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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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 ...
0
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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 ...
1
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1answer
70 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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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 ...
3
votes
1answer
141 views

GRUB shows kernels from previous ubuntu version

I have just updated Ubuntu to 16.04 version and when I boot, grub shows the kernels from the previous Ubuntu version. How can I delete them? (not only in the grub list but to actually free that space ...
0
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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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2answers
55 views

How to fix GRUB [duplicate]

I have Ubuntu 14.04 dual boot with Windows 8 So I decided I need to reinstall Ubuntu to increase its space. I went to Windows 8 and deleted the Ubuntu partitions and now I can't turn on my computer ...
0
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0answers
46 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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votes
2answers
4k 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 (...
0
votes
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 ...
0
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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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0answers
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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1answer
2k views

How to change the header title and help message in GRUB menu?

How to change the header title and help message in GRUB menu? My Grub version is 1.99-21ubuntu3 and I'm using Ubuntu 12.04 LTS.
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0answers
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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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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0answers
22 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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2answers
9k 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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0answers
416 views

Dual boot Ubuntu 15.10 alongside Windows 10 on Acer Aspire E 15

I have an Acer Aspire E 15 laptop, which I upgraded to Windows 10 from the pre-installed 8.1, and I've installed Ubuntu 15.10 alongside Windows through USB boot installation. I now have a 32GB ...
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0answers
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
38 views

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 ...
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1answer
51 views

Ubuntu 16.04 does not boot correctly from Toshiba Notebook (EFI)

Some weeks ago I installed Ubuntu 16.04 on my Toshiba P50t-A Notebook on a SSD (planned as Dualboot, so created all necessary partitions with gparted and some adjustments with cgdisk in cases where ...
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votes
1answer
50 views

How do i handle issue with GNU GRUB?

What happened is that i was trying to install gfsview on ubuntu 12.04, for that it was asking for dependencies like libgtk etc. When i did install for dependencies it asked for ifupdown and as i was ...
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1answer
31 views

How can I remove ALL grub2 files and reinstall them? In other words, reset grub2?

I have been using Grub-Customizer ever since I've had Ubuntu, but I've noticed it having more and more issues lately. About two weeks ago, I reordered the grub entries and put them in sub-menus using ...
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0answers
189 views

Ubuntu Kernel problem

I'm having troubles to boot my fresh Ubuntu 16 installation. Installed kernels: 4.4.0.24-generic 4.4.0.22-generic 4.4.0.21-generic Here are the results when booting from any of these kernels: ...
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0answers
39 views

ALERT! /dev/mapper/edbunto--g-root does not exist Error. Dropping to a Shell! [duplicate]

So I am stupidly new to Linux, like I wasn't even the one who installed it unto my computer. I'm am using Ubuntu as the Linux software and I was tinkering around when I found something called Disk ...
2
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1answer
49 views

How to move GRUB from the MBR to another partition?

So, I'm fairly new to Ubuntu. My current set-up is dual booting Windows 10 and Ubuntu, what I want to do is move the GRUB from the MBR to another partition so I can encrypt the Windows 10 partition ...
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votes
1answer
55 views

Install Ubuntu to usb drive and boot it to Uefi and Bios system.

So I'm totally new to linux. I don't want to install to my internal HDD. So I've been trying to install it independently on a usb so i can boot it on any pc (UEFI or BIOS). So i created a live usb ...
2
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0answers
49 views

Problems installing Windows 10 after Ubuntu

I know that the recommended way of dual-booting is Windows first, Ubuntu second but when I purchased my computer, I got fed up with Windows' crap way faster than I expected so I impulsively clean ...
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votes
0answers
29 views

Switch Grub bootloader partition

I've installed Xubuntu 16.04 as a dual boot to test something. As i restarted the PC i had the options of the bootloader from Xubuntu but i want to keep the options from my mint system. I remember ...
0
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0answers
51 views

Grub 2 install error: grub-install: error: /usr/lib/grub/i386-pc/modinfo.sh doesn't exist.

I am trying to install grub2 from a live CD of lubuntu 16.04, I am following this tutorial, after I mounted the /dev/sda1 in the mnt folder using this commands sudo mount /dev/sda1 /mnt sudo mount /...
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0answers
13 views

HELP! Can't boot PC. Ubuntu Bootloader Help

Installed Ubuntu on a partition on my HDD and put the Bootloader on the SSD. Whenever the PC starts up I get "Minimal bash line editing is supported". Can't type anything. Eventually, got my PC to ...
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0answers
49 views

Encrypted drive boot failure - root and/boot not mounted

I've got an Ubuntu 14.04 system with two LUKS encrypted disks fortuantely the older disk is bootable, because as of today the newer one isn't. After some updates, including initramfs-tools, boot now ...
3
votes
1answer
4k views

