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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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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38 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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0answers
15 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
71 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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2answers
46 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) ...
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1answer
81 views

Trying to install Ubuntu to a USB HDD with Windows 8 on internal? Need confirmation

I am trying to make sure that Ubuntu will install correctly and boot from a USB HDD. Windows 8.1 is installed on the primary internal 1TB, this is a 230 GB (after all extra was taken out). If I were ...
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0answers
16 views

Cloned my harddrive to a SSD, SSD will not boot, suspect GRUB problem

Wanted to replace my laptop internal harddrive with an SSD, and not lose, or have to rebuild all my configuration info, etc. Cloned the harddrive to the SSD with Acronis True Image HD, which warned ...
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70 views

Adding windows 8.1 entry in Grub2

I am completely new to Ubuntu and have a problem getting dual boot with win8.1 working. I can boot both installations as UEFI boot, manually changing disk boot priority in BIOS, Grub menu is showing ...
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1answer
202 views

“Package linux-image-generic is not configured yet.” Error

When I try to upgrade via terminal sudo apt-get upgrade this errors occurred: Reading package lists... Done Building dependency tree Reading state information... Done Package ...
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1answer
52 views

Ubuntu 14.10: cannot find 25_custom in /etc/grub.d

I am following the following tutorial: Dual boot Surface Pro with Ubuntu? When I want to create my custom bootloader I need to edit a grub script (among other ones) called 25_custom. But it's not ...
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27 views

Operating System Not Found when creating Windows install USB [closed]

I'm currently on Ubuntu 14.04 and am trying to reinstall Windows. I've tried just about everything. Universal USB Installer, Unetbootin, using the dd command in terminal, nothing has worked. I have ...
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1answer
26 views

.efi can't boot when Secure Boot is enabled! do I need to get it signed?

I was told that the reasone why the .efi (of grub 2 complided by myself) files can't boot Windows 8 which has enabled secure boot was that it hasn't been signed by some code digning certificate, such ...
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0answers
14 views

on fakeraid, could not mount / at boot, then boots to purple screen

I'm running Ubuntu 14.04 beside Windows 8 on an Asus UX51VZ-XB71 which comes with two SSDs configured in a fake raid-0. I can install 14.04 successfully by booting into the live usb, assembling my ...
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0answers
11 views

Problems booting after moving from Ubuntu 12.04 from one HD to another

I recently tried to move my Ubuntu 12.04 OS from a smaller hard drive to a newer one by following, for the most part, the instructions described at ...
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0answers
31 views

Reinstalling with ubiquity without reconfiguring grub? [closed]

I have grub booting in efi mode and /boot in a separate partition. If I run the ubiquity installer with the skip bootloader option ubiquity --no-bootloader and make sure my UUID's don't change (i.e. ...
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1answer
30 views

Windows 8.1 is not showing up in grub2 menu

I have a Toshiba Satellite C55 Series Laptop. I decided to install Ubuntu because I love Android. When I installed Ubuntu there was a Windows 8 option, but after I restarted my laptop windows 8 option ...
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1answer
48 views

Dual boot Windows 8.1+Ubuntu12.04 - can't boot on windows

I got a Toshiba Sattelite S70-b-110, with windows 8.1 pre-installed. I partitioned my HDD into 4 : C:/ (Windows install) ; P:/ (Windows Data and installed programs) ; Ubuntu install (/) ; ...
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1answer
72 views

Uninstalled Ubuntu 14.04, can't boot Windows 8 stuck GNU GRUB

I've got a problem with my computer after trying to uninstall Ubuntu 14.04 (in probably the wrong way). The steps I took yesterday to try this are as follows: booted windows 8 went to uninstall ...
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1answer
29 views

Can't boot from CD/Install Windows

My issue is with Ubuntu 14.04. I have recently installed Ubuntu over Windows 8, being unhappy with Windows. After playing with Ubuntu, I discovered that some of my hardware and software is ...
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1answer
67 views

