GRUB2 is the next generation of the GRand Unified Bootloader (GRUB). Ubuntu has used GRUB2 as the boot loader since 9.10 (Karmic Koala). Commonly referred to as simply "GRUB".

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white screen on new install 14.04 reboot

I have a problem with Ubuntu 14.04 on a Toshiba Satellite laptop C55-B5201 I had 1st installed Ubuntu 14.04 and it ran OK but after an upgrade in early February, it began to have a white screen with ...
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5 views

Docker warning on cgroup swap limit, memory.use_hierarchy

I am getting this warning from 'sudo docker -d': WARNING: Your kernel does not support cgroup swap limit. even after following the steps (as in this link): modify below lines in ...
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1answer
23 views

Remove Grub from its own partition

Some time ago I installed Ubuntu alongside Win8 and didn't like it quite much but decided to leave it installed. Now I wanted to delete it and as I've already had problems before uninstalling ubuntu ...
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83 views

Why do I get a rainbow screen after booting?

I'm trying to expand the partition of /dev/sda1 on my Ubuntu VM but after I put the Ubuntu.iso onto a USB stick(I didn't put it in the laptop at the time), I got the boot menu. I clicked Ubuntu, then ...
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10 views

my live usb has error Grub Rescue

my issue is NOT ubuntu 14.04 LTS installed on HDD. my issue is live usb getting error on boot "no such device: ..... grub Rescue > " i know people say just format and remake whole live usb again. i ...
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8 views

GNU Grub Ubuntu

I am totally new to Ubuntu .I have few problems. First one is,when I start my PC there shows up a purple screen with "GNU GRUB" and there are some options to choose "Ubuntu RAM,Ubuntu,Advanced ...
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1answer
24 views

GRUB Won't load after instaling Ubuntu 14.04 on Windows 7 Dell Inspiron 3537

I bought this laptop from Amazon, which is a Dell Inspiron 3537 with a Windows 7 OS. It DID have Windows 8 before it, the company which was the supplier obviously changed the operating system. I ...
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49 views

A very unique problem

I tried starting up my personal computer today, only to find that it had serious difficulties. I found out that a younger brother had started it up once, and at some point during the boot up had typed ...
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9 views

Since last update: Splash broken

fellow Ubuntu Community! I am facing an issue with the splash-bootup screen on my notebook. Since one of the last updates, the splash screen is no longer showing the Ubuntu-logo and the glowing dots, ...
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10 views

Grub halts on menu until enter is pressed

I have installed an Ubuntu server and it stops on the Grub Menu until ENTER is pressed without timing out and using the default entry. At first I thought that the problem was due to a reboot after a ...
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6 views

creating a bootable partition that's recognized as a flash drive

currently I am running windows 7 but I have run different versions of Ubuntu in the past. I am looking to get back into running this fantastic OS with macbuntu, it looks nice and runs well in virtual ...
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1answer
442 views

Why is there an “update-grub” and a “update-grub2” command?

I updated my linux machine (dist-upgrade) and the linux-headers were updated. Suddenly the Windows option in GRUB was gone (booting parallel). This was solved by issuing "update-grub" everything works ...
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1answer
18 views

How to make changes in bootloader?

Hi I have an assignment to complete and my teacher has asked me to make changes in my boot-loader so that when my system boots there is an option of "Welcome Sarah". I have dual boot set up in my ...
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5 views

wn-block (0 , 0) call trace install

I have big trouble with my PC. i have dual booth ubuntu and windows 7. When i'm recovery my windows 7, i got grub rescue boot. When i boot from USB which contains Ubuntu operating system, i am seeing ...
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0answers
14 views

I have Ubuntu installed, but im stuck at the GNU GRUB menu.

When installing Ubuntu onto my Toshiba Satellite C55D-B5319, it told me to eject the boot cd then restart, but i didnt remove the cd, and restarted anyways. Now it brings me back to the GNU grub ...
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1answer
25 views

I accidentally didn't remove the installation disk while installing ubuntu, and now it won't install. How can i fix it?

After installation, it said to remove the installation disk and restart, but the disk tray wouldn't open. So i restarted anyway, and now it brings me back to the install screen everytime i try to ...
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21 views

Ubuntu installs on my laptop, reboots, and brings up the install screen again. How do I fix this?

