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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Damaged EFI partition

There appears to be a problem with the EFI partition on my hard drive. Using my Kubuntu 18.04 flash drive, how can I restore it?
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Windows boot missing in Windows 10 / Ubuntu 20.04 dual boot

I originally used Windows 10 on my laptop, and I installed Ubuntu MATE 20.04 last week. When I try to boot Windows 10 in grub it is not an option, I tried doing Boot-Repair and some simple googling ...
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Dualboot broken after Upgrading to Ubuntu 20.04

Yesterday I upgraded from Ubuntu 18.04 to Ubuntu 20.04 and since then my laptop is just booting to Ubuntu at startup, instead of grub asking for Ubuntu or Windows 10. I have tried to reinstall grub ...
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Unable to install Ubuntu MATE 20.04 on an HP Envy 17M-CG0013DX laptop

I've been trying to install Ubuntu for about 14 hours now from a live USB stick.It runs without a hiccup from the stick and when I start installation the only error message I'm getting is that some of ...
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Not getting option to Boot with USB in Boot Oprtions

I'm trying in dual boot Ubuntu 16.04 on my HP Pavilion G6 laptopn running Windows 10 Pro. In Boot options I'm not finding the option to Boot from USB in my Boot options. I've done the following: Was ...
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FATAL ERROR : unable to install GRUB in /dev/sda (dual boot installation of Ubuntu with W10, both OS in separate drives)

I am not a complete beginner to Linux based systems but this one baffles me - I tried a lot of ways from other forums since 3 days but none of them seem to work. I am installing Ubuntu 20.04 Budgie ...
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Unable to reinstall Ubuntu 20.04 following boot failure

After making some trivial changes to permissions groups (having granted my user access to input devices) I found myself unable to boot back into my system for some indeterminate reason. The log in ...
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boot options disappear after installing windows in UEFI mode?

I have ubuntu 19.10 in my system with the Legacy boot. I accidentally installed Windows 10 in UEFI mode and now boot options are missing. is there a way to fix I have bootable Ubuntu handy with me.
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How to stop automatic boot entry creation

I previously used a Lenovo PC on which I have Ubuntu and Parrot installed in it. I then switched PC to HP EliteBook. To preserve state, I just switched the hard drive. When I tried booting, it didn't ...
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Ubuntu 18.04 / OSX dual boot corrupted by Software Updater

System is iMac from 2016 with existing dual boot of OSX and Ubuntu 18.04. Today 2020-05-21 Ubuntu Software Updater installed new kernel and other software then requested reboot. Upon reboot system ...
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Laptop don't install the ubuntu from usb port(problem loading UEFI: db X.509)

I'm trying to do the dual boot on my laptop. I have a windows 10 version already, and I've been trying to install different versions of ubuntu, and the problem still persists. I disabled de secure ...
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Installation of 20.04 on late-2011 macbook pro - installer fails to recognize existing OS

My question is probably implicit in the title, but here's additional details: installation target is macbook pro is a late-2011 17" model the macbook has a 2TB SSD the 2TB SSD has a 750 GB APFS ...
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I can't boot to Kubuntu on my gamming Laptop

Laptop Dell Inspiron 7567 (GTX 1050ti) When I get the grub boot selection menu and choose Ubuntu the computer restart me back to the grub selection menu as nothing happened, without displaying any ...
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Computer boots into GNU GRUB 2.04. Need help booting Ubuntu installer from commandline

The computer I have is the Surface Book Gen 1. The computer has Pop!_OS currently installed. The main problem that I have is that the operating system has encryption which has become a slight ...
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Ubuntu 20.04 doesn't come back from hibernation, but restarts

When sudo systemctl hibernate is used, it seems to shut down the system, and when it is started again, the previous state is not there (e.g. no previously opened windows, it's like a fresh start). I ...
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No partition on installation type when installing Ubuntu 18.04 with multi-boot on windows 10

I used to use Multi-boot option with Windows 10 and Ubuntu 16.04 But I need to change my size of HDD for Ubuntu and I want to use 18.04 So, I did it as follows Delete GRUB multi-booting option ...
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Trying to fix my ubuntu installation and I am getting this EFI error

Anyone know what this error is about?
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Can I dual boot Windows and Ubuntu with Common (EFI & Home) partitions

Both Windows and Linux support exfat file format. I want combine EFI and the Home folder/partition to access files from both operating systems. Will this work as I expect?
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Mostly unable to boot when [ ***] A start job is running for… FOREVER!

