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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41
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9answers
253k views

Add Windows 10 to GRUB OS list

I recently got a computer from school. It came with Windows 8.1 installed. I then installed another copy of Windows 8.1 (so it would use the built-in Windows Pro license) and upgraded it to Windows 10....
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Sometimes keyboard's alphabet and number keys are not working

Sometimes my alphabet and number keys suddenly stop working in ubuntu 18.04, while they are working fine on windows. Other keys are working well. On my screen the not symbol appears and then keys stop ...
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0answers
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Can't resize Ubuntu partitions from a live USB as it freezes

I had dual booted Ubuntu 18.04 with windows 10. I had given 80GB space to Ubuntu of which 20 GB was for root, 4GB for swap, rest for home. I am running low on space on my root partition. So I want to ...
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3answers
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Dual Monitor Setup : Grub loader goes to HDTV even if it is turned off

I'm sorry if this is a repeat but I can't find the answer to this anywhere. I have a dual boot system with Windows 7 and Ubuntu 12.04. I recently bought an HDTV and connected it to my computer by ...
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0answers
12 views

Laptop giving boot device missing error temporary fixed by bootable disk,

I have Lenovo Ideapad 320 Laptop, where I had Windows 10 and Ubuntu 18.04 dual boot installed. Last few days when i start laptop if giving "Searching Media" instead grub menu. Later it ...
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5answers
38k views

How do I apt-get -y dist-upgrade without a grub config prompt?

Per Make apt-get (or aptitude) run with -y but not prompt for replacement of configuration files? I did the following: ec2run ami-3c994355 --region us-east-1 -n 1 -t m1.large -z us-east-1d On the ...
1
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1answer
117 views

How to I get a USB keyboard to work with GRUB on Ubuntu 20.04?

I have a new machine (AMD 3960X with a MSI motherboard). I have 4 separate drives with different OS's (Ubuntu 20.04, Windows 10 and 2 versions of Ubuntu 16.04). I keep then completely independent on ...
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0answers
37 views

grub boot error : "symbol 'grub calloc' not found - Ubuntu Server 18.04 LTS

Having read a lot of the posts and responses I'm sorry to have to start a new thread on this topic - for reasons below. I am currently running a physical server (HP ProLiant Gen 8) with 8GB RAM ...
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0answers
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How do I fix the Grub black screen error after attempting partitioning using AOMEI partition assistant on Windows?

I had set up a dual-boot for Windows 10 / Ubuntu 18.04 LTS and it has been working fine for a few months now. After I tried to resize my D: partition on Windows using AOMEI partition, it must have ...
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1answer
82 views

Ubuntu fails to boot with kernel 5.4, ic2 timeout error

I have a laptop running ubuntu 18.04 that suddenly refused to boot, showing these errors, white on a black screen: nvidia-gpu ic2 timeout error e0000000 i2c_transfer failed -110 ucsi_ccg_init failed -...
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1answer
1k views

How to get to Grub menu on 20.04?

I've got this error when I try to boot my desktop up. /tmp/mountroot-fail-hooks.d//scripts/init-premount/lvm2: No such file or directory I'm running "on the metal" or whatever, no dual-boot anything....
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0answers
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Can't boot into Windows after installing Ubuntu, how to fix it? [duplicate]

I installed Windows 10 on my computer, followed by an installation of Ubuntu 20.04.1. However, now I'm unable to boot into my Windows 10 even though it appeared on grub menu. When I selected windows ...
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0answers
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Does Ubuntu erase all the Windows partitions with the Erase Disk option? [duplicate]

I'm finally getting rid of Windows 10 and fresh installing Ubuntu for the first time. Pre-installed Windows 10 comes with some hidden partitions The last 3 NTFS partitions are the ones I have access ...
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2answers
173 views

Does “Erase Disk and Install Ubuntu” replace the default boot screen?

I am new here. And I may replace a laptop's hard disk with Ubuntu. It's an HP Compaq notebook which has Windows 7 installed. So If I choose that install option, will it replace the screen that says ...
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2answers
5k views

Saving a file in gedit prints a warning in terminal

I recently installed a GRUB theme from gnome-look.org on Ubuntu 20.04 LTS (my PC is Windows 10 dual-boot with Ubuntu). To install the theme successfully, the file at /etc/default/grub needs to be ...
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0answers
25 views

Multipartition Device

I have an Ubuntu 18.0.4 partition that results in a black screen upon booting. I added nomodeset to the grub and still seeing the same error. However, another partition with Kubuntu 20.04 on the same ...
2
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1answer
135 views
+100

How do I get grub-efi-amd64-signed to not automatically overwrite NVRAM on update

