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Questions tagged [grub-efi]

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

2
votes
1answer
98 views
+50

Custom Ubuntu image is broken after Grub update (when using UEFI)

So I've been working on creating a custom Ubuntu 16.04.5 image. I follow the instructions here to chroot into the file system that gets put onto the computers and do apt update && apt full-...
0
votes
2answers
44 views

Unsigned kernel and Secure Boot

I have just bought a Lenovo Ideapad 330 and installed 18.04LTS. Turns out, touchpad is not working. I found a solution for the touchpad here: Lenovo IdeaPad 330 touchpad not working I then downloaded ...
0
votes
0answers
42 views

How to show boot text instead of the splash or blank screen on Ubuntu/Kubuntu 18.04?

Editing kernel parameters and removing 'quiet' and 'splash' doesn't bring loading text - I continue seeing black screen with no text. Pressing ESC doesn't magically show anything either. The first ...
0
votes
1answer
30 views

After trying to make grub the default, boots into blank screen

after running the follwing command to set grub as the default using the following command, bcdedit /set "{bootmgr}" path\EFI\ubuntu\grubx64.efi I know just boot into a blank screen. How might I fix ...
2
votes
1answer
127 views

Ubuntu Desktop 18.10 UEFI grub not booting

Neither live CD nor USB image does boot in UEFI on my system. Black screen, that is all, no grub-efi does show up. So, not even coming close to the point to install or reinstall. With 18.04 UEFI ist ...
0
votes
0answers
89 views

Missing /etc/default/grub/ file. Need to edit boot order. Grub reinstall doesn't seem to regenerate it

I have a EFI dual boot Win10/Ubuntu 18.04 surface-linux machine. Clean install runs great. I have no problem navigating the grub menu, and I have verified linux is install in the efi partition. For ...
0
votes
0answers
24 views

Creating bootable disk.img, not detecting grub EUFI boot loader

Here is my script to generate a bootable Debian disk. #!/usr/bin/env bash set -e # Download the debs to be used to install debian. if [ ! -e "debs.tar.gz" ]; then debootstrap --verbose \ ...
0
votes
1answer
193 views

How do I get my Lenovo 100S to boot from USB?

I cannot get my Lenovo 100S ideapad to boot from my Ubuntu 18 LTS bootable USB. The laptop currently has Windows 10 32 bit on it. After disabling secure boot in the EFI BIOS so that I could change the ...
0
votes
0answers
13 views

Grub is selection option isn't available [duplicate]

I tried installing Ubuntu alongside windows but while installing I was getting grub efi amd64 signed failed error. I created another partition with mount point \boot\efi of 200mb then installation ...
0
votes
0answers
23 views

Win/Ubuntu/Neon: Ubuntu's Grub EFI replaced Neon's GRUB EFI

I had installed Ubuntu as second system after Windows and then installed as third another linux Neon KDE. During Neon installation it installed on /sda its grub efi which suits my needs, but after ...
1
vote
0answers
144 views

macOS Mojave boot option disappeared from rEFInd, grub error at boot

I’m seriously panicking right now. I installed Ubuntu 18.04.1 LTS in a second partition on my iMac (macOS Mojave) and after a couple hours of using it, I decided that I didn’t like it anymore. So I ...
0
votes
1answer
63 views

Can't boot up Windows 10 after I installed Ubuntu [duplicate]

I have a Windows 10 laptop (Lenovo Z570) and I decided to give Ubuntu a try and install it alongside Windows. So I shrank my D: partition using Windows disk management utility, downloaded the Ubuntu ...
0
votes
0answers
22 views

Laptop booting to GRUB shell

I recently installed Ubuntu on my laptop, dual booting with Windows, with GRUB as the boot manager. Earlier today, I booted into Windows and shrunk the Windows partition. After attempting to reboot ...
0
votes
1answer
30 views

dpkg: dependency problems prevent configuration of shim-signed

Getting the following errors after upgrading. The configuration of shim-signed didn't go through due to dependency problems. Errors were encountered while processing: grub-efi-amd64-signed ...
0
votes
0answers
132 views

Failed to open EFI\BOOT\mmx64.efi: Not found [duplicate]

I'm using Windows 10 and I want to dual boot with Ubuntu 18.10. I used Rufus to make Sandisk Cruiser Blade 16GB (USB flash drive) bootable. When I successfully booted into Ubuntu 18.10 for the first ...
0
votes
0answers
17 views

No Boot Option for Kubuntu(Dual Boot)

Just installed Kubuntu 18.04.1 in dual boot with windows 10.. after installation it asked for reboot... after reboot, it directly booted to win 10...it didn't show boot options for Kubuntu!
0
votes
0answers
39 views

