Questions tagged [grub-efi]

Questions about using grub on EFI/UEFI systems relating to configuring, installing or removing grub from EFI/UEFI partitions.

Filter by
Sorted by
Tagged with
0
votes
0answers
30 views

Grub crashes on Apt upgrade (grub-install: error: cannot find EFI directory)

I have multiple servers with Ubuntu 18.04.5 LTS. After running apt-get upgrade I received this error on each of my servers. Setting up grub-efi-amd64 (2.04-1ubuntu44) ... Creating config file /etc/...
0
votes
0answers
12 views

Grub startup freezes

I'm a newbie to ubuntu so I'm not at all sure how to fix this problem. Google hasn't helped, as none of the solutions other people gave worked for me. When I boot up my laptop, an HP ENVY x360, I get ...
0
votes
0answers
30 views

How do I separate the boot partition on a filesystem after installation?

I have a dual-boot system with Windows 10 and ubuntu 20.04. Earlier, I gave ubuntu 80 gb and 12 gb swap (for hibernation) while installing. Now I managed to free another 200 gb from my 1TB HDD and I ...
1
vote
1answer
53 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 ...
3
votes
0answers
27 views

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 ...
8
votes
1answer
494 views

Ubuntu 20.04 Upgrade failure concerning grub-efi-amd64-signed

I got this error when running the upgrade on 2021-05-02 as proposed by the system: grub-efi-amd64-signed: Depends: grub2-common (>= 2.02~beta2-36ubuntu3.31) but 2.04-1ubuntu26.11 is to be ...
0
votes
0answers
50 views

Errors were encountered while processing: libpam-systemd:amd64 xserver-xorg-legacy grub-pc grub-gfxpayload-lists - Ubuntu 20.04

I keep encountering these errors and I've pretty much tried every solution I've come across for the individual problems but nothing seems to work. Any help would be very much appreciated. This is what ...
0
votes
2answers
152 views

Boot error on MacBookPro ubuntu 21.04

I've zeroed my MacBookPro 13" (late-2012) and I've installed Ubuntu 21.04 (single OS on the machine). The installation went well, but when rebooting, I keep getting stuck on the grub prompt. I've ...
0
votes
0answers
75 views

Replaced my Windows hard drive, and now the Grub Menu is gone [duplicate]

So I recently had to get my windows hard drive replaced with a bigger drive, and I have ubuntu 20.10 loaded on a separate drive, but now I can't access the Grub menu even through BIOS. It only gives ...
1
vote
0answers
19 views

How to fix problem with grub during installation Ubuntu 20.04?

On my laptop two disks SSD , on one of them is installed Windows , I'm trying to install Ubuntu on the second . with a bootable flash drive. I manually partition the disk into three parts from the ...
1
vote
0answers
39 views

computer stopped booting, ran boot-repair, no grub menu, Windows 10 option gone

I was trying to upgrade the video card on my dual boot workstation and it stopped booting -- no grub menu, nothing. Windows was the original OS, Ubuntu came after. I put an Ubuntu 20.04 live CD in it ...
0
votes
0answers
22 views

Problem (error) with Grub

Have a good day. I was trying to install some drivers, but the following message appears: error when processing the package grub-efi-amd64-signed (--configure): installed grub-efi-amd64-signed ...
2
votes
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 ...
0
votes
1answer
59 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 ...
0
votes
0answers
19 views

GRUB menu not showing up properly after windows clean install

Okay so my laptop came preinstalled with windows 10, on which I installed ubuntu as well to dual boot, and everything worked fine. However, I recently also installed Fedora on another partition, and ...
0
votes
0answers
39 views

I tried to dual boot Windows 10 + ubuntu mate and i think i messed up the grub loader

So basically I tried to dual boot Windows 10 and Ubuntu mate and instead of the grub loader showing the options to choose between what OS to load it automatically loads Ubuntu every time. What can I ...
0
votes
0answers
18 views

Configuring the GRUB cryptodisk unlock screen

I run GRUB with LUKS. So I have GRUB_ENABLE_CRYPTODISK=y and my /etc/crypttab all set-up. When I start up it shows me a message like "Enter password to unlock [crypto disk name]:", at which ...
0
votes
1answer
66 views

How can I move a Ubuntu installation to a new drive if it has other partitions?

I would like to move my hard drive Ubuntu installation to a new SSD. The source disk has 5 partitions, sdc1 - EFI sdc2 - NTFS sdc3 - Ubuntu root sdc4 - Swap sdc5 - Ubuntu home I would like to move ...
0
votes
0answers
32 views

GRUB acting strange when booting with multiple hard drives

I have a dual boot (Windows 10 and Ubuntu 20.04 LTS) on my laptop. I recently installed a new SSD in my laptop. I was expecting to need to replace the old one, so I cloned the old drive onto the new ...
0
votes
0answers
27 views

How to access Advanced Options for Ubuntu in rEFInd?

