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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Disk issues (JavaScript error in the main process)

I seem to be having ocassional SSD (Patriot Blaze) I/O Errors evne though all the tests show disk to be healthy, clean and operational, at only 7 months of age. UPDATE: A third instance of disk ...
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Dual boot Windows 10 & Ubuntu 16.04 — blank purple screen of death when booting Windows!

This is on my Dell XPS 9550 laptop with 512GB Samsung P951 NVMe SSD. I first installed Windows 10 and it boot up just fine. Then I shrinked the volume for Ubuntu and installed it via Live USB ("...
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2answers
79 views

Windows 10 Boot Loader Mssing After Ubuntu 16.04 LTS Load

Back story - HP Pavilion laptop originally with Windows 8.1 and upgraded to Windows 10 some time ago. Decided wanted to dual-boot with Ubuntu 16.04 LTS. Inserted DVD and installed alongside Windows 10 ...
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32 views

Trouble booting with Grub

everything was working fine and ubuntu was booting without a flash drive on my macbook pro, and now all of a sudden when I try to boot I get to this grub menu:https://www.linux.com/learn/how-rescue-...
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1answer
30 views

Cannot find hard disk after installing Ubuntu

I had Windows 10 installed on my PC then I created a new volume from C drive and then installed Ubuntu from live environment. It said installations successful and everything OK. But after restart no ...
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Lubuntu 16.04 Keyboard Arrows show weird characters after unistalling grub

Hi I have a problem with my keyboard, I installed Lubuntu 16.04 and I wanted to install also Windows XP so I followed some guides here in aksubuntu.com and I unistalled the GRUB but at the end my CD ...
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79 views

Cannot install Ubuntu 16.04 on Dell XPS 9550 — grub-install /dev/nvme failed

I just got my Dell XPS 9550 laptop, then I installed fresh Windows 10 Pro x64 on it, shrinked the volume for Ubuntu, and tried installing Ubuntu 16.04 via USB stick from ISO. I did the install ...
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23 views

Sony vaio pro13 dual system problem

I'm new to ubuntu, here I may do some stupid changes and cause my computer boot failed, so I need your help. My laptop is a Sony vaio pro 13, and I put ubuntu and windows 10 inside. However, after ...
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22 views

Grub rescue while bootnf [closed]

any fix for this error message, I'm on Zorion is 11 on an HP TC4400 graphics tablet laptop 2 in 1
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1answer
26 views

GRUB trouble (installing Ubuntu, dual-booting with OS X)

I want to be able to dual boot OS X and Ubuntu, but have run into an issue (GRUB). Progress so far: I successfully got rEFInd working on El Capitan (disabled System Integrity Protection and Full ...
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22 views

Endless booting loop

So I have installed windows 10 and Ubuntu on two separate drives on my computer. They both works fine and I can switch between the two easily enough. Now I'm trying to see if I can make so that if I ...
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15 views

Grub Console appears - hey from Bios Boot Menu Works

I installed Xubuntu 16.04 on a 2nd Hard Disk (not partitioned) and configured the BIOS to automatically boot from it. The problem is, that the automatic boot starts the Grub console instead of the ...
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1answer
54 views

Purple screen of death: can't get into ubuntu desktop or grub menu

I bought a new laptop with ubuntu pre-installed on it. I have only had it for about a week and have already broke it! When I boot, only see a purple screen. When this first happened I restarted and ...
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1answer
51 views

Error: cannot find a GRUB drive

I previously posted here with this question, which is now resolved. I am trying to install ubuntu 15.10 on my macbook pro with a flash drive. Specifically, I am following these instructions I found by ...
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1answer
70 views

grub2 installation fails for Ubuntu 16.04 LTS

I have been trying to install Ubuntu 16.04 on my Lenovo Ideapad500-15isk alongside windows 7 using a usb live disc. I have kept 8200MB of swap space and 20482MB of mount point / and around 390 GB ...
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21 views

How to replace GRUB with ELILO?

