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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Grub timeout does not work with hibernation in 15.04

Before installing 15.04 this worked fine, now grub timeout works only if I restart, if I hibernate and then turn the computer on there is no timeout and grub menu is displayed indefinitely. How can I ...
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26 views

Install from ISO image on the same hard drive

I am working with the assumption I have a computer with a single hard drive, no USB connectivity and no access to external disks (no optical, diskette or network drives). No PXE either, of course. ...
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2answers
25 views

I want to dualboot Windows 8.1 and Ubuntu 14.04

I want to dualboot Windows 8.1 and Ubuntu 14.04, can someone please show me every step for doing so. Please don't send links to videos, just type it for me please. I want to dual boot on one single ...
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11 views

Screen flickers for a second during boot up

I am running dual boot with windows 8.1 and elementary os freya on my Hp laptop. During boot up, after I select the OS in my grub menu and before the elementary icon loads (boot splash), the screen ...
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75 views

Help creating Custom Grub2 Entry for Parted Magic 2015 (Have working 2013)

I love parted magic, I want to be able to use the newest version. I got my custom entry from Help Ubuntu and tweaked it a bit to my system and made it simpler. It works with the version from the ...
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1answer
80 views

Boot-repair: Can't boot ubuntu in uefi mode

I am aware that there are many similar questions in this site, but none of the seems to solve my problem. I've been trying to install ubuntu 14.04 alongside a preinstalled Windows 8.1 in a toshiba ...
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1answer
25 views

Grub does not show up at start, cannot select older kernel

I just built a newer kernel and tried to install it. I use a script (which I have successfully used before) to that effect. Now the kernel won't start. It shows: Loading Linux <my version ...
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22 views

windows keeps rebooting when starting

just two hours ago I turned off my Toshiba laptop and everything was fine. I turned it on again and tried to choose Windows from Grub (since I have dual booted Ubuntu with Windows). this happened to ...
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21 views

Dual Boot Slows Boot Time

Boot into Ubuntu has become very slow. Boot speed was acceptable when triple booting into Ubuntu 15.04 (sda), Windows 7 (sdb) and Emmabuntu (sdc). Booting to Ubuntu became very very slow after ...
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26 views

GParted Boots to Grub Console

I've made a GParted live USB and it boots into grub console mode instead of the GUI boot menu of GParted. Doing anything wrong? Edit: Could it be possible that this isn't the boot menu from GParted ...
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36 views

Ubuntu startup problem after installation

I recently purchased HP 14-V230TX model and I install Ubunt v14.04.2 LTS using separate partition. After installation, it doesn't show choices of OS to choose. I tried to boot using F9 but it only ...
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1answer
88 views

Moving to an SSD

I'm moving from a 1tb HDD to a 500gb SSD. On the HDD I have a 600gb partition for Windows and a 400gb partition for Ubuntu. On the SSD I have a 150gb partition for Windows, and a 350gb partition for ...
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1answer
27 views

Dead ID pin on DELL AC adapter, how can i run the CPU on 100% anyways?

I have a Dell D430 with Lubuntu 14.04 (if i'm not wrong about the version) installed. My power adapter failed with its ID pin, but it's powering the unit. I don't care of charging the battery, it will ...
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1answer
63 views

14.04 Upgrade triggers grub-pc failure

My problem begins with an upgrade from Ubuntu 12.04 LTS to 14.02 LTS. As part of this I received several error messages about not being able to remove old kernels. When first booting into 14.02, I ...
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37 views

update-grub shows “No volume groups found”

Whenever I run sudo update-grub in a terminal, I get the following output: Generating grub configuration file ... Found background image: /usr/share/images/desktop-base/desktop-grub.png Found ...
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50 views

Change TTY resolution in 15.04

I am trying to change the resolution of the TTYs (the ones reachable with Ctrl+Shift+Fn) on Ubuntu 15.03. I have consulted these sources: ChangeTTYResolution Higher resolution when switching to tty ...
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2answers
52 views

I accidentally put grub on my hard drive MBR while trying to install Ubuntu on an external hard drive

I was trying to install Ubuntu to an external hard drive, but in the installer I accidentally chose to put grub on my internal hard drive MBR instead of the external hard drive's MBR. I don't really ...
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23 views

Trouble with Computer I just loaded ubuntu on

I had an old pc that wass missing bootmngr (HP pavilion dv6) so wiped the memory and put unbuntu 14.01 LTS and after a lot of trouble got it working. I shut it down and went to turn it back on and it ...
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1answer
33 views

GRUB 2 “The current input timing is not supported” on Ubuntu 14.04

I have monitor DELL u2412m, on my machine Ubuntu 14.04 and Windows 8.1 are installed. BURG didn't work, I wanted to fix it, but with no luck, instead I messed that up and computer just rebooted again ...
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1answer
54 views

Why do I have to reboot my pc twice before I see the login screen?

