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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How to disable the quick start in ubuntu (UEFI)

thank you very much from now and sorry for my English . The problem is the following: In a netbook, containing the UEFI system was activated by mistake , the fastboot option. The netbook has only ...
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0answers
12 views

No selection in Bootloader

I'm new to ubuntu. Yesterday I installed ubuntu 16.04LTS (as dual boot with windows 8.1) and now I'm having a problem with bootloader. When I switched on my laptop there'll no selection option for OS. ...
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0answers
13 views

Reinstalling grub2 from an ubuntu live usb

I've installed FreeBsd along with Arch and Windows in place of Ubuntu. So initially I had Ubuntu, Arch and Windows. I did something wrong and now it boots in grub menu. I've created a live ubuntu ...
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0answers
18 views

Cannot get into BIOS or boot from disk on Samsung NP300 laptop

I have problem with my laptop Samsung NP300-E5C-A02PL. I had there Linux Ubuntu 16.04, but I decided to change system to Windows 10 (It was working before... let's say 1 year ago). At the boot time I ...
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3answers
9k views

Can't enter BIOS settings after installing Ubuntu (Samsung NP300E5S)

I've Samsung (NP300E5S-01IN) laptop, I installed Ubuntu 14.04 LTS on it and now I want to install Windows 8.1 on another partition but whenever I press "F2" key to Enter BIOS settings. it brings me to ...
3
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1answer
118 views

No USB boot. No CD boot. Can I install Ubuntu 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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0answers
16 views

USB boot option not there, only boot with EFI and HDD

I have 1TB HDD, installed ubuntu on it with no partitions. I realized I am very comfortable with it and need to install Windows. For that I made a bootable USB using unetbootin (it worked fine as USB ...
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1answer
28 views

Unable to boot from USB on Windows after removing dual booted linux

I had previously installed elementary OS on my windows laptop and was trying to install normal ubuntu alongside it, but I kept having the issue of not being able to boot from the USB with the ubuntu ...
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2answers
21 views

black screen after installing Ubuntu

Hopefully this has an easy solution. I recently installed Ubuntu using the Ubiquity installer for the latest release. Due to my hardware, in order to install it from my USB, i had to use the nomodeset ...
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3answers
4k views

Why do I get “Required key not available” when install DKMS modules or after a kernel upgrade?

When I try to install DKMS modules like VirtualBox, Nvidia, or Broadcom drivers, they do not install and I get Required key not available. This issue may appear after a kernel update as disabled ...
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2answers
7k views

Dual boot Win 8 / Ubuntu loads only Win

my computer is a Sony Vaio Notebook. I used Ubuntu and Win 8 with dualboot but windows somehow managed to remove the choosing of the OS at startup. I think the bios is EFI and secureboot was disabled ...
5
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1answer
95 views

Dual boot Windows 10 & Ubuntu 16.04 — blank purple screen of death when booting Windows!

This is on my Dell XPS 9550 laptop with 512GB Samsung P951 NVMe SSD. I first installed Windows 10 and it boot up just fine. Then I shrinked the volume for Ubuntu and installed it via Live USB ("...
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1answer
34 views

Have tried every boot mode on my computer, now what?

Okay so, I apologize in advance if the solution is plainly and painfully obvious, as I am a complete Ubuntu noob. To keep things short, basically: longtime Mac user, disgruntled with Apple hardware ...
2
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1answer
17 views

Can't boot from clean install

I've recently been having trouble booting my computer. I tried to re-install some NVIDIA drivers after an update broke CUDA and led to some poor video performance. However that led to some conflicts,...
0
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1answer
38 views

How can I convert Ubuntu to UEFI

I want to install Ubuntu 14.04.4 in UEFI mode alongside windows 8, which is already in UEFI mode. My partition scheme is GPT. Ubuntu is on /dev/sda5. Legacy bootloader on /dev/sda. Windows on /dev/...
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1answer
23k views

Ubuntu/Debian on a Lenovo Ideapad 100s — Linux has issues with this laptop

I picked up an Ideapad 100s and have been trying to install Ubuntu on it. So far I have been unsuccessful to boot the Ubuntu installer. That machine comes with windows 10, uses UEFI and its setup only ...
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3answers
113 views