I was wondering if it is possible to replace GRUB with ELILO on a installed Ubuntu (and keeping a dual-boot with Win) without losing functionality or personal files?
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24 views

Will boot-repair ommit entry for manjaro

Recently i ran boot-repair and it worked like a charm and even kept the windows launcher. more recently i installed manjaro. it reinstalled grub2 and showed an entry for ubuntu and manjaro but not the ...
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45 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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48 views

Xubuntu 16.04 doesn't boot; hangs after fsck

I have just installed xubuntu 16.04LTS on a Dell Inspiron Mini as a dual-boot with Windows 7. When I booted it up for the first time yesterday, it worked fine. Today, however, I see the following: /...
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46 views

Edited timeout in /etc/default/grub, and ran update-grub, but timeout remains 10sec

Xubuntu 16.04, Grub 2.02~beta2-36ubuntu3 I edited the timeout to 3 seconds: GRUB_TIMEOUT=3 Then run: sudo update-grub Timeout during grub boot is still 10 seconds. What am I doing wrong? Edit: ...
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16 views

“Unable to install grup /dev/sda” while dual booting

Recently, i installed Ubuntu 16.04 LTS 64bit using USB and it worked fine but as a restarted the os it opened windows 10 (My first installed os 64bit, UEFI, secure boot: Disabled). Then i tried to ...
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36 views

Windows7 - Ubuntu 14.04 dual boot setup

I have been using EasyBcd to create a dual boot menu for my Windows7 and Ubuntu 14.04 installation. I had it set up yesterday fine, but tried to go another route (which failed), so I tired reverting ...
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11 views

GUI chainloader for internal USB

I have a USB pcie card with two internal ports. I have a spare 2gb USB stick that I'd like to use as an extensive chainloader so that I can boot to obscure partitions and even use GPT in my old ...
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23 views

error invalid arch-independent elf magic - same error on HDD, Live 14.04 USB, and Boot-Repair Live USB

Okay, this question has been asked a lot but as far as I can tell I am the first person to get the same error while booting from live USB's. I installed the latest version of 14.04 onto an HDD. On ...
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33 views

Can't boot to windows 10 from grub and ubuntu won't boot

I previously had Windows installed in BIOS mode. I tried installing Ubuntu in BIOS mode and it just booted to Windows. So I installed it in UEFI mode and it said: You will have trouble booting to ...
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31 views

Grub Boot from ISO with lvm

In a simple boot procedure from an ISO image the below statements works well: menuentry "Ubuntu.iso" { set isofile="/iso/ubuntu.iso" loopback loop (hd0,3)$isofile linux (loop)/casper/vmlinuz.efi boot=...
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1answer
43 views

Fresh install Ubuntu 16.04 : Not possible to boot Win10

Fresh install Ubuntu 16.04 on disk sdc. Windows 10 is on sda. During install, I chose to put grub on sda, I guess it was a mistake. Grub does not see W10, and if I choose starting on windows hd ...
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66 views

Where is Grub installed?

I created a live USB of Ubuntu 16.04 and installed it on another USB drive. Sometimes, the computer boots into a black screen with grub rescue prompt grub> When I type exit it takes me to Grub ...
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1answer
12 views

Grub Boot loader will not install to Raid Drive

I am trying to Install Ubuntu Server 16.04 LTS onto a Fujitsu Primergy Server and Cannot get the Grub Boot loader to install. I have initialized the drive many times and this is a completely clean ...
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20 views

grub-probe error unknown filesystem after failed release upgrade, LVM RAID5 resize

I've got a software LVM RAID5 setup, across 4 physical hard drives: /dev/vg1/lv0 contains /boot /dev/vg1/lv1 contains / A do-release-upgrade from 14.04 to 16.04 failed due to /boot partition being ...
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26 views

My Ubuntu Mate 16.04 LTS freezed

Friends, I used Ubuntu 14.04 LTS. Recently I installed Ubuntu MATE 16.04 LTS. It was working fine. But the network icon was disabled whenever I connect a USB modem to this system. So, I installed a ...
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27 views

I can't install (boot-repair) on my Unbunt 12.04 LiveCD

I had a Linux Mint 17 on my PC. Then I installed Windows 10. I lost the Grub. While recovering it I've used the following steps: Got my Ubuntu 12.04 LiveCD [Because I've lost my Linux Mint 17 LiveCD]...
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2answers
71 views

How to remove Ubuntu 15 and GRUB bootloader? [duplicate]

I want to uninstall Ubuntu from my laptop as well as GRUB bootloader. My laptop is currently dual-booting windows 10 and ubuntu.FYI I don't have any windows installation disk. Is there any way I can ...
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1answer
16 views

