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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Cannot boot, laptop screen doesn't work, may have broken grub

My laptop's built in screen has been out of commission for awhile, which usually isn't a problem since I use an external monitor, but the GRUB/BIOS menus don't appear on the external monitor. I was ...
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1answer
154 views

No such device grub rescue, tried many solution

I have tried to bootrepair, which gave me error this: sudo grub-install --root-directory=/mnt /dev/sda1 grub-probe: error: failed to get canonical path of `/cow'. Installing for i386-pc platform. ...
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1answer
96 views

GRUB see LVM disk with Kubuntu only after enter to BIOS

I have a boot problem. I've installed Kubuntu 13.10 from a standard image file (using the standard installer) without manual partitioning. During the set-up process I chose the option "Setup on ...
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0answers
47 views

grub2 not showing in full screen

I changed my grub2 settings to 1920x1080, but when the menu option shows during bootup, it's not in full screen (it has black bars at the top, bottom, & sides. I have a 27" monitor, and was ...
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1answer
65 views

while upgrade and installing any software got error E: Sub-process /usr/bin/dpkg returned an error code (2)

sudo apt-get upgrade Reading package lists... Done Building dependency tree Reading state information... Done Calculating upgrade... Done The following packages will be REMOVED: ...
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2answers
115 views

Windows 8 dual-boot: bootloader problem (grub)

I currently have a dual-boot system with Windows 8 and Ubuntu 14.04, on separate hard disks. I have installed the Grub bootloader using the Boot-Repair tool; however, it seems that whenever I boot ...
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2answers
35 views

LUbuntu OS and the drive on which it was installed both MISSING!

I have 2 hard drives on my machine. One 500GB(master drive) and one 40GB(slave drive). I originally had Windows 7 installed on my first drive(i.e. 500GB drive). I am planning to install LUbuntu ...
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5answers
2k views

How to use NVIDIA GTX 970 GPU?

I have NVIDIA GTX 970 GPU, which is pretty new chip and it is not recognized by nouveau driver shipped with Ubuntu 14.10, hence I am stuck on 1024x768 resolution on Full HD monitor - not so good. ...
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2answers
227 views

Install Ubuntu 14.04.1 LTS without losing Windows 7 bootloader

I want to install Ubuntu 14.04.1 LTS alongside with Windows 7. But there is one issue that if I install Ubuntu, I will lose Windows 7 bootloader and it will replace GRUB bootloader instead of ...
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0answers
220 views

After Dual-Boot, Starting Ubuntu Ends At Purple Screen

I recently dual-booted my laptop with Ubuntu 14.04 and Windows 7. However, every time I try to start Ubuntu from Grub, it ends at a purple screen and the fan kicks on high. This is also the case when ...
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0answers
19 views

How to prevent Ubuntu from installing a bootloader? [duplicate]

I want to know if it is possible to prevent ubuntu from installing a bootloader in UEFI install mode as to use gummiboot, my current boot manager which works just great for Arch. My objective would ...
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1answer
35 views

Already dual booting windows and ubuntu but want to install latest ubuntu on another hard drive [duplicate]

so currently I'm already dual booting windows and ubuntu. I've bought a new hard drive where I want to install the latest ubuntu but I want to keep my current setup whilst I make the transition to my ...
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0answers
36 views

Ubuntu GNOME on a USB 3.0 thumb drive: GRUB cannot be installed

I previously installed Ubuntu GNOME just fine on a USB 2.0 drive with the installation wizard, just like you would on a hard drive. I just bought a USB 3.0 16GB drive so that I could run it at a ...
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0answers
50 views

Can this error cause computer to reboot

There are 11 computers in my classroom. Yesterday they began to reboot randomly, all of them. I reinstalled Ubuntu and got this error everytime. Also, after reinstalling the rebooting continued. Can ...
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1answer
29 views

Triple-boot replace Grub

I'm triple booting Ubuntu, Win 7 and Arch. At present I'm using grub installed by Ubuntu. I would like to replace it by installing Arch's grub. My question is: Will Ubuntu updates break or replace ...
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0answers
49 views

grub doesn't work after dual booting win 8.1 and ubuntu 14.04 lts

Just installed win8.1 and Ubuntu 14.04 lts But the grub doesn't show at all When booting.... Also Nothing happens When I press during the booting process. It just loads the Ubuntu as default
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136 views

(Boot Problem) Error: attempt to read or write outside of disk hd0. grub rescue>

So I normally auto-boot to windows through grub because of music software incompatibilities with Ubuntu. This message (in the title) came up one day and I could never figure out what happened, but It ...
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0answers
21 views

Installing Ubuntu and get the error cp: write error: No space left on device

I downloaded Ubuntu 14.04 x64 Desktop burned it to my 16gb Sand disk USB drive. I rebooted my PC with this in and it came up with the grub 2 loader. I tried running install Ubuntu as well as try ...
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1answer
27 views

What do I select for “GRUB install devices” after an update on a VM?

