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)

2
votes
2answers
29 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 ...
1
vote
1answer
25 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 ...
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 ...
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 ...
-2
votes
0answers
24 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 ...
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. ...
2
votes
2answers
68 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
1answer
329 views

Install Ubuntu 15.04 alongside Windows 8.1

I know the question is repeated but my question pertains to a very specific issue and is likely to be useful for future users who would install 15.04. I read the original answer and it says there ...
2
votes
3answers
4k views

Black screen when trying to install ubuntu 13.10

I am in need of some help. It has been 2 weeks since I bought my first ever windows laptop with the aim of replacing windows but I have been unsuccessful. The hardware is as follows : Asus 15' F550D ...
0
votes
0answers
21 views

booting ubuntu from usb UEFI [duplicate]

I recently built a custom pc. I want to boot ubuntu from a flashdrive, which I have set up following the instructions given by ubuntu on how to both prepare the usb and .iso file (converting it to an ...
1
vote
3answers
4k views

windows 8.1 changes boot order

I am running dual-boot with Ubuntu 14.04 and Windows 8.1. Everything works great without needing to live boot... except one problem I can't figure out. Every time I boot into Windows, it rearranges ...
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
vote
1answer
298 views

Shutdown, restart and suspend problems on Acer E5 511 (Sandy Bridge) 14.04 and 15.04

Lot's of similar problems out there. Basically I have tried most or all of the suggestions offed but to no avail. Specifically. I installed Unity 15.04 on two Acer E5 511 C1WE laptops and it seems to ...
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 ...
0
votes
0answers
27 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 ...
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
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 ...
1
vote
1answer
5k views

How to upgrade from rEFIt to rEFInd

I have recently installed Ubuntu Server (12.04.3) on a MacMini1.1... The MacMini already had OSX (Leopard) on it and I wanted to keep it, so after much research, I used the gpart and fdisk within an ...
1
vote
1answer
2k views

Making an Ubuntu installation disc UEFI bootable

I'm trying to install Ubuntu 12.04 on a machine with UEFI (Windows 8). Following Rod Books, I managed to get my system to boot using rEFInd. However rEFInd does not offer me any options to boot from ...
25
votes
2answers
78k views

How can I change/convert a Ubuntu MBR drive to a GPT, and make Ubuntu boot from EFI?

I recently have upgraded my PC, my new Motherboard (ASUS M5A99X EVO) uses UEFi instead of the regular MBR option. I have a Ubuntu 11.10 installation that I did when I had my previous hardware (MSI MS ...
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
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 ...
-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
0answers
10 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
3answers
4k views

Can't access BIOS and installing a windows hard drive

Built new computer: AMD FX-8320 Eight-Core Processor × 8 9.7 GiB RAM Graphics GeForce GTX 650 Ti BOOST/PCIe/SSE2 Ubuntu 13.10 64-bit Desktop Computer 1 TB HardDrive BIOS Type, UEFI BIOS ...
0
votes
0answers
7 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?), ...
23
votes
3answers
86k views

How to create UEFI-only bootable USB live media?

Having live media that can boot both ways can be a problem when installing Ubuntu onto currently available Windows 8 computers. In other words the key advantage to creating UEFI-only bootable USB ...
-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 ...
2
votes
2answers
5k views

GPT partition table problem: Windows 7 and Ubuntu dual boot

I hope you guys will help me get through this situation I have gotten myself into. I bought a new samsung ultra book running windows 8. I knew going into the purchase that I wanted to ditch windows ...
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
23 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
13 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 ...
2
votes
2answers
1k views

I cannot re-install Ubuntu 15.04 alongside windows 8.1

This question may seem repeated but I have other more issues. I installed 8.1 in my dell 5537 and dual booted it with ubuntu 14.04..I worked well..I installed with alongside windows option..It took ...
1
vote
1answer
243 views

How to install Ubuntu 14.04 64-bit with a dual-boot RAID 1 partition on an UEFI/GPT system?

I have a computer with dual SSDs and Win (7) pre-installed on another disk. The pre-installation uses (U)EFI/GPT boot. I want to install Ubuntu 14.04 64-bit desktop on a RAID1 root partition on my ...
2
votes
1answer
453 views

Ubuntu 14.04 Trusty with UEFI + Software RAID1

How to install Ubuntu on UEFI BIOS with Software RAID1? Should there be 1 partition for EFI and another partition for RAID1 (root+swap) on each drive? I wonder how it will update one EFI partition ...
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
121 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
0answers
34 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
2answers
147 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
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
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 ...
0
votes
0answers
29 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
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
3k views

Kubuntu UEFI Dual Boot with Windows 7 failed at installing Grub-efi

I want to install Kubuntu 13.04 together with Windows 7 in UEFI Mode. I installed Windows 7 first, which created the EFI boot partition. When it come to installing Kubuntu, the installation failed ...
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
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
90 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. ...