I've been a Windows user for 22 years, but about 6 weeks ago I moved away from Windows and now only run Linux Ubuntu 14.04 on my pc. The issue I have is that every time I start my computer and it ...
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1answer
35 views

Problems installing Ubuntu 14.04.2

I'm a windows user, and till now we were using oncloud 8.0 on Windows 8 Server, but there is no more support, for this reason, now, we are going to try to configurate a linux server and owncloud. For ...
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0answers
39 views

Windows on one drive and Linux on the other

I have an 80Gb drive that I installed Windows on, and a 1Tb drive that I installed Linux on. I forgot to disconnect the 80Gb drive when I did the install of Linux, and it wrote files to the 80Gb ...
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26 views

“no such partition” usb boot

After a fresh install of ubuntu 14.04 LTS, I was trying to mess with my partitions and ended up deleting my ubuntu partition. This killed grub, and I can no longer boot to hard drive. I tried to ...
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1answer
25 views

Unknown Partition Table Error on Boot Randomly after Reboot: Conflicting Device Mode

I get an error on the boot that I took a screen shot below. Also the output of the fdisk -l command is shown. sda: unkwown partition table is the error. And then conflicting device mode. I am running ...
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3answers
29 views

Dual boot with two separate drives

I currently have my computer setup dual booting ubuntu and windows 8.1. Both operating systems are installed on separate physical drives. My question is that now I have a new laptop (which I will be ...
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1answer
93 views

Ubuntu server 15.04, Only can boot in Recovery mode (display -UNCLAIMED)

I am a newbie to the Ubuntu, I have just bought an IBM X3100 M5 and installed Ubuntu 15.04 via USB drive. Everything is smooth during the installation process, after the installation done i was asked ...
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2answers
48 views

Deleted Partition, Broke Grub

I had Ubuntu 14.04 LTS on my system, fresh install from a live USB. I was messing around with partitioning, trying to set up room for windows. Ended up deleting my ubuntu partition and rebooted. Now ...
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1answer
36 views

I cannot run Windows without connecting the flash drive in which linux was installed

I've installed Linux into my flashdrive from another flash drive while windows 7 is running. When I start up my computer with the flash drive in which linux installed , it appears 4 options ( Linux, ...
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0answers
36 views

Unable to install GRUB in dev/sda, two hard drives, Windows 8 on sda

I have a N751JK ASUS notebook with Windows 8.1 pre-installed. I am trying to install Ubuntu 14.04 on my second hard drive, but the installation is failing with this error message: Unable to install ...
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0answers
21 views

3.16.0-39 and 13.16.0-38 cause my computer to reboot into Asus express gate. Ubuntu 14.04

I recently bought a new hard drive because of corrupted data on my last hard drive related to SATA errors. That is another story (I hope). My new hard drive was working fine running a fresh install ...
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0answers
14 views

Stuck on GNU grub after pressing F8 when booting

I pressed F8 while booting and it somehow messed up grub and now it's stuck on gnu grub and I don't know how to fix it. I put Boot Repair on a flash drive, but it didn't have a repair option, would ...
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34 views

Simply and friedly tutorial about grub2 command

looking straight constructed an example that describes how many commands for grub2. Perhaps there is an index for grub2 command along with a description and example? I have been really sick of people ...
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1answer
29 views

Ubuntu 14.04 Crashed and I don't know how to get back

Ubuntu 14.04 crashed and I don't know how to get it back. I'm stuck on GNU GRUB version 2.02~beta2-9ubuntu1.2. I've tried going to Advanced Options and choosing a recovery mode, but to no avail. What ...
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0answers
29 views

after pm-hibernate my computer won't boot

i wanted to test hibernation on my dell inspiron M5110 laptop. this laptop is setup to dual boot windows 7 professional en ubuntu 15.04 after setting my laptop to dual boot that and selecting ubuntu ...
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1answer
36 views

No boot loader is installed in the MBR of /dev/sda. Is that some pain to a only Win8.1 system?

