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Questions tagged [grub2]

GRUB 2 is the next generation of the GRand Unified Bootloader (GRUB). Ubuntu has used GRUB 2 as the boot loader since 9.10 (Karmic Koala). Commonly referred to as simply "GRUB".

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9 views

Grub unable to access TFTP server to load grub config

I am attempting to pxeboot and install Ubuntu 20.04 on my target computer configured to use UEFI. My build server is a Raspberry Pi running Raspbian. I am using dnsmasq as the dhcp/dns/tftp server for ...
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Can't boot Ubuntu USB on Lenovo Legion T5

I am trying to install Ubuntu 20.04(LTS) on a Lenovo Legion T5 28IMB05. I downloaded the ISO and installed it on a USB drive. After selecting the USB on the boot screen, I found myself at the "...
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Unable to repair grub on dual boot Ubuntu 20.04 with Windows 10

Something went wrong with my dual boot system with Ubuntu 20.04 and windows 10. I have windows in installed on SSD and Ubuntu on HDD. It started to give me a black screen on boot with no ubuntu logo/...
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Boot process not showing

When I power on my laptop it is not showing the boot processes, it only shows the bunch of @@@@@ character although it will boots up when I login to the my account keyboard's some keys are not working....
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After update to ubuntu 21.04 just boot in emergancy mode

After upgrade to 21.04 from 20.04 my desktop just boot in emergancy mode. Can any body help me solve this? This is picture from boot menuerror in emergancy mode
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cloned Ubuntu 20.10 installation on same hardware fails at boot

I have more than 100 units of the same HW I need to prepare for our product delivery. All of them are the very same HW (celeron N platform, 32GB SSD) and come with a standard Ubuntu 20.10 installation ...
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18 views

Switching from an SSD to HDD, how will Grub behave?

I am going to replace the HDD in my dual-boot laptop with an SSD. I don't want to move my files, since everything I need is backed up to the cloud. This is what I plan to do: Install a fresh copy of ...
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24 views

How to reinstall missing libraries to repair ubuntu 20.10 after stupidly purging some libraries and shutting down

I'm fairly new to linux and I was trying ti install samba in order to use to share files with a Windows 10 qemu/kvm virtual machine. Samba though wouldn't be installed and I couldn't figure out why. ...
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30 views

Grub can't find windows bootloader

I'm struck in a terrible terrible situation. PLEASE help me out here !! Story I have an Acer Nitro(intel i5 8th gen cpu) dual booted with Windows 10 and ubuntu 20.04. I have 2 disk drives- one is ...
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Set resolution 2560x1080 Wayland update 21.04

I recently updated from Ubuntu 20.04 Groovy Gorilla to Ubuntu 21.04 hirsute. With 20.04 I was able to set the custom resolution of my LG ULTRAWIDE monitor to 2560x1080 using xrandr because my session ...
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Repair grub screen after cloning working-Ubuntu and working-Windows-10 to Samsung SSD and then boot from SSD?

I cloned my working Ubuntu 20.04 & Windows 10 HDD to Samsung SSD and when I boot from SSD & select Ubuntu, I get the grub command line screen as seen here. Windows 10 however boots ...
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34 views

How to update GRUB in a dual booting disk?

I want to install Fedora (I want to use GNOME 40) with Ubuntu 20.04 on my disk. I am afraid of updating GRUB directly with update-grub in Ubuntu than in Fedora will break the bootloader. What is the ...
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How can I “isolate” GRUB from one distro to another on a multi-boot setup?

I have a triple boot setup with KDE Neon Unstable (we'll call this the primary since that's the one I use the most so far), Ubuntu MATE development release, & Windows 10 on a laptop (thanks to ...
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35 views

Grub sometime don't let me start system

fwends, I have installed windows 10 next to ubuntu 20.04.2LTS also I've added below kernel parameter acpi_osi=linux acpi_backlight=intel Without this parameter, I wasn't able to change brightness (...
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Updating grub configuration is only working from the last installed system

Installing more ubuntu systems only let me use the very last to update grub configuration. Configure the grub to my needs then execute sudo update-grub will work on any system but only is recognized ...
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22 views

Grub custom menu NOT SHOWN when not using 30_os_prober

I just installed an old ubuntu distribution ( 16.04.) as third system. Using the /etc/grub.d/40_custom file works fine if the 30_os_prober file is used too. But make the last non executable or use in /...
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Is there a proper solution to “Keyboard and Mouse not working after boot” problem?