I'm trying to install Multipath TCP on my Ubuntu 20.04 and it requires me to do some steps in the Advanced Options. Steps in Advanced Options rEFInd shows only shows me Ubuntu, Windows, ?.
0
votes
0answers
23 views

Is efibootmgr functional only when ubuntu boot from efi partition?

I can't figure out how come I have EFI available but sometimes I do not. I must have installed/remove something or is it just from grub-amd64.efi installation? root@zika:/home/brad# efibootmgr -vd ...
0
votes
1answer
72 views

Unable to login to Ubuntu in ASUS ROG Zephyrus

I installed Ubuntu 18.04 alongside windows in my ASUS Zephyrus ROG. The Grub is not showing up. I tried going to my BIOS and manually selected the Linux to boot up. It's still not working. I have ...
0
votes
2answers
36 views

Ubuntu fails to boot after Partition was moved | Superblock not found by GRUB

My current situation; I have tried to shrink down C: and add the resulting space to my Ubuntu partition. I've done this using Windows (which was probably the biggest mistake) and in the process I ...
0
votes
1answer
37 views

adding memtest86 to Grub fails

I want to add memtest86 to my Grub menu on an EFI system. I follow these instructions. However when choosing the new grub menu entry, I get this error: error: disk `hd0,gpt1' not found On my system, ...
0
votes
1answer
106 views

stuck on boot - macbook pro 2011 - faulty AMD gpu

I followed this post: Ubuntu 20.04 Failed to Set MokListRT: Invalid Parameter I managed to replace the shimx64. Efi with grubx64. Efi, through LIVE Ubuntu. Now only appears a " _ " on the ...
1
vote
0answers
35 views

Windows 10 EFI boot files get deleted every few days in dual boot with Ubuntu 20.04

I have Windows 10 and Ubuntu 20.04 installed in a dual-boot GPT/UEFI setup, I use grub2 to boot into Windows and Ubuntu. I tried boot-repair on Ubuntu, it gives the error: LegacyWindows detected. ...
0
votes
1answer
48 views

Dual Boot Ubuntu 18.04 and 20.04 Stuck at Grub at Boot

I have a problem with double booting Ubuntu 18.04 and 20.04 I have 18.04 installed on my SSD in to the laptop. Recently I found my old HDD and thought give it a try and installed Ubuntu 20.04 on it ...
0
votes
1answer
81 views

Kernel boot command line altered in uefi mode

I want to prepare custom installation ISO for Ubuntu 20.04 server that will use autoinstall feature to install system automatically. To achieve that I have to add this to the boot command: autoinstall ...
0
votes
1answer
35 views

Filesystem root and efi showns as external HDD in file explorer

I've recently noticed that in the file bar/explorer filesystem root and efi shown as external HDD. It is kind of weird I don't know it does affect the system processes or not. Furthermore, usb drives ...
1
vote
1answer
84 views

How to edit /etc/default/grub on live-usb?

I have a problem (described here and here) installing Ubuntu on my laptop from USB stick, and some people say that I need to change GRUB_CMDLINE_LINUX_DEFAULT value in /etc/default/grub to quiet iommu=...
0
votes
0answers
21 views

Grub terminal showing instead of normal start to desktop

I have setup Ubuntu from erasing Windows 10, I am not running dual-boot. Whenever I turn on my PC, a grub GNU GRUB version 2.04 terminal appears. I update and install grub every time but at the end ...
0
votes
0answers
52 views

How to build shim from source and enroll keys

How to build shim from source and enroll keys I'm trying to build shim from source and enroll my own keys to the MOK list but it's not working out. Whenever I add the keys everything seems to go well ...
0
votes
0answers
12 views

Lost desk top interface 18.04

Installed 20.04 on sdb2 partition6. Worked. Went back to original 18.04 on sdb1 pd0 fine. Next day 18.04 boots into tty1. How can I get 18.04 desktop back?
0
votes
0answers
53 views

Change grub controller in two Linux dual-boot

I had windows-10 dual booted with Ubuntu 20.04 earlier (Ubuntu was installed later). Now I uninstalled windows and installed Manjaro 20.2.1 instead (alongside ubuntu). I am in UEFI mode. My partition ...
0
votes
0answers
62 views

Where to load grub after dual boot of Ubuntu Studio 20.04 on Windows 10 with NVMe, RST, RAID -> ACHI?

