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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nodmraid and Installing Ubuntu 14.04

I'm attempting to install Ubuntu 14.04 alongside with Windows 10 on my Asus X555U. I've installed Ubuntu many times before in the past so I expected it to be a breeze (clearly it wasn't). After ...
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1k views

RAID1 “conflicting device node” message on startup

I'm dual booting Win8.1 and Ubuntu 14.04 (Gnome Classic). I have RAID1 set up (on Asus Z87-A motherboard) with Win partition, Ubuntu partition, and NTFS partition for data. On Ubuntu startup, I see ...
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2k views

Reinstalling Grub - shows no volume groups found, how do you fix this?

I have a full backup which I had restored onto a new built system on Ubuntu 12.04 The backup did not include /dev /proc /sys folders. Upon rebooting, the grub show the following errors error: no ...
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27 views

No ANG1 Error when booting from Ubuntu in a dual boot with Windows 10

I dual booted Windows 10 and Ubuntu 14.04. I used EasyBCD to get to the Grub menu where I could select which OS to load. It was all set up and worked. Recently, however, I tried to boot it up again ...
3
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55 views

Just installed Ubuntu but booting error displayed “Insert system disk in drive.”

Until a few days ago I was mainly a Windows user, since I couldn't install linux via dual boot on my computer. I tried everything several times, did everything right, but the problem was that after I ...
3
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60 views

How can I begin to track down this Wi-Fi problem?

This is not your run-of-the-mill "what's wrong with my Wi-Fi" question, I'll guarantee you that... I inherited a Lenovo Ideacentre Stick 300 and have been trying to get Windows 10 off of it and ...
3
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77 views

Booting from USB Grub 2 Invalid EFI

This is my first time on the forums here, but I recently installed ubuntu 14.04 and would like to re-install it via USB. I have been trying for about two days now to use the grub menu and have looked ...
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80 views

Cannot type disk decryption password during boot

The GUI loads to input the decryption password, but when I type, the characters appear in the top-left of my screen, as though I was typing at a console without a command prompt. Forcing power-off ...
3
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129 views

Ubuntu 15.10 installed on MacBook won't shut down properly

I have installed Ubuntu 15.10 on my MacBook using rEFIt, and the problem is now it won't shut down properly. Every time it reaches the very last part where it's about to power off and then just hangs. ...
3
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0answers
216 views

Ubuntu 14.04.3 LTS not Starts GUI

I installed Ubuntu 14.04.3 LTS on my HP Pavilion G4 1115br and when I start it does not load the GUI: Ubuntu 14.04.3 LTS problem in not Loads GUI - Part 1/2. After I shut it down manually and start ...
3
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0answers
91 views

How to prevent switch to text mode during boot

I'm trying to get a full graphical boot in ubuntu. That is using burg/grub in graphical mode and launching the kernel directly in graphical mode, without switching to text mode and then back to ...
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69 views

How to prevent the people from using 'e' to change the 'config' in grub?

I'm really stumped this time because, I've tried to configure the 10_linux & the 00_header the /boot/grub/grub.conf I've tried it many times, but unable to protect it with Password Please do ...
3
votes
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194 views

/dev/sda1 /boot corrupted

I am running a Ubuntu 14.04 on an IBM-Thinkpad X61 tablet (no Windows dual boot) and it seems I have corrupted my /dev/sda1 /boot. Symptoms: When I login to home window, a "System Program Problem" ...
3
votes
0answers
500 views

iMac will not boot OS X after installing Ubuntu

I installed Ubuntu alongside Mac OS X on my iMac, following HowToGeek's tutorial. Whenever I boot, I get GRUB with the following options: Ubuntu Advanced Options for Ubuntu Mac OS X 32-bit Mac OS ...
3
votes
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450 views

cannot add memtest86 in Grub menu

I had already seek solution in: How can I add the Memtest86+ options back to the Grub menu? Memtest86+ options are missing in Grub menu However, they still can't solve my problem... what drives me ...
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646 views

How to configure GRUB loader during apt-get upgrade on Ubuntu 12.04

I have a box with Ubuntu 12.04, and just did a apt-get upgrade. I'm presented with a dialogue to update my GRUB bootloader, but with the following message: The GRUB boot loader was previously ...
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votes
0answers
1k views

GRUB_HIDDEN_TIMEOUT and GRUB_TIMEOUT Do Not Accept 0 Value

I am not on a duel boot system, and do not want to view the GRUB boot menu. I have used methods that have worked in the past to change /etc/default/grub to accomplish that ends, but they have not ...
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16k views

