Questions tagged [grub]

This tag is ambiguous: use grub2 or grub-legacy as appropriate.

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Unable to shutdown or reboot Zorin OS

Since a few weeks, I am unable to shutdown or reboot Zorin OS. When I manually reboot, I end up with a black screen but the laptop is still running. When I manually shutdown, I end up with the ASUS ...
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Is REISUB/REISUO to switch off/reboot safe?

I can't happen to find a fix to shutdown or reboot my Zorin OS 16.1. So far I have been using REISUB or REISUO as a quick fix. I was wondering if it can cause harm to my laptop in the longrun if I ...
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Write a bootable image of system into an internal disk, without removing a data partition

I have an internal HDD like partitioned like this: [---- 100 GB unused ----|----------- 800 GB data ------------] 100 GB of unused or "to be deleted" old partitions /dev/sdb1, /dev/sdb2, /...
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How to remove 2 or more linux distros on a windows dual boot to install ubuntu again

So I have two linux distros along with windows 11. Windows 10 was present first and then ELEMENTARY OS and KALI LINUX were installed. About a year later, since my pc was low on RAM and not doing good ...
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Fedora missing in Grub after installation

I have installed Fedora 36 for the first time (UEFI), but Grub only shows the option to boot Windows boot manager, and Fedora doesn't appear. I haven't tried to change anything yet because I don't ...
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grub not working with lvm

I have a dualbooted system with windows + ubuntu on LVM: /dev/sda1 -> efi /dev/sda2-4 -> windows /dev/sda5 -> LVM /dev/vgsys/root -> / /dev/vgsys/home -> /home The drive it was on ...
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boot from usb stick without the grub prompt

For some reason today when I went to boot from the usb stick the grub prompt opened up. The process is the following: I turn on the pc, open the boot menu, select to boot from the usb stick and then ...
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Accidentally formatted the EFi partition with windows when installing arch [duplicate]

I was trying to dual boot arch linux with windows 11. But I accidentally formatted the windows EFI partition and used it as the EFI partition for arch. Right now I can boot into arch linux but not ...
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Stuck in GNU GRUB v2.04 loader

I just started my computer and this is what I see : GNU GRUB version 2.02~beta2-9ubuntu1 Minimal BASH-like line editing is supported. For the first word, TAB lists possible command completions. ...
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I messed up systemd-boot by being foolish. No longer able to boot into PopOS or windows 10

I did the classic thing of being in a rush and not thinking, copying the following commands blindly from this other post. sudo apt install grub-efi-amd64 sudo bootctl remove sudo grub-install --...
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How to fix grub not being able to boot Windows Boot Manager on dual boot system

Dual booting Windows 10 and debian. Win10 is on C: and debian is on a partition on E:. BIOS boot priority has debian over Windows Boot Manager, so I am able to load into grub. After first getting ...
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/sbin/init does not exist after removing duplicates with rmlint

So I executed rmlint to remove duplicates on my archlinux, and executed the script it generated. Then I reboot and got the message bailing out you are on your own. Good luck. And /sbin/init does ...
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GRUB hangs / crashes with HDMI display

I just finished building my Klipper controlled 3d printer. As a host PC I'm using an Asrock J4105m motherboard running Debian 11. To interact with the control software I bought this touch display: ...
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Boot Windows after installing Linux on external drive

I installed Linux (ParrotOS) on an external hard drive by using a separate bootable flash drive and I think the bootloader (grub) also got installed to that new drive. I can boot both Linux and ...
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New build will not boot without display attached

The problem: I recently built a "new" linux server. I purchased a new case, mobo, and PSU, and re-used my RAM and 2700x CPU from my gaming PC that I had upgraded. It will not boot into my ...
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Change grup configuration of persistent USB install

In a persistent USB install of Linux Mint 20.3, I want to change grub.cfg to include a timeout (GRUB_TIMEOUT=10). If I edit /etc/default/grub and run sudo update-grub, I get the error: failed to get ...
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Why does GRUB stall on a system that has only BIOS support with no UEFI?