Ubuntu 15.04 on USB with UEFI

My desire is to do the following. The computer has W8.1 on the HDD and it is using UEFI I want to install Ubuntu 15.04 on 32GB USB stick in a way that I can install regular updates and it remembers ...
0
votes
2answers
34 views

error no such partition. Grub rescue mode [duplicate]

I want to remove the ubuntu operating system from my laptop so I formatted the ubuntu drive (previously had dual booting) But now I run in grub rescue mode. I checked the other forums and tried the ...
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votes
0answers
22 views

Could not multiboot ubuntu yosemite

i'm trying to multiboot ubuntu and mac os (yosemite). First i installed mac os then ubuntu,while updating the grub the mac os is not shown, but boot flag is set in the partition where mac os is ...
191
votes
9answers
302k views

How can I repair grub? (How to get Ubuntu back after installing Windows?)

I installed Windows 7, which ate Ubuntu's boot file. When starting up the computer, it now goes straight to Windows, without giving me the option of booting Ubuntu. How can I get Ubuntu back?
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votes
1answer
90 views

Issue with ubuntu/linux boot and grub [closed]

I have a windows box that I wanted to trial Ubuntu with. So using two usb sticks I used one stick as a Ubuntu installer and installed it onto the other stick. I changed the bois to boot from usb ...
0
votes
0answers
20 views

Ubuntu failure to load/boot on Win 8.1 laptop

I am attempting to install Ubuntu 14.04.4 on a laptop that originally came with Windows 8.1. I wiped the disk and manually set up UEFI partition first, as followed by one at /, then /home, then a ...
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0answers
36 views

Can't boot Windows 7 after installing Ubuntu - confusing partition layout

Yesterday I made a 20 GB partition on my win7 drive, and started installing Ubuntu on it from a USB drive. The installation had just broke, computer restarted and I got a message Your boot files are ...
1
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0answers
40 views

Installation failure: Can't access bios [closed]

I tried installing Ubuntu 14.04 parallel to my Windows 8 on a different partition using a bootable USB drive. The installation stopped while working on something with grub, so I restarted my computer. ...
1
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0answers
26 views

SeaBios overrides boot; Error: no bootable device

So I did all the steps to dev on my acre 15.6 chromebook, installed this, and reset. The moment I reset, SeaBios pops up and says no bootable disks found. I assume that my entire disk has been wiped ...
4
votes
1answer
183 views

Ubuntu won't boot after GUI crash, now bad superblocks?

I'm experiencing some serious problems with Ubuntu 14.10 for a while. Everything was working fine for a few months on version 15.04, after which my system just started crashing out of nowhere, by what ...
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votes
0answers
59 views

How to force HP Laptop boot into GRUB - step by step

I always have to press F9 to change boot order when startup in my HP Pavillion. I have dual boot Ubuntu 16.04/Windows 10. I'm using Ultrabook HP Pavilion Touch 14-n070br (ENERGY STAR). It should be ...
1
vote
0answers
23 views

Invalid arch-independent ELF magic [duplicate]

After installing Xubuntu 16.04, on the first reboot I got the invalid arch-independent ELF magic message and computer is sitting in grub-rescue prompt. This is a Dell Latitude E5510 that previously ...
2
votes
1answer
148 views

How to install Ubuntu 16.04 Server from USB drive?

I'm looking to create a folder of ISO files on the my USB drive & access them via the GRUB menu for installation on various machines. So far, the Desktop editions of Ubuntu have booted ...
10
votes
3answers
80k views

How can I add an entry for Ubuntu to the Windows 7 boot menu?

I have the following setup: first partition is windows 7 partition second partition - ubuntu 12.04 partition while installing ubuntu I installed grub2 bootloader to ubuntu partition mbr contains ...
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0answers
75 views

Disable text output on startup?

So I have a Ubuntu 15.10 machine with burg installed. Now when I start my machine and select Ubuntu from burg, before Ubuntu loads, some text output is shown on the screen. Now I don't know what this ...
0
votes
3answers
105 views

How do I uninstall Ubuntu [duplicate]

I'm currently dual booting Ubuntu and Windows 8. Ubuntu is pretty much broken, and everywhere I've looked doesn't have a solution, so I wish to uninstall it. I read that it's possible to uninstall ...
1
vote
1answer
5k views

How to manually add OS in GRUB?

I have windows 8 and ubuntu 12.04 LTS dual booted.. however, I have a partition with Windows 7 which does not have an entry in bootloader. How can I manually edit the GRUB so that I can get Windows 7, ...
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vote
2answers
98 views

How to dual boot Windows 10, and Ubuntu on a HP Pavilion G6?

I've been trying to set up a dual boot with Ubuntu on my Windows 10 HP Pavilion G6 Laptop for a couple of days now. I've followed countless tutorials, on here, and on Google. I manage to install ...