Tagged Questions

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.

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493 views

Installing Lubuntu 14.04 in UEFI

I have an Asus N56VZ. In the BIOS, UEFI is enabled. I am trying to dual boot Lubuntu 14.04 with preinstalled 64 bit Windows 7. I booted from a live-USB and there were two options, a normal USB boot ...
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1answer
2k views

Windows 8.1 not appearing in Grub2 after installing ubuntu 14.04

I have HP notebook which came with freeDOS (MBR partitioned with two primary partitions). I have installed Windows 8.1 in Legacy mode by creating another primary partition. Yes, in Legacy mode though ...
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1answer
3k views

Change boot order using efibootmgr

I recently installed Ubuntu 14.04 (First time linux user) on my HP Envy and have been trying to get the dual boot to work. I've looked around and have tried running the boot repair (here are the ...
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1answer
295 views

Installing Ubuntu 14:04 along site with 8.1 and UEFI. Can't enter secure boot

I've been trying to setup Ubuntu 14.04 (64bit) along with my Win 8.1 Desktop-PC. My Problem is, that I have UEFI instead of the normal BIOS. When I just install Ubuntu as I did very often on other ...
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2answers
1k views

Ubuntu 14.04 - after installation no bootloader, so Windows 7 starts

I have just installed Ubuntu 14.04 for the first time. There is also working Windows 7 on that PC. After the installation from Ubuntu 14.04 with an USB-Stick I clicked on "restart" and the system ...
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2answers
4k views

Ubuntu 14.04 install: grub-efi-amd64-signed failed to install into /target/

I'm trying to install Ubuntu 14.04 on a Dell Inspiron 7537, in dual-boot with Windows 8.1, with a UEFI system. After the creation of the new partitions, I've been able to install Ubuntu 14.04 without ...
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3answers
224 views

Installing Ubuntu on laptop without a preinstalled OS?

(I've looked around the site and found only a few questions that could potentially be relevant, most of them downvoted and unclear, or involving computers that previously had an OS. Sorry if this is ...
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2answers
169 views

Update Windows 8 broke my GRUB

Any update W8 broke my GRUB. Normally, the boot-repair all repaired, now can not cope. Details: http://paste.ubuntu.com/7612713/ Can you advise something?
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1answer
85 views

Grub does not see second operating system

I just installed Lubuntu 14.04 on a desktop computer. The Computer has two hard drives, one of them contains WindowsXP and one of them does contain Lubuntu. The idea is to have an offline XP and an ...
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1answer
92 views

Trying to update Asus BIOS

My UX31 zenbook is experiencing some weird shutdown behavior when the battery drops below 50% and the internet seems to agree that updating the BIOS is a good step forward since there were issue with ...
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0answers
95 views

How can I remove Ubuntu record from my boot list?

I've installed Ubuntu 12.04 on an external USB3.0 drive. I selected sdb (the usb stick) as grub point and created a new ext4 partition as root on sdb1. Everything went very well and I could either ...
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0answers
25 views

Grub loader cant boot into WIndows 8 [duplicate]

So, I just installed Ubuntu 14.04 onto a Lenovo u510. However, I can't boot into the Windows partition from GRUB. Whenever I load to grub, it says: /EndEntire file path: /ACPI(... error: ...
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2answers
177 views

Ubuntu 14.04 UEFI won't boot after upgrade from 13.10

Upgrading from Ubuntu 13.10 to Ubuntu 14.04 has resulted in a system that is not bootable. The system consists of two disks: One with Windows 8 (/dev/sdaX) and one with Ubuntu 14.04 (/dev/sdbX). I ...
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1answer
185 views

PXe M0F and efi boot problem after ubuntu 14.04 install through efi

I just recently installed Ubuntu 14.04 on my lenovo g500,I am a bit new to terminal. I previously had windows 8(My laptop came with FREE DOS per-installed) on my laptop and decide to change it with ...
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3answers
83 views

Windows installation on top of Ubuntu [duplicate]

There seems to be a lot of questions on askubuntu and info on the web on how to install Ubuntu and Windows in dual boot, but everywhere Ubuntu is installed afterwards. I would like to install Windows ...
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2answers
1k views

GRUB2 not working after installing xubuntu 14.04

I have a vaio laptop and it used to have installed windows 8 and Xubuntu 13.04 in dual boot, everything was working fine. I decided to update my version of xubuntu 14.04 LTS mainly because the ...
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0answers
998 views

Dual-boot windows 8.1 uefi and ubuntu, grub not showing

Before starting, I'd like to point out that after checking out alot of topics on the forum, I still haven't found a solution that works for me, so I hope this doesn't get flagged as a quesiton already ...
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1answer
32 views

