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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What are the entries in the Grub menu?

On booting my computer, I see multiple entries in my GRUB menu such as memtest, various Ubuntu versions and a corresponding recovery option. What does memtest mean and why are there a lot of Ubuntu ...
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1k views

Boot from USB w/ Grub2… computer is useless right now… help!!!

I'm running Ubuntu 12.04 on my MacBook Air, and after a botched update attempt the OS won't boot & recovery mode won't boot. The only thing I can do is drop into the Grub2 prompt. I have a USB ...
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3answers
26k views

Installed Ubuntu 12.04 and no Menu on boot!

I had installed Ubuntu 12.04 on a separate partition, in ext4 format in my comp, which initially had only Windows 7. I had done the installation from a Live USB, which gave me the option Install on ...
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2answers
723 views

Ubuntu in USB.. Boot from fixed HDD?

I am having Ubuntu 12.04 minimal installed on my USB pen-drive; which I use on several systems as portable OS. I was thinking to edit the boot parameters so that before the main Ubuntu OS is loaded, ...
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2answers
3k views

How do I recover from a “error: unknown file system grub” boot error? [duplicate]

Possible Duplicate: How to fix "error: unknown filesystem. grub rescue> I have dual boot system with Windows 7 and 10.04. Recently I have installed 12.04 over 10.04. Now when I start my ...
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0answers
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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2answers
776 views

Boot-repair failing on 12.04 dual boot

After reinstalling 12.04 on my machine alongside Windows 7 I got the grub rescue prompt. Following from other posts on here I installed and ran boot repair. However it seems to be running into some ...
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2answers
10k views

Changes in grub.cfg are ignored

I'm trying to change the default OS in grub, but when I do sudo gedit /boot/grub/grub.cfg and change it to option 3 instead of 0 and run update-grub, nothing changes. The default selected OS is ...
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1answer
13k views

GNU GRUB version 1.99-21ubuntu3, DOES NOT WORK! [duplicate]

Possible Duplicate: How can I repair grub? (How to get Ubuntu back after installing Windows?) I'm new to Ubuntu, I installed it but when I try to start it, tells me that I need to run ...
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1answer
6k views

How can I fix a very broken Ubuntu installation without losing data?

Okay guys, I was installing a program (I do not remember the name). When I did sudo apt-get update I was given missing dependencies. It told me to sudo apt-get install -f which deleted just about ...
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1answer
2k views

Grub2 won't show any graphical menu

I recently installed Ubuntu on my system, and since my previous grub2 installation was messy, I decided to reinstall grub2 in this ubuntu partition. Anyway it didn't totally work : grub-install ...
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1answer
564 views

Are there known (slow boot) issues with Dell XPS17 (L702x) and Grub?

I just received my Dell XPS17 and installed it as follows: Partition 1: 100GB NTFS Windows 7 Partition 2: 16GB Swap Partition 3: 100GB EXT4 Linux / Partition 4: 536GB LUKS + NTFS Data all four are ...
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1answer
1k views

Installing GRUB boot Loader freezes when Running “grub-install dummy”

When installing Ubuntu 12.04 server from a disc, my system freezes up after the installation comes to Installing GRUB boot loader, with a 50% completion bar and the command "Running "grub-install ...
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1answer
3k views

recovering linux boot loader after reinstalling windows [duplicate]

Possible Duplicate: How can I repair grub? (How to get Ubuntu back after installing Windows?) i have a notebook in which i installed windows, and then linux on another partition. Today, i ...
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1answer
856 views

Dual boot ubuntu 12.04 and Mageia

I am new to Linux, and I am currently using Ubuntu 12.04. I would like to set up a dual-boot of Mageia 2 and Ubuntu. Should I install Mageia first so when I install Ubuntu I can use GRUB2? Will it ...
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3answers
55k 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
36 views

change boot loader order [duplicate]

Possible Duplicate: How do I change the grub boot order? I use windows as primary system. Last week, I installed newest Ubuntu, and I always accidentally boot in to Ubuntu when I want to ...
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0answers
1k views

Speed up boot time [duplicate]

Possible Duplicate: How do I improve boot speed? In ubuntu "example" folder, it shows me that Ubuntu is ready to work in just 7 second. how can I make my ubuntu boot as fast as that video? ...
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2answers
7k views

