Questions tagged [grub]

GRUB (GRand Unified Bootloader) is a multiboot bootloader from the GNU project. This tag is for questions relating to the legacy version of GRUB. Use the GRUB2 tag for questions dealing with GRUB2, a rewritten version.

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cannot start BIOS instead grub o.4.4 menu appears. im trying to boot pop!_os from a USB, any ideas?

am i pressing the wrong key to start BIOS ive tried all f1,f2 etc? OS Name Microsoft Windows 7 Home Basic Version 6.1.7601 Service Pack 1 Build 7601 OS Manufacturer Microsoft Corporation System ...
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Will a Windows 10 installation on a seperate drive cause it to overwrite GRUB?

I have an Ubuntu system (UEFI) and I want to run a Win 10 installation on a separate disk. My goal is to switch between operating systems by changing the boot order of disks from BIOS. However, I'm ...
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removing and reinstalling windows 10 along side linux

I have installed Arch Linux on nvme0n1p5 and windows 10 is on nvme0n1p4. Also as far as I remember I installed the grub bootloader on nvme0n1p2 i.e. boot/efi along with windows boot Now I want do a ...
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How do I reset “bcdedit /set {bootmgr} path … ” when not being able to boot windows?

I am using a dual boot system - Windows 10 & Ubuntu 20.04. After a Windows update I was no longer able to boot Ubuntu. Grub was not showing up, there was just a blinking white cursor on the screen....
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Ubuntu can not boot due to disk space full

I am using Ubuntu 20.04 on a Virtualbox in a portable SSD, but I was not paying attention that the disk space is running out. Now from the Virtual box, it can not enter the Ubuntu GUI. The grub is OK, ...
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Windows won't boot from bootloader; prefers GRUB instead

I was messing around with Ubuntu, installed it, decided to delete it. Now, I have a problem. I tried using bcdedit /set {bootmgr} to set the boot manager back to Windows, but it keeps booting from ...
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25 views

Dual Boot Windows and Linux on separate physical drives

I have a UEFI-based system. I want to have a Windows–Fedora dual-boot configuration such that both systems are isolated from each other. Here is what I mean by the term isolation: Both systems should ...
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Metro boot locked me out of windows due to loop

I managed to successfully dual boot Manjaro and Windows 10, from Windows, using a program called easyBCD. It was all working normally, but there was 1 little issue I found, which was that you had to ...
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Booting windows seamlessly, but boot ubuntu if a key is pressed

I have been using a windows 10 machine, with a ubuntu virtual machine running on it, but now I want to install ubuntu directly on the physical machine. This is a shared computer, so I need windows to ...
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Extra entry in Grub menu

My Toshiba laptop came with Windows 7 pre-installed. I installed Xubuntu on dual-boot (BIOS not UEFI). When Windows 10 came out, I upgraded to it, but now Grub shows two entries for Windows (besides ...
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Is grub Installation possible offline in linux?

Recently I have been trying to install Pop OS and it seems to be really complicated for me. Now, I am gonna install it. After installation, when you restart, you won't be getting the screen where we ...
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Ubuntu 20.04 /usr/sbin/grub-mkconfig: 8: /etc/default/grub: GRUB: not found getting this error

Have problems with grub when doing updates, so i ran this command: sudo apt-get install --reinstall grub2 I get this error. /usr/sbin/grub-mkconfig: 8: /etc/default/grub: GRUB: not found the grub file ...
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Trying to add Arch Linux to a UEFI hard drive with Ubuntu, Debian, and GRUB already installed

I downloaded Arch 64 bit ISO to a USB thumb drive and booted into it. The target system is a Gigabyte board with an Athlon CPU and 8GB RAM, 1 TB hard drive with UEFI. Followed the built-in "...
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Empty Grub after installing windows over kali

I used Windows and Kali Linux together for some time. Yesterday I changed my Windows, but after reinstalling Windows, grub was gone and the laptop was directly booting to Windows. (Both Kali and ...
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“linux” grub loader can't detect android

[volume][1] I had installed Android(Bliss OS) in New Volume(D). When I successfully installed it, I noticed that it was asking me to use or reboot. I was using few moment. When I reboot after using ...
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How to prevent GRUB from scanning lvm snapshot?

