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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Need help, stuck in Grub rescue mode!

Help there Ubuntu community, I just had this problem where whenever I boot up I get transferred to Grub rescue mode. I have tried many methods from other users, but whenever I try to do 'insmod ...
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1answer
34 views

GRUB Rescue after Disk Clone

I need a little help from a GRUB expert. I just cloned a 1 TB Seagate drive onto a brand new 2 TB Hitachi, and before swapping them out, I decided to boot-test it. It's tied to my computer through a ...
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2answers
1k views

Will Windows 10 “upgrade” affect GRUB2 and screw up my dual boot with Ubuntu? [closed]

I turned off Windows update because I read about problems with BIOS tinkering within the updates. Will Windows 10 "upgrade" affect GRUB2 and screw up my dual boot with Ubuntu?
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21 views

Facing fatal error “unable to install grub” while installing UBUNTU 14.04

Recently I bought Dell laptop with i7 processor and Windows 8 is preinstalled.. I downloaded UBUNTU 14.04 and trying to install . But I am facing fatal error " Unable to install grub2". I tried ...
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0answers
11 views

Grub not running after formating my first Ubuntu partition

I've had installed Ubuntu and Ubuntu Gnome alongside Windows 8 on my computer, but a few days ago, I decided to remove one of those Linux Ext4 partitions (Ubuntu, which Grub was also installed on it). ...
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1answer
12 views

I have grub installed twice, what will happen if I remove the 1st install?

My hard drive: sda1: SUSE sda2: new Ubuntu, installed yesterday sda3: win7 When I turn on my PC it always uses the SUSE boot loader. When I format the partition with SUSE will my PC ...
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0answers
28 views

Can't boot after yesterday's update(20.01.15), except advanced option (last one)

Yesterday I've applied the update that showed up on my Ubuntu 14.04, and when when I returned I got a sad surprise: Ubuntu was going into a boot loop after selecting it normally from GRUB. I tried: * ...
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0answers
14 views

Why ubuntu 14.04.01 starts up to some text screen always [closed]

My Ubuntu 14.04.01 desktop corrupted with black screen and I reinstalled same but now, when I start it go to some text screen after restarting it works. I corrected it with Boot loader but now it ...
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0answers
22 views

Problems installing Windows 7 over Ubuntu [duplicate]

I am new to Linux. My problem is that when I try to install Windows 7 from USB I go straight to GNU GRUB menu or something like that (again I am new to Linux). When I access the UEFI (BIOS) and ...
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1answer
32 views

Problem with grub Ubuntu 14.04

I have just installed Ubuntu 14.04 on my PC and when I restarted the PC it told me that it does not have any Operating Systems installed, ok, so I tried to reinstall grub with the Ubuntu live CD ...
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0answers
34 views

Installing Ubuntu 14.10 alongside Fedora 21

I installed Ubuntu 14.10 after installing Fedora 21 but I cannot see fedora 21 installation in boot option. update-grub in Ubuntu recognizes fedora 21 but when I reboot I don't see the option. (I ...
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1answer
43 views

What is the difference between GRUB_CMDLINE_LINUX and GRUB_CMDLINE_LINUX_DEFAULT in /etc/default/grub

I'm troubleshooting a fn-key brightness control problem on my laptop, so I'm wading through a lot of config options in /etc/default/grub, as you can imagine. However, it's raised a question for me: ...
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2answers
15 views

Regaining Ubuntu after installing Windows 7

I had Windows 8 and Ubuntu on two different partitions. I was using both the operating systems as per my needs as I had dual booting options. I have now removed Windows 8 and installed Windows 7 in ...
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1answer
29 views

MBR is on wrong drive (USB) now windows/ubuntu won't boot w/out usb connected

I somehow installed Grub on my USB drive, now Windows/Ubuntu won't boot unless my USB drive is connected. How do I move the MBR to my laptop - internal HDD? Acer 64; Windows 8; Ubuntu 14.xx
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1answer
55 views

Asus booting and rebooting into BIOS

I have Ubuntu 14.04 on my laptop, (Asus VivoBook S551 R551LB) fully encrypted system (need pass-phrase on boot), it used to have Windows 8 but I installed Ubuntu instead. I just realized today that ...
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1answer
51 views

How to install Kubuntu from working OS?

