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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Ubuntu UEFI Windows 8.1 Dual Boot

I have installed Win8 and Ubuntu side by side before in the past and had issues with booting which were fixed perfectly the first time using boot-repair. This time, I installed Win8.1 and Ubuntu with ...
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497 views

Why is there no EFI boot loader on the Ubuntu 12.10 x64 Netinstall? (mini.iso)

Im trying to boot the netinstall(mini.iso) toasted to an usb-stick, but there is no EFI loader in that iso image. so it is not possible to load that kind of installation type on an efi powered system. ...
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236 views

GNU GRUB, Minimal BASH-like line editing screen displays before the usual GRUB screen when dual-booting Ubuntu 14 and Windows 8.1

I have read a couple of posts similar to this issue, but it seems many of them could not boot to Ubuntu after getting this screen due to a bad boot manager. It does not seem this is the case for this ...
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0answers
106 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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781 views

Error in boot repair after installing Ubuntu 14.04 alongside Windows 8.1

I`ve installed Ubuntu 14 in my note following instructions from some tutorials in the internet, I had to enable legacy mode to boot from pen drive. Basically, I created the following 4 partitions in ...
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339 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 ...
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2k views

How to boot Ubuntu alongside Windows 8.1, not modifing Windows bootloader?

I know there's a few questions have been asked similar to this one, but I didn't find what I wanted. I want to install Ubuntu 13 (13.10?) alongside Windows 8.1. The thing is Ubuntu doesn't recognize ...
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162 views

Windows 8 overwrites boot with Ubuntu 12.10

I have a Sony VAIO S series with Windows 8 preinstalled and then I installed Ubuntu 12.10 partition. The first time I was booting the Grub appeared, and I was able to choose between Windows 8 and ...
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143 views

Problems installing 12.04 alongside Windows 8

I have a Lenovo Y400 notebook, and I hate Windows 8. So, I tried to install and dual-boot Ubuntu. I immediately ran into problems. First of all, 13.10 won't boot. Unfortunately, I haven't tried it ...
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1k views

Ubuntu 12.04 Hangs at “Where are You?” during install

I am trying to dual-boot a brand-spanking new rebuilt computer. I bought (2) 128GB Samsung 840 pro SSDs with the intent of installing Windows 8 (new) on one and Ubuntu on the other... with a 500gb ...
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720 views

How to boot Ubuntu 12.04.2 LTS with UEFI, Nvidia graphics and dm_crypt encrypted LVM

I've just gotten 3 new systems, with Nvidia GTX 660 graphics, Z77 chipset and AMI UEFI BIOS. I've installed Ubuntu 12.04.2 LTS from the Alternate Installer in order to install onto an encrypted LVM ...
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0answers
2k views

dell inspiron 15z problems booting Ubuntu in UEFI mode

After several tries I managed to install Ubuntu 12.04 in EFI mode (GPT partition table) on my DELL Inspiron 15z. What worked for me is what is in this post http://askubuntu.com/a/224332/149034, i.e. I ...
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36 views

Asus x200ma dual boot windows 8.1 and elementary OS. UEFI

I just downloaded Elementary OS Luna on a flash drive and booted it in windows using this tutorial https://m.youtube.com/watch?v=46FtBpv6Bjk . I made a 20 GB recovery for windows. A 4GB swap partition ...
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29 views

Mac mini 2014 not booting Ubuntu 14.04 (no dual boot)

I just installed Ubuntu from a live usbkey on my brand new mac mini. Clean install to main HD with no dual boot or funny business: I plan on booting Ubuntu from the internal HD and connecting an ...
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29 views

