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
1answer
14 views

Switching an already installed Ubuntu 14.04 LTS from Legacy to UEFI Boot mode

I have a new Acer Aspire V3-572 with a pre-installed Windows 8.1. I tried to install Ubuntu 14.04 LTS alongside Windows in UEFI boot mode, however, the systems gives me the following message "System ...
0
votes
0answers
12 views

Damaged GRUB 2 in my laptop

I have a genuine Windows 8 pre-installed on my laptop. I installed the Ubuntu in UEFI mode, using a live CD, but now the GRUB doesnt show, hence,not allowing me to boot to windows if I want to. It ...
0
votes
0answers
17 views

How to restore Windows 8.1 boot after installing Ubuntu on flash drive

System: Dell XPS 8700 running Windows 8.1 using secure boot and UEFI. Boot Info Summary: http://paste.ubuntu.com/8340337/ I installed Ubuntu on a USB flash drive using the Live CD version. My goal ...
1
vote
1answer
57 views

Ubuntu installation confusion

I need to know what are the things that are required to successfully install Ubuntu on my PC alongside Windows 8.1. I want to install Ubuntu alongside Windows 8.1 but every forum/site mentions ...
0
votes
0answers
29 views

Install grub in separate boot partition (dual boot)

I have both Windows 8.1 and Ubuntu 14.04 installed on UEFI mode (of course, dual boot). I have used bcdedit under windows 8.1 to set grub 2 as the default boot loader: bcdedit /set {bootmgr} path ...
1
vote
0answers
17 views

Will there be an update to Ubuntu for enabling it to easily install alongside Windows 8.1? [duplicate]

Will there be an update to Ubuntu for enabling it to easily install alongside Windows 8.1? I have seen the various options to play with the restrictions made by UEFI and install Ubuntu through the ...
0
votes
2answers
33 views

How Can I Get GRUB to Work After Restoring Deleted EFI Partition?

First time posting here for help. So Friday night I was playing around with GParted and accidentally deleted several partitions. One of the was an unnamed. After doing this, I restarted and I was ...
1
vote
1answer
49 views

Can't Boot into either Windows or Ubuntu

History I first installed Windows 8.1 and left around 60GBs Unallocated. Then I tried installing Ubuntu with a USB, but the partition table I had made did not show up. I then tweaked some settings in ...
0
votes
2answers
53 views

Why doesn't live USB work in non-UEFI mode?

I have Windows 7 64 bit installed on one partition (the rest of the disk is unallocated). I made a live USB with the latest official Kubuntu 14.04 64 bit ISO. When I boot, there are two USB options: ...
0
votes
1answer
62 views

Grub doesn't detect my windows 7

It is my first time installing Ubuntu (14.04). I have Windows 7 installed on my first HDD, and installed ubuntu on my second one. To install I followed the instructions on this website: ...
0
votes
0answers
49 views

Zotac Zbox EN760 Won't Boot from USB

I wanted to install Ubuntu 14.04.1 on my Zotac Zbox EN760. It is using legacy boot, as both the "Win7 uEFI" and "Win8 uEFI" don't get past the purple screen (don't know the official name, the one with ...
0
votes
1answer
62 views

Dual Boot / Grub 2 issues (Ubuntu/Windows)

TLDR Version: Problems with Grub2. Boots straight into Grub terminal. I get some "failure reading sector errors" (details below). I've tried running boot repair several times, with a few different ...
0
votes
0answers
50 views

How do I correct boot problems with installation on a UEFI Windows 8.1 system?

I have semi-successfully installed Uberstudent 4.0 on a UEFI Windows 8.1 system, but I need help correcting whatever error I have made. (I assume I have made an error somewhere, since I had to take ...
2
votes
1answer
85 views

Ubuntu / Windows 7/8 boot issue

I installed a dual boot Windows 7/8 on my laptop and now I also added a Ubuntu 14.04.1. To install Ubuntu I did an efi partition on sda1, a swap partition (sda6) and root (sda7) After the ...
2
votes
1answer
158 views

Ubuntu 14.04 LTS Install Issues

The first thing I have done (before posting this questions, was read the guide located on AskUbuntu. This was a very detailed guide, and now that I have Ubuntu 14.04, I will try this again. ...
0
votes
2answers
56 views

Windows not detected. OS fails to boot

I have seen very similar topics and some solutions throughout the website. But I think none of the questions are asked along with enough details. So here I go. I wanted to Install Ubuntu 14.04.1 LTS ...
0
votes
3answers
183 views

An Ubuntu command bricked my sytem?