Lenovo IdeaPad 100s grub installation failed and disk disappeared

A few days ago I bought a cheap Lenovo IdeaPad 100s and it's a great laptop shipped with Windows 10. Since then I've been trying to install Ubuntu on it but I have failed to do so. What I did is I ...
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1answer
268 views

no grub menu after ubuntu 15.10 install : dell xps 9350

Was discussing my woes dual booting win10 and ubuntu on a new dell xps 13 9350 in this q, and thought this issue merited its own question. what I have done so far did a clean install of win 10 ...
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0answers
14 views

Lenovo G580 Zorin OS killed my bios. I can no longer access the bios or boot menu [on hold]

I am struggling with a very serious problem with my old laptop. I installed Zorin OS to my laptop and now Every time I try to access the bios or the boot menu It says please wait after pressing the ...
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0answers
8 views

Ubuntu not booting when RAID is turned on

Got a new Dell XPS with Windows 10. Ubuntu GNOME 16.04 installation USB couldn't see the SSD drive in order to install. I had to turn of RAID from system settings in order to install Ubuntu. Now when ...
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0answers
8 views

Installation challenge: UEFI only cannot boot from external device 32 bit cpu HELP! [duplicate]

Preramble: I got this very cheap ($79) Windows 10 computer because I'll be travelling and don't want to worry about losing it. For previous travels I developed a script to capture my GPS log and ...
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2answers
25 views

Is it required to have two separate EFI partition when dual booting with Windows?

Since I already have Windows installed, there is already an EFI partition on my disk. I want to install Ubuntu on that same disk. Do I have to create a new EFI partition for Ubuntu, or can the one ...
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1answer
36 views

Attempted to Repair GRUB through live USB. Has not worked, cannot get into Ubuntu

Made a post earlier here: Installed Windows 8.1 over 7. Can't Get into Ubuntu 14.04 Essentially, Had Windows 7 on my system first, as is recommended. Afterwards, Ubuntu was installed. Now after ...
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4answers
6k views

Ubuntu LiveUSB doesn't recognize my Windows 8 installation

I have a laptop with UEFI (secure boot disabled) with Windows 8. I am trying to install Ubuntu 12.10 or 12.04 along side Windows 8 on my primary hard drive, which uses GPT. I am only presented with ...
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2answers
6k 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 ...
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0answers
25 views

Enabling UEFI Secure Boot After Installing Third Party Driver

After a recent upgrade in Ubuntu 14.04, my wireless card (Broadcom) stopped working. After much research, it became apparent that my laptop's UEFI secure boot needed to be disabled due to a change in ...
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4answers
1k views

An Ubuntu command bricked my system?

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 ...
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0answers
12 views

Problem in installing Ubuntu on a win 7 lenovo laptop upgraded to windows 10

I have a Lenovo ThinkPad Z570,it shows the following error message while trying to install ubuntu https://goo.gl/photos/tAKzW5vzSQND42a88 Please help!
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2answers
94 views

Grub problems on dual boot windows 10 / ubuntu 16.04 laptop using samsung 950 pro ssd's

I have been googling like crazy to solve this issue and most of the posted solutions have failed. I am trying to dual boot an Alienware 17 R3 computer that came with Windows 10 preinstalled on a 1TB ...
0
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0answers
12 views

Can't boot windows after both windows and linux were working together (Get Repair Windows Option)

I had both OSs working together, then I did a chown on an external HDD and can not longer boot windows. Drives: SSD 223 GiB sda1 fat32 142 MiB boot,esp (UEFI Boot) sda2 ext4 37 GiB ...
0
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1answer
29 views

Ubuntu won't boot when choose “Try Ubuntu without installing”

I'm trying to install Ubuntu 14.04 to my PC's HDD which has ASROCK's UEFI and windows10 already installed on an SSD. I know there are some problems with installing Linux distributions on UEFI ...
0
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1answer
22 views

HP Pavilion X2 10: Cannot boot Windows 10 efi [on hold]

I have this new model of detachable HP Pavilion X2 10 (n182ng). I am not able to boot into USB installer for Windows 10. I downloaded iso from Microsoft site and copied onto pendrive using Disks ...
0
votes
1answer
32 views

Usb flash drive doesn't show up on Bios Boot Manager

I'm having some troubles with reinstalling ubuntu on my Acer Aspire E15 laptop. I made a bootable usb with Ubuntu Server on it. If I try to boot it in UEFI mode (the mode that I've already used to ...
0
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0answers
36 views

Windows Boot Manager is not loading

I installed Ubuntu over Windows 8 in my HP laptop. After installing Ubuntu over Windows 8, the first problem occurred. First problem is Ubuntu grub is not loading and directly goes to Windows 8. Using ...
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0answers
15 views

