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 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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233 views

TabletPC: OS selection in GRUB using volume and Windows buttons

I've bought an Acer P3-171 tablet and installed Ubuntu Precise Pangolin alongside with Windows on it. Unfortunately, I only can choose the OS to boot using an external hardware keyboard. I am a ...
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181 views

Broken chainloader after cloning drive

I have a multiboot system with Windows XP and Ubuntu 13.04. I use Grub 2 to boot from the MBR to a chainloader in the Ubuntu partition, and the chainloader gives me the option of booting to XP or ...
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68 views

Dual Partion windows not working ?

I originally set up Ubuntu "along side" widows(Vista) and realized it was done though wubi after I tried to set up a VB and didn't have enough room. I then repartitioned the HD and did a stand alone ...
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272 views

Kernel panic after updating to linux kernel 3.8.0-32

I'm getting the following errors after upgrading to the newest kernel: VFS: Cannot open root device "UUID=1f09d896-51ad-47b8-8e62-c289906e527a" in unknown-block(0,0) Please append a correct "root=" ...
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821 views

Attempt to read or write outside of disk hd0 problem

I installed ubuntu 13.04 on a 16GB usb memory (full installation, not live usb) and boot it with vmware player 6 + plop under windows 7 64-bit host. To avoid windows format complain, I created a ...
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225 views

Dual Boot System: Windows 8 starts up with black screen if started from GRUB

i don't even know if this problem has anything to do with GRUB or Ubuntu. It could be just a hardware problem. my problem started after i installed my new graphics card (Radeon HD7970). Everything ...
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215 views

Issue with booting/rebooting behavior when using a bootable SD Card

So, here's what I have: A bootable SD Card, with a minimal Ubuntu installation. A bootable USB stick, with exactly the same filesystem image. A Shuttle PC (much like the XS35V2 Digital Signage Media ...
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352 views

How to fix Grub loader that hangs and waits for user with read only root partition?

I am trying to create a set of Ubuntu 12.04 slave systems that have a read only root partition and a small read/write partition mounted for a single user. These systems will be used for a short job ...
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227 views

Nvidia Optimus / Purple screen at boot

I have a ThinkPad T430 with an Nvidia NVS 5400M dual booting Raring and Windows 8. If I boot directly into Ubuntu or reboot Ubuntu then the system boots with a purple screen directly after grub. It's ...
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786 views

How to boot Ubuntu 12.04.2 LTS with UEFI, Nvidia graphics and dm_crypt encrypted LVM

I've just gotten 3 new systems, with Nvidia GTX 660 graphics, Z77 chipset and AMI UEFI BIOS. I've installed Ubuntu 12.04.2 LTS from the Alternate Installer in order to install onto an encrypted LVM ...
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2k views

Ubuntu 13.04 - Black screen with unresponsive cursor

Few days ago I installed ubuntu 13.04 on a new machine without big issues. Today, after the boot, I have this situation: grub correctly loaded and normal boot normal purple screen with red dots ...
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87 views

grub customizer broken after changing grub backround image option

As you can see from the paste I have a dual boot laptop with win7 and Ubuntu 12.10. The grub broken after messing around with background picture with grub customizer.I didn't proceed to any change ...
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408 views

ATI HD 6320 ASUS Brightness doesn't change

When i press Function + [F5 or F6] to increase or decrease the brightness, the adjustment display on top right pops out and the slider moves but the screen brightness remains the same. i've done ...
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179 views

Setting up a bootable usb iso

So, I've got an ext3 partition on a removable USB device. Its /dev/sdb1 on my system. After mounting this partition: sudo mount /dev/sdb1 /mnt/USB I install grub on it: sudo grub-install ...
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1k views

Can't access grub menu by holding shift

I need to be able to set the nomodeset flag for the system to boot correctly, however pressing and holding shift after the boot screen does not give me access to the Grub menu. I need to point out ...
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126 views

