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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14.04 Dpkg Found kernel: /memtest86+.bin issue (freeze during update-grub)

Hopefully I'm not violating any rules by opening new topic for the issue I've encountered. Trust me, I've tried browsing all over askubuntu and bunch of other sites, but none of offered solutions have ...
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0answers
16 views

Problem with GRUB configuration

I have this problem with GRUB (using Ubuntu 16.04 and Windows 10) grub-mkconfig no se pudo ejecutar satisfactoriamente. mensaje de error: /usr/sbin/grub-mkconfig: 11: /etc/default/grub: ...
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8 views

Live Ubuntu USB fails to boot at grub display

I have two custom computers that are hardware identical (except the power button). One CMOS is newer than the other (and FWIW both machines run 14.04 server). Both machines have i7 CPUs, 16 GB RAM, ...
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0answers
15 views

Uninstalling Ubuntu and the Boot up option

I had recently installed Ubuntu MATE and I had a few troubles with it so I decided to uninstall and play around with a few more distros. Now, when I uninstalled it(deleted partition and got rid of the ...
3
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1answer
46 views

Windows 10 update destroyed grub and ubuntu partition

I've been running Windows 10 alongside Ubuntu and Windows did an update that removed the GRUB loader. After running BootRepair, the message displayed changed to "An operating system wasn't found ...". ...
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1answer
27 views

Ubuntu 16.04 booting to emergency mode after updating windows 8.1 to windows 10 in dual boot

I updated my windows 8.1 to Windows 10 and then the grub menu was not appearing, it directly booted to Windows 10, I tried in cmd with this code ( bcdedit /set {bootmgr} path \EFI\Ubuntu\grubx64.efi )...
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37 views

jKDE Neon Boots into Intramfs, No Error

I just installed kde neon, and after rebooting for the first time (not including the reboot after installation), the computer now boots into the initramfs prompt. This happens after the grub and the ...
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1answer
8k views

How to Re-Add Windows XP to grub menu after Ubuntu 11.10 Re-install

Basically, I messed up my partitions and decided to do a full re-install of both Windows XP and Ubuntu 11.10 (I know that 11.10 is outdated, but I was planning to do an update to 12.04 as soon as I ...
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24 views

ubuntu 12.04 installed on formatted hdd, fails to boot past welcome page

Disk was formatted with ext4 and swap and the installer indicated system installed. On boot I can go to the page showing ububtu, recovery, mem tests but when ubuntu is chosen we get a black screen ...
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1answer
40 views

startx doesn't work on ubuntu 16.04

I modified grub, so that whenever I boot, it starts in command line mode. However, when I type startx, it gives me a screen with the ubuntu background on it and my cursor is an x. I can open things ...
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0answers
22 views

Ubuntu 16.04 splash screen freeze

After a little while of having Ubuntu 16.04 (which I upgraded from 15.04) I keep on getting the splash screen to freeze after a few animations cycle of the dots where it end up like this and whenever ...
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0answers
52 views

Grub fatal error - which partition for grub?

I am trying to install Ubuntu 16.04 alongside with Windows 10 (using USB stick), but at the end of installation process a "fatal error" appears, saying that grub failed to install on /dev/sda and ...
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1answer
20 views

Unnecessary entries in Grub2 Boot Menu

I just finished repairing Grub2 after a SSD-to-SSD clone. Now when I boot up I see the Grub boot menu, but I see several entries I hadn't seen before the clone. I've tried booting Ubuntu and Windows ...
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2answers
5k views

Deleting GRUB2 which is placed in sda? And how to fix two Ubuntu entry in EFI Boot selector?

I have EFI Windows 8 in my Asus K55V laptop. EFI partition is sda1. I tried to install Ubuntu in EFI mode and created/selected separate boot partition for Ubuntu boot loader. Ubuntu installed ...
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2answers
63 views

can't boot due to Shim UEFI key management tool

I have Toshiba laptop Portege Z930, core i7 with Ubuntu 16.04 (amd64) and Win 8 dual boot. During today's software update in Ubuntu the system hangs on. After reboot I see grub shell. I boot the ...
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0answers
21 views

Multiboot missing after cloning SSD

I have a Windows/Ubuntu installation that was working fine. When my laptop booted I would get a solid purple screen with white letters offering me a choice of which OS I wanted to boot. Yesterday I ...
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0answers
23 views

How to repair GRUB? Boot-Repair not working, cannot access Windows 10

After deleting Ubuntu partitions from my computer's hard drive, I ran into a common problem. The system boots into grub rescue mode instead of booting into Windows 10. It appears I deleted GRUB, and I ...
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1answer
65 views

Having trouble booting Ubuntu 15.10

I've recently taken the plunge to leave Windows completely behind me and explore Linux. I decided to start with Ubuntu to get the hang of it all, however, I seem to have run into a problem that I can'...
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1answer
120k views

How do I boot into recovery mode?