Recent update error grub-efi-amd64-signed update

I just ran sudo apt update && sudo apt upgrade here is the screen shot- Please help. Thanks
0
votes
0answers
17 views

Build procedure for grubnetx64.efi

What is the build procedure for grubnetx64.efi file present here: Ubuntu Archive? What parameters have been used and what config file(if any) has embed into it?
2
votes
1answer
98 views

Cannot boot past UEFI when installing ubuntu on HP

On an HP EliteBook 755 g5 , Ubuntu install fails. Boot into Ubuntu 18.04.1 installation media (which was checksummed by etcher when created). Shows me the Grub boot menu Select Install Ubuntu or ...
0
votes
0answers
16 views

Understanding all these entries in GRUB [duplicate]

I have all these entries in GRUB and I'd like some help understanding what they are as well as how to safely remove them and free up any disk space they may be occupying.
0
votes
0answers
38 views

Modify parameters of grubnetx64.efi

I need to customize the grub.cfg path embed in prefix parameter of grubnetx64.efi file which I downloaded from here GRUBNETX64.EFI. I need this for my network boot environment(PXE) setup. I used this ...
0
votes
0answers
49 views

Initramfs error

I have a laptop with Ubuntu 18.04 dual booted along with windows. Every time I boot into Ubuntu after booting into windows, I get initramfs error and I have to manually run fsck command. This happens ...
1
vote
2answers
135 views

How do I get my Ubuntu install (in dual boot) to boot using UEFI?

I installed Xubuntu on my PC to set up a Windows VM with gpu pass-through for games. I checked to see if my PC is using uefi with /sys/firmware/efi. The folder is missing so I tried to use sudo apt ...
0
votes
0answers
23 views

How can I make 2 boot entries for Ubuntu in GRUB?

I have a MacBook pro 8,2 and if I boot in UEFI mode with the right kernel parameters only the Intel GPU is used. If I boot in EFI mode only the external GPU is used. How can I install Ubuntu to have ...
2
votes
0answers
65 views

How can I prevent grub updates from resetting my EFI bootorder

I'm using Clover as my first and default bootloader. If Ubuntu is selected there, then Grub is activated (AFAIK there is no way to skip this step, I don't really use Grub at all, so I might as well ...
0
votes
0answers
173 views

Problem with 'Grub Minimal BASH-Like editing is supported'. BootRepair doesn't work!

0 down vote favorite I have a dual boot Windows 10 / Ubuntu 16.04 on my computer. I was running out of space on my Ubuntu partition, so I decided to free some space on Windows and when I restarted, I ...
1
vote
1answer
252 views

update-grub command has no effect

After installing a Kubuntu on a second hard drive, it changed the boot order of my main hard drive GRUB and I can't change it back since. Any change to the grub configuration file (/etc/default/grub) ...
0
votes
0answers
60 views

How to make ubuntu show on boot menu options

I have installed ubuntu 18.04 in my pc which came pre-installed with windows 10. I am now in "try ubuntu without install" and the detail of my partitions is as below: ubuntu@ubuntu:~$ sudo parted -l ...
0
votes
0answers
306 views

Ubuntu not showing up after installation (Dual-boot)

Today I installed Ubuntu 18.04 LTS in my system. I used the following Youtube tutorial and it worked well.(Used .iso image and USB as bootable device). https://www.youtube.com/watch?v=qNeJvujdB-0 I ...
0
votes
1answer
52 views

Can't enter to BIOS after debian install only black screen [closed]

I have Acer Aspire laptop with windows 10. recently I installed Debian 9 in a different partition and everything went fine. The second time I tried to boot into bios I only have a black screen with a ...
0
votes
0answers
423 views

“efibootmgr: Could not set variable Boot0000: No such file or directory” and “efibootmgr: Could not prepare boot variable: No such file or directory”

grub-efi-amd64-signed installing for x86_64-efi platform occasionally (~1 out of 20 tests) fails to create the Boot0000 record with the following errors "efibootmgr: Could not set variable Boot0000: ...
2
votes
0answers
887 views

Ubuntu 18.04.1 LTS - Unable to boot into Windows from Grub menu

I have successfully installed Ubuntu 18.04.1 LTS. When I start the system I'm shown the Grub Menu. When I select Windows it throws a "Boot Configuration data for your PC is missing or contains errors" ...
0
votes
1answer
58 views

How to use nvidia graphics for display to better screen resolution

I finally was able of installing cuda9.2 (nvidia 396 64bit) using the run files. Had to add --no-opengl-files to avoid login loop issue. However the screen resolution is not good. I tried changing it ...
1
vote
1answer
1k views