This is almost exactly the same as What do I select for “GRUB install devices” after an update? - or perhaps it isn't, hence asking, as I'm running Ubuntu on a Virtualbox machine via Vagrant. I was ...
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0answers
28 views

Unable to boot into anything

I ran into the problem described here and applies the solution suggested there. Now when I start this device, I just get the GRUB 2 CLI. I'm no longer able to get onto the live CD to reinstall (even ...
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0answers
87 views

Default Grub2 entry doesn't point lastest kernel version + “selinuxfs mount failed” boot error: how to repair?

I installed Ubuntu 14.04 in multi-boot with linux (Mandriva 2011/Grub Legacy). First it seemed to work. But on my first update in Ubuntu, I was "strongly adviced" by the system to update grub and got ...
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0answers
37 views

unable to boot ubuntu after upgrade,even after changing ro to rw in grub

My os was already 14.04 but my friend did some upgrade, after which it is not booting,showing serious errors were found while checking the disk for /. I searched on internet, and tried changing ro to ...
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2answers
78 views

ubuntu bootloader doesn't detect window 8

After installing ubuntu, using something else option and installing it on a different disk than windows 8 , I starting my computer and ubuntu loaded without any boot loader. So I searched in internet ...
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0answers
35 views

Cannot mount 2 windows merged ntfs volumes in ubuntu 14.04

when my brand new Ubuntu is trying to mount my two hard drives that was merged in windows 7 I get this message: Error mounting /dev/sdc1 at /media/luttikon/Media 1: Command-line `mount -t "ntfs" -o ...
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1answer
128 views

Is it still possible to install Ubuntu to an external harddrive with UEFI?

It looks like installing Ubuntu to an external harddrive isn't possible with UEFI, where as with MBR there wasn't a big difference between external and internal. Is that true or is it still possible? ...
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1answer
49 views

How can I correct logical bad sectors in HDD in Ubuntu?

During boot time I found that my hard disk had logical errors in different sectors. I did my research and ran this command: sudo badblocks -sv /dev/sda1 > bad-blocks-result This command created ...
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0answers
169 views

apache2 doesn't start at bootup

first a short description of our environment: 1x Ubuntu 14.04 Serveredition 1x USB-Dongle for our barcode scangun 1x USB-Keyboard 1x VGA-Monitor Apache2, mysql, php5.x installed and configured ...
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1answer
47 views

I messed up university computer

I'm using university PC which is Lenovo that came with Windows 8. I want to install Ubuntu to it. I've backed the data up, made extended partition, and installed Ubuntu. I have done this before to ...
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1answer
31 views

after expanding 'Ubuntu installed' partition, I got error

I expanded the partition on which I have installed Ubuntu and then tried to reinstall grub using BootRepair and got following error: The boot files of [The OS now in use - Ubuntu 14.04.1 LTS] are far ...
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0answers
39 views

Bootable pendrive with windows 8

After formatting pendrive on ntfs setting bootable flag, installing grub and coping windows installation files to pendrive eg. win fodler how to set grub.cfg to boot windows from pendrive win folder ? ...
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1answer
95 views

Dual Boot EFI Windows 8.1 / Ubuntu

Grub 2 works fine with the Ubuntu entry, but I'm missing the Windows 8 entry. Windows 8 is on /dev/sdb with 2 partitions (sdb1, sdb2), Ubuntu is on /dev/sda. http://paste.ubuntu.com/9442112/ Any ...
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1answer
118 views

How to show boot messages in 14.10?

I am trying to show the boot messages but all I get is an almost black screen until I see the login manager. I removed quiet and splash I removed quiet and splash and added noplymouth I removed ...
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2answers
76 views

Why can't I boot from my SSD?

