Questions tagged [grub]

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

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Ubuntu Installation Stuck at “update-grub”

I have gone through all the similar questions asked about this problem and tried the workarounds mentioned over there but nothing works. Like the " ps | grep 'dmsetup create' " workaround ...
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Why can't grub find the disk by UUID?

I'm trying to troubleshoot why I can't boot to Windows. The relevant entry in grub.cfg is: ### BEGIN /etc/grub.d/30_os-prober ### menuentry 'Windows Boot Manager (on /dev/sda3)' --class windows --...
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1answer
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Unable to access GRUb2 menu neither the BIOS

I have an ASUS with dual boot (ubuntu 16.04 and Windows10) for a while. These days it happens that the PC boot directly into linux. I tried all the possible solutions (start button/escape key , Start/...
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Installing Kali Linux and Removing Ubuntu

I am planning to Install Kali Linux and Remove Ubuntu. My question is, I already have the Ubuntu's GRUB. So when installing Kali Linux, I am going to overwrite the Ubuntu partition. But do I also ...
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2answers
238 views

Which command was used to install grub?

I need to re-install grub (to fix the boot-hole security issue). I don't want to make a mistake, and because I'm not very comfortable with grub, I ask myself if there is a way to find the grub-install ...
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Unknown file system error

I had two OS on my HDD, Ubuntu Linux and Windows 10. Then I bought another SSD and installed another Ubuntu Linux on it. Now I am having the error of unknown file system and entering the rescue mode. ...
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1answer
148 views

Grub randomly stopped working, modinfo.sh doesn't exist, proxy stops yum install from internet

So a couple days ago my Centos 7 installation just... decided to stop working. I had left the computer on over a weekend. There were no issues with it before I left it. When I came back, the monitor ...
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1answer
58 views

Restored encrypted LUKS drive with CloneZilla makes system non-bootable

As the title says, I've made a backup of my system before sending my laptop for tech repairs, my system was encrypted and I used CloneZilla's beginner mode so as to not mess anything up. I received my ...
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1answer
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I have ubuntu on SSD and HDD. How to boot into ubuntu on SSD instead of ubuntu on HDD

I had ubuntu 20.04 installed on my HDD and i copied it to my new partition (/dev/sdb4) on SSD, then i installed grub. Now whenever i select ubuntu on /dev/sdb4 (i.e. ubuntu on SSD) boot option, my ...
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why passing console=ttyS1 to init rather than kernel also works?

I am studying serial console of Linux(Ubuntu Bionic, kernel 4.20). In grub.cfg's kernel command line, simply appending console=ttyS1 works well: other kernel options ...... console=ttyS1 , but I ...
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315 views

Dual booting Linux-Mint with Windows 10, UEFI/Legacy problem

I used this tutorial to install Linux Mint in a Windows OS Dell computer. I quickly found that in order to get into Linux I had to hit F12 everytime the computer booted, and then, select boot from USB ...
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How do i get the GRUB screen back

recently i installed mint, on the grub screen there was an option for something to do with U.E.F.I, out of curiosity, i booted into it, i turned my computer off, and then back on, it booted into ...
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Best Practices for Pop OS Fedora Windows Tri-Boot

I Have a LENOVO_MT_20MF_BU_Think_FM_ThinkPad X1 Extreme, Intel(R) Core(TM) i7-8850H CPU @ 2.60GHz Originally wanted to do this with Fedora but at the time I couldn't get the drivers to work. ...
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Writing a custom GRUB configuration entry for a Debian Buster Luks Parition

I have two installations of debian on a single hard drive. One is on ext4 partition and the other is on luks partition. I first installed debian on the ext4 partition and then on luks partition. ...
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Debian 10 not in grub menu

I was rebooting my computer because it was being really slow. On boot, the GRUB menu wasn't showing my installation. only windows. (also my windows installation got messed up awhile ago, so I can't ...
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1answer
101 views

Adding debian installed on LUKS partition to boot option

I have installed debian on two partitions on a single hard drive. One is on ext4 partition and the other is on luks partition. Recently I updated grub in the debian on ext4 partition. Since then the ...
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1answer
113 views

update-grub does not detect linux partition

I had windows and debian installed alongside on the same SSD and working seamlessly. During my experiments I played with Windows installation from USB and (of course) it ended up with grub rescue mode....
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Can't install GRUB on artixs6 base install

