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 to set default kernel in GRUB without Grub Customizer?

After the recent update I wasn't able to start my system (black screen). So I powered off the PC and turned it on again. Saw the following grub menu: Ubuntu Advanced options for Ubuntu System setup ...
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cant repair grub after reinstall windows 7

was linux ubuntu 16.04 + windows 7. I reinstall windows 7. Now cant repair grub. Nothing helps. my info http://paste2.org/V4Y7vW1U about try: boot-repair - do not work with msg "please close all your ...
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2answers
22 views

After installing BURG my computer no longer boots Windows.. someone please help

Ok so to start with I have an Alienware X51 R3 desktop computer. Yesterday I decided that I wanted to be able to dual-boot Windows 10 (the default OS) and Ubuntu 16.04. So to do this I freed up 40g ...
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1answer
1k views

Computer boots to Grub command line

I've three hard drives with Windows 8.1.1 installed on the first SSD and then Ubuntu 14.04.1 LTS on the third HDD. In BIOS I've chosen to launch 1. ubuntu 2. ubuntu 3. Windows Boot Manager 4. Windows ...
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2answers
26 views

grub menu can't be dispalyed

I have installed Ubuntu 14.04 along aside Windows 10. While booting Ubuntu is not appearing instead its directly opening the Windows os. The grub menu is not found, its hidden.
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3answers
278 views

Windows 10/ Ubuntu dual boot suddenly doesn't give option to boot into ububtu

I have a dual-booted pc with windows 10 and ubuntu 14.04, which has been working just fine for a few months now. I noticed yesterday, however, that now when I restart my computer it boots straight to ...
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1answer
18 views

How to Activate Zswap Successfully in Ubuntu 16.04?

Condition: to activate zswap module in Ubuntu 16.04 successfully I have in /etc/default/grub # If you change this file, run 'update-grub' afterwards to update # /boot/grub/grub.cfg. # For full ...
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14 views

Is there any way to install ubuntu alongside win 8 in HP laptop?

In my HP Pavilion with pre-installed win8, I had tried to install ubuntu latest version and 15.10 also many times with different ways alongside the win8 but all went in vain. I cannot understand why ...
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1answer
15 views

ubuntu 14.04 boots; login screen freezes: no GRUB menu; unable to access recovery boot mode

I'm new to Ubuntu. Ubuntu 14.04 is the only installed OS on this desktop computer. Since my last update approx. July 20/2016, I can boot but when I get to the login screen, everything freezes: no ...
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2answers
60 views

How to boot to grub by default?

My laptop normally shows the GRUB boot menu with options to boot to Ubuntu or with windows boot manager. I pressed escape by accident and then typed in exit in the GRUB command line. Then I pressed ...
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11 views

Arrow down key initially shows Editparams page

I have several partitions, first partition with Ubuntu and second with Windows 7. When grub2 is loaded, it shows all the partitions avialable. But then, when I click down arrow key to choose another ...
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1answer
1k views

Can I have two distros on the same partition using btrfs?

I'm using btrfs successfully and have luckily separate home and system partitions. Using Ubuntu 13.10 and wanting to test 14.04, how can I do this using the btrfs file system? The system has an EFI ...
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2answers
4k views

Boot loading problem after Wubi installation of Ubuntu 12.04 on Windows 7

I was new in Ubuntu OS and I was just trying to use wubi windows installer to get a Ubuntu first for hands-on. I followed exactly the same as the instructions and after reboot win7, there is no ...
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0answers
14 views

What needs to be taken care of after changing the UUID of the EFI system partition?

I need to change the UUID of my EFI partition (background: see below). After changing the UUID -- what do I need to take care of (in order not to mess up the system)? Background: After installing ...
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0answers
30 views

X windows hanging during Ubuntu boot

I was able to figure out the cause of this problem I was having Unable to boot Ubuntu 14.04. The X server is refusing a connection. I was able to boot by pressing shift continuously and I was able to ...
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29 views

After rebooting, suddenly '/dev/disk/by-uuid/xxxx' doesn't exist

Similar versions of this question has been asked here, but none of the solutions presented on those questions seemed to solve my particular problem, with its particular variations. So, I tried to ...
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12 views