Cannot boot after BIOS / UEFI reset to defaults

I have a ThinkPad X130e. I installed Ubuntu 12.04 LTS amd64 on it. All worked fine until yesterday. While diagnosing another issue I reset the BIOS / UEFI to defaults. Afterwards Ubuntu did not boot ...
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2answers
1k views

Missing Windows 7 when i installed ubuntu 12.4

i am newbie to this i installed Ubuntu using separate drive and i choose windows 7 loader as a boot device loader and after the installation i can only choose Ubuntu no windows 7 os so please help me ...
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1answer
4k views

How to enable hiding grub menu on a dual-boot system?

With GRUB 2, you seem to be able to hide the startup menu (unless someone presses a certain button). But unfortunately grub disables this for multi-OS systems, I've looked up a few other pages. But ...
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3answers
32k views

Booting Ubuntu 12.04 with “acpi=off” grub parameter

In order for me to boot into 12.04, I have to add the parameter acpi=off in grub. Any other options as specified here do not allow me to boot into Ubuntu. My question is simple, what does setting ...
2
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1answer
259 views

New video card breaks GRUB auto boot to GUI

I recently swapped out an old ATI video card for a newer Nvidia card. The card seems to be working just fine and I can get a GUI with some effort. However, the new video card seems to have broke ...
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2k views

12.04 Server does not honor GRUB_GFXMODE in /etc/default/grub?

I'm having an issue with Ubuntu server not showing the correct graphics on the terminal, similar to the issue here. The text is all garbled after grub. Unfortunately, the solution to that question ...
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How do I get a live-USB to use a partition for persistence?

I want to install Ubuntu to a USB hard drive so that it will run on all systems, that can run the LiveCD and store persistent data on a regular ext4 partition rather than a casper-rw file. In every ...
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1answer
952 views

HP compaq nx5000 laptop freezes with 12.04, which kernel parameter could fix it?

I recovered an old laptop (HP compaq nx5000). It worked with Ubuntu Server 8.04 very good a lot years ago. I'm trying install Ubuntu Desktop 12.04 & 10.04, but the laptop freezes on the first 15 ...
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1answer
6k views

Grub loader not appearing on boot when dual booting with Windows 7

I've just dual booted Windows 7 and Ubuntu, but whenever I boot my computer the grub loader asking me which OS I want to boot into doesn't appear and I get launched straight into Windows. I installed ...
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1answer
718 views

Ubuntu 12.04 not showing in boot selection after installing from Wubi in Windows 7

I know there are already several instances of this problem but I just don't find a similar issue as mine so pardon for being redundant.I am new to Ubuntu but I very much like to understand the whole ...
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0answers
47 views

How to change the default selection in GRUB2? [duplicate]

Possible Duplicate: How do I set Windows to boot as the default in the boot loader? I have installed first Windows 7, then I installed Ubuntu 11.10. Now the boot loader is GRUB and is ...
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1answer
3k views

laptop doesn't boot, stops at GRUB screen [duplicate]

Possible Duplicate: I can't boot into a usable system anymore. What should I do? I installed Ubuntu on a laptop's hard drive along with Microsoft Vista. It was working perfectly, but a ...
0
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1answer
1k views

Partition not showing in dpkg-reconfigure grub-pc (grub2) menu

I am trying to install grub boot loader on a partition /dev/sda3 (ext3 formatted), but it is not showing as an option when I run dpkg-reconfigure grub-pc. My details are: I have a dual boot system ...
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1answer
546 views

Booting from cd, how update grub2 to reflect changed uuid?

I changed disks around now I get a message from grub (grub2) saying disk w/ uuid=XXXX does not exist. I've booted from a usb flash drive now, but can't figure out how to run the grub update so that ...
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3answers
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Ubuntu 12.04 upgrade: Grub update-grub fails after update

Thanks in advance for any help. I'm running Ubuntu and Windows 7 on separate partitions with a large storage drive to share files between them. fdisk -l shows: Device Boot Start End ...
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2answers
4k views

Grub not loading?