I was trying to install Artix linux with the s6 init system base install on a UEFI thinkpad t450, everything went well until i ran the command grub-install -- target=x86_64-efi --efi-directory=boot/...
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My grub isn't working well and I can't access my linux

I upgraded my windows 10 yesterday after which when I rebooted my PC it showed me grub rescue and I ran a series of command ls ls (hd0,msdos40 set root=(hd0,msdos4) set prefix=(hd0,msdos4)/boor/grub ...
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1answer
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Advice: Set grub-reboot option while the computer is off

I have a dual boot computer I've nicknamed Marcus. I have written an Alexa app that invokes commands on a raspberry pi. The Pi can start, reboot or power off Marcus. I have a command that will issue ...
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How to remove startup terminal “GNU GRUB version 2.02” on Linux Mint 20 cinamon?

I installed Linux Mint 20 on a clean drive, but I keep getting this terminal on startup. GNU GRUB version 2.02 Minimal BASH-like line editing is supported. For the ...
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Remove grub from boot sector

I use Coreboot. Meaning I use SeaBIOS to boot my computer. I use FDE (I don't have /boot in my compute hard drive, instead i have it in a USB). When SeaBIOS can't boot from a device, fallback to ...
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1answer
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Cant make use of grub-mkimage

I am trying to create portable grub mbr with grub-mkimage to chainload as bootsector from windows. But when booting I get stuck at a black screen with bold "GRUB" and blinking curser. No key ...
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1answer
1k views

GRUB not showing up in Pop!_OS

I recently installed Pop!_OS on my laptop and I couldn't get grub to show up in the boot screen. My laptop just keeps showing me a black screen at startup and then boots directly into Pop. I've tried ...
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How to make a hybrid Debian 10 Installer 32 bit to 64 CPU?

This is a problem with several solutions around the web, however, I didn't find any recent, not even for a Debian 8 or 9. In my Mac Mini 2007 without optical drive, the only systems I can boot are Mac ...
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1answer
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Dual Boot W10 and Ubuntu

I'm trying to install Ubuntu along side W10 (which I installed as an update to W7). I used to have dual boot and everything was working nicely. If I press F12 when I turn on my computer, I'm presented ...
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66 views

How to install grub bootloader as second stage bootloader

As you know grub bootloader supports arm architecture on recent versions,but it demands EFI ,thing that is unavaible on most arm base single board computers (SBCs) and they use U-boot instead of EFI ...
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1answer
37 views

Installing Linux alongside Windows without boot managers

Can I install Linux alongside Windows on another drive and choose what OS to boot just through UEFI? I have two disks: SSD and HDD. And so I want to install Linux OS on a partition on HDD while being ...
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How to make grub.cfg file for debian installation?

I am following this tutorial: https://www.pcsuggest.com/create-a-multiboot-usb-drive-with-grub-in-linux/. My purpose is to make my pen drive to boot from, as well as make there a partition for root ...
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80 views

grub-install: error: cannot find EFI directory — for live usb

I am trying to make my usb pen drive bootable according to this: https://www.pcsuggest.com/create-a-multiboot-usb-drive-with-grub-in-linux/, what I have done: # fdisk /dev/sdb #made new partition /...
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Why do I have a Debian grub boot loader with Debian listed as the default OS to boot showing on my Laptop when I never installed Debian?

I have an old Thinkpad T410, originally had Windows 7. Then I installed Linux Mint to dual boot. Later I made space and installed Ubuntu as my main operating system, but still have Mint and Windows 7 ...
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27 views

Grub-install options for specific partitions

I've been trying to use grub bootloader to load arch on my machine. I've asked a similar question previously and wasn't able to configure the setup to my liking. Right now I have a hard drive with ...
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49 views

GRUB multiboot — load my own application and then Linux

I'm trying to figure out if there's a way to load my own application using GRUB and afterwards load the Linux kernel (vmlinux+initrd). Say I have two menu entries: menuentry "my os" { ...
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Multi-boot on mac, Installation trouble shooting ( boot loaders, drivers, etc.)

I am a Linux newbie. I tried to do this but instead of Ubuntu, I installed Kali: https://tradahacking.vn/quick-guide-to-dual-boot-windows-10-and-ubuntu-on-a-macbook-from-external-usb-a5a8d9cfdfca So I ...
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1answer
67 views

Where does grub-mkconfig get the UUID for root?

