Questions tagged [uefi]

For questions about the Unified Extensible Firmware Interface, commonly used in later x86 computers as a replacement of BIOS, as well as in ARM servers and more. UEFI supports booting with and without Secure Boot enabled and legacy booting via CSM.

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Dual boot Ubuntu 16 and Windows 10 on different devices

I have used this tutorial to dual boot my system using Windows 10 and Ubuntu 16, both on GPT/EFI mode. First, i installed Windows 10 in EFI mode on my 256GB SSD, then installed Ubuntu 16 in EFI mode ...
behzad mehrtash's user avatar
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Boot failure after GRUB failure with no prompt (version 2.02~beta3-4ubuntu7.2) and Ubuntu reinstall

I have a computer with a Ubuntu+Windows dual boot which has been working fine for years, but turning it on today GRUB is frozen and nothing I can try will change it... I have no prompt, and my ...
Arthur Spoon's user avatar
1 vote
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544 views

Fix multiple grub loads

On my laptop I have a dual boot system with Ubuntu 17.10 and Windows 10. After having messed up a little my Ubuntu installation, I decided to install a new 17.10 from scratch, formatting the root ...
zizzo's user avatar
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Ubuntu budgie freezing

I'm new to linux. I'm trying to install Ubuntu budgie on my laptop and unfortunately it freezes randomly after a few minutes into it. I'm coming from a completely clean format of an SSD and I'm ...
iwanttotryubuntu's user avatar
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2 answers
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Problem after reinstalling Ubuntu

I have a PC with Ubuntu as the only OS in it. I installed Ubuntu 16.04.2, but I reinstalled to update it. Now I keep getting, This machine's firmware has started the installer in UEFI mode ...
user797325's user avatar
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The flag 'boot' is not available for loop disk labels

I tried to make a bootable usb key, I followed the instructions in this link : How to create UEFI-only bootable USB live media? I run : 7z x ubuntu-16.04.3-desktop-amd64.iso -o/media/user1/OCZ/ ...
Slim's user avatar
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Realtek HD Audio Driver (Beats Audio) issue

My Laptop is "HP Envy 15-k020us" and this laptop has beats audio enhancement. I recently installed Ubuntu 17.10. But I noticed that Beats Audio is missing. The sound is too dull. I tried to find a fix ...
Mislam's user avatar
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Lubuntu installation gets stuck

I am trying to install Lubuntu 17.10 alongside the pre-installed Windows 10 on my Lenovo Miix 320. It seems that to get the live boot work I have to enable secure boot and disable Intel platform trust ...
rikhart's user avatar
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Question about installing Ubuntu on a UEFI system?

I am going to be installing Ubuntu on a UEFI system for the first time, however I a bit hesitant. I will be replacing Windows 10 (upgraded from 8) with Ubuntu I am going to disable secure boot as I ...
Andrew's user avatar
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USB Boot Drive never detected in UEFI

Recently I've been trying to install Ubuntu alongside my Windows 10 installation. I've already shrinked my C: partition by 200GB, so there's plety of space. However, after mounting the Ubuntu iso on ...
Leocano's user avatar
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Reinstall Ubuntu 16.04 with UEFI, LUKS encryption and LVM

I had a disaster following an ubuntu update that went wrong end result was my /boot dir got deleted it also seems that my /proc dir also now contains nothing when I boot the machine it just drops ...
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In 2018 and with Ubuntu 16.04 installed, can I still make a backup of the MBR with dd?

A few years ago I used to backup the MBR of a (now old) laptop with: dd if=/dev/sda of=mbr_63.backup bs=512 count=63 Well, this was the first 63 sectors, a bit better than the MBR only, I think. ...
Mephisto's user avatar
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16.04 satellite c55-c5268

I have been trying mightily to fix my wifi on this pc with a full Ubuntu 16.04 installation - no windows partitions; straight ubuntu. I have tried many of the suggestions including drivers bcmwl-...
DPJG's user avatar
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Can't start any linux distro from usb

Long story sort, I created a bootable usb of Ubuntu 16.04 LTS (or Linux Mint) with rufus (tried with Unebootin and Etcher too). I start my pc, enter boot menu and choose to start from my usb on UEFI (...
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370 views

Dual boot Ubuntu 16.04 grub doesn't show up only can get to Ubuntu by F9 boot options

I've installed Ubuntu 16.04 alongside Windows 10 version 1703, on my HP-15-bw0xx, and made /boot, /, /home partitions. After few initial boots Grub stopped showing up. So when I press ESC button ...
Divyesh Parmar's user avatar
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1k views

How can I repair my legacy boot of Xubuntu 16.04 (RESOLVED)

Some time ago, I installed Xubuntu 16.04 on a SONY VAIO SVE1512E6EW that had a pre-installed Windows 8. As I didn't succeed in having both in UEFI mode (no grub screen and allways started in Windows 8)...
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Ubuntu 17.10 - Can't change Bios settings, and can't boot into Bios from Grub

I'm running Ubuntu 17.10 with gnome on a Lenovo B40-70. This install is actually an in-place upgrade from Ubuntu Gnome 17.04 that I did the day 17.10 came out. After that, I never needed to go into ...
cgifox's user avatar
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Ubuntu boot mode conflict when installing to new (empty) SSD