I have several old laptops that only support BIOS or Legacy mode. They do not have support for EFI/UEFI. The laptops all have a 64-bit CPU. I have attempted to create a bootable USB with dd, cat as ...
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Grub rescue cannot boot from flashdrive

yesterday I accidentaly delete some linux partition, before I realize that i deleted some grub config files too... I run linux, now it shows Welcome to grub rescue. When i ls it shows (hd0) (hd0,gpt1)...
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How to change the default kernel in GRUB

I tried to change my grub file to select kernel 5.14.21, which is the 2nd one in the list: GRUB_DEFAULT=1 GRUB_TIMEOUT_STYLE=hidden GRUB_TIMEOUT=0 GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null ||...
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Making legacy BIOS iso

I am trying to create ISO image for hobby operating system I develop. On my former amd64 machine that was working fine (running Ubuntu 21.04 as development platform. Quite straightforward way to ...
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Change Grub default location for its variables

I installed Manjaro Linux on a BTRFS partition and did not create a separate parition for "boot". I am dual-booting and I want Grub to remember my last selection. I followed the tutorial to ...
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Adding a working boot option to get to my pacstrap/chroot install on a luks partition

I know there are are a lot of questions like this but the examples I have found differ enough to confuse me, I'm hoping someone can help clarify this for me. To briefly explain my setup. I have a ...
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Dual Boot isn't working; cannot come back to Windows

Two days ago I try to make a dual boot (I have BIOS Legacy) installing Ubuntu 21.04 in addition to Windows 10. Initially I think all was ok, I formatted an USB and converted it in a flash memory with ...
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I need help (both with GRUB and GPU pass-through)

How do I add a parameter to system-d on Pop!_OS? I want to pass-through a GPU. Please also give a a good guide of how to GPU pass-through on Pop!_OS 21.10. Thanks in advance.
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User defined service in systemd (not root) brings some problems to boot

I was trying to create a service (a naive one, a introduction to a OS services, in the case, using systemd; always as a not privileged user). My failed script is bellow: [Unit] Description = ...
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I can't boot to window after changing the boot entry of the EFI bootloader

Every problem started just after I typed the bcdedit code..😹 I just want to undo my command. Actually I had an issue with dual-booting, but it doesn't matter anymore. I JUST WANT TO GO BACK TO WINDOW ...
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How to dual boot macOS and encrypted Debian with rEFInd?

I am trying to run Debian on a MacBook Pro which runs macOS Catalina. Here is what I have done so far: Install rEFInd on macOS. Install Debian from a bootable flash drive. The Debian is fully ...
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Grub doesnt see drive

I recently got a 256gb drive instead of my old 32gb flash disk. I cloned the disks and the drive worked, but then I expanded the ext4 partition and now it doesn't work. Grub just doesn't see the drive ...
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Grub Error: no such device + error: unknown file system

I have Manjaro kde and windows 11, I wanted to expand the Manjaro partition so I did it from the live USB, then windows started booting automatically without a dual boot menu, I also accidentally ...
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Setting Higher, Custom Resolution in Wayland Like Virtual Resolution By Radeon

In Xorg, its easy to setup custom resolution by using xrandr. AMD offers virtual resolution by which I can set higher resolution (For ex. Monitor supports 1920x1080, but can go upto 3840x2160 or more ...
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How to set default kernel in Debian?

I am having a 5.10.0-11-cloud-amd64 kernel and have installed 5.10.0-12-amd64 kernel on Debian 11.2. I want to set 5.10.0-12-amd64 as the default kernel temporarily.I am new to Grub, How to set the ...
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GRUB password on KVM virtual machine

I'm trying to put my virtual machines in compliance with the SCAP Security Guides. There's a rule that requires GRUB to be password protected. After setting user and password for GRUB, my virtual ...
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Kali live Usb booting int grub

I am kinda new to linux. I have tinkered with it an made a parrot os Live USB. I wanted to make myself a kali linux usb so i downloaded the live iso used Rufus to flash it and set persistence ...
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Grub entry not booting up