I freshly installed Ubuntu on my computer a few days ago to run an exclusive program. I finished with it, and I was about to format the drive to reinstall Windows. However, my little brother wanted to ...
0
votes
0answers
44 views

Ubuntu 14.04 on Macbook Air 6,1 nr_cpus=1

After I installed Ubuntu 14.04 along side OSX with refind, selecting Ubuntu (or previously Xubuntu), then Ubuntu from the Grub menu just gives a purple screen. I changed the Grub config from "quiet ...
0
votes
3answers
41 views

BootOrder in efibootmgr does not show OS-specific options

How can I set Ubuntu/GRUB as the active default boot option? My computer automatically boots to Windows. Here is image of the efibootmgr output: I'm running HP Envy dv6 with Intel Core i7 and I ...
0
votes
0answers
27 views

Can not access BIOS after Ubuntu UEFI Installation!

I recently installed Ubuntu 14.04 in my Fujitsu AH532 laptop. It was just working fine before the installation. But when I planned to install Windows 8.1, I could not access the boot menu or BIOS ...
1
vote
0answers
99 views

Dual Boot Windows 8.1 and Ubuntu 14.04 no GRUB appearing going directly to WIndows

I was trying with my friend to Install Ubuntu 14.04 In Dual Boot Mode With Windows 8.1 UEFI in my new Toshiba laptop. The installation of Ubuntu was finished successfully. However when I rebooted ...
0
votes
1answer
47 views

Inability to Install Ubuntu 14.04LTS

Okay, Microsoft has been giving such a headache with this. I am attempting to Dual-boot Ubuntu 14.04LTS onto my HP Envy Touchsmart, model 4-1105dx. I created the partition (I have a GPT-kind ...
0
votes
1answer
205 views

UEFI: Catch-22 on a acer aspire v5-531

I was trying to install Ubuntu 14 (64-bit) on a Aspire V5-531, preinstalled Win 8. In the bios I can flag: boot mode UEFI, secure boot DISABLE in this case the neither installation USB card nor cd ...
0
votes
0answers
28 views

Can't boot from Windows 8 to Ubuntu error in file \EFI\ubuntu\grubx64.efi

First of all I had a pre-installed windows 8 on my laptop device (Toshiba) then I wanted to install Ubuntu linux alongside with windows 8. I installed it regularly then I had a problem that I couldn't ...
0
votes
0answers
37 views

How to create a bios update usb? (Toshiba NB10t series)

After a few days struggle with installing ubuntu and trying to make it boot, I have discovered that Toshiba has made an update for their buggy UEFI fifirmware ...
-2
votes
0answers
20 views

Boot problem with Ubuntu 14.04 in Samsung RV411 notebook [duplicate]

I installed Ubuntu 14.04 on my Samsung RV411 notebook on a partition in parallel with my Windows 7 Starter (crap), but I can't boot it. Windows 7 automatically starts and the option to choose another ...
0
votes
1answer
134 views

Installing Ubuntu 14.04.1 LTS from USB on an UEFI system stops in grub rescue shell - how to continue?

I want to install Ubuntu 14.04.1 from USB on a system with UEFI (from HP) instead of BIOS where Windows 7 is preinstalled. Unfortunately booting from USB-Stick hangs at the Grub "rescue shell" with ...
-1
votes
0answers
49 views

Dual-Boot (General boot) messed up! Can't enter windows 8.1 (BCD error)

I'm kind of freaked out right now, but i will try to explain what happened as good as I can. English is not my first language, so please excuse any grammar or writing errors I'm asking here on ...
1
vote
0answers
63 views

How to make Windows 8 appear in a boot menu when dual-booting with Ubuntu?

I want to ask how to create GUI for choosing OS when booting my notebook. I have Windows 8 preinstalled on my notebook, and I wish to have a dual boot system with Ubuntu, However, after Ubuntu ...
0
votes
0answers
100 views

Cant get burg to load up on 14.04.1 LTS with Windows 8.1 Pro

So I reinstalled the LTS due to some issues and I decieded to try burg out. So installed it and everything and sudo burg-emu works and shows the theme installed working too. However it will show ...
-1
votes
0answers
16 views

How to install ubuntu 14.04 on UEFI laptop? [duplicate]

I have Sony VAIO E15125CNW. It have Windows 8 preinstalled on UEFI. I want to dual-boot with Ubuntu. How can i install Ubuntu 14.04 LTS 64-bit on UEFI?
-1
votes
2answers
50 views

Windows 7 won't boot from GRUB (UEFI)

everyone. After having installed Ubuntu on my desktop Windows 7 won't run. There's a menuentry in the GRUB called "Windows 7" but when i press it nothing happens - the GRUB's menu just reappears. I ...
0
votes
0answers
52 views

EFI installation fail

EDIT: I managed to resolve part of the problem myself. Now I am left with this. I have a Toshiba Satellite NB10t-A-101 with pre-installed Windows 8. I did had Ubuntu installed before, but after a ...
-1
votes
0answers
17 views

How to Install Ubuntu 14.04.1 in dual boot with Windows 8 in Notebook ASUS R103B X102BA AMD A4 with UEFI Securety Boot [duplicate]