When I run grub-mkconfig on Debian 10, it generates something like: ... if [ x$feature_platform_search_hint = xy ]; then search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt2 -...
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96 views

How to fix GRUB menu on kali linux after deleting ubuntu partition

I had a multiboot system with Windows, Kali Linux and Ubuntu After deleting the Ubuntu partition and restarting the pc I got a grub rescue message. When I entered the BIOS it told me that the Ubuntu, ...
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2answers
38 views

Grub: Difference between (hd0) and (ata0)

Grub used to display (ata0) (ata0,msdos1) ... when I enter ls in the prompt. Now it switched to (hd0) (hd0,msdos1) ... Can someone explain what the difference between the two is and if there is a ...
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1answer
96 views

Grub error: unknown filesystem (my filesystem is fine I think)

I have somehow broken GRUB. Everytime I boot, I get error: unknown filesystem. Entering rescue mode... grub rescure> ls (hd0) (hd0,msdos4) (hd0,msdos3) (hd0,msdos2) (hd0,msdos1) grub rescure> ls ...
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147 views

Grub not booting Debian without GPU attached

Summary of the problem: I want to boot a up to date Debian Buster (freshly installed in UEFI mode; only installed it to test; did not install any desktop environment or X11 or anything alike) without ...
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1answer
49 views

LUKS not prompting for password after kernel update

I have an unencrypted /boot partition and an encrypted root under lvm, created during kubuntu installation: root# cat /etc/crypttab nvme0n1p5_crypt UUID=562c3c2c-9ef4-4417-aff8-1912e3828175 none luks,...
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52 views

Debian Buster 10 KDE Plasma Login Screen not logging me in

I'm not new to Debian but I haven't really done any command line stuff. My laptop recently went through an upgrade and now I can't go passed the login screen. I'm using KDE Plasma and not even the ...
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1answer
133 views

Replacing Linux Distro with another in dual boot system

I'm using a dual system Debian/Win10, and I'm trying to replace my Debian with Fedora, so I booted into Windows then deleted the Debian partition, used Diskpart to list partitions and then rd debian /...
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25 views

Resume from hibernation Linux: Visual feedback/diagnostic screen upon resume

I am using Manjaro Linux. My hibernation and suspend-then-hibernation work perfectly. However, I would like to show the diagnostic screen when resume from hibernation. On normal boot from cold (no ...
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51 views

Linux kali 5.6.0-kali2-amd64 - blank screen after login

After updating the latest snapshot with apt update && apt upgrade, my Kali encounters a blank screen after login, but this error will disappear after few attempt of logging in. Just now, I ...
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49 views

Grub2 seems to think I have a BIOS install (i386-pc is what it looks for whereas my install uses x86_64-efi)

As the title says, I am having trouble getting Grub to boot.  Specifically, it cannot find normal.mod at /boot/grub/i386-pc, since that location does not exist. How can I repoint it to the correct ...
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72 views

Dual boot CentOS7 with Windows 10: Can't boot into CentOS

I was using CentOS 7 and Windows 10 as a dual boot on system. Everything was working fine till I updated my BIOS using windows. I can't see CentOS on startup. I have changed my hard drive to legacy ...
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0answers
189 views

Ubuntu on VMware - grub rescue 'error: no such partition' - 'insmod normal' NOT working

I did quite a bit of mistakes when adding extra disk space on my Ubuntu VM. I saw a "non active" partition, mostly empty (4KB or so) and decided that it might was a ghost partition on the VM ...
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1answer
174 views

Black screen after resuming suspension - iMac 2011, Ubuntu 20.04

newbie question here. I just installed Ubuntu 20.04 on an old iMac 2011 (unless I'm mistaken, the graphic card is ATI Radeon HD 4670). I encountered the issue of a black screen during the boot ...
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1answer
36 views

What would be the most painless way of installing Windows 10 in dual boot with preinstalled Linux? [closed]

I'm using Arch Linux. My current setup looks like this: 02:29:59 [luken@Luken-Desktop: 0] ~ (1:501)$ lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sda 8:0 1 477G 0 disk ├─...
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26 views

Mounting the root filesystem as read-only via kernel command-line

Is it possible to mount the root device read-only (or if it's possible, mounting all but /tmp/ in order to be able to start X11 ) via the kernel command-line not via /etc/fstab ? If I add the option ...

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