A Guide to Install Ubuntu 13.04 using a RAID 0

Getting the error: Unable to install grub in /dev/sda? Because you are using a BIOS/fakeRAID0? If you manage to find this thread consider yourself in luck. I spent the last 48 hours trying to figure ...
3
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570 views

Xorg can't find screens

I recently installed Ubuntu 12.10 on my laptop. It installed successfully, but whenever I boot into it, after the GRUB screen I get a text TTY. I can log in with that and enter command-line commands. ...
3
votes
0answers
73 views

Three file not found errors before Grub menu appears - caused by 12.10 upgrade

After just upgrading to 12.10, I see three Error: File Not Found lines flash up on the screen at the very start of bootup, just before the grub menu appears. The system still works properly after ...
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60 views

Problems with Ubuntu and the Windows 10 Upgrade

This is similar to a considerable amount of previous questions, but with an additional problem added on, so please skin to the last paragraph if you've seen this before. I was running dual boot ...
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0answers
29 views

Device names for internal\external HDDs when installing on external USB HDD

Really sorry to bump in with a silly question, please bear with a newbie. I want to install Ubuntu on an external USB HDD attached to a pre-UEFI BIOS PC with 3 internal HDD/SSDs. The installation ...
2
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0answers
54 views

Corrupt registry: Duplicate entries for /etc/default/grub

Whenever I try to install any package from apt-get, I am getting this error: Setting up grub-pc (2.02~beta2-9ubuntu1.7) ... ucfr: Corrupt registry: Duplicate entries for /etc/default/grub grub-pc ...
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0answers
139 views

Can't type passphrase to decrypt disk

Just wiped out everything on my Macbook Pro Retina Early-2015 (Macbook12,1 or something) and installed Ubuntu. Had to use acpi=off and nodmraid just to get the USB stick to boot. I wanted to have ...
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435 views

Ubuntu 15.10 crashing randomly

Please forgive me as I am new to Ubuntu. Randomly, this thing which I think is called "Unity" will crash, and I will lose system vitals required to operate the computer. The icons in the top right ...
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votes
0answers
266 views

15.10 - Ubuntu does not power off on shutdown

I have been around the internet trying to find the answer and no solution given has worked. I have disabled quiet and splash from /etc/default/grub so I can see the output. When shutting down, there ...
2
votes
0answers
79 views

clearing old kernels has left black screen after login ubuntu 14.04 lts - help

If I have removed files unwittingly in a clear up of old kernels can I reinstall Grub or do something to recover my desktop ubuntu 14.04 gnome? Following instructions on how to clear out older ...
2
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0answers
437 views

update-grub fails /usr/sbin/grub-probe: error: failed to get canonical path of '/cow'

The HD of my computer (/dev/sda) has 3 partitions (/dev/sda1, /dev/sda2, /dev/sda3), each containing a copy of Windows Vista Ultimate (restored from a Clonezilla partition image). Using an Ubuntu ...
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0answers
3k views

grub-install: this GPT partition label contains no BIOS Boot Partition

I have an installation of Ubuntu 15.04 that has been working fine for some weeks. Today, my box locked up to the point I had to power it off in order to clear the error. When I did so, it stopped ...
2
votes
0answers
93 views

Ubuntu doesn't boot (grub rescue - Unknown filesystem)

I turned up my PC like every day, but today doesn't boot normally. After the BIOS POST and the "Loading operative system...", it shows something like this: Error: Unknown filesystem grub rescue> ...
2
votes
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500 views

GRUB not appearing after installing Ubuntu 15.04 on Windows 10 dual-boot

I have recently upgraded from Windows 8.1 to Windows 10. I tried to install Ubuntu 15.04 in dual boot configuration. PROBLEM: The system directly boots into Windows without the GRUB screen appearing. ...
2
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177 views

Error while installing ubuntu 15.04, unable to install grub-efi-amd64-signed

I tried to install Ubuntu 15.04 in my HP lap which has windows 8 OS. While installing, it showed an error that it was unable to install grub-efi-amd64-signed and it also mentioned that the above ...
2
votes
0answers
169 views

Ubuntu 15.04 Visual Glitches

I reinstalled Ubuntu 15.04 onto my computer, and I am receiving some strange graphical/visual glitches when I boot up. First off, there is some black terminal grub screen that comes up, tells me my ...
2
votes
0answers
73 views

Encrypted LVM Disk Password not “in box”

After a recent installation of Kubuntu 15.04 using encrypted LVM, I have the following problem. When I boot the system, the pretty Kubuntu encrypted disk password screen appears, but when I type the ...
2
votes
0answers
527 views

How to choose which OS to start in dual boot with Touch Screen and no physical keyboard?