Fresh install of 14.04 - Gave up waiting for root device

I hope you can help me. I've read many, many questions and solutions to my problem on here, however so far I have been unsuccessful in resolving the issue. The system is a Asrock e350m1, 4GB RAM, ...
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40 views

ubuntu live cd no detected operating system mac

I have installed refind on a 2012 MBP running OSX 10.10, made free space with Disk Utility, and created a live cd of Ubuntu 13.04. When I get to the choice of where to install it, it says there is not ...
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68 views

how to enable secure boot after the installation

Kubuntu 14.04 64bit on a MS-DOS (MBR) type HDD (sda4) Kubuntu 14.10 64bit on a GPT type HDD (sdb5) Windows 8.1 64bit on a GPT type HDD (sda3) these are my installed OSes, both kubuntu installations ...
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30 views

Ubuntu signed Grub do not prefix tftp-root directory for tftp requests

$ lsb_release -rd Description: Ubuntu 14.04.1 LTS Release: 14.04 dpkg -l grub-efi-amd64-signed Desired=Unknown/Install/Remove/Purge/Hold | ...
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55 views

Ubuntu Installer does not recognize existing partitions

History of my laptop: Acer E1-572 with Windows 8.1 preinstalled. I then dual booted with ubuntu without any problems. Then I came across a booting problem which I resolved by reinstalling ubuntu over ...
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41 views

MacBook Pro 1,1 Not Detecting Grub?

I just installed Ubuntu 14.10 on my MacBookPro 1,1. The installation went okay, however GRUB does not work. It's not even detected. I can not bless the Linux disc due to a wiping of OSX. I do not ...
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202 views

Ubuntu won't boot after install on ssd

Last week I bought new Acer Laptop which came with a pre-installed Windows 8.1. I replaced the factory 500GB HDD for a Crucial MX100 256GB SSD, after which I used a bootable USB device to install ...
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26 views

How can I compile and sign Grub in a way that Secure Boot will allow?

Since the file .efi of Grub2 compiled by myself hasn’t gone through code signing (such as EV code signing certificate), and now my program (.efi file) can’t boot computers which have enabled Secure ...
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96 views

core.img cannot be found

I get this after trying to reinstall grub using boot-repair: Grub2 (v1.99-2.00) is installed in the MBR of `/dev/sda` and looks at sector 778209992 of the same hard drive for `core.img`, but ...
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16 views

Need help installing on an odd Win8/Android pc

I was given a Windows 8/Android tablet that will not boot properly. If it tries to boot into windows I get a CRITICAL_PROCESS_DIED error every time. There is no option to boot into Android. I want ...
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136 views

Ubuntu partitioning and dual boot install on Lenovo IdeaCentre Q190

I just purchased a Lenovo IdeaCentre Q190, which has secure boot and uefi. I have minimized the Windows 8 partition to 100 GB. What I need to know is: 1) Should I move the free space to the end of the ...
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179 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 ...
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88 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 ...
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0answers
213 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 ...
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0answers
371 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 ...
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0answers
52 views

No USB boot. No CD boot. Can I install Ubunto on a Mac Mini?

I've been through the answers to similar questions, but they all require USB or CDROM booting. I've installed EFI - it might be that I've not done that correctly, but it boots in EFI, but doesn't find ...
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82 views

Mac with NO internal hard Drive/brokenEfi and ubuntu

a few years ago I got an old Mac (2009 version). I tried to fix it but I gave up after days of workimg. Last week i tried it once again. It seems that there is no (totally broken, I dont know) Hardd ...
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176 views

Why do I have duplicate “ubuntu” entries in my boot loader menu?

When I enter my boot menu, I see two entries labeled "[ubuntu]" that load exactly the same operating system. The recovery entry is also missing. I ran Boot Info Script, which typically covers ...
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0answers
224 views

Problem cause when install/try ubuntu from USB; got squashfs errors on Dell Inspiron 11

It looks like Squashfs errors were prevalent in the past but I haven't seen much recently. I'm using a Dell Inspiron 11 3000 with Windows 8.1 pre-installed. I turned off fastboot, secure boot, still ...
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0answers
806 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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743 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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60 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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135 views