I recently replaced a smashed screen on a HP Spectre x360 G2, running Ubuntu 20.04LTS. However, after booting up again I had lost the use of the laptop's touchpad and keyboard (NB. devices still ...
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25 views

Modify grub on bootable usb

I have a windows laptop with a confused keyboard that keeps thinking that the windows key is being held down. When I use the Ubuntu 20.04 bootable usb it still thinks that the windows key is being ...
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21 views

how to recover windows 7 overwritten by ubuntu server 18.04

I installed ubuntu server 18.04 on my computer, and there was an error when setting up the partition, so the windows 7 hard drive and my data were deleted / overwritten by this ubuntu install, I've ...
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34 views

Common failed to install grub

Thanks in advance for any help provided. I have been at this for a few days now and have no idea what to do. After many attempts at installing ubuntu as a dual boot w/ windows, nothing has worked. I'...
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recover from shim fail after change from grub2 to shim in 18.04 can not login

Apparently, ubuntu 18.04 has decided to make system changes without asking. One of these was a change from Grub2 64 bit which was fine, to shim which has now locked up my computer and made it unusable....
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38 views

Grub broken and password lost

My grub is broken and my PC is booting into the grub command line. I managed to get the PC to reboot with the following commands: set prefix=(hd0,2) set root=(hd0) insmod linux insmod normal normal ...
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27 views

No Option to Select Operating System - Stuck in Aptio Setup Utility - Please Offer Diagnosis

I recently purchased an M1T Mini PC Desktop Computer Intel Celeron N4100 (I believe this is an SSD device) which came with pre-installed Windows 10. Within Windows 10 I adjusted the size of some ...
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ubuntu login fails with Sorry, that didn't work even after resetting password in GRUB

Running ubuntu 16 from vmware. Login was failing, so i reset password following grub recovery. Even created a new user/password. Neither user/password combinations work from the login screen. I see ...
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1answer
148 views

What kind of machine can I use to install Linux Ubuntu? [closed]

I have already followed a process for instaling Ubuntu by myself without knowing anything about this OS back in 2005 (I had background for installing OS s.a FreeBSD 4.2). My machine was bought on 2005 ...
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68 views

I can't upgrade or install a software, always showing this error on grub-pc linux-image-5.8.0-53-generic [closed]

$ sudo apt update && sudo apt dist-upgrade -f Fetched 114 kB in 3s (40.1 kB/s) Reading package lists... Done Building dependency tree Reading state ...
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Ubuntu 20.04 boots slowly after regular update; boot and efi partition appear on toolbar and Nautilus left menu; files load slowly into editor

Apparently after todays system update, Ubuntu 20.04 boots slowly. Other effects are that boot and efi partitions appear on system toolbar and Nautilus left menu. Also files load slowly into editor. ...
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19 views

Swap out one distro in a dual boot setting for another, without affecting the second OS?

I have Lubuntu installed, alongside windows being dual booted. I was trying it out as my main distro and it sucks. I'd like to keep the windows install, but replace the Lubuntu install with Xubuntu. ...
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38 views

My touchpad doesn't work perfectly after upgrade of Ubuntu

I used all the options on my touchpad (two fingers to scroll the page, two fingers to direct-click, etc) and after I updated Ubuntu today, it just stopped. The touchpad works, but only normal click ...
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26 views

My PC wont boot [closed]

When I try to boot my Ubuntu PC, I get an error error:attempt to read or write outside of disk 'hd0' and then get redirected to the GRUB page. Any command to modify anything gives me the same error. ...
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Ubuntu on HP Pavilion X360 14-dw1053TU

My New Laptop! lol Hi, I bought a new Laptop last Sunday to Internet Shopping and receive it yesterday. After I unpacked my new Laptop, I installed MS Office and Hancom Office on Win10 and re-...
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rEFInd has multiple `grubx64.efi` entries

I have installed rEFInd to use on my desktop, which I am dual-booting Ubuntu and Windows 10. In the past, I have simply ran refind-install and refind-mkdefault, and it has worked perfectly. However, I ...
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My Linux Mint PC wont boot [closed]

When I try to boot my PC, I get this: error: attempt to read or write outside of disk 'hd0' When I go to grub and type linux (hd0,msdos1)/vmlinuz root=/dev/sda1 I get the same error Also I only run ...
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70 views

Grub related error from software updater “Package dependencies cannot be resolved”

