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".

learn more… | top users | synonyms (2)

0
votes
1answer
284 views

“Try Ubuntu” on Grub menu is not displayed

I've downloaded Ubuntu 11.10 ISO image. Following the steps described on Unbutu.com site I've created a USB stick with the above image (using Startup Disk Creator from a Ubuntu 11.04 PC) Rebooting the ...
2
votes
1answer
129 views

What is the Policy for Updating grub-pc in LTS?

After having attempted an SRU request for a small patch to grub-pc for 10.04 LTS that fixes an issue that has left many people with unbootable servers nothing has been done for some time. The patch ...
3
votes
2answers
2k views

How do you get the very first boot messages smaller?

How do I get the very first boot messages, before the decryption of the system and before uvesafb is loaded, smaller? I tried: GRUB_GFXMODE=1024x768 GRUB_GFXPAYLOAD_LINUX=1024x768 and GRUB_GFXMODE=...
4
votes
4answers
5k views

Cannot run native Ubuntu in virtualbox with a vmdk created using the createrawvmdk command with partitions specified

I have a Win7 x64 & Ubuntu 11.10 x64 dual boot set-up on a single HDD. I wanted to run the native Ubuntu as a guest OS inside Virtual-box running on Win7 host. I used the following command to list ...
1
vote
2answers
13k views

Unable to boot: Missing Operating system

i had installed Ubuntu 11.10 along with the another Ubuntu 11.10 which already installed in my netbook. Later I formatted the partition I newly installed. Next time when I boot it went to Grub Rescue ...
4
votes
1answer
3k views

Cannot dual-boot Windows 7 and Ubuntu?

I had Ubuntu 11.10 on my laptop, then I determined to install Windows 7 and keep both of them on my machine (dual boot), then I installed Window 7. And then Windows 7 was running, but Ubuntu didn't ...
2
votes
1answer
687 views

No partitions after grub recovery

I stupidly inserted the Windows CD into my dual boot Ubuntu 11.10 / Windows XP system. I just wanted to see if I could install windows on my external usb HD, but didn't actually go ahead with the ...
2
votes
1answer
5k views

GRUB - ELF magic error message after installation - how to get dual boot option?

I attempted to install Ubuntu alongside Windows 7. (Intel i5 2300 H67 chipset) Unfortunately, after a seemingly successful installation I got the message: GRUB: “invalid arch independent ELF magic” ...
2
votes
1answer
12k views

How to remove and reset everything about burg, grub and plymouth

I'm a newbie to Ubuntu, and I'm using 11.10. I used super boot manager and boot manager, and I messed a lot with burg, grub and plymouth till that whatever I do there will be no change to burg theme ...
3
votes
1answer
966 views

Grub won't load Windows 7 (unknown file system)

I recently installed 11.10 on a new partition on my Windows 7 PC, and it works perfectly. But when I want to boot Windows 7 from the grub boot menu, it just says unknown file system, grub rescue. ...
2
votes
1answer
382 views

Velvet screen after grub selection

After a fresh install of Ubuntu 11.10 64-bit, the boot seems to stop after selecting the ubuntu option (same with the rescue one) in the grub menu. At first I thought this was related to grub-efi, as ...
10
votes
2answers
31k views

How to add Windows 7 loader to GRUB?

I've successfully installed Ubuntu 11.10 alongside Windows 7. During installation I've manually changed the Windows partition size ( there were 24Gb used, I've changed virtual partition size from ...
1
vote
4answers
8k views

Blank screen after choosing GRUB option — can boot from LiveCD no problem

Installed Ubuntu Oneiric Ocelot 11.1 a few weeks ago without issue on my AMD dual-core desktop machine (home-built) with AMD/ATI Radeon XFX "HD 4350" graphics card. Recently I was trying to update ...
1
vote
1answer
304 views

oSUSE and ubuntu: error15 on GRUB

Installed Ubuntu 11.10 from opensuse 11, by this method: https://help.ubuntu.com/community/Installation/NetbootInstallFromInternet now grub gives error 15 (i think it's Ubuntu's grub)
2
votes
1answer
118 views

Is there a way to escape to GRUB2 before system gets to the GUI log in screen?

