
0
votes
1answer
128 views

How can I dual-boot Windows 10 and Ubuntu on a UEFI HP notebook?

I've got an HP Pavilion Touchsmart notebook that came with Windows 8. I've upgraded to 8.1, and now I want to dual-boot an Ubuntu distribution with Windows 10. When dual-booting with Windows 8.1, the ...
0
votes
1answer
20 views

Location of grub on gpt partition

As far as i undersood the grub program is located fully in the efi partition if i have gpt partition scheme instead just as a link like it was in the older mbr. So now if i remove linux partition will ...
0
votes
0answers
35 views

How to install Ubuntu on Asus X550Z (with UEFI)?

This laptoop has UEFI. I can't install ubuntu on this laptop as I always did. I've removed Windows, I created bios-boot partition, turn off safe boot, used Boot-Repair and it doesn't not help.
0
votes
0answers
34 views

Ubuntu 14.04 dual boot with Windows 10 on UX501J

I have read several questions/answers on here and around the internet and have not been able to get a satisfying solution. I have a "signature edition" Zenbook Pro UX501J. It came with Windows 10 ...
2
votes
2answers
71 views
+50

Installing Ubuntu on Win 8 Tablet

I know this may seem a little bit duplicated, but my problem is more worse. It's like this: I have got a Win 8 tablet pc, which uses EFI boot option instead of UEFI. But what make it worse is that it ...
0
votes
0answers
30 views

Dual booting Win 10 / Ubuntu - Even after Boot Repair twice, it doesn't boot to GRUB

I have a Lenovo ThinkPad Yoga 15 and as the title says, I want to dual boot this distro alongside Windows 10. Thing is, I've been having a problem with the boot order. It always goes into Windows 10 ...
0
votes
2answers
152 views

Ubuntu 14.04.3 LTS with Windows 10 UEFI GUID custom installation

I have used Ubuntu for many years and someone gave me a computer with Windows 8, later updated to 8.1 and, finally, to 10. The thing is I want to install Ubuntu LTS (14.04.3) alongside Windows 10 ...
0
votes
0answers
19 views

Ubuntu 15.04 died when win 10 installed new boot sector

I have a gpt format disk uefi bios. I had ubuntu 15.04 and Windows 8.1 dual booting fine. Windows 8.1 would not install security updates unlessI also installed Wondows 10. Linux vanished and cannot ...
0
votes
1answer
64 views

Windows 7 not booting after installing Ubuntu 14.04.03

Although I use Ubuntu for my work, I am not that well-versed in its functioning, so please excuse any errors resulting from that. I tried installing Ubuntu 14.04 for the purposes of a dual boot with ...
0
votes
1answer
119 views

windows 10 dual boot with Ubuntu

I am unable to install ubuntu on my windows-10 HP-laptop, through usb disk.The computer is unable to detect the USB while in UEFI mode(secure boot,fast boot turned off),but is detecting when in legacy ...
2
votes
0answers
41 views

How can I install Ubuntu onto a flash drive and boot from any PC using EFI?

I have been looking at Live disks with persistence and the fact that you can install Ubuntu to a Flash Drive, but there seems to be no stated way to install Ubuntu on a USB drive with persistence and ...
0
votes
0answers
21 views

Ubuntu 15.04 Boots to a blank screen after Enabling Virtualisation in BIOS

I had dual booted my pc with Windows X and Ubuntu 15.04 I happened to enable the Intel Virtualisation flag in BIOS, and found that the PC does not boot into Ubuntu as after the grub2 screen, after ...
0
votes
0answers
15 views

I have osx needing 'legacy' boot and linux using efi can I set up osx for efi boot?

