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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Ubuntu Dual Boot second Linux Distro

I have had some trouble dual booting Ubuntu 14 with another linux distro. I have an existing Ubuntu installiation running (nothing else besides Ubuntu 14, however), and the second .iso on a live usb. ...
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Ubuntu 14.04.1 LTS does 't start after installing cuda toolkit 6.5

I have purchased new Workstation for scientific computing it has Intel core i7 4790 and the monitor working on intel hd graphics 4600 it aslo has 2 GPUs gtx 760 for computaions only after i have ...
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100 views

Black screen and later garbled screen after installation 14.04, where should I begin?

Just a foreword, this is my first foray into anything Linux related. Please forgive me if my lingo isn't up to par. I just installed Ubuntu 14.04 last night. After I removed the installation disk ...
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23 views

Boot to GNU GRUB and stops

Please read this as coming from a complete beginner. After several months of pleasure using xubuntu why does my machine suddenly decide not to boot but go instead to the GNU Grub screen and ...
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1answer
14 views

Breaks booting in Grub after turn on Ubuntu

Today, when I turn on my desktop, my Ubuntu 14.04 break and the screen stop in grub, please see the pic below And anything in my computer work, neither keyboard, mouse, and keep stop in this ...
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45 views

Problems installing Ubuntu in UEFI system

I am having trouble booting into my HDD, where I have installed Ubuntu as described @help.ubuntu.com/community/UEFI I have attempted to utilize Boot-Repair to no avail. Here is my link pasteurl link: ...
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35 views

Grub will not boot win7

Ubuntu 14.04 will not dual boot. Boots directly to Ubuntu. I tried repairing windows with win7 startup disk (bootrec /fixboot) and it appears the start up files were placed on the beginning of the ...
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17 views

Grub not booting anything

Lenovo g505s with 8.1 per installed Amd a10 processor with 6 gb or ram and 1000tb hd My files are backed up to an external had or sitting in the cloud so that's not really a problem. Shut off secure ...
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21 views

Accidentally Formatted Red Hat Linux Patition : Getting Grub command prompt

I have 2 disks on my PC. Disk 0 contains Windows 7 and Ubuntu Wubi installation and Disk 1 contains Red Hat Enterprise Linux Installation. When i used to turn on my PC, i was by default taken to a Red ...
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2answers
27 views

grub not dual booting win7

New Ubuntu 14.04 installation. Boots straight to Ubuntu. Tried repairing. Here is output of fdisk: Device Boot Start End Blocks Id System /dev/sda1 * 63 ...
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14 views

What to do with the series of randomly occurring errors?

I'll get straight to the point with this one, my laptop (ASUS G75VW) is dual booted with Windows 8.1 Pro and Ubuntu 14.04.1 and is experiencing randomly occurring errors. I don't know if they're ...
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86 views

Installed Ubuntu alongside Windows 7, GRUB isn't boot manager

When I clicked "restart now" after installation (and after I tried out Ubuntu for a bit), I was expecting GRUB to come up right away where I could choose Windows 7 or Ubuntu 14.04. However, Windows ...
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38 views

Change font colors in Grub2

I can't get the font colors to change at all; the only thing I've managed to accomplish is getting a custom background on the Grub screen. I tried grub-customizer but that doesn't work. I tried what ...
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15 views

How to deal with duplicated GRUB entries with different names?

As I told in a previous question, I was having GRUB problems with a dual boot PC with both Lubuntu and Bodhi Linux. One of the partitions (the one with Bodhi Linux) was messing with the GRUB entries, ...
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37 views

GRUB 2 error for booting

I have a Windows 7 and a Ubuntu installation. After an update today in Ubuntu, I cannot boot anymore in any system, due to this message: "GNU GRUB version 2.02~beta2-9ubuntu1 Minimal BASH-like line ...
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45 views

(How) can I avoid undesired effects of booting with “nomodeset”?