After I made a dual-boot (Win8.1/Ubuntu 14.04) I wanted to remove Ubuntu. I am a really newbie guy at this. First I deallocated the Ubuntu partitions at Win8.1 and joined them into the Win8.1 OS ...
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0answers
13 views

How do I add a user in Ubuntu Core? (I can boot but cannot login or root)

I just got an instance of Ubuntu Core 15.04 running on a 16 gig thumb drive. I can boot two ways: The first is via recovery mode. This is nothing like Ubuntu's GRUB2 bootloader. Instead, it says ...
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1answer
53 views

In ubuntu 15.04, boot-repair running forever

To reproduce my problem [of accidentally deleting all the kernels] Delete all the kernels Try to fix the problem with boot-repair from live USB LVM enabled Pastepin link is here Please help me ...
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0answers
40 views

After Ubuntu 15.04 Upgrade, Black Scren When Booting From rEFInd or Other Linux OSes

I am running an Acer laptop from 2013 [will add in here when I find the model number] and I initially installed Ubuntu 14.04, then 14.10, and afterward 15.04. Before this, rEFInd and any live USBs ...
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1answer
38 views

grub can't find my windows install

I just added a new SSD to my laptop. I installed windows on it, and booted into windows, and all is good. Then I installed Ubuntu 14.04 on my second SSD, reboot, and no grub menu! I installed some ...
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2answers
105 views

Link to restart from Windows to Ubuntu

I have standard dual-boot system: Ubuntu and Windows. Grub is configured to launch Windows by default. Is there a way to create some kind of link in Windows, that would: restart Windows boot into ...
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1answer
24 views

“Error: Unknown filesystem” on all my drives on Grub rescue

I was trying to start my computer in Windows safe mode and ended up pressing F8 before selecting Windows in grub instead of after and now it's stuck in grub rescue. I looked up how to use it to make ...
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1answer
27 views

Ubuntu installer stuck at “configuring boot loader…”

I dual-booted my windows with Ubuntu 14.10 Due to some failed upgrades, there was something wrong with most of my drivers... The sound wasn't working eventhough the speaker test works and the wifi ...
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0answers
6 views

On mini Mac, after install of 14.2, the pass-phrase for encrypted drive is not accepted. But also I can not boot from install media anymore

I have checked how to enter my pass phrase with different keyboard-layouts after having read the listed issues with this error. However I still can't get through. I can no longer boot the mac with ...
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0answers
11 views

Unknown filesystem on all my drives on Grub rescue

I was trying to start my computer in Windows safe mode and ended up pressing F8 before selecting Windows in grub instead of after and now it's stuck in grub rescue. I looked up how to use it to make ...
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1answer
27 views

Broken links after kernel upgrade

After running: sudo apt-get update && sudo apt-get dist-upgrade And upgrading my kernel as well as some other stuff and then running this twice with a reboot after each running: sudo ...
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2answers
58 views

How do I use GRUB rescue?

So when I was starting my computer, I pressed F8 and then it said there was no such partition and now it only shows GRUB rescue. How do I fix GRUB to run normally again?
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1answer
35 views

GRUB menu does not show after shutting down and restarting from Ubuntu on a Sony Vaio with pre-installed Windows 8 dual-booted with Ubuntu

I have installed Ubuntu 15.04 with Windows 8 on my Vaio. When I shut down from Windows and start the laptop, I get the GRUB menu and can select between booting with Windows and Ubuntu. However, after ...
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1answer
30 views

automatically switch the boot order in grub2

I have Ubuntu 14.04 Server and Ubuntu 14.04 Desktop installed. My task is: restart running Ubuntu Desktop (with crontab) boot into Ubuntu Server do backup etc. restart running Ubuntu Server boot ...
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1answer
25 views

How do I get rid of GRUB without formatting my HDD

I couldn't find an answer to my question so I thought I would ask my own. Today I tried to install Kali Lunix from a USB drive. I WAS running a dual boot with Ununtu and Windows 8.1. Every time I ...
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0answers
42 views

Ubuntu Won't Boot After Upgrade From 14.04 To 14.10; Not Even in Safe Mode

I've tried endlessly to find a solution to my problem, but nothing works. I guess my situation is a bit different. When I boot, it gives me the normal Ubuntu startup screen with the different boot ...