My root file system is a LVM2 logic volume, and there are few snapshots of it beside. Every time when I run update-grub, it always add menu entries for those snapshots as if they are normal volumes. ...
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GRUB missing Window option after update

After Windows update yesterday, my PC which initially dual boot with Ubuntu alongside Windows 10, has a missing "Windows" option upon the GRUB start up. I had tried to repair the PC with ...
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how to fix grub (efi) error install Linux Debian v10.9.0

I can not install the Linux Debian because it cannot be installed grub (error). Did anyone have such a error? How did you fix this? Thx I allocated space for the EFI, load the installation, ...
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Unable to boot Ubuntu from external USB hard drive, kernel panic

The same system has booted fine in the past. Now, when I try to boot, it fails. In recovery mode, it ends in: Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0) The GRUB ...
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After updating my Windows10, I cannot run Windows in my dual boot (Ubuntu/Windows) system

I have a dual boot Windows 10 and Ubuntu PC. Yesterday I updated my Windows 10, but after that when I want to run my PC, grub comes, but I only can go to Ubuntu: every time I select Windows, it ...
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10 views

2 /boot, 1 grub and EFI

I have two partitions that serve as /boot for their respective Linux distributions. Grub "runs" out of one /boot partition and I need a menuentry that enables boot from the the other /boot ...
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21 views

Bitlocker Password Prompt UI Change

I'm curious about some behavior in the pre-OS environment involving Bitlocker. The behavior is entirely a non-issue, but I can't figure out what caused it and how to restore it and not understanding ...
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Dual-Boot system with Ubuntu cannot access Windows 10 (grub update and boot-repair not working)

I've recently entered in possess of a desktop computer with Ubuntu 16.04 and Windows 10. Booting it, it will immediately start Ubuntu and I'm currently not able to log in into windows. I've already ...
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Adding Ubuntu Boot entry to Fedora 33 Grub2 with separate /boot partition

I installed Ubuntu using debootstrap and chroot into the below partitions, ├─nvme0n1p4 259:4 0 2.3G 0 part /run/media/ignor/a62e0718-10c6-4224-8097-...
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18 views

Dual boot windows/linux forever boots to GRUB loading

I have a dual-boot PC running Windows 10 and Linux. Something got jacked up and now it's impossible to boot to windows. The PC always boots to this prompt no matter what I do: GRUB loading. Welcome to ...
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How to make dual boot working on this machine? Windows 10 and Debian

I try to install (again) Debian on my computer, that used to have dual boot config in the past. Let me just tell you what is the history. It's Lenovo Legion y530 laptop. I used to have dual boot on it ...
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Grub lost after dual boot 2015 Macbook pro MacOS to Kubuntu Linux

I partitioned my hard drive on 2015 Macbook Pro in order to install Linux. I have successfully installed Linux on my macbook pro, but when I shut down or restart, it doesn't give me an option to boot ...
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Boot Repair is not working

I am using Ubuntu 20.04, 0 I followed recommended instructions on Boot Repair documentation but got an error saying Please enable a repository containing the [grub-efi-amd64-signed] packages in the ...
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32 views

BIOS screen edges cut off when displaying over HDMI to TV

I've connected my desktop computer's HDMI output to one of my TV's HDMI inputs, but when I boot up into the computer's BIOS, the left and right edges of the BIOS screen are cut off significantly. The ...
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24 views

Disk cloned with CloneZilla does not boot ( end up in grub prompt)

I did a complete clone of a disk (disk-to-disk with all partitions) using Clonezilla. The exact option I took was: device-device work directly from a disk or partition to a disk or partition I had ...
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How to lock grub menu? (I do not want to use users-password in grub if possible)(I am using diskless pxe boot

this is my first question, so sorry if I don't explain well and for my bad English. I am working with PXE diskless boot, and I want the grub menu entries cannot be edited so the unique action ...
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1answer
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How can I create an automated grub rescue disk for Gen8 Microservr?