Attempt to install Ubuntu 12.10 from Windows but get GRUB instead

I have a Ubuntu ISO that I have just downloaded from ubuntu.com and used the Windows Installer (Wubi) to install Ubuntu, but when it boots, instead of Ubuntu I get some GRUB ... something. I have ...
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1k views

Installing 12.04LTS Server on a Fake RAID10

Scenario Install Ubuntu 12.04LTS Server on a RAID10 with boot on a RAID1. 4 - 2Tb SATA Hard Drives 3 Partitions (/boot, /, and swap) boot (256Mb from each disk) setup in RAID1 /dev/md0 partition ...
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309 views

Grub Customizer does not start

I recently installed Ubuntu 12.10 as a second OS dual-booting with Windows. And by default I need to boot to Windows. So, I decided to install Grub Customizer through the terminal: sudo ...
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63 views

Change Bootloader title to include bit

Secondlife runs on 32 bit linux. I've tried WINE, Crossover, and installing the 32 bit libraries. Nothing has worked so now I'm having to install a 32 bit copy of Ubuntu as a second partition just to ...
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403 views

Grub Customizer Error on startup

I cant start Grub Customizer in ubuntu 12.04 after updating the kernel: exception '15AssertException' with message 'found unexpected file on path: /etc/grub.d/10_linux' in ...
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333 views

when installing /boot inside a lvm group, where do I install the boot loader?

I am setting a personal file/cloud server based on ubuntu server 12.04 and owncloud but there are certain things about the partitioning that I can't get my head around... Let's say for example I want ...
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715 views

How can I fix this error file /boot/grub2/i386-pc/normal.mod not found

I recently replaced Windows 7 with Ubuntu 12.10. I chose the option to replace windows so I am not dual booting. I am currently running off a flash drive since after I tried the install the error ...
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135 views

Copying data from Centos hard drive to Ubuntu

I have a 2 PCs wiht ubuntu 10.04 and centos 5.8 installed.I want to copy all the data from Centos hard drive to one with ubuntu. How can I do this ??? I have tried directly plugging centos hard drive ...
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70 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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183 views

ubuntu 12.04 Booting error

i have ubuntu 12.04 downloaded along side my windows 7 sony viao laptop, ive used it for a couple of months, yesterday i decided to boot onto windows then it did something that messed up ubuntu. when ...
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3k views

“hd0 out of disk” / “hd0 write error” (still boots)

I was doing a series of upgrades of my desktop which had 10.04, aiming for 12.04. Somewhere in the middle, GRUB began displaying "error: hd0 out of disk / press any key to continue", but the boot ...
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769 views

How to fix GRUB on dualboot with Windows7 and Ubuntu?

I am a relatively recent user of Linux. I had several releases of Ubuntu installed on my laptop working in dual-boot and never had any issues. Recently, I installed openSUSE because I thought it ...
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369 views

Edit Windows Boot Loader from Ubuntu

I am using Ubuntu 12.10, and Windows 7. I accidentally removed the Windows option from the Windows Boot Loader using EasyBCD. I do not know how to access the windows boot loader configuration files. I ...
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648 views

grub menu resolution problem on ubuntu 12.10

When I cold boot Ubuntu 12.10, the Grub menu font is stretched and the background doesn't cover the entire screen, like it's 640x800 resolution. If I reboot the grub menu is perfect, no font or size ...
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198 views

Boot in virtual console mode with full resolution

I am able to either: 1) Boot into X, switch to virtual console #1 and use it at full resolution or 2) Boot into virtual console mode -only and use them with 80 columns max How can I boot into ...
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441 views

error: no device connected

I did a fresh install of 12.04 by usb and it went fine, worked on it for several days, but one day the browser crashed and i reset the machine, after that I get this error when i boot; error: no ...
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88 views

Two Ubuntus in my grub bootloader

I have a problem: I have Windows 7 installed on my notebook. I wanted to install ubuntu on it. So I did. Then I removed Ubuntu because of several lags. And when I rebooted, it still showed Ubuntu in ...
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487 views

