Questions tagged [uefi]

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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Unable to boot from Ubuntu 20.04.02 live usb

I have Dell XPS 9500 and I am unable to boot from live-usb created via Rufus (or via regular 7z x ) whatever partition option I choose (MBR/GPT) neither disabling secure boot seem to work. I have an ...
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Back-up of system partition image: must the UEFI partition be copied too?

For the purpose of this question (asking how to backup and restore a ext4 uefi system partition) I have realized that the small UEFI partition might be needed too. Should we make a backup of both ...
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Can't get into BIOS/UEFI. None of the function keys work on startup

So, when I start up the computer it shows me the diagnostics splash screen, as it's supposed to, but then after that, the only thing on the screen is a little white line in the top left corner for a ...
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24 views

Moving GRUB from main drive to an external drive

I needed a linux-based system for my work, and because I rely on windows and have no other devices, I wanted to dual boot windows and ubuntu. In my case, I had an external SSD, so I decided to install ...
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Boot problem with Ubuntu 21.04

I understand that Ubuntu has admitted and is working on a fix for a boot problem on 21.04. How long is the fix likely to be ready? Its all very frustrating and time consuming. Is there any interim, ...
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15 views

How to get out of this kernel panic? (End Kerbal panic - not syncing)

First of all I was formating a USB so I can put a windows 10 ISO on it. But I got a few dpkg errors when is as trying to install woeusb, now I boot to this. First I see it saying the EFI failed to ...
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40 views

When trying to install GRUB to the USB flash drive from full Linux, grub-install: error: failed to get canonical path of `/efi/boot'

I am trying to install GRUB to the USB as a bootloader so that I can boot to a system that normally can't boot to NVMe. It is preferred to use secure UEFI boot style. For a guy who is completely new ...
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25 views

Accidently disabled Windows 10 Boot [closed]

I was running dual boot on my HP Envy x360 with Windows 10 Home and Pop! OS (This problem would have been very similar on Ubuntu). I was trying to get Pop to boot as a default and downloaded EasyUEFI. ...
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36 views

efi system partition problem while upgrading distribution

I have dual boot win10/ubuntu-linux. i want to upgrade my Ubuntu 20.04 to 20.10. but in process, i am getting an error that says: Efi System Partition (ESP) not usable I've tried: sudo mount /boot/...
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How can I instruct apt, not to make EFI changes

I have Ubuntu installed on a USB stick, which is plugged into an otherwise fully functioning machine. When I boot to the USB stick (using a manually configured EFI boot entry for the USB stick) and ...
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So, I installed ubuntu 18.04 from a bootable usb, but when I restart after the installment windows 10 opens not ubuntu again

So, I have a dell G3 3579, and I have windows 10 as its operating system, and my college requires me to install Ubuntu 18.04. Thus, I decided I'd install it from a bootable usb along sides windows. ...
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Ubuntu 20.04 does not boot on Aorus X570 Ultra

I have Aorus X570 Ultra (rev 1.0) and AMD Ryzen 9 3900X. The problem is that neither Ubuntu 20.04 nor 21.04 boot after successful installation. The image was burned with Rufus (GPT, UEFI (non-CMS)). I ...
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How to dual boot windows 10 with Ubuntu 20.04

I'm using HP Pavilion G6 PC, there are many videos online to dual boot, I'm just confused which to follow. I tried one earlier and I could not make grub menu appear on startup. I tried many things to ...
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Ubuntu 20.04 Seems to Suspend When Installing on Tablet

I'm trying to install Ubuntu 20.04 Desktop on a Teguar 2945-10 found here: https://teguar.com/10-inch-fanless-panel-pc-tp-2945-10/ The issue is, when I try to install Ubuntu via a bootable USB, the ...
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How to delete Windows Boot Manager

During the installation of ubuntu 20.04 on a spectre x360 15-ch011dx I chose to delete windows completely, but I still have the option Windows Boot Manager on the BIOS boot sequence. How can I delete ...
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21.04 okay if boot from bios?

