Questions tagged [grub-efi]
Questions about using grub on EFI/UEFI systems relating to configuring, installing or removing grub from EFI/UEFI partitions.
646
questions
1
vote
0
answers
844
views
GRUB failed to install
I believe this problem originated when I tried to run an apt upgrade. When I ran the upgrade, I got a bright pink screen that says that:
GRUB failed to install to the following devices:
/dev/nvme0n1p1
...
1
vote
0
answers
47
views
What is the correct way to partition a drive for dualbooting Ubuntu and Windows on a 64bit BIOS-based machine?
I have a 64bit BIOS-based laptop, it does not have any form of EFI/UEFI or secure boot. I'm trying to dualboot Ubuntu 20.04 LTS 64bit and Windows 7 64bit. I tried installing Windows normally then ...
0
votes
0
answers
582
views
Offline grub-efi installation (Offline BIOS Legacy to UEFI conversion)
I need to convert from BIOS Legacy to UEFI on a Linux Ubuntu computer without reinstalling Linux itself and without the Internet.
I have managed to do it with the Internet, but it seems to be very ...
0
votes
0
answers
32
views
Grub keeps installing boot manager on my SSD
I have an SSD and a harddrive on my laptop. I have installed windows 10 on my SSD and i just installed Ubuntu on my HDD. While installing, i chose to install boot manager on my HDD but it still keeps ...
0
votes
1
answer
3k
views
How do I automate network installation of many Ubuntu 18.04 systems with EFI and PXE?
In the past I've managed the installation of dozens of Ubuntu 18.04 servers with PXE boot and pxelinux. This worked well, as each system had its own file named after the mac address of the interface ...
0
votes
2
answers
2k
views
I cant boot into Ubuntu
I recently dual-booted Ubuntu and i can't boot into it.
My first time doing this there were no problems. But now there are and i dont know how to fix it. Here are the errors that appear after trying ...
1
vote
0
answers
723
views
Remove ubuntu and grub completely on UEFI, dual boot with windows 10 on legacy
I have windows 10 installed on legacy boot. Recently I installed ubuntu and accidentally installed it on UEFI, but now I can't enter my windows 10 anymore.
I tried uninstalling my ubuntu and delete ...
0
votes
0
answers
175
views
Failed to install Ubuntu on external SSD in dual boot with Windows 10 over an AMD Ryzen processor
I have an Asus AMD Ryzen7 equipped with Windows10 installed on /dev/nvme0n1 .
I would like to install Ubuntu 20.04 on an external SSD /dev/sda .
Using an Ubuntu Live USB /dev/sdb, I tried several ...
0
votes
1
answer
76
views
How to replace hard drive and convert dual-boot system to Ubuntu only?
This pc started as my first Ubuntu daily driver when I transitioned from Windows, it's a dual-boot UEFI 64-bit system with Windows 8 (original system) and Ubuntu 18.04.5. Secure Boot is disabled.
...
3
votes
2
answers
6k
views
error: symbol 'grub_file_filters' not found [upgrade Ubuntu18.04 to 20.04]
I updated the system from 18.04 to 20.04 via the terminal. When the computer restarts, the black screen appears with the above written mention.
What should I do to fix the problem (without obviously ...
0
votes
1
answer
4k
views
GNU GRUB boot loader - Failed to load image
On 3 august I installed DiskGenius (and Ext2Fsd; I did not use it) to access to linux partition from windows and everything worked well.
Yesterday (5 august) I used Ubuntu 20.04 and after I turned off ...
0
votes
0
answers
977
views
How to clean and reset Ubuntu partitions and GRUB menu
I'm quite new to Linux and I think I accidentally removed files related to my boot configurations while clearing redundant disk on my secondary SSD. After that my computer was unable to detect any ...
4
votes
1
answer
765
views
How do I install the new BootHole update?
I am new to Ubuntu and have 18.04. How do I install the new update to fix the BootHole vulnerability on my 18.04? What commands, process, etc., should I use?
4
votes
1
answer
12k
views
No efi system partition was found when trying to install ubuntu next to windows 10
I have windows 10 on disk 0 (Only one partition on the SSD Drive), and I have 2 partitions on disk 1, I'm trying to install ubuntu 20.04 on the first partition of disk 1, I was ready to format and ...
5
votes
2
answers
379
views
Cannot install Ubuntu 20 on laptop with windows 10 and NVIDIA Geforce RTX 2080
I have laptop with NVidia Geforce RTX 2080 and Windows 10 installed, and I would like to install second OS, latest Ubuntu 20, but I am not able.
Black Screen after launching Grub option "Ubuntu&...
0
votes
1
answer
1k
views
Delete Ubuntu with separate efi
I first had Windows 10 installed with EFI partition, I later installed Ubuntu and created a separate EFI partition for its bootloader. Now I want to delete Ubuntu. Can I directly delete the EFI ...