I have dual-boot system. Now, I want to erase all packages and all home's files on my Kubuntu, i.e I need 100% clean system. I decided to make a bootable usb-stick. I tried to boot from it, got ...
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2answers
36 views

After Installing Win XP, could not able to load Ubuntu 14.04

My System was having Windows XP in C: drive, then I installed Ubuntu in F: Drive. Everything was going fine. But I re-installed Windows XP due to some reasons and I did take care of F: Drive where ...
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0answers
41 views

GRUB doesn't detect Windows an second hard drive

I helped a friend of mine dual-boot Xubuntu 14.04 and Windows 7 Professional. I put WIndows 7 on a 80GB hard drive and put Xubuntu on a 1TB drive. I booted into Xubuntu and ran update-grub, but it ...
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0answers
20 views

Solid dual boot solution for OS-X and Linux (ubuntu)

What is the best, solid dual boot solution for having OS-X and Linux on the same harddisk on a Macbook Pro? Criterias would be: Usability Robustness of the setup (regarding updates of OS-X etc.) ...
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0answers
14 views

Grub not responding

I ran into a problem after installing Ubuntu without rEFInd on my Macbook Air 2013 11". I used my macbook's own bootloader to install it, and everything worked fine (I could use the USB drive to boot ...
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1answer
29 views

Ubuntu 14.04 On Asus Zenbook UX302LA

I have an Asus Zenbook UX302LA with Win8 pre-installed that I bought new in the summer of 2014. I now want to dual-boot it with Linux Ubuntu 14.04 (latest version I believe). I can get it to boot no ...
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0answers
22 views

Nothing works only mouse moves

Ubuntu boots, shows desktop and mouse moves but no other interaction seems possible, no clicks, no ctr+alt+t. I've cloned my dual-boot Ubuntu(3.13.0-44?)/Win7 to a new SSD drive I copied only the ...
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0answers
34 views

Boot menu that worked with GRUB Legacy no longer works with grub2 [closed]

I used a USB with multiple ISOs and I have put them in the GRUB menu. When choosing them from the GRUB Legacy menu it worked perfectly, until the arrival of grub2. Now I do not get the same GRUB menu. ...
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0answers
47 views

How do I make grub recognize Windows 7?

The dump from boot-repair: http://paste.ubuntu.com/9769234/ What's wrong here? update-grub doesn't find Windows, neither does os-prober and a manually added entry for it fails as well (it says ...
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0answers
12 views

Help with dual boot on toshiba satellite [duplicate]

staff. I'd like to make dual boot with Ubuntu on the Toshiba Satellite, where is just installed Win 8.1. On that computer, there is EFI and UEFI system, so i ask you if somebody can give me ...
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19 views

Wrongly set the grub password and cannot enter, how to recover? [duplicate]

I wrote in 00_header: cat << EOF setsuperusers="heyward" password su grub.pbkdf2........... EOF And now each time I select from menu, it requires a password and I cannot enter. Is there ...
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2answers
58 views

can't install ubuntu along with windows 8.1

respected person I have an laptop hp pavilion g6-2312 ax,runs windows 8.1(uefi boot loader) actually wanted to install ubuntu along with windows 8.1 and came to know that ubuntu runs on mbr and don't ...
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1answer
33 views

My laptop doesn't recognize its internal disk as bootable. How do I fix this?

I bought a Toshiba Satellite and installed Ubuntu using a homemade liveusb, choosing to use the entire HDD and set up an encrypted LVM in the process. The installer finished with no errors, but the ...
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3answers
32 views

Lost Ubuntu 14.04 after Windows 8.1 install at 2nd partition

Greetings to everybody, not sure if anyone had the same issue previously, but could not find any similar (or i wasnt that patient to search :) and in that matter i apologize if am making duplicate ...
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1answer
60 views

Ubuntu 14.04 windows 7 dual boot problem

Initially, I have installed windows 7 Ultimate on my lenovo laptop. Later, I did install Ubuntu 14.04. It shows the dual boot option when booting. But if I select the Windows loader option then it ...
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2answers
58 views

How can I get grub2 to boot a different option only on the next boot?

I am setting up a dual booting headless linux / windows machine. I mostly want the machine to always boot up to Ubuntu, except for occasionally when I need to test something in windows. I've ...
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1answer
182 views

I screwed up a dual boot (Windows 7 + Ubuntu 14.04.1) so bad that no OS will load and I had to buy Windows again [duplicate]

So heres what happened: I had Windows 7, partitioned so that 64GB of unallocated space would be used to install Ubuntu side by side Windows 7. My live CD booted up and gave me the error message: Could ...
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0answers
10 views

Multiooting in Secureboot mode - vmlinuz invalid signature [migrated]

My system has Windows 8.1 installed by default. I installed LinuxMint and openSUSE later. The problem is if I use openSUSE bootloader, it is able to load windows but not linuxmint. The error vmlinuz ...
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2answers
49 views

having different operating systems on ubuntu [duplicate]

I have seen this computer where when the computer boots up, the grub screen lets him choose operating systems. as the four ubuntu choices like ubuntu recovery and stuff are still there, there is a ...
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1answer
26 views

Ubuntu installation not found by update-grub

This is a different case than the other questions about this topic, none of which helped solve this one. I have two disks (I'll call them disk 1 and disk 2), each with its own GRUB. Both disks boot ...
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1answer
36 views

How to remove Grub from Surface Pro MBR?