On my System76 ratel pro (bought in 2015) the command: dmesg | grep "EFI v" produces no output (whereas on my galago pro laptop the same query gives me v2.60). I read that this means the ...
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51 views

Grub menu not showing on startup

I have dual booted my HP Pavilion g6 Notebook PC with Ubuntu 20.04 LTS alongside my windows 10. Whenever I restart my PC, it is directly loading into windows by default without showing the grub menu. ...
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Boot freeze at grub menu

I have an HP ENVY 360 that is dual-boot with ubuntu 20.04 and windows 10. The system has been working fine until recently, now it freezes at the grub menu. My workaround is to press F9 (boot menu) ...
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31 views

Trying to install Ubuntu 20.04 along side Win10 in Legacy mode, getting “no efi system partition was found” error

Basically what the title says. I have chosen the "something else" option since for some reason windows 10 wasn't being detected. I created a root partition, swap partition, home partition ...
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17 views

Unable to mount /dev/loop0 during install ubuntu 20.4.2.0 in UEFI mode alongside with Windows 10

(initramfs) mount: mounting dev/loop0 on //filesystem.squashfs failed: Input/Output error Can not mount /dev/loop0 (/cdrom/casper/filesystem.squashfs) on //filesystem.squashfs How to get rid from this....
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Why does shim/mokmanager allow to circumvent _ALL_ protections of SecureBoot? And how to fix it?

Here is what I have done: Generated my own SSL keys (db, KEK, PK) x (cer, key) Removed existing signatures from kernel, GRUB, shim (and all other EFI binaries in /boot) and signed them with my own ...
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Laptop won't boot anymore after uninstalling Firefox (Ubuntu Mate 20.04)

thanks for reading and giving support. This will be hard. I've a laptop, Lenovo IdeaPad 100 15YIB , with originally only Windows 10 Home as OS. I've succesfully installed Ubuntu Mate 20.04 LTS a few ...
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58 views

Airplane mode not disabling on Ubuntu 20.04

Problem: Laptop : HP 15 r074 tu OS: Ubuntu 20.04.1 LTS with Windows 10 dual boot. In Ubuntu not able to turn off Airplane Mode, it says "Use hardware switch to turn off" but my laptop don't ...
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Dual boot ubuntu stuck on HP Notebook 14s model windows 10

I'm trying to install new ubuntu version 21.04/20.04 from my windows 10 but it's stuck after selecting Ubuntu from GRUB. My HP windows BIOS mode us UEFI and disabled Secure boot mode. Downloaded ...
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106 views

Why another machine does not boot on the same disk with EFI and Ubuntu?

I have an external hard disk containing an EFI system partition, a Ubuntu 20.10 partition and some other partitions, including Mac OS X, so it works as dual boot. I have two Macbook Pros: v 5,5 Intel ...
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32 views

How to ensure that my computer/laptop has a legitimate and not tampered uefi/bios

How do I verify that a pc/laptop has a legitimate and not tampered uefi and/or bios? Let's say I was doing somethings which potentially could be dangerous. I have inserted some unknown hard drives or ...
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283 views

21.04 UEFI boot fails: Could not create MOKlistXRT: Out of resources

I'm getting the errors Could not create MOKlistXRT: Out of resources and something has gone seriously wrong: import_MOK_state(): Out of resources when trying to boot 21.04 clean installed from a ...
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41 views

secure boot problem on acer nitro 5 (2021)

Trying to install Ubuntu 20.04 on an acer nitro 5 (amd ryzen 5600hs and nvidia GTX 3060. set up a password as requested during install, then re-enter the password on first boot to setup the keys, but ...
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51 views

GRUB Minimal bash-like editing is supported

I had Ubuntu 20.04 installed on my SSD and then I decided to remove it and install Windows 10. When I start my Windows installation I format all partitions and install Windows. But now I can't boot to ...
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37 views

How to manage two efi parition for two different installations of ubuntu?

Recently my hard drive I gave me some bad sector. Just a few days ago there was a corruption of data. So it seems my hard drive is reaching the end of its life. So one option was to buy a new hard ...
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19 views

Tried to setup Windows/Ubuntu Dual Boot - Can't get back to windows 10 now

I have a SSD (Crucial) and HD (Western Digital) in my PC. I have everything I need and my windows 10 installed on the SSD. I successfully installed Ubuntu on my HD after formatting it. Now when I boot,...
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507 views

efi: Failed to lookup EFI memory descriptor

Ubuntu 21.04 hirsute (x86-64) kernel: 5.11.0-16-generic journalctl -b esrt: Reserving ESRT space from 0x0000000089cd3198 to 0x0000000089cd31d0 e820: update [mem 0x89cd3000-0x89cd3fff] usable ==> ...
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52 views

How to create a secure boot enabled USB flash

I want to create a Ubuntu bootable USB flash and install my apps in that, then pass USB to any other person. they should run Ubuntu from USB flash and run my applications from it, so that nobody could ...
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38 views

Ubuntu and Windows Dual-boot Automatically Starts Windows (NO ACCESS TO UEFI/BIOS)

I think my laptop is totally broken at this point, here’s what happened step by step. I was trying to do an assignment using Hadoop and while installing Hadoop it required permissions so I kept ...
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184 views

efi partition Issue

How to restore my GRUB so that my laptop boots properly? Update 1: Is there a possibility that there are 2 grubs installed, Is that the reason the outputs from ls commands are different (outputs are ...
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37 views

Why is windows installation media giving Boot\BCD error?