I (now) own an HP Slate 2(b2a28ut) which it's a fancy piece of technological art. It does look like a tablet itself and it acts like an Android Tablet because of its Capacitive Touch Screen, but it is ...
2
votes
0answers
589 views

update-grub shows “No volume groups found”

Whenever I run sudo update-grub in a terminal, I get the following output: Generating grub configuration file ... Found background image: /usr/share/images/desktop-base/desktop-grub.png Found ...
2
votes
0answers
252 views

How to install kubuntu on Lenovo thinkpad e555

I have been trying to install Kubuntu 15.04 on Lenovo ThinkPad E555. I have created /, /home and /boot partition but as soon as I install it, it doesn't show up on boot screen (it only shows Windows ...
2
votes
0answers
636 views

Windows 10 and Grub not working properly

I recently decided to test Winodows 10 on my HP dv6 laptop with Ubuntu 14 installed. I was able to get Windows up and running without any problems but getting Ubuntu and Windows to boot properly has ...
2
votes
0answers
47 views

No Windows partition available after installing Ubuntu 14 LTS

After an upgrade of Ubuntu from 12 LTS to 14 LTS version GRUB failed to boot. With a boot repair disk ISO on my USB pen drive I found the Windows partition still exists and could be mounted, but the ...
2
votes
0answers
24 views

Used my laptop to install on usb. Now cant boot the hdd install. urgent

Im writing this from my phone because i messed up big time and need to fix it asap. I used my ubuntu laptop to make installed ubuntu on a usb stick (booted from live usb to make it) I choose the usb ...
2
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0answers
38 views

Ubuntu 14.04 Low Graphics Error believe it is a mount error?

I rebooted my Ubuntu 14.04 from terminal 3 days ago and it seems to have undergone a catastrophic crash. Firstly, I got a low graphics error issue. I could not even get to the console, so I removed ...
2
votes
0answers
90 views

Trouble Deleting a Partition Containing Grub

Update: I have resolved one of my problems myself, but still need help to delete a partition. I left the original post intact in case someone has a similar issue and can quickly reference this post. ...
2
votes
0answers
28 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
0answers
215 views

GRUB on my OS X (Hackintosh) disk after uninstalling Ubuntu

I have a Hackintosh with 3 SSDs, each with a different OS on it (OS X 10.10, Windows 7, Ubuntu 14). The problem is that I originally tried installing Ubuntu on the same SSD as the OS X drive AND I ...
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440 views

Ubuntu 14.04 boots on Bios on Asus EeeBook X205TA

Hope someone can give me fix to my problem. I purchased a Asus Eeebook X205TA to access my desktop when away. I installed Ubuntu 14.04 as single OS and completed the install without any errors ...
2
votes
0answers
61 views

Can't go past the grub screen

I am going to preface this with the fact that I am extremely new to Ubuntu, so I don't know much. When I start up my computer it takes me to GNU GRUB version 2.02~beta2-9ubuntu1 Not knowing ...
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votes
0answers
276 views

Live USB doesn't start - GNU GRUB version 2.02

When starting my laptop, the first and only screen I see is "GNU GRUB Version 2.02~ beta 2-9 Minimal BASH-like line ...". I can't access to BIOS, nor use a bootable usb flash drive. It doesn't read ...
2
votes
0answers
19 views

Powered down my laptop during a drive partition, any way to save some data?

I was in the process of partitioning my laptop drive which was running the latest version of Ubuntu when I was forced to turn it off, knowing the damage it could cause. When I turned it on later it ...
2
votes
0answers
101 views

How to boot encrypted windows partition

I have installed ubuntu 14.04 on a dedicated partition in my work machine. The Windows partition is encrypted with Symantec full disk encryption, and is not recognized by Ubuntu as Windows (and does ...
2
votes
0answers
344 views

How to boot Windows 8 installed in legacy mode using GRUB in EFI mode?

This question is linked to this: How to boot Windows 8 from a legacy MBR partition in UEFI mode via GRUB? But I can't access windows anymore, so I can't run bcdboot. Here's my partition tables: ...