Ubuntu 16.04/GRUB: Cannot resume hiberanted Windows 10

I'm running Ubuntu 16.04 and Windows 10 on an ASUS noteboook. GRUB shows me the menus to boot Ubuntu 16.04, Windows 10 and Windows 10 Recovery. Booting Ubuntu and Window Recovery works, but when I ...
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1answer
214 views

i only have one resolution 640x480 desktop looks zoomed in

ok i fixed this once but have no idea what i did system crashed and now im back to just entering random stuff that dosnt work off the 300 fourm pages about it. im conserned about edinting things that ...
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13 views

Sony Vaio takes hours to boot

I have a Sony Vaio SVF15213CBB with both windows 8 and ubuntu 14.04 that I use often. Yesterday, I tried to start the computer but nothing happened, it made the noise of the hard drive running and lit ...
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1answer
282 views

Windows doesn't show up in grub2 can't access BIOS or boot with CD

I installed Ubuntu yesterday I had 3 partitions: c:/ Windows d:/ other files w:/ linux mint when installing Ubuntu I chose 'replace linux mint' problem: After rebooting Windows didn't show up in ...
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16 views

Interal Hard Disk not found after installing BURG to update grub

Hello I have an Alienware X51 R3 desktop computer, it orginally came with Windows 10, but I wanted it to be able to duel boot with Ubuntu 16.04. So after successfully installing it and having the ...
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21 views

Black Screen when Booting Ubuntu from External Hard Drive

Due to problems with my SATA controller, I installed Ubuntu onto an external hard drive so I could work off that until I get a new computer. The external hard drive was a 500G NTFS system used for ...
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25 views

4 operating systems boot problem Ubuntu , windows , fedora and Kali [on hold]

It's kinda confusing , but I have these systems with grub loader I think fedora was holding the boot , after windows boot crashed I tried fixmbr and it completely erased other oSes from boot menu , I ...
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3answers
36 views

Unable to enter BIOS setup utility before grub bootloader appears

I have a Dell Inspiron 7537 with a Core i7 processor. I used to dual boot Windows and Linux, which was fine. However later, I ended up booting from Ubuntu 16.04, and making that the only OS installed ...
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14 views

No selection in Bootloader

I'm new to ubuntu. Yesterday I installed ubuntu 16.04LTS (as dual boot with windows 8.1) and now I'm having a problem with bootloader. When I switched on my laptop there'll no selection option for OS. ...
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12 views

Trying to install ubuntu-16.04-desktop-amd64 through pendrive

i have already deleted my last ubuntu 14.04 drive for some purpose, but now, when i was trying to install ubuntu-16.04-desktop-amd64 through pen drive and i was getting some black screen written on it ...
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16 views

Reinstalling grub2 from an ubuntu live usb

I've installed FreeBsd along with Arch and Windows in place of Ubuntu. So initially I had Ubuntu, Arch and Windows. I did something wrong and now it boots in grub menu. I've created a live ubuntu ...
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1answer
29 views

Unable to boot Ubuntu 14.04 suddenly

I was doing a lot of system installs such as GL, cmake etc. I finished installing and I am unable to reboot Ubuntu 14.04 LTS. I ran the hardware diagnostics and no errors were found. It starts and you ...
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1answer
13 views

Ubuntu 16.04 LUKS passcode does not appear

I installed an encrypted version of Ubuntu on my PC. If I start my computer appears this login screen: I'm unable to type in the passcode. Nothing appears. Also if I type in the correct passcode and ...
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0answers
17 views

Not able to install ubuntu 16.04 alongside window 8.1

I have tried to install the ubuntu 16.04 alongside window 8.1 but it is not showing option of install alongside windows boot manager. further on selecting something else and there it is only showing ...
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1answer
30 views

Unable to boot from USB on Windows after removing dual booted linux

I had previously installed elementary OS on my windows laptop and was trying to install normal ubuntu alongside it, but I kept having the issue of not being able to boot from the USB with the ubuntu ...
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2answers
27 views

black screen after installing Ubuntu

Hopefully this has an easy solution. I recently installed Ubuntu using the Ubiquity installer for the latest release. Due to my hardware, in order to install it from my USB, i had to use the nomodeset ...
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1answer
10 views

How to access recovery console without using grub?