I recently tried booting into the Grub2's menu entry "Ubuntu GNU/Linux, with Linux 3.2.0-24-generic-pae (Recovery Mode) just to see what was there. It booted successfully, but I had no idea what to ...
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3answers
9k views

No bootable device error message on UEFI after installation

I have a new Acer Aspire E13 (ES1-311-P1D5) notebook. I tried to install Ubuntu 14.10 with disabled Secure Boot but enabled UEFI. After the installation I couldn't bot. I just got "No Bootable Device"....
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5answers
16k views

Black screen after GRUB, can't install. UEFI

I know there are tons of threads like this and I've tried everything i can think of that has been given as an answer in those threads. The problem: I select the USB flash drive as my boot device, and ...
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2answers
36 views

Ubuntu will not install after using a live usb stick

I tried installing Ubuntu 14.04 once, and it was successful. However, after I booted my computer to a windows 10 usb drive, grub disappeared. I tried to retrieve it several times, but to no avail. I ...
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1answer
4k views

Kubuntu UEFI Dual Boot with Windows 7 failed at installing Grub-efi

I want to install Kubuntu 13.04 together with Windows 7 in UEFI Mode. I installed Windows 7 first, which created the EFI boot partition. When it come to installing Kubuntu, the installation failed ...
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3answers
5k views

How to set nomodeset GRUB2 before I've installed Ubuntu

When I hit e this is what I see where do I place nomodeset
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0answers
34 views

Ubuntu 16.04 and Windows 7

I have ubuntu 16.04 and windows 7 installed on different hard drives, ubuntu on SATA port 0, and Windows 7 installed on SATA port 1. At this moment if I need to use windows I have to go on BIOS and ...
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4answers
14k views

Dual boot menu not showing after installation of Ubuntu 12.04

Before installing Ubuntu 12.04, Windows XP with three drives were there. I've installed Ubuntu 12.04 64 bit in of the three drives which I've mentioned above, installation went fine but after ...
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0answers
45 views

Recover Ubuntu 14.04 Encrypted Install

I have an encrypted install (Full drive, not only home directory) of Ubuntu 14.04 on a 1TB SSD. I do know the passkey to unencrypt everything. It's just a matter of finding the files now. Here's what ...
5
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2answers
12k views

Unable to boot Windows 8 after Ubuntu installation

I installed Ubuntu on a pc with Windows 8 preinstalled. After installation Grub showed Ubuntu entries and Windows 8 Boot Manager (or something similar), selecting it I got: /EndEntire file path /...
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1answer
4k views

14.04 Freeze on Splash after Installing NVIDIA Drivers

First of all, I have looked at a bunch of threads that are similar, but none of the solutions work for me. I am trying to install nvidia drivers (nvidia-340, specifically) but when I reboot the system ...
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2answers
5k views

Dual boot pc boots directly to ubuntu instead of showing grub menu

I installed windows 8.1 on my new laptop (which came with freedos), I later tried to dual boot the pc with ubuntu 14.04 (with legacy mode). I didn't get an option to install alongside windows 8 so I ...
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0answers
29 views

After recommended boot repair, it showed there is no operating system

I had a dual boot system with Ubuntu 14.04 and Windows 8.1. After I upgraded Win to Win10, there was no GRUB entry for Ubuntu (or maybe Ubuntu was wiped, but I didn't notice...) I searched online ...
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0answers
27 views

Ubuntu Live CD persistence ISO on hard disk

I am trying to setup persistence while booting from a customized (uck) ubuntu Live CD ( 16.04 ) ISO which is stored on my hard drive ( hda ). My Grub configuration for the Live CD is as follows : ...
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1answer
5k 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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0answers
22 views

Ubuntu won't boot from SSD

Previously I've had windows installed to a SSD in my laptop and ubuntu installed to HDD on it. Recently I've changed that HDD to SSD and installed ubuntu there as usual, but for some reason it won't ...
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0answers
285 views

Grub Rescue unable to “insmod normal”

I am stuck in the Grub rescue: I know my Linux is saved in (hd0,gpt2). grub rescue> ls (hd0,gpt2)/boot/ ./ ../ vmlinuz-3.13.0-70-generic grub/ initrd.3.13.0-70-genric grub rescue> ls (hd0,...
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1answer
27 views

Accidentally deleted Ubuntu volume from Windows?