Can't Boot into Windows 8

I have just installed Ubuntu 14.04 LTS on my laptop with Windows 8 installed. Now I can boot into Ubuntu without any problems, but I can't boot into Windows 8. After I choose Windows 8 Loader (on ...
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1answer
27 views

How to install graphics drivers off a live usb

Hi im having some trouble with Xubuntu. I have a toshiba satellite c50-b-14d (Hardware can be found here: http://www.toshiba.co.uk/laptops/satellite/c50-b/satellite-c50-b-14d/) After installing ...
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2answers
34 views

need to boot back into windows 8 [duplicate]

i don't know exactly what topic i should read, but i thought it would be better to just post this. i have an acer laptop, and i was locked out of the bios. i wanted to try something new and installed ...
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49 views

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

I normally auto-boot to windows through grub because of music software incompatibilities with Ubuntu. This message came up one day and I could never figure out what happened, but It won't let me even ...
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24 views

how to fix Ubuntu boot after intalled windows?

I was having win8.1 as my 1st system and Ubuntu 14.04 as my 2rd. and last week i installed win 10 preview , however win8.1 , win 10 and ubuntu are all shown in the boot list , but if i chose ubuntu , ...
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13 views

Flashing white dash on startup

My Laptop has always been annoying when it came to grub. I have a toshiba satellite c50-b-14d (if needed you can find the hardware details here: ...
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0answers
31 views

Reset Entire Lubuntu System to Factory Defaults Without Reinstalling

Okay, I've been spending several days trying to troubleshoot my GRUB, but ain't getting anywhere. An update corrupted it, so it takes extra-long to boot my computer since I have to go through the ...
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1answer
38 views

Deleting Windows Partition + Installing Ubuntu = Please Help!

I installed Linux Mint about 2 years ago because my Windows side failed to boot. With Linux I was able to access the files I needed on the Windows side immediately, and go about my day (I did this in ...
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1answer
31 views

Two “Windows 7 loaders” in Grub2 screen

I've installed Ubuntu 14.04 LTS on the same hard drive(sda) which already has Windows 7 OS installed on another partition of this hard drive and I also have a second hard drive(sdb) which is just for ...
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0answers
20 views

A black screen/window on top of the grub2 menu on boot

I only have ubuntu 14.04 installed and I'm getting a black screen/window on boot. at first I thought that I had no grub and was booting straight into ubuntu. But that was not the case, in the next ...
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0answers
18 views

Vista & 14/04 dual-boot Boot-repair to external hdd: Can't have a partition outside the disk!

I have a laptop with 1) internal disk with windows vista and 2) an external hdd with ubuntu 14.04 On start-up it just boots to windows. If I change the boot-order to the externall drive, it simply ...
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0answers
39 views

Problems with grub rescue. can't enter BIOS, can't boot from cd, dvd or USB, only OS installed is Win8.1

I am a noob with grub rescue. I am Dutch (don't use tot difficult language) andere I screwed up my laptop. What i did: Tried to install Ubuntu and Mint next to Win 8.1. I had tot much primary ...
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0answers
14 views

Should I install the bootloader on the internal hard drive?

I've got a mac and I want to install Ubuntu on an external hard drive. Whenever I try to install Ubuntu on the hard drive I get an error when the program tries to install the bootloader on the ...
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0answers
11 views

Can not change grub2 timeout

I did follow instruction https://neosmart.net/wiki/easybcd/dual-boot/linux/ubuntu/ But I can not do last step! I did sudo update-grub and sudo update-grub2 and GRUB_RECORDFAIL_TIMEOUT=$GRUB_TIMEOUT ...
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32 views

UbuntuGnome 14.04 does not boot after install on MacBook Pro 13

I installed Ubuntu Gnome 14.04.01 by creating partitions on OS X and then installing from bootable USB disk. By Selecting Linux in rEFInd menu, I'll be taken to grub and selecting any options will end ...
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0answers
31 views