So I got fed up with Windows Vista and decided to install Ubuntu. My roommate has the 11.10 version and so that is what I installed. I've used Ubuntu 10.04 and 10.10 on a different computer before so ...
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5answers
1k views

How do I format my ubuntu partition(ext4) and keep my windows partition?

I want my old family pc to use only windows xp now that I don't use it anymore. However, I have a 200GB ext4 partition, containing ubuntu. Windows does not detect ext4. I also don't want it booting ...
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3answers
4k views

Ubuntu 12.04 grub install fails, installing to wrong device

This is getting quite annoying and Google isn't proving to be much of assistance. I've built a new server and it has a total of five devices. /dev/sda - 2TB HDD /dev/sdb - 2TB HDD /dev/sdc - 2TB ...
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1answer
1k views

12.04 upgrade broke grub? (not wubi related)

I just updated from 11.10 to 12.04, with no major problems (it took a while to get past a request to restart ssh, mysql and some other services, but I did no fiddling by myself, everything was done by ...
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1answer
590 views

Does my laptop have BIOS or EFI?

I have a Sony VAIO S Series Laptop ( Model: VPCSE190X ) ...
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1answer
4k views

Windows 7, Windows 8 entries missing after reinstalling grub

I originally had Windows 7 and Ubuntu 12.04 installed. After I installed Windows preview on a logical partition, the Windows boot loader showed only Windows 7 and Windows 8, there was no option to ...
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2answers
3k 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 ...
2
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6answers
16k views

Can not boot into Windows 7 after installing Ubuntu 12.04

I installed Ubuntu 12.04 alongside Windows 7 on a separate partition, with mount point '/' and boot load information on Windows 7 drive (settings, prior to installing Ubuntu). When I start the system, ...
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1answer
1k views

Computer doesn't boot after installing Ubuntu 12.04 on top of Windows 7

I installed Ubuntu 12.04 in my computer without problems, but after rebooting i got the following error Error: No such partition grub rescue> I know this is a common problem and i tryed all the ...
0
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1answer
344 views

Ubuntu boots but gives no screen

I got Ubuntu 11.10, with gnome-shell as desktop manager, and whenever I boot(select ubuntu from grub, just so you know where we are) it gives no screen, and if I wait a minute orso, and press the ...
0
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1answer
204 views

Does a upgrade from 11.10 to 12.04 updates a (manual) GRUB installation to GRUB2?

I have a Lenovo Ideapad S205, which has difficulties with GRUB2. Therefore I did a manual installation of GRUB 0.97. Will a upgrade from 11.10 to 12.04 destroy my old GRUB or will it respect the ...
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3answers
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Is it possible to completely disable Grub timeout?

I am setting up a dual boot install for my wife's computer. I would like to disable the timeout for selecting OS that defaults to Ubuntu so the computer wont boot without making a selection. (IE. ...
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votes
2answers
1k views

How should one set the grub-pc package's “install_devices” debconf setting?

Many times the value of the "install_devices" debconf setting in the grub-pc package is wrong for various reasons. Sometimes it's because Ubuntu's installer selected a different install device than ...
2
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1answer
273 views

How do I restore the original GRUB2 after an update on the other Ubuntu install overwrites it?

I have a dual boot (actually triple with windows but that's irrelevant) with Ubuntu 12.04 [1] and another Ubuntu [2]. I recently upgraded [2] which may have overwritten [1]'s grub with [2]'s grub, ie ...
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2answers
4k views

Do I have to worry about “error: superfluous RAID member”?

When running update-grub on the newly installed Ubuntu 12.04 with an older software RAID (md), I get: error: superfluous RAID member (5 found). error: superfluous RAID member (5 found). Generating ...
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2answers
2k views

How would I boot into the Ubuntu and Windows recovery modes if I removed the options to do so from the Grub menu?

I can use Grub-Customizer to edit which options appear in the Grub menu. I was thinking of removing everything except the option to boot into Ubuntu and into Windows. If I was to do this how could I ...
9
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5answers
85k views

How to boot into Windows 7 when grub is installed in the Windows partition?

Original title: How can i solve (un)booting windows 7 on the same partition with grub? I've been researching for 2/3 days about this problem and I have came up empty. Basically, partition 1 is ...