I'm trying to install Ubuntu 16.04 from a USB onto my brand new SSD, but I get the following message (see below). I've seen a bunch of posts about this, but none involving installing onto a new hard ...
Y T's user avatar
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1 answer
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Installing Ubuntu on a MacBook Air 7,2 keeping MacOs recovery

I am currently running macOs High Sierra on a MBA Early 2015 (7,2) and I would like to install Ubuntu on it as main, only OS. Is there any way to install Ubuntu (17.10 at this moment, but any recent ...
evernever's user avatar
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Ubuntu boot failed and Windows Boot Manager boot failed

I had Ubuntu 17.10 installed beside Windows 10 and all things were working normally. I deleted the Ubuntu partition then the windows partition and finally formatted the hard disk. Now when I open the ...
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GRUB boots Ubuntu to dark purple screen, forced to override with Advanced options works but how do I set that as the default?

The Details I am dual booting Ubuntu 17.10 on a Razer Blade 14" that also has Windows 8.1 installed. On boot, it shows the dark purple-ish GRUB screen, stating "GNU GRUB Version 2.02~beta3-4ubuntu7" ...
Spencer Hill's user avatar
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844 views

Ubuntu 17.10 not recognizing a partition set aside for Linux (dual-boot with windows 10)

I have a fairly recent DELL XPS 15 with Windows 10. I'm trying to dual boot Ubuntu 17.10. I've written a bootable USB using rufus but when I get into Linux (live version or the installation program), ...
Shahbaz's user avatar
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Cloning a Ubuntu installation (including repositories, held packages & keys)

From How to list all installed packages we learn how to backup list of installed packages. From How to See list of Repository? we learn how to backup list of installed repositories. But how do we ...
WinEunuuchs2Unix's user avatar
1 vote
2 answers
4k views

Ubuntu 16.04 Boot-repair error Locked-ESP detected

I am using boot-repair from a live ubuntu session to recover my OS and getting the error- Locked-ESP detected. You may want to retry after creating a /boot/efi partition (FAT32, 100MB~250MB, start ...
GAURAV KUMAR RANA 's user avatar
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85 views

Unable to boot any Ubuntu based distro, Is it my motherboard?

I've used Linux before and was a big fan. switchbacked to windows for a little bit (5 months) and realized that I wanted to go back :). Sadly every distro I've tried (outside of fedora strangely) have ...
C4T N1P's user avatar
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527 views

Why can't i boot directly from a disk image i made?

I had a Kubuntu 16.04.3 installed on a computer but it was slow, so I put it's HDD into an enclosure and dd-ed it. The command was sudo dd if=/dev/sdh of=/mnt/KUBUNTU.IMG; sync. After that was done, I ...
Weylyn Savan's user avatar
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0 answers
1k views

Reboot and select proper boot device or insert boot media after installing Ubuntu GNOME

I have finished installing Ubuntu GNOME 17.04, and restarted when it told me to. When I restarted, my computer rebooted back into the USB drive, so I turned the PC off, took out the USB, and turned ...
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452 views

Ubuntu 16.04.3 installed but not starting; TPM error

I have a HP Compaq Elite 8300 SFF (bought refurbished with Win10 Pro prepared). It has an SSD and started installation of Win10 after switching on. Worked fine. I've installed Ubuntu 16.04.3 from USB ...
Arwed's user avatar
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0 answers
246 views

Can't load Windows 10 after updating Ubuntu 16.04 LTS

Previously, I have Ubuntu 16.04 and Windows 10 installed on my laptop. Also I already configured the GRUB menu so it works perfectly fine. I was using Boot Repair once since my last problem and it ran ...
WVXWV's user avatar
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0 answers
519 views

Error when booting Ubuntu after installing

I want to install Ubuntu on my Acer Aspire E14 with the UEFI configuration. I ran the Ubuntu 17.04 installation successfully, but when I finished the installation process it asked me to restart. Up ...
Nataniel Gigena's user avatar
1 vote
0 answers
526 views

Dual Boot Windows 10 and Ubuntu 16.04 Troubles

System: MSI X370 Sli Ryzen 7 32GB DDR4 Ram 1TB HD << this is where windows is already installed 500GB SSD << where I try to get Ubuntu I tried to create a dual booting windows 10 and ...
Jonas's user avatar
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1 vote
0 answers
1k views

Ubuntu not recognizing Windows 10

I've got a Dell Inspiron i5559 which is about a year old. I have been trying to get Ubuntu to dual boot with Windows 10, which I already have on my laptop. However, every time I try to install it, I ...
JordanS81's user avatar
1 vote
2 answers
245 views

Ubuntu filesystem breaks after rebooting from Windows

I've got a Windows 10 UEFI and Ubuntu 17.04 UEFI on a GPT partition system. Each time I reboot to windows and then try to get back to Ubuntu I get this error: So I have to enter these commands to ...
Mike Elahi's user avatar
1 vote
1 answer
1k views

Toshiba satellite can't boot

I've a Toshiba satellite laptop and I tried to get Ubuntu along with the windows. There was a black out after the Ubuntu installation was complete so I forced off my laptop but when I restarted, dual ...
user708671's user avatar
1 vote
1 answer
555 views

Installed Ubuntu, but when I boot it always brings me to grub rescue

This is my first time posting on this website so I hope you can help me out! I downloaded Ubuntu recently, but ever since whenever I boot my computer I get brought to the grub rescue page. The only ...
Branden Bortner's user avatar
1 vote
1 answer
166 views

Forced UEFI when installing 17.04. Way to undo this?