Exact booting how to do it. [duplicate]

In my lap dell inspiron 15r 5521 i used to have window's 8 and then i tried to dual boot with window's 8 and got my whole window's 8 deleated. Can any one give me the links of how to do dual boot ...
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1answer
174 views

Cannot boot from SD card/flash drive on Macbook Pro 13" - boot fails after purple screen

It's my first time using Ubuntu and I have run into some problems. I have a 16GB USB Flash drive and 16GB SDHC Card. I would prefer to use the SD card but either will do just fine if it helps with ...
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0answers
730 views

Clonezilla vs. FOG on Ubuntu

I am hopeful that someone in this community will be able to help me. I am stumbling my way through my first experience with any form of Linux computing. Since 2003 I have used Windows and Symantec's ...
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1answer
207 views

Blank screen booting Ubuntu 14.04 iso on 2011 Macbook Pro 17"

Macbook Pro (17-inch, Late 2011) I've tried booting from the official Ubuntu-14.04 desktop iso, and I can get to the grub menu, however choosing either "try ubuntu" or "install ubuntu" results in a ...
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1answer
2k views

Lenovo G500 how do I turn off secure boot to install Ubuntu 14.04?

I am trying to install Ubuntu 14.04 on Windows 8.1. I have gone through the manuals in the internet and in "askUbuntu" but I have found no solution. I have turn off "fast boot" option in Windows as ...
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1answer
4k views

“This computer currently has no detected operating systems.”- Ubuntu 14.04 install Windows 8.1

I tried to install Ubuntu alongside windows 8.1. I disabled secure boot and made sure UEFI was enabled and moved the DVD above Windows Boot manager in the boot order. But the Ubuntu installation still ...
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0answers
706 views

Ubuntu 14.04 LTS Boot-Repair Error

I always like to start by apologizing just in case this is a duplicate question, but I don't really know what to ask, so I don't know what to look for. With that being said, I'm running a Lenovo V570 ...
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1answer
2k views

EFI partition and boot manager - dual boot windows 8 and ubuntu

So, i bought a HP pavilion g6 laptop last year with windows 8 preinstalled and successfully installed ubuntu 13.04 on it . But every time i booted i had to press F9 to enter bios options and then from ...
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1answer
180 views

Dual Boot with windows 8.1 and 12.04.4 ubuntu. With 2 drives in UEFI mode

So I was able to install ubuntu in legacy mode on my second ssd. Now I have learned that I can't dual boot with out ubuntu in UEFI mode. I have a disc with ubuntu live on it. I go into the boot menu ...
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0answers
60 views

Windows 8.1 keeps changing my boot order in favor of Windows [duplicate]

I installed Ubuntu 14.04 LTS on a partition of an external disk drive connected to my HP 400-224 PC. The Ubuntu boot partition is sdb. EFI mode is enabled for both Ubuntu and Windows 8.1. Secure ...
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1answer
98 views

Dual boot alternatives

I would like to clean install a Linux distribution as Ubuntu etc. My laptop runs Windows 8.1. I have two options in mind. Clean install or dual boot. My technical question is: My laptop have a 8GB ...
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1answer
161 views

GRUB issue and botrepair won't work

I'm having some issues with my freshly installed Ubuntu.. It seems GRUB didn't install properly (I installed "alongside windows" in UEFI). I tried to run bootrepair but it kinda stuck in a loop asking ...
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1answer
147 views

No boot loader found - dual booting Windows 8 with Ubuntu 14.04

I have been trying in vain to dual boot my computer with Windows 8 Pro (pre-installed) and Ubuntu 14.04 64-bit. I have been able to successfully install Ubuntu 14.04, but the option to start Ubuntu ...
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0answers
113 views

Windows 8.1 blocking Ubuntu's access to my HDD

So I was trying to install Ubuntu 14.04 on a new Ideapad that comes with Win8.1 and the moment I start the setup I see that the HDD is inaccessible, neither from the install app or from Nautilus. The ...
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2answers
1k views

OS X no longer visible in rEFInd boot after installing Ubuntu

I installed rEFInd to ESP on my Macbook Pro Retina running Mavericks (with FileVault on). Here is my partition info: /dev/disk0 #: TYPE NAME SIZE ...
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0answers
987 views

Windows boot manager blocked by current security policy for lenovo U-510

I have got a Lenovo U-510 with pre-installed windows 8, and I want to have Ubuntu installed in parallel. I installed Ubuntu 12.04, and after that I did Grub repair through online support, since my ...
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0answers
75 views

Struggling to get 14.04 to boot alongside Windows 8 on separate SSD with UEFI

As the title says i've been struggling to get 14.04 to boot on my machine, the install worked after editing GRUB to use nomodeset but it refuses to move past a black screen on the next boot. Current ...
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0answers
54 views

How do I replace Ubuntu on a Windows 8 UEFI laptop?