Recently, I bought a 250GB Samsung 840 EVO SSD. I wanted to migrate my system to it, so I copied my / and swap partition to it and ran boot-repair. The program told me I was in EFI mode so I made an ...
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0answers
64 views

using framebuffer in Ubuntu 14.04 textmode - segmentation fault

I am using Ubuntu 14.04 booting into textmode. GRUB-file: GRUB_CMDLINE_LINUX_DEFAULT="quiet text" and the following gfx setup in GRUB: GRUB_GFXMODE=0x115 GRUB_GFXPAYLOAD_LINUX=keep That means I ...
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0answers
222 views

nVidia driver update causes problem, even when reverting back

The story: A few months ago, I was able to play Civ V on my HP Elitebook 8540w without any problems. Then about a month ago, for some reason, my video driver started to have some issues. It had ...
0
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1answer
97 views

Win7 won't resume from sleep/hibernation [closed]

I read many posts about this problem, but most of them consider the user a linux expert who knows what he's talking about :/ I would really appreciate it if someone can solve this problem for a ...
0
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1answer
44 views

How to install windows 8.1 , when I have a windows 7 and ubuntu 14.04 running side by side?

Here is this , I use ubuntu and love ubuntu. So when I bought a DELL PC with pre-installed windows 8, in which I couldn't install ubuntu in every possible way I tried, I deleted the genuine windows ...
0
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1answer
53 views

How to fix Missing operating system after ms-sys

I need your help. I've uninstalled ubuntu and removed his partition from Windows 7. After I restarted I had the "error: no such partition" so I used this guide to restore the windows bootloader... ...
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0answers
44 views

Dual boot Windows will not load after installing wireless driver

On a new machine, I partitioned the hard drive equally, and installed Windows 8.1 on one partition, and Ubuntu 14.04 on the other. Both OS's booted successfully from grub. Now, my wireless adapter is ...
0
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1answer
146 views

Boot-Repair doesn't fix the boot for Ubuntu 14.04.1 LTS (trusty)

I recently installed Ubuntu 14.04.1 LTS on my laptop (Samsung ATIV Book Lite 9 - NP905S3G-K08TR). After a pure installation run into boot problem and tried Boot-Repair. Actually, boot-repair seems ...
0
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1answer
38 views

Dual boot fails when modifying BIOS

I have a Toshiba Satellite p50 with pre-installed Windows 8.1. I installed Ubuntu 14.04 and the UEFI dual-boot worked fine for some time. However, I realized that every time I make any change in the ...
0
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1answer
230 views

error: no such partition Entering rescue mode… grub rescue> ubuntu partition accidentally deleted [duplicate]

I am using Windows 8.1 and Ubuntu 13.10 as in dual boot. I have changed my disk size using disk management. accidentally I delete Ubuntu partition at all. Once I restarted the system, I am getting ...
1
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1answer
71 views

Dual boot MS Surface PRO issues

I'm trying to successfully get my Surface Pro to dual boot Ubuntu, alongside windows 8.1, using a 128gb SD card I came across a guide (Dual boot Surface Pro with Ubuntu?) and followed it, but there ...
0
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2answers
266 views

grub fails to install to MBR (RAID+LVM+LUKS)

Please note the edit at the end I'm building a home server (my first attempt at it) using Ubuntu Server 14.04.1 on an old machine (BIOS doesn't support UEFI), and I want to set up the whole system on ...
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1answer
41 views

Guidance on moving a raided / to a new set of disks

Running Ubuntu 14.04.1 up to date. Besides a ZFS pool I'm using for my data, I have my root partition on a mirrored software raid, and would like to move to two larger disks. Here is my parted ...
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0answers
48 views

After installing Ubuntu 14.04 Over windows 8.1 i'm unable to boot from my DVD Drive

Fun story, i had Ubuntu and Windows 8.1 both installed on my pc. When attempting to re install it detected Ubuntu and said if i wanted to replace that i was like ooh nice, now i don't have to change ...
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0answers
33 views

Boot issues on Inspiron M5010 when installing 64 bit Ububtu 14.04. Help!

This is my first time using Ubuntu. I bought a wiped computer from ebay and I'm just trying to install Ubuntu OS. I downloaded the software, formatted my USB to Fat 32. I used UUI and Yumi both to ...
0
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1answer
47 views

unable to boot win7 after installing ubuntu

hello i am new to Ubuntu and Linux too, Recently i replaced Ubuntu with win7 after that when i tried to install win back for using both OS i got a problem. its not installing win7 or other versions of ...
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0answers
30 views

Dual boot windows 8.1 and ubuntu 14.0 problem

I have windows 8.1 pre-installed.Then I have installed Ubuntu 14.0 Firstly in grub,windows 8 was not shown.Then I have updated GRUB and it shows the windows 8 but whenever I try to launch it.It gives ...
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0answers
13 views

Grub takes a long time to paint the screen

When I boot up my computer, GRUB is remarkably slow painting the screen. You can actually see the screen paint in real time. Why is this? I have added a GIF showing the process. The GIF actually is ...