I am using refind as my main boot loader. Since it can load kernel images directly, I probably don't even need GRUB much, but keeping it around just in case feels safer just in case. What's annoying ...
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1answer
67 views

How to Re-boot to USB stick using bash script

While running a bash script, I would like to programmatically re-boot from a USB stick. The bios is set up to boot from the HD. Is this possible? Any hints? Why do I want to do this??? I'm updating ...
0
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1answer
27 views

Ubuntu won't boot and stuck at black screen

I successfully dual booted Ubuntu 20.04 on windows 7. After a month, I removed my windows 7 and since then I started experiencing black screen at boot (without blinking cursor) which I somehow ...
33
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9answers
18k views

How to fix a grub boot error : "symbol 'grub_calloc' not found

Just ran the latest batch of updates on 20.04 (Xubuntu), and now I'm getting a GRUB error: symbol 'grub_calloc' not found I'm dropped into the 'grub rescue' shell, but have no idea what to do there ...
0
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1answer
33 views

Dual System: Can not get into GRUB interface automatically

I am using a dual system, Windows/Ubuntu. I used to be able to get in GRUB automatically. However, after one rebooting from Windows to Ubuntu, I can not get into the GRUB interface unless I press &...
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0answers
25 views

grub-efi-amd64 post install script error 255

I installed a package this morning, which succeeded just fine, but I noticed an error related to grub-efi-amd64. I asked dpkg to configure the package to demonstrate the error. The post install script ...
0
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1answer
3k views

Gnu Grub 2.02 beta2-9ubuntu1.3

I installed my ubuntu 14.04 in pc alongside with win 10. Then I restart my pc and when i want to boot ubuntu, open me the window and there is: GNU GRUB version 2.02 beta2-9ubuntu1.3 Minimal BASH-like ...
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0answers
29 views

LUKS encrypted Ubuntu disappeared from GRUB menu

I've been happily running a triple boot for nearly half a year with an unencrypted ubuntu 18.04, windows 10, and LUKS encrypted ubuntu 18.04 (not full disk). I rebooted from my unencrypted ubuntu into ...
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0answers
15 views

Ubuntu 16.04 occasional slow boot

The problem: My Ubuntu 16.04.06 LTS system boots very slow, sometimes. This seems to happen 1 out of 5 times when the power is cut off. Standard boot/reboot does not have this problem. But since it ...
0
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1answer
51 views

Dual Boot Ubuntu on HDD and Windows on SDD, tried installing but grub not working

I have an SSD of 256GB with Windows 10 installed in it. I want to install Ubuntu 18.04 on HDD. I tried installing it on HDD by creating /, /boot, /home , EFI partitions ( I was unable to install ...
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0answers
19 views

Grub-update repeats itself

grub-update runs when I run apt upgrade or something like that with apt. That is understandable since it is probably the Linux kernel that is being updated. However, every time grub-update runs, ...
0
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1answer
106 views

Error: invalid environment block. Press any key to continue (Ubuntu 20.04 ZFS)

The error message appears immediately after the boot screen on purple background. Ubuntu 20.04 (ZFS) LTS. error: invalid enviroment block. Press any key to continue ... not help cd /boot/grub rm ...
0
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1answer
42 views

Update-grub links to incorrect partition

I've got two installations of Ubuntu 18.04 on my computer. Ideally I just want one but when I run sudo update-grub it keeps updating the configuration for the wrong partition. I eventually want to ...
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0answers
23 views

install ubuntu and grub onto specirfic drive

I have a laptop with a windows install on nvme and a no longer wanted linux distro I want to overwrite on a seperate ssd. I installed the old distro with the nvme drive disconnected so grub lives on ...
2
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2answers
3k views

18.04, Slow boot and black screen on boot before reaching login splash

Xubuntu 18.04, 4.15.0-24-generic, ThinkPad T430. Uses Intel HD iGPU graphics (nvidia dGPU disabled in BIOS). Recently started having this issue with a slow boot, where the boot process hangs on a ...
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0answers
24 views

Ubuntu System BootOrder not found on Acer Aspire F5-573

I have had Ubuntu system on my machine for a year now, all working perfectly. Today when I wanted to access Ubuntu I got the following message: System BootOrder not found. Initializing defaults. ...
0
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0answers
24 views

How to migrate dual OS to bigger SSD?

