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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UEFI Booting With Encrypted /boot On Ubuntu 14.04 LTS

I have managed to get FDE working quite happily on an MBR/BIOS system using a DOS partition table, I only have /dev/sda1 for swap and /dev/sda2 for the swap and root LUKS containers respectively. This ...
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16 views

EFI boot from USB - drops to initramfs

I have attempted to follow this guide: https://help.ubuntu.com/community/Installation/UEFI-and-BIOS/stable-alternative It seems to have gotten partway through the boot process. From OSX, the list ...
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14 views

No boot loader found after clean install ubuntu

I just formatted a samsung laptop: NP905S3G I installed ubuntu 15.04 and at the end it gave me an error saying that it could not add the boot option or something. I don't remember. Then i used boot-...
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17 views

Installing Ubuntu with secure boot on and no way to disable it? [migrated]

I don't have any OS installed. I wanted to install Win10 but it failed with error code 0x80070570 during install. Now, I want to go back to Ubuntu but I am not able to (Only Unetbootin screen shows ...
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26 views

Trying to install Ubuntu alongside windows 10 gives a blank screen after grub showing “install Ubuntu”

I tried installing Ubuntu 15.04(later on i tried 16.04 also) alongside with my windows 10. I followed the instructions from the following link to install. Install Ubuntu 16.04 alongside Windows 10 ...
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19 views

New to Ubuntu! Fresh PC build! BIOS issues!

I've recently built a new PC (ASUS Z170A / Intel i6700k). Installed Ubuntu via USB, everything was going great. Stoked that PC booted up and installed on the first try, no problem. Set up OS, ...
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15 views

I have messed up my efi booy partition and now when i startup my computer it's only showing me ubuntu in boot menu and app menu is empty

I installed ubuntu on my whole hard drive. I mistakenly deleted the /dev/sda1 (efi/some place) which i didn't know will cause troubles. Now when i boot my pc it just show me a window (dos like) which ...
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37 views

High temperatures from sensors on Asus Zenbook UX501 VW

I bought a new laptop: Asus Zenbook UX501VW, i7, 24GB RAM, 512 SSD, Intel Graphics + Geforce 960M. sensors returns this: acpitz-virtual-0 Adapter: Virtual device temp1: +65.0°C (crit = +103....
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14 views

Is there any way to install ubuntu alongside win 8 in HP laptop?

In my HP Pavilion with pre-installed win8, I had tried to install ubuntu latest version and 15.10 also many times with different ways alongside the win8 but all went in vain. I cannot understand why ...
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2answers
24 views

After installing BURG my computer no longer boots Windows.. someone please help

Ok so to start with I have an Alienware X51 R3 desktop computer. Yesterday I decided that I wanted to be able to dual-boot Windows 10 (the default OS) and Ubuntu 16.04. So to do this I freed up 40g ...
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30 views

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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15 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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18 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
36 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 Ubuntu 16.04, but I decided to change my operating system to Windows 10 (It was working before, let's say 1 year ago). At boot time I only ...
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29 views

USB boot option is not in boot options, only boot with EFI and HDD

I have 1TB HDD, installed ubuntu on it with no partitions. I realized I am very uncomfortable with it and need to install Windows. For that I made a bootable USB using unetbootin (it worked fine as ...
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1answer
35 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
35 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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1answer
18 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,...
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1answer
38 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 ...
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17 views

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

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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9 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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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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1answer
40 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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2answers
29 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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34 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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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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1answer
15 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 ...
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1answer
37 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 ...
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1answer
27 views

HP Pavilion X2 10: Cannot boot Windows 10 efi [closed]

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 ...
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17 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 ...
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1answer
34 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 ...
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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 ...
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0answers
35 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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0answers
11 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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0answers
73 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
224 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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1answer
31 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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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 ...
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0answers
9 views

WIFI doesn't work after update without secure boot off [duplicate]

I've just received big bunch of updates on my new laptop with pre-installed Ubuntu 14.04. Update asked me to turn off secure boot but I ignored it. After restart WIFI stopped working. Turning secure ...
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1answer
24 views

I need help installing a UEFI boot

Ubuntu installed without errors but the system will not boot to it, says it is not a valid operating system. Secure boot is off. The system boots to a different hard drive installed on a non UEFI ...
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3answers
135 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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0answers
42 views

Problem getting Bios to boot Lubuntu on HP ZBook 15

My Problem is, I have a hard time getting my HP Zbook 15 to boot lubuntu now, it a long time ago could boot normal Ubuntu with out issue, but issues from my work had me get rid of Ubuntu and switch to ...
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0answers
37 views

Ubuntu update has screwed GRUB

I am running 16.04 on an UEFI mobo, no dual boot etc. I was working just fine but have been unable to reboot since an update earlier today. Booting brings me to a grub rescue prompt and a message that ...
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0answers
17 views

error: premature end of file /casper/vmlinux.efi alloc magic is broken at 0x7a2d93c0: 7a179da0 aborted. press any key to exit

Wish to install Ubuntu 16.04 LTS on a MacBookAir6,2 (dual boot with macOS Sierra). I created USB stick with Ubuntu image. brew cask install unetbootin I pressed at boot ALT key and entered "...
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3answers
254 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
20 views

Why doesn't GNU Grub appear or the option to boot into Ubuntu after installing Ubuntu?

I just tried to install Ubuntu alongside a computer that had Windows 10 installed and I think I did so successfully. I was given the prompt and asked to enter my time zone etc. After I did all this, ...
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0answers
26 views

Losing wired connection on ubuntu several times a day (segfault)

Several times a day I lose wired network connection. It is restored after a while. Last time it happened, I looked at dmesg and found this: CHTTPClientThre[12511]: segfault at ee931b6e ip ...
1
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2answers
18 views

Ubiquity mounts wrong ESP during install

I'm installing Ubuntu 16.04 onto an external HDD (sdb). My computer also has an internal Windows 10 HDD (sda). When at the partitioning stage, I chose for the boot loader to be installed onto the ...
2
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1answer
39 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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50 views

Can't access Ubuntu after fresh installation - secure boot violation?

I spent hours trying to make my laptop working. I'm quite not-experimented but I usually find my way by trying out things I find on forums and websites... But this time, I can't seem to get through it....