I understand this is an Ubuntu forum so it might be a little weird to ask how to install over Ubuntu, but I thought this might be a good place to ask. I'm currently dual booting Ubuntu and Windows ...
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2answers
167 views

Wrong EFI System Partition GUID?

On a new GPT initialized disk (second PC disk) I created a FAT32 partition using gparted. I want to use it as an EFI System Partition so I flagged it as boot. After that I checked the UUID using the ...
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0answers
52 views

Ubuntu Server 14.04 no longer boots

my Ubuntu 14.04 Server suddenly stopped booting. The logs don't really indicate what's going on. I took an image of the boot disk and ran it in QEMU-KVM. It behaves exactly as on the physical machine. ...
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1answer
175 views

uefi + ubuntu 14.04 on separate hdd

I have win8 installed on ssd1 and want to install ubuntu 14.04 LTS on ssd2 I've run default ubuntu installer using DVD. It finished w/o errors. I try to boot using "boot menu" choosing ssd2 to boot. ...
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1answer
65 views

After deleting the EFI menu entry for Windows, I always have a system error and can't shut down properly

Xubuntu 14.04 Hi, first some code bits which I think are relevant: $ sudo efibootmgr BootCurrent: 0000 Timeout: 3 seconds BootOrder: 0000,0003,0004 Boot0000* ubuntu Boot0003* Hard Drive ...
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2answers
85 views

How to run linux in efi mode after installing in legacy mode?

I installed Ubuntu in windows by making separate partition. My both OS are installed in legacy mode but I want to switch to UEFI. When I switch to UEFI MODE a black screen comes up instead of grub ...
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2answers
612 views

Grub options are not visible on booting on Samsung ATIV Book 9 Lite running Ubuntu 14.04 [duplicate]

I've managed to install Ubuntu 14.04 on my new Samsung ATIV Book 9 Lite ultrabook. After updating some configuratiosn in the UEFI installation was very easy. The only questions and issue I believe I'm ...
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1answer
784 views

Black screen after selecting Install Ubuntu from boot menu (running Windows 8 pre-installed) [duplicate]

I have a Windows 8 pre-installed laptop here. I used UNetbootin to create a USB bootable drive for Ubuntu 14.04 x64. I resized my disk partition, and disabled secure boot. Here's my situation: In ...
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1answer
304 views

My computer won't boot up correctly after editing BIOS

I have a Toshiba c55 i5 with Ubuntu installed. I was looking in the BIOS and I made a change from boot mode UEFI to the other mode "OCM " or " OSM ". Now when I turn on my computer, I get this error ...
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1answer
286 views

Ubuntu UEFI Boot problem on SSD

I recently tried to replace Windows with Ubuntu 14.04 on an SSD. Somehow after installation I could not boot into the system. It said: ERROR 1962 - NO OPERATING SYSTEM FOUND - PLEASE PRESS ANY KEY TO ...
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1answer
204 views

Dual boot w/ UEFI and LUKS - What do I need to know/do?

I want to rebuild my mobile workstation (HP EliteBook 8560w) to dual boot CentOS 6.5 and Ubuntu 14.01LTS. I would like to protect both instances with LUKS. In my research I have come across a few ...
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2answers
400 views

GPT talbe corrupt after RAID1 setup

So I'm completely new to Ubuntu and am trying to set up a backup/media server at home. I saw the guide on Lifehacker and figured I'd give it a try. My system is an i3 3225 on an Intel DH77DF mobo ...
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0answers
65 views

Ubuntu partition not accessible on a UEFI laptop

I successfully installed Ubuntu on my Asus laptop. When I start the computer there's no GRUB to let me choose which OS I want to use, it starts Windows 8. When I try to put Ubuntu as a first choice ...
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1answer
146 views

Ubuntu all of a sudden fails to boot on ThinkPad T430

Not booting Running Ubuntu on my T430 has been fairly straightforward and great until just now. After I used my Windows for some days, Ubuntu all of a sudden fails to boot. After I select Ubuntu in ...
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1answer
604 views

uefi dual booting windows 8.1 and ubuntu 14.04

I have raid 0 set up I have windows 8.1 with Ubuntu 14.04 I can boot to both just fine but I have to do it in the uefi bios . I would like to have in a boot menu in grub is that possible? I have ...
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0answers
118 views

Windows 7 and Ubuntu 14.04

My laptop can hold dual HDDs. I have installed Windows 7 on one HDD and Ubuntu on the other HDD. Installation went fine, but Windows 7 needs CSM on to boot. and Ubuntu needs UEFI on to boot. Is there ...