UEFI, NVRAM, and Portable Installed USB Drives

I would like to know how to create a portable installed Ubuntu system that is bootable in UEFI, as opposed to a persistent live system. I think I am encountering problems with non-volitile RAM. I ...
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0answers
151 views

I just installed Ubuntu 14.04 but there is not boot option

I have a notebook with win 8 (UEFI) on it so I decided to install ubuntu 14.04. I installed it on NOT UEFI mode I created 2 partitions a swap memory and then an ext4 and installed ubuntu everything ...
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0answers
187 views

Failed to boot Windows 7 after installing Ubuntu 12.04, invalid EFI file path

First I installed Windows 7 64-bit ,then I installed Ubuntu 12.04 64-bit. When installing Ubuntu, I found my BIOS was UEFI, so I installed Ubuntu like this: https://help.ubuntu.com/community/UEFI ...
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971 views

Windows 8 to Ubuntu, new Acer Aspire V3-772G

I'm trying to install Ubuntu on my new Acer Aspire V3-772G. Unfortunantly, when I boot from my bootable USB drive with nomodeset it doesn't load the graphical interface, but when I click ctrl+alt+1 ...
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0answers
34 views

Ubuntu 12.04 64-bit; strange boot results

I recently installed Ubuntu 64-bit on a new hard drive by first creating a FAT 32 partition for the UEFI boot partition to be installed on, and then running the install via an Ubuntu bootable jump ...
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0answers
98 views

Cant install from USB or DVD — Posted solutions not resolving the issue

Hi and thanks for taking the time to view my question, I've been trying to install X/Ubuntu (12/13.04/10), all to no avail. From USB I always encounter the output: BusyBox v1.13.3 (Ubuntu ...
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50 views

When I click install xubuntu I get a black screen saying empty security header

sometimes It goes past this and lets me install but it just ended like this I am installing with a USB stick.
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1k views

no bootable devices | Win8 UEFI + Ubuntu | after boot-repair “winEFI detected, do you …”

I have a Dell Precision M6700 with Win8 preinstalled. Wanted to install Ubuntu. I am not an expert on grub/boot/UEFI stuff, so followed advice on different forums. Did the following: unchecked ...
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0answers
1k views

Freeze on BIOS screen after boot-repair puts a certain file as EFI

I am trying to create a dual boot of Windows 8 and Ubuntu on an Acer Travelmate P253-M. I successfully install Ubuntu on the hard disk but it doesn't boot. I tried several times with boot-repair, ...
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167 views

Installing Ubuntu alongside a pre-installed version of Windows 8 with UEFI

I've heard a lot of good things about Ubuntu, so I decided to try it out on my HP notebook 2000 laptop (via LiveUSB). My laptop came pre-installed with Windows 8, and it has a UEFI system. However, ...
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0answers
1k views

How to boot Ubuntu 12.04-64bit from a USB from Compaq CQ58

I try to boot Ubuntu 12.04, 64-bit on my Compaq CQ58 laptop from a USB but it is not working. I've correctly installed the Ubuntu on my pen drive following the instructions on Ubuntu website. ...
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739 views

“No bootable device — insert boot disk and press any key.” - ubuntu 12.04 install on ssd

I have new lenovo g580 notebook, where I changed 1TB hard disk to 250ssd ocz-vertex4. I had previously installed windows and linux 12.04 on this disc and when I put it in new lenovo g580 suprisingly ...
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234 views

Ubuntu install on Asus UEFI network not working

I did a complete wipe of my windows 8 and replaced it with Ubuntu (ASUS V500CA-BB31T). When I boot into Ubuntu none of the networking works, not even the Ethernet cable is recognized. When ...
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197 views

Fresh installation of 12.04.3 or 13.04 always boots to terminal/graphical boot fail (AMD)

I'll just say that I am not experienced with Linux, and I've attempted to install Ubuntu on my Windows 8 UEFI laptop at least ten times this past month. I've tried the LTS 12.04 version which greeted ...