Stuck at GRUB after PXE Boot-System

I installed ubuntu 16.04 on a headless server, it goes to the PXE Boot-system screen of my provider, starts local boot by default then I'm stuck at a GRUB command, but I cannot type anything. When I'm ...
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2answers
91 views

grub2 wont load Ubuntu on dual boot

Having an issue with a dual boot setup that is being run from Windows boot manager. I can successfully load into grub2 from Windows boot manager, however it seems that grub2 cannot locate to the ...
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1answer
50 views

How do I install Ubuntu to a USB Hard Drive without the GRUB Bootloader?

So recently I've gotten my hands onto a decent enough hard drive that can run Ubuntu good enough and installed it. It was a Toshiba 1TB USB 3.0, though I don't know the model. I installed Linux on ...
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1answer
36 views

Windows not appearing in GRUB

I have a Macbook pro running both Windows 10 and Ubuntu 16.04. When I initially installed Ubuntu, I received an internal error which didn't cause the desktop to load, so I reinstalled it. At the time, ...
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1answer
72 views

Ubuntu 16.04 Complicated Interface Names

I'm trying to figure out how to restore the simple interface names in Ubuntu 16.04. I.e. enp3s0 renamed to eth0. I have tried to modify the GRUB configuration. I have tried editing /etc/udev/rules.d/...
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1answer
66 views

How to hide grub unless key is pressed?

I have 2 OSs Windows 8 and Kubuntu 16.04. Kubuntu is my primary OS. I would like my laptop to boot directly into Kubuntu, unless I press SHIFT key during boot to make Grub menu visible. Again. I want ...
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43 views

Boot-Repair: “core.img can not be found”

Upon installation of Ubuntu 16.04, and two reboots, my computer fails to boot into Ubuntu. It gives me the message "Reboot and select proper boot device or insert boot media in selected device and ...
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1answer
58 views

how to transfer hard drive from on pc to another, HDD contains grub (dual boot win10 and ubuntu gnome)

I need to transfer my SSD that has dual boot Windows 10 and Ubuntu Gnome 3 to my secondary PC. I tried to simply take the disk out and put it in that secondary pc but than I'm having problem loading ...
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1answer
20 views

Ubuntu 14.04 BIOS skipping and cannot change display settings

I just started having a couple of problems with Ubuntu that occurred at the same time, which makes me thing they are related. I dual boot into Ubuntu and Windows and all of a sudden my BIOS screen ...
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11 views

Ubuntu cannot boot through logical UEFI partition. But boots fine through primary partition on external drive

recently I installed Ubuntu on UEFI mode to see how it boots. I however, could not get it to boot through UEFI on a Logical EFI (a small FAT32 partition with the boot flag on) partition on the HDD. In ...
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27 views

Enters Grub Rescue on boot [duplicate]

When I boot up my Ubuntu laptop, it always boots into Grub Rescue that I have absolutely no idea of... Can anyone help me? Thanks
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21 views

Shutdown Freezes on Ubuntu 14.04 (2015 Macbook Pro Dual-Boot)

I recently did a dual-boot on my 2015 Macbook Pro Retina. I opted not to use rEFInd, instead selecting sda1 (/boot/efi) as the mountpoint for my boot partition. I cannot shut down my computer without ...
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1answer
24 views

Recovery Windows boot entry

so I had Windows 10 in my laptop. I decided to install Ubuntu having a dual-boot system. For some reason I thought it would solve some issues I was having (not relevant for this case) if I formated ...
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1answer
39 views

Ubuntu installer freezes while installing grub2

I am trying to install Ubuntu desktop on my pc. During the installation, the installer freezes when installing the grub2 package. I have retried several times and it gets stuck in the same spot every ...
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31 views

Multiple active partitions error while booting full Ubuntu from USB on different computers

I followed exactly everything listed in this guide to install complete Ubuntu onto my 32gb USB Install Ubuntu directly to USB Then I restart my laptop, pressed F12 and I see another option named "...
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2answers
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Ubuntu messed up my Windows 10 boot

I booted a Ubuntu 16.04 Live USB and installed onto an external HDD. In the partitioning step I had it install grub to the external HDD, not my internal Windows 10 HDD. But when I rebooted the ...