Dual Boot: Ubuntu 18.04 and Windows 10 - Bitlocker Asking for a key

I installed Ubuntu 18.04 alongside Windows 10. Ubuntu has been working pretty good for the most part, Windows 10, on the other hand, is not too happy. I tried to go into Windows 10 from Grub, and the ...
0
votes
0answers
110 views

ubuntu18/win10 dual boot: Windows Boot Manager (dev/sda1) no longer shows on Grub

I had ubuntu18/win10 working perfectly (so all the win10 tweaking were done) but when I tried to add a third boot (ubuntu16) via grub-install from a so called easy swap hdd bay, I got nothing about a ...
0
votes
0answers
36 views

Grub failing to install showing sata link hard reseting

While using ubuntu16.04 my laptop got hanged.After restarting it was kept on hanging and in text mode It was showing error sata1 exception emask 0x10 sact 0x0 serr 0x40400000 action 0xe frozen ...
1
vote
2answers
749 views

The 'grub-efi-amd64-signed' package failed to install into / target/. Without the GRUB boot loader, the installed system will not boot

This question isn't a duplicate of Ubuntu 16.10 Dual Boot error - 'grub-efi-amd64-signed' package failed to install. The question is exactly the same because the error is the same but it has a ...
0
votes
0answers
246 views

Install Ubuntu 18, keep grub on second hard drive

I'm looking to install Ubuntu on a separate laptop drive to Windows 10. I don't want Grub to manage my windows boot, I want to use the BIOS (UEFI) to choose the drive, on Drive 1 standard windows boot ...
0
votes
1answer
253 views

18.04 dual boot showing grub2 manual

Did a fresh install of 18.04 alongside Windows 10 (UEFI). Now my system boots only into grub2 commandline. I am able to boot into both windows by executing > chainloader (hd0,gpt1)/efi/Microsoft/...
0
votes
0answers
302 views

menuentry in grub.cfg for Windows 10 installation over PXE Ubuntu Server on UEFI mode?

I want to include the unattended installation of windows 10 for client machines over PXE linux server on UEFI mode. I searched in other forums and what I get are either fixing the grub on local ...
0
votes
0answers
95 views

After installing Ubuntu after restart it shows no bootable device

Madam/sir, When i install my ubuntu if i dont create efi partition Ubuntu won't even install is says grub64 something and you will not be able to boot Ubuntu. Then i created the efi partition after ...
1
vote
0answers
100 views

Ubuntu 18.04 LTS Crashing on shutdown

I'm new to Ubuntu and after installing it on an laptop of mine I've been fault finding my way through a few errors. Apologies if these aren't articulated properly, if not please tell me where, I'm ...
0
votes
1answer
329 views

Loading Windows 10 by GRUB in Dual Boot properly

I installed Ubuntu 18.04 in UEFI mode. After that I started boot-repair and restored Windows Loader. Then I rebooted and observed Windows Loader and pressed enter to load Windows ... You think it is ...
0
votes
0answers
154 views

GRUB Problem in Dual booting

When I installed Kubuntu 18.04 alongside Windows7, I was directly logged onto Kubuntu without grub, but when I install boot-repair using the terminal and run it. At one place it showed to choose the ...
1
vote
0answers
15 views

Dual-boots directly into Ubuntu without GRUB screen showing and the screen keeps flickering

I installed Ubuntu 18.04 to dual boot with Windows10 on Asus A555L laptop day before yesterday and it worked fine for 2 days. However now when I boot my laptop, it directly goes to Ubuntu without ...
2
votes
0answers
404 views

grub-efi-amd64-signed package failed to install into /target/ using ISO and UEFI mode

I am installing Ubuntu-18.04 using PXE ISO install in UEFI mode. The installation is failing with the below message: I looked into this thread grub-efi-amd64-signed failed installation but they are ...
0
votes
0answers
119 views

Can't install Grub to Windows HardDrive, Possibly corrupted BCD

I tried to install Ubuntu. I have a separate hard-drive where I installed it. When I tried to install Grub to the other Windows Drive, it fails to install to it. I get an error fail to install. I can ...
0
votes
0answers
12 views

how to add windows to boot alongside with ubuntu on efi system

windows is installed in partition /dev/sd1, and ubuntu on partition /dev/sd6, the efi partition is /dev/sd5, after restarting the computer it boots ubuntu automatically, I've tried to use the boot-...
1
vote
0answers
143 views

Surface Pro 3 - unable to select OS to boot. Touchscreen not working in grub. No keyboard

Like the title says I'm not able to select what OS to boot from when I don't have my keyboard connected. The volume keys do not work as a selection device.
1
vote
0answers
2k views

Fix Minimal BASH like line editing is supported GRUB Error In Linux

Followed this tutorial but got no success- https://itsfoss.com/fix-minimal-bash-line-editing-supported-grub-error-linux/ Here is a link to pastebin - http://paste.ubuntu.com/p/H6CJ5CPPBH/ I've dual ...