Sometimes (approximately 1 of 3 times) waking from hibernation with Ubuntu 14.04 on my HP pavilion dv6000 laptop computer ends with a black screen with backlight and the mouse pointer - in those ...
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2answers
32 views

Identify which grub menu item used when booting

Is it possible to test which menu item was used to start the system. If the choice of kernel was different i can for example do this in my login script if uname -r | grep -q lowlatency; then ...
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35 views

ubuntu grub rescue no loaded kernel

I backup my system by tar. And then tar -cxvf the backup file on the another disk ,Start the computer into the grub rescue,error: not found /boot/grub/i-386/normal.mod。 then I did: grub rescue > ...
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1answer
57 views

Windows 8 and Ubuntu in UEFI mode - Ubuntu only boots when entering Windows 8 first

I have a problem, which is that the only way to start is when I start Ubuntu 14.04 Windows 8 first then (Shift + reset) and enter to boot from USB and Ubuntu there appears, after selecting newly see ...
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114 views

Safe to manually remove old 12.04.2 LTS GNU/Linux 3.2.0-70-generic after upgrade to 14.04.1

After do-release-upgrade from Ubuntu 12.04.2 to 14.04.1 and reboot, - server still start up in 12.04.2 LTS. Is it safe to manually remove old 12.04.2 LTS (GNU/Linux 3.2.0-70-generic in /Boot ?. I do ...
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1answer
101 views

Cannot repair grub using, boot-repair fails without reason

It just shows that error happened and gives link for log: http://paste.ubuntu.com/8585646/ Tried to disable/enable WinEFI backup, putting boot in Legacy and UEFI mode. In UEFI mode not worked at all ...
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1answer
50 views

Ubuntu W8.1 Dualboot is not working - Only w8.1 boots

I know this topic was discussed here a lot but I didn't manage to work dualboot on my laptop. I have HP laptop with pre-installed Windows 8.1. Today I tried to install Ubuntu to partition. I followed ...
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56 views

Install Ubuntu 14 from bootable pendrive USB [closed]

I have tried to Install Ubuntu 14 from bootable pendrive USB on specific partition of a Local hard drive. the previous GRUB boot screen dissapeared so how can i fix that (boot manager is gone). ...
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1answer
47 views

Grub Installation Problem using Ubuntu Mini ISO

I have a problem when using the Ubuntu Mini ISO. It defaults installing grub on /dev/sda but that's my USB Flash where I'm installing Ubuntu from. How can I change that to /dev/sdb which is my actual ...
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53 views

GRUB missing after 12.04.2 LTS to 14.04.1 ? Server

After upgrade from 12.04 to 14.04.1 the GRUB is wrong/missing. I looking for a command for repair of this missing GRUB - mount volume. sudo mount /dev/sd*xx* /mnt I do not understand what volume ...
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27 views

BIOS boots then black no sign of os

I installed 14.04 3 days ago and it worked perfectly. Then I foolishly tried to install my Monitor drivers (HP My Display-though it probably shouldnt make a difference because the BIOS config still ...
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21 views

Awkward Dual Boot Problems

I had Ubuntu installed alongside with windows 8.1 using Luis Alvarado's answer. It worked for several days fine (grub was appearing) but yesterday I changed some setting regarding power in ...
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27 views

My server only booting on rescue mode

I have recently purchased a dedi from oneprovider everything went smooth I ordered an extra IP for the same server it was delivered, then after installing web server and control panel I performed a ...
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1answer
71 views

Dual boot Windows 7, Ubuntu 14.04 - can not load Windows

Good evening, after installing Ubuntu 14.04 as a dual boot with till now working windows 7, I can not boot windows. When I try to, a black screen appears and tells me to insert the windows ...
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19 views

Where should I install grub2 on external hard disk when System(Ubuntu) partition is NOT on the FIRST partition of external hard-drive?

I have installed Ubuntu 14.04 on my external USB hard disk (/dev/sdc). The partitioning of the device is something like this: /dev/sdc /dev/sdc1 -- 1 GB (FAT32, Empty) /dev/sdc2 -- 100 GB ...
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1answer
45 views

How do I recover Windows 7 on my Grub menu, Ubuntu 14.04

I duel boot Ubuntu 14.04 and Windows 7 (Windows being installed first) and a couple days ago I jumped on to Ubuntu to check for updates and after it updated, I found that the Windows option had ...
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47 views

How to load a different version of linux kernel?

