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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Grub2 not loading in dual boot Windows 8.1 and Ubuntu 14.04 LTS on HP 4540s

Iam using a HP 4540s Notebook with Windows 8.1 Uefi installed. I followed all the steps for Ubuntu 14.04 LTS instalation and i got it all working but to load my dear Ubuntu i have to press F9 to ...
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42 views

Ubuntu won't boot from USB Stick on my PC - Black screen - But boots on another PC

My PC is running Ubuntu and Windows. Now I installed Ubuntu from a CD on my PC to a USB Stick successfully. I went to another PC and I could boot to Ubuntu from it (grub menu was showing) and ...
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20 views

Keyboard doesn't work during bootup/grub if Wacom tablet is plugged in

I did an install of 15.04 on a second hard drive last night. After install everything was working great, initially. I tested that I could boot into Ubuntu from GRUB, into Windows, and into the BIOS. ...
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1answer
41 views

I Have 2 Ubuntu options in Bios even after uninstalling the partition of elementary os freya in windows?

I've set the bios to automatically boot to windows 8.1 but there are 2 ubuntu options in the Bios even after I deleted the partition in which I installed elementary os freya by logging into windows ...
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37answers
304k views

How do I remove or hide old kernel versions to clean up the boot menu?

Every time I install a new Linux kernel, it gets left in the grub_config, making the boot menu longer each time. I know I can manually search through the installed packages and remove them. Does ...
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0answers
215 views

MacBookPro10,2 thunderbolt intel issue

I'm running (k)ubuntu 14.04 on a MacBookPro10,2. everything works great exceppt when attached to a thunderbolt screen I'm observing high fan naisle. probably caused by a kworker issue. powertop shows ...
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0answers
16 views

Wifi does not work correctly after editing etc/default/grub

I've searches the net for hours trying to solve this, and can't find anything to help. My issue is thus: My Ubuntu 14.04LTS wasn't shutting down properly. This is the fourth time I've reinstalled ...
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52 views

minimal bash-like line editing is supported. Problem after a fresh installation of ubuntu 14.04.2

So I had ubuntu on my NUC. It was great I have to power on and ubuntu start. But I had a problem and I had to reinstall everything. I erase everything and install to have a fresh ubuntu. Everything ...
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0answers
33 views

Configuring grub-pc, I cannot select an option

I am trying to select /dev/sda for GRUB when running "sudo apt-get upgrade", however no matter which key I press it treats it as "ENTER". This means if I press the spacebar to select /dev/sda for ...
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1answer
110 views

No grub after switching to “boot in secure mode” (Windows8) after Ubuntu being installed

I installed successfully Lubuntu 14.10 alongside Windows8. Being tired of seeing "Booting in insecure mode..." as the PC turned on, I enabled again "boot in secure mode" from Win. As a result the Grub ...
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0answers
13 views

Boot Ubuntu on second pc from External HDD

I had installed ubuntu un an external harddrive that I used with my laptop to dualboot ubuntu with windows 8.1 I had installed the grub on the external drive so that whenever I unpluged the drive I ...
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0answers
159 views

Black screen after boot in Ubuntu 15.04 (x86_64), Intel HD5500 (i915 driver) (reposted)

I know this question has been asked so many times (since 2011 from what I found out), but none of the responses seem to resolve the issue in my laptop, so apologies for the repetition. I tried ...
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2answers
38 views

Laptop boots directly to Windows, Ubuntu alredy installed and refind not working

So i have this weird problem on a HP laptop Atheros. I first installed windows 7 and then Trusty Tahr,both on Uefi mode with the gpt partition. The problem is that when i turn it on, it goes ...
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1answer
96 views

How to start lightdm services at startup

My system is running Ubuntu 15.04 and I've changed default boot to "text" instead of "quiet splash" by going through answer by @Bruno Pereira How do I disable X at boot time so that the system boots ...
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0answers
12 views

costum grub2 menuentry for mdadm lvm partition

I want to set a new entry in /etc/grub.d/40_costum to boot from a mdadm/lvm partition. I know how to do it with standard mbr/gpt partition like (hd0,1)/vmlinuz. How do I use raid1 and lvm grub2 ...
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0answers
38 views