A mostly clean install of Ubuntu 20.04 occasionally boots quickly and flawlessly, but almost always hangs during boot. Sometimes it will boot 1 out of 3 times, other times I reboot 10+ times, spending ...
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GRUB slow/irresponsive when in UEFI bios mode

I have a GTX 1060 GPU, a ultrawide (21:9) 2560x1080 monitor and a MSI B-450 A PRO motherboard (bios version V10.C - 2019/11/12). And i want to have my grub fullscreen (in my case 2560x1080p) ...
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Ubuntu 18.04 shuts down automatically after boot

I am new to Ubuntu and linux in general. I have recently dual booted Ubuntu 18.04 along with Windows 10. I have installed it through UEFI. Whenever I boot into Ubuntu by choosing it from grub, it ...
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I can't boot up my operating system [closed]

I was installing fedora 32 and I deleted my EFI storage. After that I can't boot my PC even I plug my bootable pen-drive but it doesn't work. It just shows a black screen, nothing else.
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Ubuntu on Acer Spin1

since I can't comment I have to create a new post :( I successfully followed Acer Aspire E15 will not dual boot Two remarks after Ubuntu 20 installation (which ended with a grub installation ...
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Installed Ubuntu along with Windows but neither boots now

I tried to install Ubuntu 18.04 along with windows 10 in my Dell Inspiron 7390. It gave me a grub installation error and later when I tried to install Ubuntu again, it did not give me any error and ...
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HoW to change i364 grub to x86_64 from kubuntu opened (not live)

i was on legacy which was fine i had kubuntu and windows and phoenix os (android) triple booting but due some reason i had to switch to UEFI i installed windows and then installed kubuntu but while ...
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How to generate a grub2 menuentry with update-grub for an encrypted zfs root filesystem?

I'm running Ubuntu 18.04 on ZFS 0.8.4 and am playing around with encryption. I'd like to have a menuentry in grub that lets me boot to the encrypted root. System Setup A checkmark indicates that ...
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Operating System that boots depends on boot mode

I just installed Ubuntu alongside Windows. When I try to run Ubuntu on Grub, it works fine. When I try to boot windows from Grub, it tries for a few seconds and then returns to grub. Grub Page IMG ...
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Why is EFI boot-loader fallback failing?

I am experimenting with EFI bootloaders and there's something I don't understand. That's the situation: I compiled by scratch grub2. Formatted a USB drive with an EFI partition and placed the ...
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1answer
132 views

No Legacy Boot: Recovery media only functions on Dell and Alienware systems error

I recently purchased Dell XPS 13 (2020) Developer Edition with Ubuntu 18.04 pre-installed. I would like to try elementary OS on the machine. I followed the instructions here and created bootable USB ...
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Recover windows uefi after ubuntu install

I had windows 10 and ubuntu 19 installed on two different disks correctly. Both used UEFI. My motherboard bias is set to UEFI only. I downgraded from ubuntu 19 to ubuntu 18 and after that my grub ...
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Ubuntu 18.04 LTS reinstallation failure

I'm new to Ubuntu and I my biggest crash so far. I've been using 18.04 LTS without a hassle until I decided to update to 20.04 LTS. After the upgrade, and a couple of days of use, I found this image: ...
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After installing Ubuntu, can't boot into Windows using the UEFI boot menu

I recently have installed Ubuntu previously 18.04 but also 20.04) on dual boot with Windows 10. When the installation was completed, I could boot in Windows 10 and Ubuntu using Grub but, when I tried ...
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Ubuntu 20.04 is not booting

I have upgraded from Ubuntu 19 to Ubuntu 20.04. While booting, I am getting a list of errors like using previous versions, unable to mount root fs on unknown block(0,0), Kernel panic and many other ...
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29 views