I stupidly forced UEFI installation and now my computer will not boot into my windows partition. Is there any way to undo this?
Michael McFadden's user avatar
1 vote
1 answer
2k views

Ubuntu 17.04 will not boot after installing on UEFI laptop

I wanted to wipe Windows 10 off my laptop and just have Ubuntu on it. I had heard that it was safe to install it on UEFI hardware so I just went through the standard install and told Ubuntu to erase ...
E. Carr's user avatar
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1 vote
1 answer
408 views

boot-repair Messed up MSI laptop boot time

I have a msi GE62vr laptop that I installed windows 10 when I bought it (it was freedos). After a while I decided to install Ubuntu 16.04 LTS as dual boot on the HDD (Windows is on SSD). Everything ...
Rockybilly's user avatar
1 vote
0 answers
696 views

Bootable usb ubuntu, unable to find in bios, change boot sequence on Dell laptop?

I installed full ubuntu on a usb-stick and it works but as soon as I've used windows 10 once I can't find the ubuntu option in my bios anymore. I wondered if it had something to do with my boot ...
Joris Wouters's user avatar
1 vote
0 answers
105 views

Trouble on repairing EFI partition

Partition table I`m trying to repair the EFI partition while reinstaling Ubuntu. I created the sda1 partition (FAT32, "boot" flag and mount at /boot/efi), but my notebook does not recognize the HD as ...
potato_free's user avatar
1 vote
0 answers
332 views

X370: Only half of my memory is available

I just installed a workstation with - Ryzen 7 1800x - Asrock X370 Professional Gaming, freshly updated UEFI 2.20 - 4x 16GB Kingston KVR24E17D8/16MA PC4-2400 ECC RAM The BIOS detects all 4 RAM bars ...
user23563's user avatar
1 vote
0 answers
1k views

Automated UEFI install not working (ubuntu desktop)

I wanted to create a UEFI bootable usb-stick/sd-card that I can use for an unattended install of Ubuntu Desktop 16.04 Steps taken: unpacked iso file copy preseed file to root of unpacked directory ...
Jeroen Jacobs's user avatar
1 vote
0 answers
503 views

Ubuntu not installing on Lenovo ThinkPad E460

I have been trying to install Ubuntu (and other *buntus) on our new E460, but after installation, it attempts to boot to PXE (network boot), then only shows the hard drive on a boot management screen, ...
Jackie.Elle's user avatar
1 vote
0 answers
306 views

Unable to Install Ubuntu 14.04 and 16.04

I've been having a bit of difficulty with an Ubuntu 16.04.2/14.04.2 install. Machine specs are as follows: MoBo: ASUS Rampage IV Black Edition BIOS Version: 8001 CPU: Core i7 4930K RAM: Corsair ...
Mike Ward's user avatar
1 vote
0 answers
213 views

Need help to boot Ubuntu after Failing to mount EFI

Last week I managed to crash my Windows fataly and I had to reinstall it. Obviously that meant that my Grub disappeard afterwards and I did my job using Boot-Repair to get it back. Since then I ...
maperz's user avatar
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1 vote
1 answer
1k views

Dual boot windows 10 and ubuntu 16.04 on ssd+hdd not working

I just bought my laptop with windows 10 on it, and two disk an SSD and HDD. Windows 10 is already installed on SSD. I partitioned HDD into 3 partitions and one of the partitions I installed ubuntu ...
zeroday's user avatar
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1 vote
1 answer
275 views

Ubuntu 16.10 installed under UEFI mode, now can't boot into Windows 10 or Ubuntu, getting grub rescue

After reading around on the internet and even trying the ubuntu forums, I've decided to come here for help. Here's some information that may be useful: My partitions are as follows (as seen from the ...
BRUTIK's user avatar
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1 vote
0 answers
186 views

Grub is broken again, this time I can't repair

I have a dual PC, I use Ubuntu as main OS and have a Windows 10 for some tasks. When I installed Grub was correct and I could select any OS to start up. From time to time it got broken and normally an ...
K. Weber's user avatar
  • 361
1 vote
1 answer
961 views

Unable to boot Ubuntu on Acer Aspire ES17

After initially trying to install dual booting Ubuntu+Windows 10 and now having removed Windows 10 (made back-up with Macrium reflect), I'm trying to install Ubuntu (unsuccessful for many days). I ...
Antillogorgia Hystrix's user avatar
1 vote
2 answers
1k views

How to get back EFI partition

I have Ubuntu 16.04 installed alongside Windows 10. I have been able to use both, however recently after shutting down windows I am unable to find any OS installed in the system. The output of the ...
zenosama's user avatar

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