Laptop: Dell G5 5590 Windows 10, Version 10.0.18363 Build 18363 Ubuntu Studio 20.04.1 Drive: M2.2280 NVMe 2TB I have tried several approaches to dual booting, with the one where I was finally able to ...
0
votes
1answer
37 views

GRUB is not seen during dual boot. How can i get it?

My laptop is Lenovo G50-70. I had installed ubuntu and it was booting fine from GRUB but windows had a BCD error. After fixing BCD error it straightaway boots into windows 10 without showing GRUB and ...
0
votes
0answers
57 views

GRUB Command Line appears after reboot

On my computer I have 2 SSDs, one with Windows 10 (up-to-date), the other with Ubuntu (20.04.1) setup in dual boot. I have to switch between OS a couple of times a day, and every time I want to go ...
0
votes
0answers
33 views

Had to wipe the boot partition because of Windows. It was also the partition that my Linux installation was using. Cant boot anymore

I have 2 SSDs: One of the SSDs has the windows installation with other windows partitions one of which is the boot partition. this boot partition is what grub and windows both were using. The other ...
1
vote
0answers
40 views

Accidentally I installed efi partition to second HDD

I have SSD and HDD. I've Windows OS installed in HDD. After when I bought SSD, I installed Windows OS to my SSD too. But didn't remove old Windows OS from HDD. Later I installed Ubuntu 20.04 to my SSD ...
1
vote
0answers
343 views

Script `/boot/grub/grub.cfg.new' contains no commands and will do nothing

I can't able to update grub settings. If I gave sudo update-grub it gives some error like this Sourcing file `/etc/default/grub' Sourcing file `/etc/default/grub.d/init-select.cfg' Generating grub ...
0
votes
1answer
58 views

Purple Lines at boot (possibly initramfs decoder error)

What is happening is that when I try to boot normally, I get stuck in a black screen with some purple lines. Before I did anything it was showing a Initramfs decoding error and after looking it up, I ...
1
vote
1answer
201 views

Ubuntu fail on boot after Windows 10 update (20H2)

I'm using a dual-boot os (Windows 10 and Ubuntu), after I update the Windows to the latest update 20H2 the GRUB isn't showing on reboot else display these errors Malformed security header Failed to ...
0
votes
2answers
113 views

Big mess with my bootmanagers

I have a pretty complicated configuration. I'm trying to be synthetic : I have 4 disks (1 ssd, 2 nvme and 1 HDD) and 4 OSs (3 Win10 and 1 ubuntu) : Nvme 1 (Win10-1 + Ubuntu 20.04) /dev/nvme0n1 Nvme 2 ...
0
votes
0answers
72 views

Stop GRUB from changing the EFI boot order

I have a dual-boot installation with Windows 10 (Bitlocker protected) and Ubuntu 20.04. By default the UEFI BIOS is configured to bot up Windows. And if I want to boot Ubuntu I use the UEFI boot ...
1
vote
2answers
619 views

Lubuntu 20.10 - Failed to register the EFI boot entry: Operation not permitted

I'm trying to install Lubuntu 20.10 alongside Windows 7 Ultimate. Created a bootable USB with rufus and loaded Lubuntu without issues. Then started the installation and opted for Manual Partition ...
0
votes
2answers
63 views

How to change the bootloader during system installation?

My laptop doesn't want to work with GRUB, but it works fine with rEFInd and manjaro. But now I want to install Ubuntu and I don't know how to make it immediately install rEFInd. Maybe someone knows ...
2
votes
1answer
2k views

grub-install error. failed to register the EFI boot entry: Operation not permitted. mount: /var/lib/grub/esp: mount point does not exist

grub-install fails to reinstall grub with: Installing for x86_64-efi platform. grub-install: warning: Internal error. grub-install: error: failed to register the EFI boot entry: Operation not ...
0
votes
0answers
46 views

How can I boot into recovery mode from an older Macbook Air?

Late 2010 Macbook Air 3-2 / Ubuntu 20.04 / No OS X. I chose to wipe disk when installing Ubuntu. I've uninstalled shim. I have rEFInd installed. I've tried holding down Shift or Escape when powering ...
0
votes
1answer
290 views

efibootmgr - Moving Win10 from one drive to another, w/ EFI on different drive

I'm running Ubuntu 20.04 on one drive (m.2) and Win10 on another (3.5" SSD). I recently added another m.2 drive to my system and cloned my Win10 system onto it. So here's what my drives look ...
4
votes
1answer
2k views

grub-install fails on ubuntu 20.04.1

Today I did update my system which was originally installed following Ubuntu 20.04 Root on ZFS. While updating, I see that there is an update for grub, which failed to run the included grub-install. ...

1
2 3 4 5
11