0
votes
0
answers
899
views
Ubuntu 20.04 grub-install /dev/sda installation failed in hp elitebook
I have tried numerous method but all of them failed every time and I land on grub console. Why Ubuntu has this issue as I never face this issue with other distros
0
votes
1
answer
61
views
Ubuntu 20.04 server 'Live?' Can Not detect muti-partitions UEFI and CSM backward compatibility
Unlike Ubuntu 16.04, Ubuntu 20.04 'Live??' does not have the same capability to detect 12 partitions under the UEFI and CSM - or backward compatibility firmware configuration. Is a real "Ubuntu ...
1
vote
1
answer
886
views
When multiple boot, should you use have FAT32 EFI drive for each OS? [duplicate]
I am booting Windows, Ubuntu, and Manjaro and I have a problem in bootloader. Is it ideal to have separate EPS partition for each OS like one EFS in Windows, one in Ubuntu, and one in Manjaro?
Or I ...
3
votes
3
answers
13k
views
Cannot install Ubuntu 20.04 on Mac mini 2020
I have a brand new 2020 Mac mini (Intel i3 quad core chip).
My install (dedicated Ubuntu NO dual boot) fails with the famous;
Executing 'grub-install /dev/nvme0n1' failed.
This is a fatal error.
I ...
1
vote
0
answers
239
views
Grub installed in linux efi partition can't load Ubuntu generic linux
I have Arch linux and windows on a dual boot efi. Currently windows uefi partition is on dev/sda2, arch efi is in dev/sda5 with grub bootloader installed on it. Arch root is on dev/sdb1 with swap on ...
4
votes
1
answer
3k
views
How do I get grub-efi-amd64-signed to not automatically overwrite NVRAM on update
I am using refind as my main boot loader. Since it can load kernel images directly, I probably don't even need GRUB much, but keeping it around just in case feels safer just in case. What's annoying ...
0
votes
1
answer
97
views
Dual-boot Ubuntu sometimes boots to a black screen
I have Ubuntu 20.04 installed alongside Windows 10. Sometimes when I restart the laptop and select Ubuntu from Grub menu, I reach a black screen and then nothing happens. When I long press the power ...
0
votes
1
answer
61
views
I have to unninstall GRUB [duplicate]
So I had removed ubuntu from my laptop by formatting the the disk which it was on, but the GRUB isn't gone yet and I can't find the EFI option with cmd as I have formatted disk, help me to remove the ...
0
votes
1
answer
425
views
Issues implementing EFI Grub in USB install of Lubuntu to allow usage with both Legacy and UEFI boot configurations
https://askubuntu.com/a/1253617/1098871 is the link to the process I followed.
At step 42 I get an error,
grub-install: error: /boot/efi doesn't look like an EFI partition.
Screenshot
Help me out ...
3
votes
3
answers
6k
views
Why can't (and how can) I install both grub-pc and grub-efi packages?
I'd like to install both the grub-pc and grub-efi packages so that my server can boot using either method; however, when I try to install one, apt only proceeds if I remove the other.
According to apt ...
2
votes
1
answer
897
views
How to reinstall MBR and UEFI Grub in Ubiquity installation?
Edit: I am sorry if I used the term bootloader, MBR, GRUB, GRUB UEFI interchangeably because I am not sure what's their difference. The point is I how to repair the part/partition/bootloader/grub/mbr ...
4
votes
2
answers
4k
views
Unable to install bootloader at the specified location while installing Ubuntu as a Dual boot OS
Despite reading several askubuntu blogs related to this issue, I have been struggling for last 24 hours to solve this.
My current OS is windows 10 which has an EFI partition. I have a bootable USB ...
16
votes
2
answers
15k
views
Move bootloader or remove efi partition in second drive
I'm new here so I apologize in advance if my question is not formally correct.
I have a dual boot system, on two different disks.
Windows was pre-installed on the first drive (500 Gb), then I ...
1
vote
2
answers
583
views
Ubuntu is not loaded after full disk encryption
I am beginner with Linux.
I followed that guide to encrypt disk and install Ubuntu 19.10 from USB https://help.ubuntu.com/community/Full_Disk_Encryption_Howto_2019
I didn't have errors following those ...
0
votes
1
answer
6k
views
How to reinstall Grub on Ubuntu 20.04 installed on external hard disk
I had Ubuntu 18.04 and Windows 10 installed on UEFI mode on my pc. I tried to install ubuntu 20.04 to my separate external hard disk connecting it to my pc which already had win10 and Ubuntu 18.04.
...
0
votes
1
answer
2k
views
My dual-boot PC boots directly into Windows since I upgraded my Ubuntu to 20.04 LTS
I've been using Ubuntu 19.10 and Windows 10 on my device with dualboot. Recently, I upgraded Ubuntu to 20.04 LTS, and since then, my PC skips GRUB and boots directly to Windows 10.