I would like to know how to setup BIOS UEFI in my Notebook ASUS R103B X102BA AMD A4 in order it can read Ubuntu 14.04.1 installed via Unetbootin in a pendrive USB. I want to install it in dual boot ...
-1
votes
0answers
18 views

Use refind over gurb (grub starting after refind)

So im dual-booting Windows 7 and ubuntu 14.04, both on a GPT partition type in a Gigabyte hybrid uefi (both were installed as uefi) When i choose windows, it boots correctly but when choosing ubuntu ...
0
votes
1answer
127 views

Linux Full Installation on USB (Windows 8.1 Surface Pro 1) UEFI issue

I see a few similar questions but I haven't found one that had a solution yet for me. So, forgive me if this seems redundant. As the title implies, I want to install an Ubuntu fork (LinuxLite 2.0) on ...
0
votes
0answers
18 views

Ubuntu stuck on as a uefi entry after doing efibootmgr

I have a Asus x550ca and I have dual booted it with windows. The problem is that I deleted the ubuntu partition and swap because I found ubuntu to be useless to me and there is a ubuntu entry in my ...
1
vote
1answer
86 views

EFI Boot loader problem for dualboot system with windows 8.1

I succesfully installed ubuntu 14.04 manually alongside windows 8.1 on my Lenovo ThinkPad Yoga. However I did not manage to fix the booting process. So here is what I tried so far: using ...
0
votes
0answers
25 views

How to improve my disk partition?

I want to improve my disk partition. I get an exclamation point on one of the partitions and what is? Please explain me first and give a solution. and It does not affect me, but I would like to ...
-1
votes
0answers
74 views

Can't boot from USB, why Ubuntu 14.04 in EFI mode goes directly to grub?

Ok, i installed Ubuntu 14.04 lts on a machine that formerly had Windows 8 (completely removed it) with UEFI, as far as i know, Ubuntu was installed in EFI mode, this was confirmed with some commands i ...
-1
votes
1answer
75 views

How do i Make a Custom UEFI bootable live CD?

I tried the following from: LinuxQuestions.org. mkisofs -U -J -joliet-long -r -v -T -o ttylinux.iso -b boot/isolinux/isolinux.bin -c boot/isolinux/boot.cat \ -no-emul-boot -boot-load-size 4 ...
0
votes
1answer
45 views

How to access the UEFI firmware settings? (aka BIOS)

When trying to install Ubuntu on a UEFI-capable computer that came with Windows 8 preinstalled there is no indication like on previous computers (eg. "Press F2 to enter setup") when to access the BIOS ...
1
vote
1answer
64 views

Lubuntu 14.04.1 - load installer components from cd fails, although integrity is ok - why?

I am trying to install lubuntu-14.04.1-alternate-amd64 on a USB Stick - and oh my, is that some trouble. My Setup: Win7 UEFI System with enabled Secure Boot My Target: 64GB USB 3.0 Stick in USB3 ...
0
votes
0answers
14 views

Trying to clean Install windows 8 after Ubuntu has been successfully installed onto my system [duplicate]

Hello to all Ubuntu users. I am posting this message as my last resort to try and solve some issues I am having with my system. Here is some technical info: My laptop is Lenovo G500s Notebook, 8gb ...
0
votes
0answers
35 views

Ubuntu not showing as boot option in BIOS

I'm having loads of problems using Ubuntu 14.04 64-bit in a machine with Win8 preinstalled. I have tried installing it 3 different times, using different configurations. The one i'm with now has a ...
-1
votes
1answer
96 views

How to set USB flash drive as first boot device in dell inspiron 15

i m trying to install ubuntu on Dell Inspiron 15 using USB flash drive using USSB installer. But in booting sequence there are only two boot options. Legacy boot and UEFI boot mode. Can anyone tell me ...
0
votes
1answer
95 views

Neverending issues with grub (ubuntu 14.04 on ASUS with Win8 dual boot)

This is the most frustrating issue I have ever run into using Ubuntu and Windows in the same machine. I have an ASUS K46CB, 6GB RAM and preinstalled Windows 8.1 64-bits. I have successfully ...
0
votes
2answers
51 views

Can't Reboot into Windows 8.1 from Ubuntu

I am newb in Ubuntu. Currently I am using an Acer V11 laptop with a pre-intalled Windows 8.1. I follow some guideline ...
1
vote
0answers
71 views

boot XEN under UEFI-only BIOS

Is there a way to get XEN 4.4 booting from UEFI mode BIOS? My AMD64bit laptop does not support direct CSM/legacy boots. A nasty workaround has been to boot from a specially made USB pendrive with ...
0
votes
0answers
133 views

How to install on Lenovo IdeaPad Flex 15D

i would like to know how to instsll install Ubuntu 14.04 on my Lenovo IdeaPad Flex 15 D that have Windows 8 based on UEFI firmwares and have hidden partitions for recovery, so i saw a lot of YouTube ...