I am currently using ubuntu 14.04 with the kernel 3.13.0-37-generic, I want to try booting from another kernel 3.17.01 (latest stable release). I have downloaded and built the 3.17.01 kernel from ...
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155 views

Ubuntu BusyBox initramfs Error 14.04

Suddenly after shutting down Ubuntu and when reopenning, I get prompted to one shell of BusyBox. I only had a set of options in help there. I tried to follow this solution: Boot drops to a ...
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1answer
57 views

Computer boots automatically into GNU GRUB, no other options

Currently, when I start my computer, this screen is shown. I do not have any other options, it boots into this within a second of starting my computer. I used to have Windows 8.1 dual booted with ...
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181 views

Dual boot Windows 8.1 / Ubuntu 14.04 on two separate HDDs

So got a new PC (Dell 3847) and swaped the 400w power supply from old system to replace 300 W one and picked up a NVIDIA GeForce GTX 750 Ti graphix card. I would like to use the 1 TB HDD in my old PC ...
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83 views

Windows 8 entry missing in grub2 after installing ubuntu

As my ubuntu 14.04 broken, I have reinstalled it. After that am not able to boot to windows 8 on my HP laptop. I can see all the windows 8 files and other partition data in ubuntu login. I have tried ...
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17 views

Error during installation Ubuntu (dual-boot wit Win 8)

I have an error during installation of Ubuntu(14.04) by USB, i install it next to Windows 8 (dual boot). I disabled FastBoot, SecureBoot. I had to put on the mode nomodeset to avoid black screen. The ...
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17 views

Grub is not working

I am trying to get my grub to work again, I run a dual boot with windows 7 and ubuntu 14.04, the grub has been working fine up until just recently when I ran a windows update and it seems to have ...
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51 views

Windows Gone & No Grub after Ubuntu Installation

I installed Ubuntu 14.04.1 LTS on my PC which already had Windows 8 running. I followed the steps as instructed in: http://itsfoss.com/install-ubuntu-1404-dual-boot-mode-windows-8-81-uefi/ Like it ...
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67 views

Can't put windows on a flash drive, even with dd, winusb and unetbootin

How can i install my windows 7 iso to a flash drive? dd seemed to have worked, but when i booted it did not work, saying grub: no such partiton Which is odd, considering i did not remember installing ...
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1answer
17 views

Would it work if I put grub2 boot mount on mbr hdd and the rest on gpt on non-UEFI

Would it work if I put grub2 boot mount on mbr hdd and the rest on gpt on non-UEFI
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19 views

Ubuntu login page doesn't load

my Ubuntu 12.04 doesn't load the login page anymore. I'm using it in double partition with Win7 and after I select Ubuntu from the grub, it only appears the preliminary loading and then black screen. ...
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1answer
61 views

Can not see C drive ( windows installed ) in list of devices in Nautilus

Let me tell how the problem started. I needed more free space for D drive, so i extended free space for D drive from C drive by using the the function EXTEND of Mini Partition Tools Wizard. Then the ...
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32 views

Black screen in ubuntu 14.04 installation

When I am trying to install ubuntu 14.04 from USB stick, and then selecting on 'Install Ubuntu' option leaves me on black screen with prompt. My system configuration OS: Windows 8.1 64 bit AMD A8 ...
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1answer
21 views

efibootmgr output is not clear (incomplete)

I recently installed ubuntu 14.04.1 in my surface pro. During installation i encountered a few problem with uefi. Now i'm trying to fix the boot process but efibootmgr gives me incomplete output: ...
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40 views

How do I remove ubuntu 14.04 on /dev/sda6 installed alongside ubuntu 12.04 on dev/sda1

I did a silly thing. I installed Ubuntu 14.04 alongside Ubuntu 12.04. I want to get rid of ubuntu 14.04 (dev/sda6). Here is my gparted: How do I remove sda6 and merge it with sda1 in ubuntu 12.04. ...
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139 views

ERROR: No boot disk has been detected or the disk has failed

I've acer-pc which had at the beginning installed oem windows 8 or 8.1 x64. Later I wanted to install custom ubuntu. I checked oem/normal/x86/x64, other windows installations. I've installed os even ...
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16 views

How do I just install Ubuntu, and not Grub? [duplicate]

I just personally don't like the grub boot manager, and I still want Windows to be my main operating system. I tried using the "Wubi" installer, but unfortunately, I had all these errors. I also don't ...
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1answer
175 views

ubuntu 14.04 Grub Rescue error

So I installed linux (ubuntu) yesterday on a fresh hdd with a disk. It worked fine till today when it froze after I had had it in sleep mode and I had to turn it off and on again to be greeted with a ...
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97 views

GRUB2: black screen when booting Windows

I know this might be a duplicate, but I've read a lot of threads about this and none pointed me to the solution. When loading GRUB2 I have a black screen (with static white cursor on the upper left) ...