It brings up the "GNU GRUB version 2.02~beta2-9ubuntu1" screen that gives the options to Try ubuntu without installing, Install Ubuntu, OEM Install (for manufacturers), Check disc for defects. ...
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0answers
22 views

Dual Boot Ubuntu without touching windows installed on another drive?

I recently installed Windows 8.1 on my 250GB SDD. I still have my 1TB HDD with an older version of Windows 8.1 and files that I use (like Documents and Games), the 1TB HDD is basically just a files ...
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0answers
20 views

Cant boot to Kali linux [on hold]

I have installed the operating system successfully on my laptop that has Win 8.1 pre-installed. (With this guide) After restarting the computer, windows 8.1 loaded instead of grub bootloader, so I ...
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1answer
30 views

Installing Ubuntu 1st Time, Fatal Error with Grub

I am new to Linux and this is my first time trying to install Ubuntu. Six hours in, and I have not yet succeeded. Any assistance would be greatly appreciated. I am trying to install Ubuntu on a ...
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0answers
7 views

Two different boot screens (GRUB) for Ubuntu live?

This is the usual Xubuntu 12.04 Live USB pendrive boot screen (GRUB, I presume): But sometimes, even when booting from the same pendrive, I get this other: This strange behavior only happens for ...
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13 views

How do I debug GRUB_TIMEOUT?

As described here: Grub menu not waiting despite of GRUB_TIMEOUT=10 Adding this line to /etc/default/grub fixes the problem: GRUB_RECORDFAIL_TIMEOUT=10 But why does grub fail in the first place? ...
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1answer
44 views

Unable to boot Ubuntu 14.04 on Acer E3-112 laptop

I recently installed Ubuntu 14.04 64bit on an Acer E11 laptop (model E3-112). The installation was successful. However I cannot boot Ubuntu. It directly boots to windows and does not even shows Grub. ...
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10 views

grub cursor position

after an incident that happened years ago caused by tee, my "down" button didn't work anymore. Now I want to set my cursor position in to the bottom. My Aim is that I can use the up button to choose ...
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15 views

Debian Wheezy ISO install breaks boot for Ubuntu distros

I installed a new Wheezy from an ISO flash drive. All seemed to go well, until I tried to reboot. Wheezy had dropped my password, so I couldn't open it up, and my two Ubuntu installations (I believe ...
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1answer
42 views

windows 7 booting in background but shows the grub screen of UBUNTU 14.04 wallpaper in distorted way

I dual booted my HP Pavilion 15-n012tx (which was pre-installed with Windows 8 pro) to Windows 7 and Ubuntu 14.04 Trusty Tahr. Booting them was fine with no errors. Installed Windows and Ubuntu in ...
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21 views

Windows 7 does not boot after removing Linux [duplicate]

I recently removed ubuntu to install windows 7. However, even if my Windows USB detectes my ssd in order to install my OS in it, it does not boot from this disk after the installation finishes (after ...
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0answers
7 views

GRUB not showing on cold boot but on warm boot

I have a duel boot Windows 8 + ubuntu 14.04 (EFI), but what is happening now is I am booted directly to windows when I first start my computer or restart from ubuntu. I can see my grub only when I ...
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1answer
24 views

GRUB cannot find the ISO image on the hard-disk?

I have an old computer with Kubuntu version 10.10. I want to install the latest version and followed the instruction according the post Install Ubuntu from ISO image directly from hard disk of a ...
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0answers
18 views

Backup ubuntu completely, reinstall os and then restore it exactly the way it was

I recently got a new graphics card and I want to have windows on my computer to play windows only games in my steam library. I currently have Ubuntu 14.04 install and perfectly configured and has all ...
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1answer
134 views

Install Ubuntu 14.04.2 LTS alongside Windows 8.1 Dual-Boot on RAID Acer S7 question marks installation popup error “???”

I bought a new laptop and wanted to install Ubuntu alongside Windows 8.1 on it. After many an attempt and weeks of troubleshooting installation and booting problems, I finally found a solution for my ...
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2answers
25 views

Help reverting changes to GRUB

Okay, so I tried to use this fix for my blackscreen when going into tty command line sudo sed -i -e 's/#GRUB_TERMINAL/GRUB_TERMINAL/g' /etc/default/grub This did not fix it, but I found something ...
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11 views

Use fdisk -s, can not boot up

First I want to resize partition of my Ubuntu 13.0X, I run three commands: fdisk -l fdisk -s /dev/sda1 reboot -r Then I realize I should copy some important files in system in case losing. But ...
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18 views

Ubuntu keeps putting itself in EFI?