Ubuntu does not boot after install when another hdd/storage is present

I have installed Ubuntu 14.04 on my desktop and Ubuntu does not boot after install. It requires me to use boot repair https://help.ubuntu.com/community/Boot-Repair to fix it so it will boot ...
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1answer
35 views

Operating System not found (Grub error)

Certainly after a reboot my pc I am getting following message in a grub welcome screen GNU GRUB version 2.02~beta2-9ubuntu1 Minimal BASH-like line editing is supported.For the first word, TAB lists ...
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0answers
20 views

Recent GRUB update, choices on menu

On 2015-05-15 I applied an update from Software Updater. An option box appeared and gave me some choices about what to do with the GRUB update. I don't remember exactly but the choices were ...
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0answers
17 views

Upgrade Ubuntu without GRUB

I have a very odd setup and I would like to upgrade my Ubuntu installation while maintaining this setup. Here's the situation: My actual HDD (let's call it "sda") has a Windows installation on it, ...
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1answer
30 views

Installing Windows 7 after installing Ubuntu on btrfs: how to restore boot?

I've looked at the answers on this question, but none of them solved my problem: How can I repair grub? (How to get Ubuntu back after installing Windows?) My system is partitioned as follows. ...
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0answers
16 views

initramfs, faulty or not working partition

I've had a problem plaguing me for a few days. I had a buggy version of 14.04 installed for a while now, and I told myself enough is enough and plugged a USB flash drive with the 15.04 iso on it and ...
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0answers
14 views

grub-install looking for /,

Installing regular ubuntu updates via software updater gives me the following error: grub-install: error: cannot find a GRUB drive for /,. Check your device.map. I have no idea why it is looking ...
2
votes
1answer
5k views

Insmod error in grub: symbol not found:grub_realidt

I have a dual boot PC with Windows 7 and Ubuntu. I upgraded from 12.04 to 12.10 and then to 13.04 and since then I have not been able to boot because the PC goes into grub rescue with the error "File ...
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0answers
37 views

Can't see windows 8 in grub after installing ubuntu 14.04

I installed ubuntu 14.04 on my Lenovo flex 2 alongside with windows 8. After the installing, I could see windows at grub boot-loader, but after clicking it I got an error. Trying to fix it, I followed ...
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1answer
48 views

Ubuntu 14.04.1 server won't boot; cannot get past “grub rescue”

My Ubuntu server was not responding so I hard rebooted it and it will now not boot up at all. My Ubuntu server is an HP Proliant box running Ubuntu 14.04.1. The boot partition is a 16GB USD drive, ...
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1answer
31 views

Automatically Boot into Ubuntu without Live CD

I am trying to boot into my Ubuntu server and after updates, I can now only boot in with a live Ubuntu CD in the Grub terminal with these commands: grub> set pager=1 grub> set root=(hd1,gpt2) ...
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0answers
14 views

how save changes when boot iso from hdd in grub2?

i want to boot ISO file of my linux distribution in Grub bootloader. i used this code of menuentry in grub.cfg: menuentry "ISO BlackArch" --class iso { set ...
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0answers
27 views

update-grub does not see another linux

I've installed Gentoo from Ubuntu on /dev/sda4 using this tutorial, which uses Ubuntu instead of LiveCD. But tutorial did not have anything about updating GRUB. So I did it as usual: sudo ...
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0answers
21 views

14.04.2 keeps freezing 15mins after start up and no screen

Every time I turn on my desktop the bios show up then after that it is a blank screen. I restart the system and then goes in to grub menu i select ubuntu. Ubuntu is the only thing on my system. Then I ...
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1answer
43 views

Option to boot to Windows 7 disappeared. Ubuntu 14.04

I had a dual boot system with Windows 7 and Ubuntu 14.04. The dual boot used to work perfectly but after some days of happily using Ubuntu I realized that the option to boot into windows 7 ...
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0answers
39 views

Ubuntu 14 LTS server going to sleep/shutdown

We recently transitioned from Ubuntu 12 to Ubuntu 14 server installations and started to notice that the servers are occasionally go to sleep after couple of hours to days intermittently. ...
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0answers
20 views

Can the live CD repair boot problems? [duplicate]

I would like to know if the live image of a Installation disk can be used to recover the system or Grub?
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1answer
116 views

Ubuntu on DigitalOcean does not use the latest kernel

On a digialocean's VPS, I have some linux kernel installed. This is the result when I do sudo update-grub : Found linux image: /boot/vmlinuz-3.16.2-031602-generic Found initrd image: ...
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1answer
56 views