UEFI Bios, Ubuntu 12.04 and Secure Boot blocked

I have a problem, how I can boot Windows 7 / Windows 8 32-bit on my laptop, has blocked all options related to UEFI default. (See photo) At this time, I have Ubuntu 12.04 on a 16GB mSATA SSD and a ...
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0answers
16 views

Two windows 7 entries with only one working randomly when booting

I installed Ubuntu alongside Windows 7 just now and when booting up, I get the menu: Ubuntu memtest windows 7 (loader) /dev/sda1 windows 7 (loader) /dev/sda2 Now, the problem is ...
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13 views

Forced reboot stopping in grub on HyperV

On 14.04, running on HyperV (Windows 8.1, deploy planned for 2008R2). For a complicated reason, I need to occasionally force a second reboot while the system is booting (I will also post a question ...
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2answers
41 views

DUAL OS with booting

I Have installed the Ubuntu 14.4 version o/s over the Window 7 ultimate with seperate partition with 200 GB free space. Thereby I have changed the booting mode to hard disk now I am facing the ...
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0answers
13 views

Partition not found Grub Rescue [duplicate]

I had installed ubuntu on a different partition. When i deleted that partition, it also deleted my 3 logical drives and i am only left with C drive containing XP Professional and another drive D. I ...
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1answer
38 views

Couldn't access ubuntu, used boot repair, cant access windows 7!

As the title says, I accidentally created a grub on my windows partition and now I can't use it. My windows install disk says that it's not compatible with my windows so that doesn't work. Then I ...
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0answers
8 views

Grub lists Windows 7 but hangs on trying to boot it

First of all, many thanks for trying to help. Here is the problem: I've two physical drives in the PC with a clean Windows 7 installation on sda and a clean Ubuntu 14.04 (64-bit) on sdb. Both OS boot ...
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0answers
28 views

Show ubuntu boot as UEFI in boot selection HP Envy

I've recently installed xubuntu on my HP Envy 15. I can't set it as default boot because it is not seen as UEFI boot. The strange fact is that the usb drive I used to install xubuntu (made with ...
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0answers
9 views

How to fix display of system rescue cd?

I recently change system rescue cd to 4.3.1. One thing different is that it starts from a character console (like 80 characters per line), then the font becomes smaller and the console only takes ...
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0answers
32 views

Lost grub menu entry after installing second linux OS

Previous setup was Kali Linux (encrypted) on my HDD and Windows 8 on my SSD. I installed Kali Linux while having my SSD removed from the device so this install could not mess with my windows system. ...
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2answers
35 views

Grub Setup for dual Ubuntu under EFI

I have installed to versions of Ubuntu, one up-to-date Xubuntu and a 12.04.5LTS Ubuntu. I first installed Xubuntu and later Ubuntu. Since the 12.04 would not write a correct grub-conf on install (I ...
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2answers
63 views

Install Windows Alongside Ubuntu 14.04 on Second hard Drive

Currently I have Ubuntu 14.04 installed on one hard drive, and I'd like to install Windows onto a second hard drive. I've read that I need to boot into a LiveCD, usually I'd use my memory stick for ...
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1answer
25 views

GRUB problems after Upgrade 14.04

I upgraded to 14.04 on a server a few months back and today was the first time that I have rebooted it. When I expected it to come up normal, it seemed that GRUB was broken or just not found. I ...
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2answers
49 views

How to give boot priority to grub2 on HP Envy 15 notebooks?

Yesterday I installed xubuntu 14.04 on an USB3 ultrafit pendrive just to avoid modifying the partition table of my new HP Envy 15 jxxx. Everything works fine, xubuntu do perfectly this job... but ...
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0answers
20 views

Grub navigation with volume key and windows key on surface pro

I recently dual booted my surface pro with ubuntu 14.04 (and upgraded to 14.10). Everything works fine (since I upgraded to 14.10). There is one little problem. i don't have the windows clip on ...
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35 views

Corrupted boot file

a while back ( 6 months or so ) I was using a single laptop and switching out the Windows HDD with my Ubuntu SSD drive from time to time. The laptop was in standby in Windows ( I thought it was off ! ...