Server 12.04 boots to Grub CLI

Yesterday, I rebooted the server and it booted up to grub. Screen says 'Minimal BASH-like .... etc'. I've tried booting to the Server rescue mode from the install disk and tried reinstalling grub. ...
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10 views

Restricting on-the-fly editing of grub2 menuentries

Is there a way to disable the e' to edit commands before booting option in the GRUB2 menu? I want all menuentries to be available to all users (so password restricting them is not an option) but ...
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13 views

GRUB rescue and out of memory - killing process occurs when I start my laptop

Using USB booting, I installed Ubuntu 14.04.2 LTS 64 bit on my LENEVO Ideapad G50 - 70 dual boot with windows 8.1 - In order to overcome Ubi partman error 10 ( I think its RAID isssue) by using -> Try ...
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0answers
8 views

Unplugged old bad disk, ran update-grub, but old menu options (on unplugged disk) still appear

so this must be a common problem. I had an old Windows machine with a disk that started to go bad (just some bad spots, corrupted files). So, I installed a new disk beside the old one and put Mint ...
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12 views

Grub Error: Unknown filesystem(Tried with Boot-Repair also, Unable to resolve it)

I have a dual boot in laptop which consisting of Ubuntu along with Windows7, But my laptop is showing the error Grub Error: Unknown filesystem when booting. I tried everything in the web and followed ...
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12 views

Ubuntu Live on Pendrive: How can I default booting to Ram Test?

I would like to create some Ubuntu Live pendrive for booting Ubuntu, but most often testing RAM: So, as long as the most usual behavior of this boot manager would be the RAM testing, I would like ...
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28 views

How do I move empty space on hard drive

I have a 500GB hard drive, internal, and it is split as follows: Partition Type Mount Point Size Used Flags 1. /dev/sda1 ntfs /media/BackupHD 433.55GiB 408.76 boot 2. ...
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25 views

What is ideal partitioning scheme for triple booting Arch, Ubuntu, Windows 8.1?

Shown below is my current partition configuration (which is supposed to triple boot) with, 350MB partition for bootloader and MBR of Windows, I guess 100GB partition for Windows 8.1 45.02GB partition ...
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22 views

Ubuntu Studio 14.04.2 LTS AMD64 boot issue

Fresh install, no dual boot, 2TB brand new HDD, 4GB RAM, brand new Toshiba Satellite NB15T, LUKS encrypted drive, encrypted home folder as well, MD5 checksum's verified, default installation (and ...
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0answers
27 views

Boot repair fails to repair my dual boot (ubuntu 14.04 and windows 8)

Usually when I start my laptop, grub starts and allows me to boot either ubuntu or windows. However, after a windows update yesterday, windows is started automatically and selecting ubuntu in the ...
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0answers
21 views

No Windows Option on Lubuntu Dual Boot on Surface Pro 3

I installed Lubuntu alongside a preexisting windows 8.1 install on my Surface Pro 3. Lubuntu was installed fine - but when I boot up - I dont see an option to boot into Windows. ...
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0answers
12 views

my pc displays GRUB and doesn't starts

I just tried to install ubuntu on my PC. I ran Wubi and rebooted computer. My pc has two partitions, one with windows installed and the other with an ubuntu-based linux OS called Linkat, created in my ...
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0answers
59 views

Broken boot ubuntu 15.04 - Adding repository from live-usb

When I installed ubntu 15 I pressed ctrl c and the installation was interrupted. I got the error about kernel-panic. I try to do a boot-reapir using a live-cd. I ran it with purge grub as was ...
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19 views

Clonezilla and Alignment

I have to move my 14.04 system from my old SSD onto a new one. Having decided to use Clonezilla, I went for direct disk-to-image: this would have had the bootloader (grub) cloned as well, allowing to ...
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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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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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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, ...