WinUSB Installation Error

I'm trying to create a bootable windows USB stick, but when I get to the installation process, it gives me this error: > Installation failed ! Exit code: 512 Log: Formating device... Mounting... ...
2
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0answers
57 views

Black screen after boot in Ubuntu 15.04 (x86_64), Intel HD5500 (i915 driver) [duplicate]

I know this question has been asked so many times (since 2011 from what I found out), but none of the responses seem to resolve the issue in my laptop, so apologies for the repetition. I tried ...
12
votes
4answers
18k views

How can I add the Memtest86+ options back to the Grub menu?

After having installed the 64bit version of Ubuntu 12.04 on my Lenovo B570 I ran into the same problems I had when installing 11.10 with Grub not playing nicely with a uEFI system. I used the same ...
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1answer
516 views

grub rescue with dual boot 14.04

I have dual booted Ubuntu from a usb. I installed it, and at first it was going slow. I then rebooted the whole system and tried to log in. again, was moving slow (move mouse and cursor would lag ...
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1answer
60 views

Gennymotion unable to load virtualbox engines

When I start gennymotion this is the error message shown: Unable to load VirtualBox engine. Make sure that it is properly installed before starting Genymotion. For more information, please ...
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2answers
120 views

Ubuntu 15.04 UEFI installation issue on Dell Vostro 3460

I downloaded the RTM ISO of Ubuntu 15.04 (Vivid Vervet), and I created with the latest version of Rufus the UEFI/GPT installation disk. I tried to begin the installation in the UEFI-mode, but it ...
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0answers
18 views

How do I get past Grub and boot into windows?

I went to go uninstall Ubuntu from my laptop because it wasn't dealing with 2 operating systems and such. A tutorial I read on how to uninstall said Ubuntu can be Uninstaller with going into the ...
1
vote
2answers
171 views

ProLiant Microserver Gen8 clean install drops into grub rescue shell

I've just bought a new HP ProLiant MicroServer Gen8 a few days ago, and have been trying to install Ubuntu Server 14.04LTS on it since then, but I'm having an issue where it's not booting after ...
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0answers
13 views

Boot in text mode break X

this is my first question and i hope not be breaking any rules. I was trying to boot at text mode and followed these articles How do I boot into true text mode? Disable automatic unity launching? ...
2
votes
0answers
106 views

Ubuntu installation VS UEFI on Dell XPS 13 9343

I have heard that there are problems with Ubuntu on the Dell XPS 13 9343, however - I cannot even make the boot menu pop-up when booting from an installation pendrive (lastest Ubuntu, lastest ...
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0answers
48 views

Stuck on login screen after upgrade to 14.04

I just upgraded from 13.10 to 14.04. The new system worked perfectly while the computer was still on, but after I shut it off and tried to boot, I started getting some really strange errors. First of ...
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0answers
20 views

Ubuntu 14.04 will not load after grub when it did before

I have been using ubuntu 14.04 for a few months now and it's been working fine, today I can't load after the grub menu, all I get is a black screen with nothing happening. Is there any way I can ...
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1answer
4k views

Start-up error (ALERT! /dev/disk/by-uuid/xxxxxxxxx does not exist. Dropping to a shell! )

I got serius problem with ubuntu 14.04 please help me. When i start my computer its says following errors: — Boot args (cat /proc/cmdline) — Check rootdelay= (did the system wait long enough?) — ...
23
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3answers
64k views

Failed to get canonical path of /cow

I am trying to install Ubuntu 12.10 for quite some time, and passing hurdles one by one. Now I am in a situation as follows. I have got a PC and 10 GB HDD which will be totally dedicated to Ubuntu so ...
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2answers
22 views

Should grub be removed before reinstalling Ubuntu?

I once installed Ubuntu alongside Windows 8. I then removed Ubuntu by formatting the partition. Ubuntu was gone but the grub remained. Should I remove grub before installing Ubuntu again?
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2answers
681 views

Dual-Boot: Win7 partition loads without error, but display doesn't work

I am having a strange dual-boot issue that I haven't been able to find an answer for anywhere. I have an Ubuntu 14.04 box, which I have created a secondary partition on for Win7. My setup process: ...
3
votes
1answer
204 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 ...