I gave Ubuntu a go today, but I found out it wasn't really my thing. But for some reason, I cannot seem to delete Ubuntu's EFI file (grubx64.efi) as whenever I try to delete it, using methods such as ...
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10 views

How to make Ubuntu 14 more tolerant of power cut

We are developing an industrial machine running Ubuntu 14, with no keyboard or monitor. We have found that if power is lost during boot then at next boot the boot sequence waits for a keyboard entry ...
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0answers
11 views

After install I got “no such device”, now what do I do? [duplicate]

After installing from a USB stick in a way that would enable either Windows or Ubuntu to boot, I get "error: no such device: " and it puts me into rescue mode. What can I do to get the boot record ...
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1answer
24 views

Migrate root filesystem from btrfs to ext4

I want migrate a Ubuntu installation off of btrfs as root because it frequently hangs and causes out of space errors and I really don't need the snapshots. The partition was created empty and not ...
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0answers
11 views

Cannot boot to Ubuntu, Powercap/SELinux Issue

I am running Ubuntu (well, Lubuntu, really) on my home server, and all was tickety boo until a few days ago, when the OS stopped booting. Not being able to SHH in anymore, I hooked it up to a monitor ...
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1answer
15 views

how to do I force-yes on fsck

I have bunch of headless ubuntu server instruments. When various hardware changes happen sometimes we get this error. I'm guessing it was a motherboard replacement that had a slightly different RTC ...
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0answers
32 views

How to add Windows 8 grub entry?

I've installed Ubuntu 14.04 as a dual boot with Windows 8.1. But my PC directly boots into Ubuntu. That is why I did a boot-repair->recommended repair. But all I got was grub menu with an option to ...
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0answers
31 views

Grub Bootloader installed twice while dual booting ubuntu and windows 8.1

This is an odd situation: I bought a brand new hp desktop that came with windows 8.1 installed. I used the automatic option in the Ubuntu installer labeled "install alongside windows". It all ...
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0answers
27 views

Boot into Busybox instead of Lubuntu

I am using Lubuntu OS on a virtual machine (VMWare Player). Today, my VM was booting into the GNU GRUB version 2.02 instead of Lubuntu as usual. I was following this instructions and now I'm stuck at ...
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2answers
35 views

I upgrade lubuntu 14.04 after upgrade I get ubuntu and fail system

i working with linux long time, but this situation is for me big surprise. Actually running on Lubuntu 14.04 LTS. After writes this command: sudo apt-get upgrade, in terminal all worked right. But ...
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3answers
47 views

GRUB not showing windows 8.1 already installed

Actually there is a similar question on the community before as well but what I am facing is a different problem. Also there the person has not properly posted the status of his grub. Actually I ...
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1answer
27 views

Problems installing and dual booting Ubuntu 12.4, 13.10, and 14.4.1 via pendrivelinux?

All righty, I am a bit new at this, so bear with me. I've been using windows for a long time and have a decent amount of know-how with it's interface, and I decided I wanted to try out some different ...
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9 views

USB GRUB boot HDD -or- The Upgrade parachute

I have a question... I'm upgrading my laptop's HDD to an SSD. Starting basically from scratch (just backing up and partially transfering /home and stuff), but there's software I have installed (such ...
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1answer
27 views

GRUB not installed correctly by ubuntu server manual process?

symptom: can not boot from SSD after installing ubuntu server 14.04. BIOS menu keeps returning back. No dual booting. setup: Lenovo T430s with windows 8 preinstalled. BIOS boot menu supports both ...
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0answers
34 views

Dual boot - Ubuntu Live makes Grub disappear - Windows 8.1 with Ubuntu 14.04

I have setup a dual boot (Windows 8.1, Ubuntu 14.04 with LVM) with the Grub menu having Windows as default, working just fine. However, every time I need to boot again from Ubuntu CD live, it messes ...
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0answers
41 views

Can no longer boot after a restart

I was prompted to restart my computer to install updates and when I did, I found myself staring at the grub rescue prompt. I have tried boot-repair, but it gets hung at "purging and installing last ...
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0answers
25 views

I have to go through grub and windows bootloader to get to windows, can i change this?

I got a new SSD,on which i installed Windows 8.1, and had Ubuntu on my second hard drive .Now when I boot up my computer boots to GRUB where I can either boot to Ubuntu or to Windows. If I click ...