I have tried fixboot and fixmbr, both say "the operation completed sucessfully" however whenever I boot the surface, the logo flashes and than I am directed to grub's command prompt and the only way ...
0
votes
1answer
43 views

Laptop doesn't boot, fails loading the GRUB bootloader!

I-m facing a very annoiyng issue with my laptop that has a dual boot system with Windows 7 and Ubuntu 12.04. Since I don't know why the GRUB bootloader stopped to work and the laptop can't load. I'm ...
0
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1answer
40 views

grub-customizer

I have always been a windows user. Thought I would try kubuntu to see how I liked it. I would like to make windows my default, so I downloaded grub-customizer to reset the boot. I really do not ...
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0answers
25 views

Unable to decrypt disk on normal Lubuntu boot

I'm having trouble starting up my system. I use VirtualBox to run Lubuntu 14.10 on Mac OS X 10.10.1 host. I have used the built-in disk encryption available when installing (L)Ubuntu. When it boots ...
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votes
1answer
64 views

Uninstall ubuntu on windows 8.1 [duplicate]

I installed Ubuntu (14.04) on my Windows 8.1 (4 Go RAM, 64 bits) by means of a bootable USB. After having partitioned the HDD, the installation was successful. However, I had an issue to boot into ...
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3answers
44 views

Upgraded Ubuntu… now only have Windows

I've had Ubuntu 12.04 for about a year now, resisted upgrading because everything works fine. Finally I gave in because I noticed many Windows applications on Wine just aren't working anymore. I ...
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1answer
84 views

Fix grub with dual boot on different drives

I have windows 7 installed on C drive and Ubuntu 14.04 on another one. When I boot I got into grub rescue. Luckily I've found the solution ( somewhere on stackoverflow) to "mount" drive manually by ...
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0answers
21 views

Could not initialize sdl no available video device

Hi I booted to tty1 by changing the grub from splash to text. I have a GUI program to run at startup but when i login i am getting could not initialize sdl no available video device. But when i put ...
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2answers
24 views

Bootup (100 times slower than usual) drops to a shell IF at boot time the computer was off for less than 5 minutes. USB mouse no longer recognized

I've been using Ubuntu on a Windows dual-boot Sony Vaio VGN-CS390 laptop for more than five years now. Yesterday I made a fresh install of 14.04 LTS over 12.04 LTS. Everything worked fine, even after ...
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0answers
31 views

Bad kernels upgrade, and it is impossible to delete them

I have a huge problem on my Ubuntu 14.04. It runs an 13.3.0-39 kernel. A while ago I wanted to update the kernel via Synaptic to 13.3.0-40 and 13.3.0-43. Unfortunately, the kernel upgrade did not ...
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2answers
83 views

Removing grub from laptop

Is it possible to remove grub by doing a windows 8 refresh Wondering if this would work as I'm doing this on a friend's system. Dont want to mess up anything. He doesn't have a CD to fix the MBR so I ...
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0answers
50 views

Ubuntu14.04 Installer Crashes

I have been trying desperately to install one of the linux distros but I'm not having luck. Usually, the reason is GRUB not installing. Now, I'm not a linux guy and I rely on help from others. One of ...
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0answers
23 views

After upgrading to Ubuntu 14.04 my windows partition is having an invalid signature

I had a dual boot computer with windows 7 and ubuntu 12.04. I had grub with the option to jump into windows 7 at any time. Now today I was in Ubuntu and I decided to upgrade to ubuntu 14.04. After ...
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0answers
117 views

Kernel panic - not syncing: No working init found - also Windows7 dual boot failure after second install!

Installation is on an MSI-7680 MB, with i7-2660 processor, 8G, and 1 TB disk. Procedure followed is per instructions on http://www.ubuntu.com/download/desktop/create-a-usb-stick-on-windows using the ...
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1answer
56 views

Xen vm stuck at grub prompt

How can I get my Ubuntu server booting again? Is there a tool that would auto-fix this situation? No matter how many ways I run the "boot fixer" using a virtual image of ...