To solve this, I ...
2
votes
0
answers
314
views
Windows won't boot after Installing Ubuntu 20.04
Noob here. Installed Ubuntu 20.04 to dual boot on my laptop. However, now in grub the Windows Boot Manager doesn't load Windows.
Looking at Gparted, I'm booting from /dev/nvme0n1p1, but the OS is on /...
0
votes
0
answers
1k
views
Lost the ability to boot into Windows after Kubuntu 20.04 install
I've been asked to fix a Windows 10 PC with a weird setup. It could not connect to any network except the one at the school where my friend works, and there it could not connect via WiFi, only through ...
1
vote
0
answers
278
views
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 ...
0
votes
1
answer
3k
views
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 ...
0
votes
1
answer
41
views
Trying to fix my ubuntu installation and I am getting this EFI error
Anyone know what this error is about?
0
votes
2
answers
1k
views
Unable to boot Windows 10 after installing Ubuntu 20.04
I initially had Windows 10 in my laptop and decided to dual boot it with Ubuntu. I successfully installed Ubuntu 20.04, but now my laptop is automatically loading Ubuntu only. No GRUB menu is shown ...
0
votes
2
answers
3k
views
Grub menu not showing after ubuntu installation [closed]
Guys my laptop had only windows 8 version. Recently I installed Ubuntu 18.10 version in it. But the problem is it is now booting directly to windows.
As seen in forms I tried turning off secure boot ...
1
vote
0
answers
162
views
2008 iMac, Ubuntu Stuck on Purple Screen
I've been struggling to get Ubuntu 18.04 to work on my 2008 iMac.
Grub loads. But system gets stuck on blank purple screen.
I have "nomodeset" enabled.
Ubuntu LiveCD works on same iMac. So the iMac ...
1
vote
1
answer
246
views
Neither able to boot ubuntu 20.04, nor able to reinstall from live usb
I am new to linux. I just baught Dell Vostro 15 3580 and I had windows 10 installed on it. I installed ubuntu 20.04 from usb. But now whenever I start my laptop , in first attempt the Dell logo doesn'...
0
votes
0
answers
2k
views
Mac - Holding Option at Start Up and Choosing EFI Boot - "System BootOrder not found. Initializing defaults."
I set up my old 2012 Macbook Pro to have dual boot with MacOS and Ubuntu 20.04. I installed Grub Customizer so that when I turn the laptop on, it always defaults to boot Ubuntu. However, when I hold ...
1
vote
1
answer
1k
views
Ubuntu EFI booting fails after Mac OS X booting
I have installed Ubuntu on a Macbook pro (early 2011), from Ubuntu live on USB.
After the install, Ubuntu boots and reboots automatically after restart.
Mac OS El Capitan also boots after pressing ...
0
votes
1
answer
514
views
Error with grub and linux-image that can't fix
grub-pc error
I'm a fairly new linux user that installed a dual boot Ubuntu 18.04.4 LTS (Bionic Beaver)/windows 10 Home.
After messing around a bit with the configuration of the grub to change the ...
2
votes
0
answers
99
views
Fresh Ubuntu 20.04 installation won't boot after GRUB and stuck in boot loop [duplicate]
I made USB bootable using Universal USB Installer on another windows 10 PC.
Installed using the "Ubuntu (Safe Graphics)" option because the "Ubuntu" option freezes the wizard before installation.
...
0
votes
1
answer
10k
views
Failed to set MokListRT: out of Resources : import_mok_state()
I'm facing a huge problem with MOK manager. After a install Ubuntu 19.10, with third party drivers install enabled, I rebooted the system. On boot, MOK manager was launched normally, but accidentally ...
1
vote
1
answer
6k
views
Ubuntu 20.04 boot freezes after shutting down the PC, but not after restarting from Windows 10
I installed Ubuntu 20.04 alongside Windows 10 UEFI. To install it I used the option "Install alongside Windows bootloader". When I boot Ubuntu from the grub after shut down the PC, it freezes, but if ...
0
votes
0
answers
344
views
Removing Grub from Windows boot drive, but still be able to boot from usb
I installed Linux on a USB drive. I made sure to keep the efi partition in the USB drive itself and set the bootloader to install in the USB drive as well. However, every time I start my Computer grub ...
1
vote
0
answers
40
views
Change GRUB active - Cambiar GRUB activo
On a UEFI-GPT system I have installed Windows 10, KDE Neon 5.18, Ubuntu 20.04 and Kubuntu 20.04. Of course, the Grub that predominates is that of the latest installed Linux distribution. My question ...
0
votes
1
answer
222
views
Booting problem in Ubuntu.18.04lts
Yesterday ,i normally shutdown my laptop. But,when I switch on my laptop ,there was a problem on booting. It is showing that UNEXPECTED INCONSISTENCY , /dev/sda3 run fsck manually.what will be the ...