My grub installation broke recently. I attempted to fix it by running the following commands from my Ubuntu distribution and Arch Linux distribution: sudo os-prober sudo grub-mkconfig /boot/grub/grub....
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Multi-Drive Grub Setup

My depth of knowledge for the linux boot process has always been the minimal necessary to get my system working, and my systems so far have always been pretty vanilla. So this may be an obvious set of ...
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boot fails after setting grub background

On Linux Mint, everything was working fine, but then I set GRUB_BACKGROUND=/my/path.jpg in /etc/default/grub.cfg Then I ran sudo update-grub and restarted The background did appear, but when I choose ...
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grub: What is a menu item identifier?

When setting the default grub entry a tool you can use is grub-set-default. grub-set-default specifies three ways to target a default - taken from its manpage: MENU_ENTRY is a number, a menu item ...
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Cannot umount /dev bind-mount

I made a script which (tries to) duplicate my live disk /dev/sdb to a second disk /dev/sda, one rsync per partition (full script). Last step is to install grub on /dev/sda. The method I use is ...
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Reinstall GRUB (grub-install: warning: EFI variables are not supported on this system.)

For some reason GRUB on hard drive WDC WD40EJRX-89A disappear. Maybe the reason is that I physically change SATA drives/cables and I'm not sure if I plug SATA cables in same slots. I try to reinstall ...
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Uninstall Debian while keeping grub entried of other OS

I have 3 OS on my laptop: Windows, Ubuntu, Debian (installed in such order) and Debian at the top of grub entries. I hope to uninstall Debian while keeping Windows and Ubuntu the way they are. The ...
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Centos 6.10 not booting, boot loop. VPS

I went to reboot my server gracefully. I Noticed it had booting issues randomly with a fresh install of Centos 6.6 (Installed June 2021) I believe then an upgrade to 6.10 . (issue was happening ...
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Grub - Assign IP to given MAC Address

I have a simple grub.cfg: net_add_addr efinet1 efinet1 10.1.1.10 net_add_route default 10.2.1.100/32 'gw' 10.1.1.254 configfile (http,10.2.1.100:8080)/grub As you can see the net_add_addr is ...
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MX Linux: Grub boot taking way long time

I noticed that GRUB gets stuck and tries to load attached external usb hard drive instead of the internal HDD. If I remove external HDD during boot then it loads immediately. Is there a way I can stop ...
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Does GRUB2 support TPM with UEFI?

We currently have UEFI booting up GRUB which boots up Linux. We need to implement secureboot. We're using a TPM to store our keys. Does GRUB2 support TPM - I read the only version of GRUB that ...
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GRUB boots to cli on bootup

I have a linux system, and I just installed grub on it and generated a configfile. When I boot the computer up, it boots to a grub prompt but I can type configfile (hd0,msdos1)/boot/grub/grub.cfg and ...
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Can't escape grub after Fedora 33 update

Got Fedora & Win10 dual boot for 2 years now. I've recently updated Fedora and since then I can't boot either of the systems and can't really escape grub. Tried countless youtube/forum ideas, none ...
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How to modify -iter-time on a existing luks partition

first of all I already read this topic : How to change the hash-spec and iter-time of an existing dm-crypt LUKS device? where the proposal is the following command : cryptsetup-reencrypt --keep-key ...
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Debian 11, Failed to start GNOME display manager

I have been using my usual Debian 11 installation then I launched a command of systemctl reboot, after reboot I have got a black screen which stayed for around 30 seconds before the grub screen ...
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Fresh Artix linux liveiso boots to grub rescue

I have fresh artix linux openrc iso burned to usb stick. When i try to boot, it only shows up to grub rescue. Tried with openrc and runit but same problem with both. Didn't find any related posts. ...
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GRUB set default entry to the second os

I have dual boot Ubuntu and Arch, and I think there must be a way to set the default boot entry for GRUB to boot second OS, e.g., when I reboot from Arch it will boot to Ubuntu, and vice versa. Maybe ...
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