I've tried creating a windows 8 and 7 installation media from Ubuntu 16.04 using WoeUSB UNetBootIn GParted In all the above cases I got the Boot\BCD error. Error code was 0xc000000e. The BIOS ...
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2answers
221 views

Creating a PC-Boot-able Ubuntu Installation

I am a newbie with Ubuntu and am trying to make a USB stick that will boot Ubuntu on my PC (a Surface Pro) so that, without affecting the PC, I can boot up Ubuntu when I like and use it as an ...
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70 views

Dual boot only booting into Windows, no option to choose between Windows or Ubuntu

I have a problem. I have installed Ubuntu alongside Windows 10 on my HP Envy x360 laptop. I went trough the whole setting-up process and at the end Ubuntu told me to restart my computer, so I did. ...
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1answer
45 views

Cannot boot ubuntu after fresh install

I am new to Ubuntu. I have erased windows and installed Ubuntu 20.04. But after installation I am not able to boot. In BIOS I can see Ubuntu option but when I click nothing happens. I am using ASUS ...
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1answer
74 views

GRUB Issue on UBUNTU 20.04

My Laptop: asus rog gl503ge. Dual boot with Ubuntu and Windows, where my ubuntu is installed in D drive. Story: Recently, I have tried to install Ubuntu into a pendrive so I followed this https://www....
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19 views

GRUB multiboot more than one copy of windows (UEFI)

I've been running a UEFI boot configuration for a while using GRUB menu, Ubuntu and two copies of Windows 10. To boot to Windows 10 I have to select Windows from the GRUB menu, and then I go to the ...
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1answer
55 views

Grub Bootloader issue with Dual Boot/Dual Drive Install Windows 10/Ubuntu 20.10

So, I am trying to install Ubuntu alongside my Windows 10 Pro. However, I am sure that I am complication it by trying to install Ubuntu on a separate nvme ssd drive. So to elaborate, my Windows 10 ...
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46 views

Neither GRUB Nor Windows Recognize Each Other [duplicate]

SOLVED: I mis-installed it. Thanks David. I installed Ubuntu 20.04 alongside a preexisting Win10 installation. Now, neither OS recognizes the other's presence. I can miraculously use both, but it's a ...
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19 views

How do I delete one Ubuntu from several Ubuntu's but keep its grub and boot loader?

I am in trouble with my computer. I installed Windows10 at first. I then installed Ubuntu 18 and the grub occurred every time I boot my computer. Later, I installed Ubuntu 16. The grub of Ubuntu 16 ...
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16 views

Have installed Ubuntu to sd card but unable to boot

Afternoon all, I've installed ubuntu to my SD card in my XPS 13 2in1. I am unable to boot from it due to the absence of grub I think - it just kicks me into windows. Am currently booted from the ...
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1answer
40 views

Windows 10 bootloader missing in GRUB menu over night

I am running a dual boot system on separate SSD. 1.SSD NVMe 256GB Windows 10 came pre installed, upgraded one week ago to PRO. 2.installed my own Samsung 1T 2.5 SATA SSD and installed Ubuntu version ...
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1answer
34 views

How can I set a specific Operating System to boot using bash (UEFI)

I want to create a Script that, when executed, changes the boot order to boot a specific operating system with a known partition, like the MacOS "Start Volume" setting. Is there any way this ...
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75 views

[Firmware Bug]: TPM Final Events table missing or invalid

I saw following error message recurring several times on kernel log. Can anybody make an interpretation of it? efi: EFI v2.40 by INSYDE Corp. efi: SMBIOS=0x8c630000 ESRT=0x8c62ef18 ACPI 2.0=0x8cffd014 ...
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24 views

Lubuntu folder created?

Groovy Gorilla Linux zika 5.8.0-48-generic #54-Ubuntu SMP Fri Mar 19 14:25:20 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux Last month I did some boot/grub/bios/UEFI settings, trying to get confused a bit ...
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19 views

Grub not displaying after installing ubuntu alongside windows 8

I have windows 8.1 in legacy mode and I installed ubuntu in UEFI mode in a free disk space. Now grub is not displaying on startup and it automatically loads windows. I tried to disable legacy mode ...

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