I have osx needing 'legacy' boot and linux using efi can I set up osx for efi boot? At present I can boot either linux or an efi-booting windoze10 install, but to boot into osx I have to first enter ...
0
votes
0answers
93 views

Directly booting into Windows 10 after installing Kubuntu 15.04. No Grub menu

I installed kubuntu 15.04 in UEFI mode (since my windows 10 was also installed in that mode), but instead of showing the grub menu while starting up, the system is directly booting into windows 10. ...
0
votes
1answer
31 views

How do you force start ubuntu on Macbook Pro

My MacBook stopped running LION OS so i decided to install Ubuntu on it. I followed the steps set out (see below) and got Ubuntu working well for a few days. Then it would not boot past the famous ...
0
votes
0answers
44 views

Having trouble dual-booting Linux (Ubuntu 14.04) with Windows 8.1

I would like to dual boot Ubuntu 14.04 for a software development environment, but I would also like to keep Windows 8.1 and my programs / media on a partition because I enjoy playing some ...
0
votes
1answer
21 views

UEFI hybrid mode win7 and ubuntu installation issue

i have HP 430G2 laptop in which windows 8 is preinstalled. I need to install dual boot with windows 7 and ubuntu. In bios there are three options. legacy mode : here i can able to install windows 7 ...
0
votes
0answers
11 views

How to disable intel SRT?

I am trying to follow this guide to install ubuntu on a UEFI system: https://help.ubuntu.com/community/UEFI I already disabled Fast Startup, but I can't figure out how to disable/turn off Intel SRT. ...
0
votes
0answers
34 views

Grub menu not being shown after installation of kubuntu 15.04

I am using windows 10 ( upgraded from 8.1 ) and I installed kubuntu 15.04 using a bootable usb. I installed this into sda5 with 40GB capacity. I also created a swap partition of 8GB. After ...
-2
votes
0answers
14 views

i install ubuntu14 on atom z3735e tablet but don't boot HELP ME

i install ubuntu 14(no dual boot) on my tablet with atom z37353 but don't boot:a message say boot failure. the system is 64bit because it function with efi mode adding bootia32 file. the guide said ...
0
votes
0answers
23 views

Lubuntu 15.04 installed on USB won't boot on a Hewlett HP 20 All-in-One PC

I am a basic user and this is my first time trying to install Lubuntu 15.04 64 bit onto a USB from a CD. Installation went okay and when asked to reboot it booted up again without a problem. Then I ...
0
votes
1answer
22 views

Dual-booting Windows 8 and Ubuntu with UEFI on two separate drives?

I've already installed Windows 8 in UEFI mode and it is currently running off of one SSD. On another SSD, I want to install Ubuntu GNOME. Is there any sort of special configuration or setting I have ...
0
votes
0answers
37 views

Ubuntu live disk stop halt in the boot process

I have just bought a new ASUS laptop for my son. It have pre-installed Windows 8.1. I made my usb-live stick as I use to and tried install ubuntu. It use to be simple. I switch off fast-boot in bios ...
0
votes
1answer
32 views

I deleted my ubuntu partition (win8 dual boot) without first resetting my uefi boot settings. How can I recover my laptop from grub2.02?

When I turn on my computer, I see the grub2.02 command line. It says "GNU GRUB version 2.02~beta2-15 Minimal BASH-like editing is supported. For the first word, TAB lists possible command ...
0
votes
1answer
27 views

How to install Ubuntu on non-UEFI? [duplicate]

I have an assignment in which I have to give the steps of the installation. So I request you to be very specific on the steps
0
votes
3answers
51 views

boot straight into windows no grub :(

so i installing windows fresh install i installed ubuntu but i forgot to disable secure boot as some one told me it could cause problems with boot loader so when installed finished it went straight ...
1
vote
1answer
41 views

Dell XPS is not starting

My Dell XPS (with ubuntu preinstalled on it, EDIT1: it was bought on 2014 June-July) does not start. Pressing power on button, a black screen is showing this text: Missing operating system. Operation ...
1
vote
1answer
23 views

Computer won't boot except by efi file

I'm here today because I have a lot of trouble with my computer under Ubuntu. I decided to re-install my computer 2 days ago. And, don't know why, I must pass throught the boot option in my bios and ...