I have a HP Gen8 Microservr since 2016 and after a format I can't boot it normally anymore. Here is the quite complicated setup : SATA port 1 : ssd with debian (from wich I used to boot...), SATA ODD ...
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Making an API call in a GRUB script to select OS to boot

I have a computer with multiple operating systems and GRUB installed. The system is often woken up over LAN using a magic packet, but without someone being physically present, it's not possible to ...
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34 views

how to fix grub on a legacy Bios system

I have a laptop, which does not have UEFI that had Ubuntu Mate 20.04 as the only os. I installed antix 19 and had no problem with the dual boot, which set antix as the root. After doing apt upgrade in ...
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Set default boot manager to Windows boot manager

I had installed a Linux distro but then deleted it. I forgot it had grub so I spent a day fixing and finally booted into Windows. That’s because I set my boot manager to grub. How can I change it back ...
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1answer
33 views

Grub2/Debian10 change root partition on boot

I have a headless NAS system that ran out of disk space on it's system partition. It's running Debian 10, usually managed via OpenMediaVault 5 with a grub2 bootloader on an EFI system. Apart from the ...
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42 views

Clone Windows to External Drive and Make Grub Aware of It

My current setup contains the following operations systems Windows 10 Home Edition Fedora 34 I rarely use Windows 10, pretty much only in case I want to update some settings in MSI Dragon, e.g. ...
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How do i reinstall the builtin python on ubuntu 20.4lts? Terminal, Software Store and APT is broken because of it

So my issue started 2 days ago when I tried configuring the python interpreter on pycharm. I am new to linux and didn't know it was a bad idea to install newer versions of python. I am positive I ...
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44 views

Fedora 32 dual boot “You need to load the kernel first”

I've dual booted Fedora with Windows 10 and I'm getting You need to load the kernel first error in the grub menu and I've been suggested to chroot into my Fedora Installation using a live usb, But ...
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1answer
66 views

GRUB2 - Select OS based on time (RegExp or other method)

I'm trying to make grub2 boot to Ubuntu when in a certain hour interval and otherwise to Windows. I'm trying to do this by editing /boot/grub/grub.cfg and changing which OS is being used as default on ...
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25 views

How to mount /run from a Linux live usb in order to chroot?

I have a system dual booted with Windows 10 and Linux on it for some reason I'm getting "You need to load the kernel first" error on the grub menu so someone has advised me to boot from a ...
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22 views

Computer will not find and boot into any Linux OS

Recently, my computer has refused to boot Linux from its hard disk. On some Linux distros, like Arch, my computer will find the grub menu, and will say Loading initial ramdisk..., but will fail to ...
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2k views

Kali linux booting from usb get weird images and commands

Hi everyone after I added kali linux to usb and tried to booting it on th new pc it didn't work it showed me some commands that are not clear to me I tried with secure boot but it's not about it all ...
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33 views

How to remove second boot OS to install another OS?

I have a laptop with dual boot with Windows10 installed first and then Linux Mint and at boot appears the Grub menu. I'd like to install another Linux distro, but first I'd like to remove the Linux ...
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Is it safe to delete unused EFI partitions?

So before I start I would like to clarify that I'm a complete newbie with all this so please don't mind if I'm senseless and please direct me to the right direction, So Earlier I dual booted Fedora 32 ...
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18 views

Ubuntu18.04 Boot error by disk associated with missing UUID

I will use it for the first time, I'm sorry if I'm new to English and it's hard to read. Machine: DELL XPS17-9700 DualBoot: Windows10Pro/Ubuntu18.04 I was able to boot Ubuntu normally, but suddenly ...
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1answer
22 views

Linux Mint 19: reset user password from grub bash on a MacBook Pro 2010

I'm running Linux Mint 19 on a MacBook Pro 2010 as the sole OS on the machine. I need to reset my password but the grub menu doesn't show up. I can only access the grub minimal bash shell by keeping ...
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11 views

Live Linux ISO booted from BCD-store not working

I am trying to boot an ISO of a Linux live-CD through Windows Vista/7/8/10 BCD store. Although every ISO I tried has successfully booted, but only to some extent. FreeDOS is the only ISO which boots ...
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29 views

GRUB does not see Windows 10 partition anymore

I have Linux Manjaro and windows 10 installed in dual boot on my SSD in UEFI/GPT. Was able to load windows normally from GRUB boot menu just a few days ago but now Windows is not recognised. I can ...
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33 views

Linux usb live cd not starting due to secure boot error

Greeting to you all, I'm having the following issue. I've received a notebook (acer Aspire 3 A315-23) and I'm trying to install a linux distribution on the system (namely a devuan beowulf). I created ...

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