I had Ubuntu dual booted with UEFI in my disk and I accidentally deleted that partition. I am still in Windows and haven't shut it down. Is there any way to fix this?
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1answer
30 views

How do I remove grub?

I was trying to install ubuntu on an external hard drive using my dads dell laptop because my laptop was being repaired. Anyways i used a bootable iso usb from unetbootin to install it. I have done ...
0
votes
1answer
34 views

Upgraded Ubuntu to 14.04, can't login to my account & don't know the password of root

I upgraded my ubuntu from 12.04 LTS to 14.04 LTS recently. While installing the downloaded packages, my system hung up and restarted. That is how the problem started. It's not taking my old password. ...
0
votes
1answer
24 views

Installing Ubuntu 16.04 - Out of Range issue (in Skylake)

I'm trying to install Ubuntu Studio in a brand new machine. It has UEFI and Grub2. Problem is that after a Ubuntu (Studio) splash screen I get a "signal out of range" error. And all I can do is press ...
6
votes
3answers
250 views

Trying to install 3 different versions of Ubuntu for triple-boot (no Windows)

Summary of what I need: I want install 3 different versions of Ubuntu on a computer. I would like to be given a choice of which OS to boot every time I turn on my computer. I would like to share ...
0
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0answers
71 views

Trouble installing Ubuntu 16.04 since I got GTX 1070

I was running ubuntu with windows, and once I got my GTX 1070, and installed the nvidia drivers on windows it caused Ubuntu to go black screen whenever I would load it from grub. Additionally my asus ...
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0answers
13 views

Dual boot: Black screen after purple screen with logo

I have Ubuntu 14.04 installed along Windows 8.1 running with GRUB2 in a MSI GE60, i7 with an nVidia GeForce GTX card. Out of the blue, today when I try to run Ubuntu, after the purple screen with the ...
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1answer
6k views

how to add windows 8 entry to grub after boot-repair

I installed ubuntu 14.04 in a dual boot (with windows 8.1) but my pc directly boots into ubuntu. For that I did a boot-repair->recommended repair. But all I got was grub menu with an option to boot to ...
2
votes
2answers
3k views

Is dual booting ubuntu and fedora/openSUSE as easy as popping in a liveCD?

I wish to dual boot ubuntu (currently installed) with fedora and/or openSUSE (fedora for vanilla gnome and SUSE for a good KDE experience). I do not know much about dual booting and grub. Do I only ...
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0answers
23 views

Windows 7 option not visible in Grub after installation of Ubuntu

Before asking here, I have checked lots of options mentioned here in this portal, but got no success. So, I was using Windows 7 first, later yesterday I try to dual boot Ubuntu. Now, in Grub it is ...
2
votes
1answer
21k views

GNU GRUB Version 2.02 beta 2-9 while booting from USB

I attempted to install the latest version of Linux Ubuntu Studio, with previously installed Ubuntu 14.04. Installation procedure went fine, it was only at the finish, when something collapsed, I ...
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0answers
18 views

Can't Ubuntu's grub2 display in menu and load multiple different partitions of windows?

I have been using Ubuntu and Windows on the same machine for over a decade now. In the past I had the latest LTS Ubuntu and XP on their own hard drive partitions. I used XP for gaming and Ubuntu for ...
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0answers
22 views

Problem with NVIDIA drivers and encrypted partition (dual boot)

I'm trying to install Nvidia drivers on Ubuntu GNOME 16.04 but I have problems when I boot up. My machine has 2 SSDs: First one with Windows 10 Second one with Ubuntu GNOME 16.04 (on which I boot) ...
3
votes
1answer
6k views

What location to put bootloader, when running multiple drives and partition

I have Win8 on my desktop, where a 120G SSD is used to run windows and some select applications, while I have a 2TB HDD to provide basic file storage and where possible, install applications instead ...
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0answers
28 views

How do I repair after testdisk disaster?

I have been a very silly boy. I intended to erase an SD card with testdisk but accidentally ran delete on the wrong drive and have apparently hosed my system. Trying to boot from HDD gets me to grub ...