Windows 10 and Ubuntu - No “Run alongside Windows” option

This is a followup of the question I posted yesterday as I was having problems even getting to the Ubuntu installation, and the answers were appreciated. I've been able to get to the process of ...
1
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1answer
4k views

file error /boot/grub/i386-pc/normal.mod trying to repair boot, live dvd install probleml

I have seen that there are a lot of threads about this problem. I had Windows 8 installed on my series 3 samsung i5 computer and I tried to install ubuntu 13.04. This is what I did: Because of the ...
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0answers
34 views

Ubuntu won't boot on asus gl552vw

Few days ago I bought a new laptop, the asus gl552vw-dm149 with the following specs: Processor: i5-6300hq Graphic card: nvidia gtx 960m Ram: 12GB ddr4 2133Mhz SO: Windows 10 When I try to boot ...
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5answers
9k views

Dual boot Install of Trusty Ubuntu on an HP with Windows 8 (64 bit) pre-installed (UEFI supported)

Yes, I have read, many times, "Installing Ubuntu on a Pre-Installed Windows 8 (64-bit) System (UEFI Supported)," and I have read the "UEFI" piece with the subtitle "Installing Ubuntu Quickly and ...
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0answers
34 views

Problems with dual boot (phoenix tiano BIOS), ubuntu-windows 10 [duplicate]

I would install Ubuntu in dual boot with Windows 10 (current operative system), from a USB drive. When I enter in BIOS setup, in the page where I have to select boot priority order I see only "Windows ...
3
votes
4answers
40k views

Making a Bootable USB flash drive which will boot in EFI

I have recently bought a laptop with windows 8 (EFI) installed. I thought I'd be able to handle installing 12.04.2 relatively easily - how wrong could I be? Using a live-usb I made using startup ...
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0answers
10 views

Legacy PC mode errors when repairing GRUB

I recently installed Ubuntu 14.04 and installed Windows 7 on a separate partition. While I can boot up Windows, I cannot boot up Ubuntu anymore. I created the Boot Repair Disk to repair GRUB for ...
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2answers
730 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 ...
2
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0answers
68 views

debconf uefi disabling almost breaks system

I am using Lubuntu 14.04 and use the graphical update manager to keep my system up to date. Today I was installing a bunch of updates, when a window appeard that told me, that a tool named "debconf" ...
5
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1answer
186 views

Has 3.19.0-65 introduced new Secure Boot requirements to 14.04 LTS?

My laptop came with 14.04 (Trusty Tahr) LTS. Since then, I have made no significant changes, and I have been applying updates whenever I was notified of them. On 2016-07-15, I was applying updates ...
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3answers
6k views

Why disabling “Secure Boot” is enforced policy when installing 3rd party modules

When installing 16.04, I was asked to turn off "Secure Boot" if I wanted to install 3rd party modules/drivers. I did not comply. And when I installed manually the only 3rd party drivers I use (bcmwl-...
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1answer
29 views

Problems UEFI booting after software update

I have an Acer Extensa 2511 where I installed Ubuntu MATE 16.04 (Windows is not installed) Today, after a software update (which required a reboot), the reboot failed. I ran boot-repair. After that, ...
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3answers
5k views

How do I install (to dual-boot) Ubuntu on this UEFI MSI GE40 2OC-218USK laptop?

I have a GE40 2OC-218USK laptop. I am trying to repartition the hard drive to have it dual boot Ubuntu and Windows 8. Nothing but endless problems. I've been progressively turning more and more ...
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3answers
244 views

Is this how I tell whether or not I have “third party drivers”?

So installing updates on my 14.04 64bit UEFI system this morning, got these: Install: libefivar0:amd64 (0.21-1~14.04.2, automatic), mokutil:amd64 (0.3.0-0ubuntu3~14.04.1, automatic) Upgrade: shim-...
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0answers
22 views

Restore Windows 7 MBR with GRUB2 [closed]

On my computer i had dual boot Windows 7 (on HDD 1) and Linux Mint (on SSD). I bought a new computer with another Windows 7 preinstalled on a new harddrive (HDD 2). Then i added my linux disk (SSD) ...
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0answers
7 views

Latest ubuntu install: “Reloc offset is out of the segment”

I am trying to install the latest release of ubuntu, that is 16.04, on a recent machine using UEFI. I am using a USB stick, which worked properly on another computer of mine (so I know the image was ...