After upgrading to 11.04 on a Dell Dimension E310 I cannot login. My keyboard and mouse have locked up. I would like to escape to GRUB2 to allow me to investigate the problem I have. I cannot even ...
7
votes
3answers
6k views

Play a sound before or after GRUB loads

I got a cool sound from linux defender or knoppix (or something else, I dont remember which one) that says "initiating start up sequence" And I want to use it as early as I can in the boot process. ...
1
vote
1answer
1k views

Resized windows partition in windows,and got to grub rescue commandline instead of grub when rebooting

I dual boot windows 7 and Ubuntu 11.10. I ran out of space in my linux partition, so I hopped over to the windows partition after unsuccessfully resizing the linux partition with gparted. I was using ...
1
vote
2answers
250 views

apt-get upgrade, stops grub booting usb

I am attempting to setup a htpc, with ubuntu booting from USB and 3 SATA disks as a raid array. I installed Ubuntu 11.10 minimal to the USB device, everything was working OK for the first few hours, ...
1
vote
1answer
717 views

how do I move grub to SATA drive from USB flash? And make new GRUB boot ubuntu server from USB?

I have a weird situation at hand. I've no ext monitor for my server. I was loading ubuntu server from USB flash drive, till I decided to add some real HDD. After adding hdd (SATA) server doesn't ...
1
vote
0answers
482 views

I want my grub2 background to be black but setting it to black is not enough [duplicate]

Possible Duplicate: How to change the purple background color in grub? The default background color for GRUB2 in ubuntu11.10 is a dark-magenta-purple. How to change this color to black so that ...
3
votes
3answers
9k views

Executing 'grub-install /dev/sda5' failed. This is a fatal error

I apologize in advance for my bad english. I was trying to dual boot Windows 7 and Kubuntu 11.10, and i get this error 'Executing 'grub-install /dev/sda5' failed. This is a fatal error.'. every time ...
7
votes
2answers
6k views

How do I get my USB keyboard to not freeze up in the recovery menu? [closed]

I am using Ubuntu 11.10, and whenever I enter the recovery menu, my keyboard freezes and I can't make any selections. I have tried using GRUB_PRELOAD_MODULES="usb usb_keyboard" but this doesn't help ...
2
votes
0answers
1k views

Add btrfs root parition entry to Grub2 [closed]

I have a separate 10GB partition to test pre-release builds. This time I decided to test the btrfs as root. After finishing installation, ubiquity showed an error message stating that grub could not ...
5
votes
3answers
50k views

How do I manually install GRUB? [duplicate]

I was installing Ubuntu 11.10 and the bootloader install failed. I tried installing it again but it didn't work so I want to know how to install grub manually. Thanks.
0
votes
1answer
470 views

Windows 7 can't be loaded after installing Ubuntu 11.10

I use a MacBook Pro 8,2. First of all I installed Mac OS X, then Windows 7 on sde4, then Ubuntu on sde5 and swap on sde5. After installing Ubuntu Windows 7 isn't loaded when I choose it in GRUB. ...
1
vote
2answers
757 views

Can't boot into Ubuntu, keeps returning to GRUB

I installed Ubuntu yesterday but it does not work when I try to access it. Instead it sends me to GRUB 1.99 . What can I do to make it work normally? What are the commands that I have to give for it ...
6
votes
1answer
21k views

How do I login in single user mode?

I needed to login through a single user mode in ubuntu 11.10 but don't know the changes I've to make in the grub command.
1
vote
2answers
2k views

How to fix my MBR? While installing random Ubuntu my MBR is not getting overwritten anymore

I boot with liveUSB. But how do i fix now my MBR, so that i can re-install Ubuntu? (after installing ubuntu i get mostly this blinking cursor and black screen) root@ubuntu:~# fdisk -l Disk /dev/sda: ...
0
votes
2answers
291 views

GRUB doesn't give the option to boot into Ubuntu

I managed to download Ubuntu 11.10, burn an iso file on a cd and install it on a dell precision 380 along with windows xp. the problem is that ubuntu option does not appear when the computer is ...
0
votes
1answer
926 views

First installation and failed to install grub-pc, how to solve this?

How to solve grub setup while first installation? (wrong, i choose before to make a new installation, but it was failed and now saying do it manually!! strange behaviour) (after installation, ...
2
votes
1answer
2k views

Need help to install Ubuntu on Win7 Alienware M17xR3, installing not working

Please I need help to install linux on my computer to start analyzing Next Generation Sequencing (molecular genetics) for my work. I've tried to install from all different ways and forms and it gave ...
0
votes
2answers
1k views

Dual boot 10.10 and 11.10 - no grub

I installed Ubuntu 11.10 alongside existing 10.10. I expected to get a menu on startup to choose which version to start with. It booted straight into 10.10 and I didn't get the option of 11.10 at all....
4
votes
1answer
653 views

No operating system detected at boot, how can I retrieve my data?

I upgrade from ubuntu 11.04 to 11.10 during its beta stage, and everything was working great despite a couple error messages. But suddenly LightDM started acting up, when I would type my password to ...
9
votes
2answers
30k views

How do I resolve a GRUB: “invalid arch independent ELF magic” error?