Software updates usually are problem free but I'm getting this one. My older desktop runs Ubuntu 20.04.2 LTS This error could be caused by required additional software packages which are missing or ...
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18 views

Problems installing and booting to ubuntu

Hardware: msi meg ace x570 mobo, newest bios flashed, ryzen 5950x, 2 adaptec 71600 sas controllers, x1 version of the asus gt710, 240gb kingston ssd, will be 30 more samsung drives on the adaptecs ...
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20 views

Stuck at Grub prompt after upgrade to Hirsute Hippo

I was invited to upgrade to Hirsute Hippo which I've done. Machine was working fine before the upgrade. But now when I boot I get the grub prompt. Typing exit just gets me back to the same grub ...
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28 views

after installing ubuntu along with win10, windows not see any disk partition and not boot

I have a 500 gb hdd on my laptop pc. Before installing Ubuntu, I had 2 partitions C: and D: and win10 was installed on C:. I installed ubuntu on D: partition. And i can see both c: and drives under ...
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19 views

Ubuntu won't boot on my external drive with a Mac desktop

I'm running Mac 10.13.6. I have Ubuntu installed on an external Seagate 1T drive. I've used Unebootin to install. I get a message with grub over and over. I have tried with Virtiual Box as well same ...
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28 views

Where is the grub on this dual boot?

I just made a dual boot on my PC. I had the windows previously installed on a 512G ssd and installed ubuntu on a 2T HD. After a little of reseach (I'm a very begginer) I did the normal installation of ...
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101 views
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Ubuntu 20.04 Stuck on Black Screen Before Login

My computer is stuck on black screen with cursor before Login after booting into Ubuntu 20.04, nothing is working, even cursor is not moving, its freeze, i also tried CTRL+ALT+F4 its not opening the ...
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24 views

When i click a button in ubuntu install window it starts loading for a loong time please help

First of all i installed ubuntu without any usb or dvd rather i used a software but i thought that the installation was not correct and clean.So i decided to remove it and uninstall it.But mistakenly ...
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2answers
51 views

The best way to fix the GRUB EFI boot loader folder to the right FAT32 boot partition in Multi SSD/NVMe OSes installed?

As the picture below, in the past I have installed few times the Ubuntu for differetn testing. But in the last Ubuntu OS installation on my new SSD, I devided the partition for my needs and created ...
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0answers
64 views

Can I install Ubuntu on external USB drive from Ubuntu desktop without using ubuntu installer? How?

Perhaps this is a strange ask. I already have a laptop (#1) running Ubuntu 20.04LTS. Question 1: I want to install Ubuntu onto a bootable external USB drive (flashdrive or SSD) from the existing ...
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32 views

Dual booting Windows 10 and Ubuntu 20.04 causes bootloop until BIOS goes into failed boot mode

I have been running a dual boot Windows 10 and Ubuntu 20.04 for about a month now. 9/10 times I boot the PC I have no problems and I am presented with the grub menu after I see my BIOS logo screen. ...
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1answer
22 views

Grub menu appeared without configuring it

I had a clean ubuntu installation on one SSD, and a clean windows installation on another SSD (two physical SSDs, not partitions). I usually switch using the bios boot menu because I spend 90% of my ...
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1answer
81 views

How restore Grub after Windows10 update

Have XUbuntu 20.04 and Windows-10 in a duel boot configuration. Both OS working well for about 6 months. Boot default was set to Windows-10. Used MBR rather than EFI for boot (12 yr old motherboard ...
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0answers
35 views

Dual boot on separate drivers questions: Boot loader installation

I'm pretty sure that this question have already been asked, but i didn't found it :/ I'm a very begginer in partitions/ubuntu in general. My question is pretty simple. I have a 500G ssd with Windows ...
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0answers
32 views

I deleted the linux partition from a dual boot configuration and now it boots into grub prompt [duplicate]

I deleted the linux partitions from a dual boot configuration and extended the unallocated space back to my main C drive. Now when I boot back into my PC it automatically boots into the grub prompt. ...
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0answers
22 views

unknown filesystem grub error Ubuntu Server 20.04.1

Background Ok, to give some background, this is a server I built from old computer parts I had lying around. So, this is why the hard drive has an extra partition on it that is unrelated to the ubuntu ...
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0answers
23 views

Kubuntu won't boot, ACPI error/exception

I have kubuntu installed but I can't check the version since I can't boot up. I'm not very Linux saavy. I haven't used this computer in a couple weeks and after trying to restart it after a power loss ...

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