Installing VBox in Ubuntu 18.04 with secure booth enabled in dual boot machine

Sorry if this is obvious but I'm a beginner and don't want to mess it up! So I have a machine with dual boot Ubuntu 18.04/Windows 10 and secure boot enabled. The secure boot is not optional so ...
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How to reinstall Grub in the system EFI partition WITHOUT replacing the Windows bootloader

I would like to install Grub (which is missing) to the EFI partition, but I don't want to replace the Windows bootloader. This means that my computer will boot on Windows everytime, but the Grub ...
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How to create a boot entry (in the efi bios) of Ubuntu

So, I've installed Ubuntu, but I intentionnally set the mount point of the bootloader to the root partition, so that my main OS (Windows) isn't affected. But, I have no way to boot into Ubuntu. So I'...
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I've installed Ubuntu et Grub on the root partition, but don't know how to boot on Ubuntu

I have installed Ubuntu like that (next to Windows) : root partition swap partition home partition mount point on root partition I want to display the Windows boot menu at startup, but I don't know ...
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After updating grub2, my system will not find windows on another HD. Can someone help me figure out how to make the grub entry correctly?

I have looked at several forums, but I have had trouble figuring out the right steps to fix the issue. I updated grub and it will not see the os on my ssd. OS-prober does not return any values. I ...
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Unable to Load Windows 10 after Installing Ubuntu

After installing Ubuntu 20.04 alongside Windows 10, I am unable to boot Windows. In BIOS, I've set Boot to Legacy from UEFI. Then installed Ubuntu 20.04. I'm able to boot into Ubuntu but not Windows ...
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Cannot Load Ubuntu 20.04 alongside Windows 10

I have a Lenovo Helix 2nd gen tablet with Windows 10. The problem is that when I boot it goes straight to Windows 10. I have done the following: Disabled Fast startup & secure boost Loaded ...
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My laptop restarts when in sleep while on battery power [closed]

if i put my lenovo ideapad into sleep by closing the lid when it's on battery power, it restarts when i open it up after. my system is UEFI only. i'm on plasma for my desktop envronment. this only ...
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42 views

How to make space in /boot/efi without resizing the partition?

I upgraded to 20.04 yesterday. I just noticed that in Ubuntu Software there is an update for Dell Inc. System Firmware, but my system does not have enough space to run the update. Is there any way ...
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50 views

Not able to dual boot my hp laptop with windows 10 already installed

I have HP Envy-x360 15m-dr1012dx. I created an empty 100 gb partition for ubuntu. I am trying to install ubuntu 20.04. Whenever Ubuntu installation is complete the Grub menu won't appear laptop goes ...
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adapting grub to moved windows installation

I currently reinstalled my Windows to a different disk. I installed grub-customizer to correct the grub entry. As the previous entry worked I mainly changed the disk identifiers and ended up with the ...
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unable to get back into macOS from ubuntu

Shall I reinstall everything, I'm a bit desperate to get back to mac os, I had backed up everything already? Edit System Bootorder not found, initializing defaults Everytime I restart I see this ...
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I tried to uninstall ubuntu from dual-boot drive and install it on the new one. I failed

I followed instructions for uninstalling ubuntu from windows and repairing boot manager using windows USB Drive. Repairing the boot manager didn't work, so I followed this answer. It helped and now ...
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Ubuntu 20.04 install from live USB Failing

I'm trying to install Ubuntu 20.04 alongside windows 10 and when I get to the end of the installation, it fails. It complains of an unclean drive and refuses to do anything. When I check the boot ...
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1answer
92 views

20.04: Update on my dual-boot situation

I have a Dell Inspiron One 2020 AIO with Windows 10 1909 installed, to which Ubuntu 20.04 was added for dual boot. I have figured out why GRUB isn't loading after I boot into Windows. I inserted the ...
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61 views

No EFI system partition was found during reinstallation of Ubuntu

I'm trying to reinstall Ubuntu 20.04 i.e. keep personal files, but reinstall system files, and without breaking the windows boot which is on the same drive. When I go through the steps I get stuck on....
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unknown filesystem error after reinstalling linux

After reinstalling 18.04 over 19.10 alongside Win10, the boot fails with the following error: error: unknown filesystem. Entering rescue mode... grub rescue >` From what I understood from similar ...

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