So I just got a computer from work for free but it's a rather old iMac, probably from 2006, and it has Ubuntu on it. I have no clue how to use this software and the previous owner is unknown so I can'...
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29 views

How do I add an ID to a menu entry to GRUB config?

I want to add an ID to any menu entry in the Grub config and then auto generate the configuration by changing /etc/default/grub file DEFAULT_GRUB = desired_linux_version I already did but grub ...
2
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2answers
41 views

Dual boot option menu

I installed Windows 7 and 64 bit Ubuntu 14.04 LTS on my PC and both worked very smoothly. Since I updated by ubuntu last month, the system starts directly to ubuntu OS. I can't see GRUB menu, which ...
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1answer
4k views

Can't find Windows 10 on GRUB

I'm a linux newbie and ran into this problem when trying to install Ubuntu as dual-boot with my Windows 10. I've done that before with Windows 7, with wubi. But I read that wubi wasn't the preferred ...
5
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1answer
97 views

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 ("...
2
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1answer
18 views

Can't boot from clean install

I've recently been having trouble booting my computer. I tried to re-install some NVIDIA drivers after an update broke CUDA and led to some poor video performance. However that led to some conflicts,...
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2answers
24 views

Booting ubuntu from USB drive using grub and then resizing parition

I currently have a dual partition - windows and ubuntu, setup on my computer. However, I would like to resize my ubuntu partition to create more space. I believe to do this from ubuntu I need to ...
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1answer
40 views

How can I convert Ubuntu to UEFI

I want to install Ubuntu 14.04.4 in UEFI mode alongside windows 8, which is already in UEFI mode. My partition scheme is GPT. Ubuntu is on /dev/sda5. Legacy bootloader on /dev/sda. Windows on /dev/...
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3answers
121 views

Lenovo IdeaPad 100s grub installation failed and disk disappeared

A few days ago I bought a cheap Lenovo IdeaPad 100s and it's a great laptop shipped with Windows 10. Since then I've been trying to install Ubuntu on it but I have failed to do so. What I did is I ...
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36 views

Ubuntu restart works fine but shutdown does not?

Why does my Ubuntu not shut down properly? My Ubuntu restart works fine but shutdown does not properly. I modified the grub like this: GRUB_CMDLINE_LINUX_DEFAULT="quiet splash reboot=pci" My ...
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0answers
14 views

Windows 7 screen does not shows after dual booting of my Dell Inspiron 15 3542 Core i3 Laptop

I recently tried to dual boot my Dell Inspiron 15 3542 Core i3 laptop (64 bit) using Ubuntu 16.4 which already had Windows 7 on installed. The process of dual booting completed successfully but when ...
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0answers
32 views

The mysterious : Error parsing PCC subspaces from PCCT

I'm a long time LTS Ubuntu user, I recently changed my aging ASUS notebook to a Lenovo T450. The latter came with windows 10, so I decided to wipe it with the fresh 16.04 Ubuntu. The install (via a ...
0
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1answer
34 views

Reinstalling Ubuntu as a solution to my issue

As I've posted before, Installing Windows 8.1 over Ubuntu has caused the deletion(?) of grub, and thus I cannot get into Ubuntu. I have tried both repairing grub through the command line on a Live USB,...
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1answer
20 views

14.04 login loop; tried suggested solutions but no luck; will work with older linux kernel

I'm still rather new to Linux. Login loop started earlier this week after an update that required a reboot. I searched here and found suggestions for doing a package repair via "recovery mode" (did ...
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1answer
16 views

NumLock turns off after GRUB

In the BIOS settings, NumLock is turned on. The NumLock will continue to turn on but after you choose your OS with GRUB it will turn off automatically. The NumLock is still on while on GRUB screen ...
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1answer
270 views

no grub menu after ubuntu 15.10 install : dell xps 9350

Was discussing my woes dual booting win10 and ubuntu on a new dell xps 13 9350 in this q, and thought this issue merited its own question. what I have done so far did a clean install of win 10 ...
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121 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 ...
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0answers
17 views

Lenovo G580 Zorin OS killed my bios. I can no longer access the bios or boot menu [on hold]

I am struggling with a very serious problem with my old laptop. I installed Zorin OS to my laptop and now Every time I try to access the bios or the boot menu It says please wait after pressing the ...