I want to migrate Ubuntu 20.04 to bigger SSD(1 TB) from old SSD(256 GB). It is a Dual OS (Windows 10 + Ubuntu 20.04). But my motherboard has one M.2 socket only. If part to part migrate, how to deal ...
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0answers
34 views

How to clean and reset Ubuntu partitions and GRUB menu

I'm quite new to Linux and I think I accidentally removed files related to my boot configurations while clearing redundant disk on my secondary SSD. After that my computer was unable to detect any ...
0
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2answers
50 views

Black screen with GNU GRUB version 2.04 when i turn on my laptop

This question is different from the previous ones. So please go through it before flagging Few days back. I had a dual boot in my laptop (with ubuntu) which earlier had windows 10 only ["Install ...
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0answers
41 views

bootloader install faield

I have tried to install Ubuntu 20.4 and I already have windows 10. During installation, I choose install Ubuntu alongside windows 10 and these error appear : error1 and after that , it appears : I ...
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0answers
42 views

I messed up bad. (chmod 700 /bin) [duplicate]

That's not where my problem ends unfortunately, I'm running Ubuntu 20.04 and Ive never been able to boot into the grub menu. This means that I have no way to access recovery mode. All I can access is ...
4
votes
3answers
11k views

How do I enable the GRUB splash screen in Xubuntu 12.10?

I have Xubuntu 12.10 running fine on a Thinkpad T60. Grub2 is installed as the boot manager and the GRUB....LINUX_DEFAULT is set as "quiet splash". Therefore, Grub should display its splash image ...
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1answer
4k views

Creating a Portable Ubuntu 18.04 OS in a External SSD

I have been trying from last few days to create a Portable OS. My reasons being Avoiding Dual Boot To make the OS like Plug and Play Before trying on External SSD as they are costly, I first tried ...
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0answers
16 views

Grub Installation

So, I am installing Linux, and the installation media is asking which drive should GRUB be installed to. I have 1 disk dedicated just to Windows, and a second one for extra storage, but I partitioned ...
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0answers
28 views

I've troubles to run ubuntu on my laptop

I recently bought a MSI Bravo 15''(the rx5500m version), wich work flawlessly with windows and manjaro, but I can't make it run with Ubuntu wich is my first option when I want to work with linux. The ...
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1answer
44 views

Installed ubuntu on usb stick works fine on same laptop used for installation but does not boot on other machine it shows a blank screen

Installed ubuntu 20.04 on a usb stick then used that to create a full ubuntu installation on a usb stick with 3 partitions swap, /boot & ex4 with a "/" Now the usb stick works well on ...
2
votes
2answers
148 views

Ubuntu doesn't boot from usb stick

DISCLAIMER: I DIDN'T WANT TO INSTALL IT IN DUAL BOOT ON THE MAIN DISK I wanted to install Ubuntu on a USB stick, so I took two of them, let's call them sdc and sdb, formatted them, mounted the Ubuntu ...
8
votes
6answers
28k views

grub_file_filters not found after Ubuntu 19.10 upgrade

I upgraded Ubuntu from 19.04 to 19.10. The upgrade went without errors but after restart grub throws an error on startup and goes into rescu mode error: symbol 'grub_file_filters' not found. ...
0
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1answer
37 views

Booting fault on Thnkpad T495 Ubuntu 20.04

When I switch on My Thinkpad T495 Ubuntu 20.04 it displays the Lenovo screen and then displays the Ubuntu screen with the spinning circle. When it boots it displays the login screen, however sometime ...
1
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1answer
56 views

Grub menu not showing up on boot after firmware update

After a firmware update on my laptop, the Grub menu disappeared and I can only boot on Windows 10. Machine configuration: Lenovo X1 Carbon Gen 7th shipped with Windows 10. I installed Ubuntu 18.04 ...
0
votes
1answer
26 views

GRUB issues - How to get back to windows boot manager

So I am dual-booting Windows and Ubuntu 16.04, and I have the Ubuntu partition encrypted. After updating yesterday my GRUB won't load. I tried using a live USB with boot-repair-disk but it wasn't able ...
2
votes
0answers
31 views

Failure to boot after installation ubuntu alongside windows on different disks

Description of the problem: Recently I tried to install Ubuntu alongside windows and after I finished with the installation windows doesn't boot correctly (power off option and advanced options only ...
0
votes
0answers
34 views

Grub-install keeps failing on every version and variation of Ubuntu (18.04, 19.04, 20.04, Kubuntu, Xubuntu, other Debian-based distros)

I have been trying to install any Debian-based OS for the past few days, and every single attempt gets stuck at the 'grub-install' step. Namely: Unable to install GRUB in /dev/nvme0n1 Executing 'grub-...
2
votes
1answer
236 views

Debian can boot but can't boot Ubuntu after installing it

I have a problem booting Ubuntu or any other Ubuntu-based OS. After the installation is complete Ubuntu gets stuck at a black screen. I tried to change grub and tried activating graphics from ...

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