I am stuck with a rather irritating problem I ran into after installing 11.10 on my macbook pro 5,5. I did a clean install efi booting into the setup using the desktop cd. Upon the first reboot I was ...
2
votes
2answers
2k views

GRUB menu empty

When I access GRUB at boot I don't see any entry listed. I can see I'm in GRUB because some Debian Grub menu splashdown in the background is displayed. But no entry is listed and nothing happens if I ...
9
votes
1answer
15k views

Grub Menu doesn't appear when pressing SHIFT

I'd like to access my Grub Menu at boot by pressing Shift. After I press Shift I see a message saying "Grub loading.." but then no menu appears and the computer keeps booting normally into my Ubuntu ...
0
votes
1answer
5k views

Disable Computer from booting into gnome

I have a laptop running Ubuntu Server. I installed Ubuntu Desktop onto it by running sudo apt-get install ubuntu-desktop. Now, by default, the computer boots into gnome. What can I do to make it boot ...
3
votes
2answers
3k views

32 and 64 bit on one live USB stick

I have successfully created a bootable Live USB stick on an 8Gb drive with either the 32 and 64 bit version of 11.10 but not bother at the same time. I would like to put them both on the same stick ...
1
vote
1answer
3k views

grub “unknown filesystem” error on boot

When booting via grub I get the following error: error: unknown filesystem. grub rescue> ls (hd0) (hd0,msdos7) (hd0,msdos6) (hd0,msdos5) (hd0,msdos1) (fd0) grub resuce> set prefix=(hd0,msdos5)/...
0
votes
1answer
230 views

Can Grub error messages be hidden, as Ubuntu continues to load regardless?

can Grub 'error' messages that appear over the blue splash-screen be made to be hidden, as Grub continues through to load Ubuntu without any problems, and there are no effects within the desktop ...
4
votes
1answer
591 views

Can no longer boot into Windows 7

I have a laptop on which I had Windows 7 installed on. Later I installed Ubuntu 11.10 on a new partition (sda7). Somehow it magically moved to sda6 and the grub loader freaked out. Then I booted ...
6
votes
1answer
12k views

Hide Grub menu and keystroke to reveal

How do you have the grub appear on a key combination, but have windows boot default. I'm running ubuntu 11.10 and grub 2.0. Here is my current /etc/default/grub # If you change this file, run '...
1
vote
2answers
478 views

How to boot into Ubuntu from Grub prompt?

I know there is a lot of documentation about Grub and grub2 here and around the internet, but nothing seems to solve my problem. I upgrade from ubuntu 11.04 to 11.10 during its beta stage, and ...
-1
votes
1answer
4k views

“Unknown filesystem” error and grub rescue prompt on boot [duplicate]

Possible Duplicate: Grub rescue - error: unknown filesystem I installed Ubuntu 11.10 alongside Windows 7. When I restarted my pc it showed unknown file system and grub> . I googled it and ...
13
votes
0answers
21k views

How do I boot into console mode? [duplicate]

In previous versions of Ubuntu I could get the computer to boot into console mode by setting the variable GRUB_CMDLINE_LINUX_DEFAULT to "text" in the file /etc/default/grub and run sudo update-grub. ...
2
votes
1answer
240 views

boot menu kernel header update [closed]

i recently updated my ubuntu from 11.04 to 11.10 today, in this i know that it is with kernel 3.0 now after installation when i rebooted my system.i had the same old kernel 2.6.38.8... so i dig in to ...
2
votes
2answers
247 views

Expected a dual boot system with Windows Vista, but it only boots Ubuntu

I told my friend that I would create a dual boot system with his Windows Vista and not screw it up. It only boots to Ubuntu with no boot menu. At least it kept the compressed Windows partition. How do ...
16
votes
2answers
38k views

Editing the default boot item in grub menu, a definitive answer?

Each time I've tried to dual boot Ubuntu with Windows I always have difficulty with the same thing... editing the default option on the grub boot loader. I'm now running 11.10 and have run into the ...
1
vote
2answers
1k views

Dual boot Windows8 and Ubuntu10.10 using 2 separate hard drives?

Is it not possible to point Grub2 at a Windows8 install at this time? I have Win8 on the first hard drive and ubuntu10.10b64 on the second. I use the bios to switch OS at boot time. I have tried a ...
3
votes
1answer
2k views

Why there is no password to root under Recovery Mode?

I am trying to understand this situation... Today I got a problem with de sudoers file since I modified and got problem whit this modification. So the only way to solve the problem was to modify the ...