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 do I skip the Grub menu on a dual-boot system? [duplicate]

I have Ubuntu and Windows 7 installed and dual booting via Grub2. 99/100 times I will boot into Ubuntu. I want to speed up my time for booting into Ubuntu and really the Grub2 prompt is the part ...
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2answers
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Grub gives messages about the boot sector being used by other software. What should I do?

This only happens with one of my computers. It is an elderly laptop that has had a long and varied history with several operating systems, but in its retirement it is acting as a server for my home ...
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3answers
18k views

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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5answers
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No box characters after changing the default Grub font

I've been able to change the default font of Grub, by using grub-mkfont -s 16 -o /boot/grub/grubfont.pf2 font.tty and then adding the following line to /etc/default/grub: GRUB_FONT=/boot/grub/...
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2answers
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How do you run update-grub?

I went into Live CD and activated Terminal. Then, I typed gksu nautilus to gain temporary access to my root directory. Once the Manager window opened, I clicked on File System and navigated to the /...
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4answers
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Installing Ubuntu 12.04 without installing Grub

Using the Ubuntu 12.04 Live CD, is possible not to install Grub? In previous versions, there was a checkbox called something like "skip grub installation", now in 12.04 this checkbox isn't there any ...
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6answers
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Upgrading from 13.10 to 14.04 broke Grub

I have a dual boot Ubuntu + Windows 8 on an UEFI system. Everything was ok until I upgraded to Ubuntu 14.04 from 13.10. Now what I get when I boot the pc is a grub rescue screen like this with the ...
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2answers
29k views

GRUB: “invalid arch independent ELF magic” after install on SSD [duplicate]

I've got a brand new laptop with a 128GB SSD drive. I read that aligning the partitions to match the Erase Block Size of the SSD is important. I followed William Scott's guide SSD Tweaks in Linux and ...
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2answers
42k views

How do I enable verbose mode at boot?

How to make natty boot in verbose mode. Changing option GRUB_CMDLINE_LINUX_DEFAULT="splash quiet to GRUB_CMDLINE_LINUX_DEFAULT="" in /etc/default/grub doesn't effect in natty.
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1answer
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What does GRUB setting GRUB_GFXPAYLOAD_LINUX=text?

To be able to boot Ubuntu 10.10 or 11.10 in my new Lenovo L5210 with Intel Sandy Bridge I need to set grub setting GRUB_GFXPAYLOAD_LINUX=text (or I will get a blank black screen with only a cursor in ...
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2answers
380 views

LTSP thin client to single user mode

Is it possible to boot a LTSP thin client to single user mode? I've updated the default entry under /var/lib/tftpboot/ltsp/i386/pxelinux.cfg to read as follows: - append ro initrd=initrd.img root=/...
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4answers
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What to do when I get an “attempt to read or write outside of disk 'hd0'” error and Boot Repair does not solve the problem?

I tried to install Xbuntu 13.10 on an older computer. I noticed some difficulties during installation that may be relevant to my problems. Notably: The screen resolution was extremely low. The ...
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5answers
55k views

How to restore Windows 7 MBR without a CD

I have been playing with Ubuntu for a few weeks now, and I'd like to revert my computer back to it's original - factory - defaults. On the computer I have a recovery partition (it's a netbook). I ...
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2answers
1k views

Whats is the importance of Plymouth?

I accidentaly did a command to delete Plymouth from my ubuntu 15.04: sudo apt-get remove plymouth and after this my login screen didn't appear any more. After GRUB menu the screen became black and ...
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2answers
204k views

How do I edit GRUB menu [duplicate]

I have a dual boot on my computer of Windows 7 and Xubuntu 12.10. The Linux boot is 1st and the Windows 2nd. I would like to reverse the boot order in the GRUB menu. I need to know the steps to go ...
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5answers
25k views

Sony VAIO with Insyde H2O EFI bios will not boot into GRUB EFI

I bought a new Sony Vaio S series laptop. It uses Insyde H2O BIOS EFI, and trying to install Linux on it is driving me crazy. root@kubuntu:~# parted /dev/sda print Model: ATA Hitachi HTS72756 (scsi) ...
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3answers
12k views

How to select GRUB install device

I apologize in advance for asking a question I suspect is very, very simple. I just got a dedicated server running Ubuntu and I'm using SSH to access it. I ran sudo apt-get dist-upgrade and got the ...
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2answers
45k views

How to add a GRUB2 menu entry for booting installed Ubuntu on a USB drive?

I am not asking how to boot the LiveCD from a USB. I have 2 Ubuntu installations, one on my computer's internal hard drive and another on a USB drive. Is there a way to add a GRUB2 menu entry (to ...
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2answers
27k views

ALERT! /dev/disk/by-uuid/xxxxxxxxx does not exist. Dropping to a shell

I am using Ubuntu 14.04. On 23 August 2014 I ran in terminal sudo apt-get update. Then I rebooted the system. And now I see: ALERT! /dev/disk/by-uuid/xxxxxxxxx does not exist. Dropping to a shell ...
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6answers
13k views

Cannot get grub menu to timeout (or go away)

I am running Ubuntu 12.04. I cannot for the life of me get the grub menu (with options) to go away. I would like it to auto-boot into the first option. I've edited /etc/default/grub so that it looks ...
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5answers
127k 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 ...
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3answers
876 views

What are the benefits of using Grub2 over Grub?

Why would one move from Grub to Grub2?
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2answers
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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 ...
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4answers
25k views

Grub does not autoboot the default option after upgrade to 12.10

I recently upgraded Ubuntu from 12.04 to 12.10 and since that time, the system does not automatically boot. It always opens the boot menu, and I have to press Enter to make it boot Ubuntu. It seems ...
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3answers
454 views

Could it be possible to make a hot copy of a system?

I'd like to backup my system without turning it off. The system clone should also able to run in an other machine. I've tried to "dd" the entire system partition on another disk, after that I'm ...
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2answers
24k views

How can I increase the console resolution of my Ubuntu server

I am running an Ubuntu server inside VMware workstation, when I run the VM the screen is really small. I want to increase it to something that fits in the whole VMware console. I tried changing the ...
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5answers
6k views

How to migrate an encrypted LVM install to a new disk

I have a somewhat customised laptop install I want to move to a SSD directly, without having to reinstall Ubuntu, reinstall all the apps and make all the other changes again. The SSD is smaller, so I ...
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1answer
31k views

How to know the partition where grub is installed

I am Dual Booting Maverick with Natty. I want to know which partition has Grub installed. I want to make sure that grub is installed in the maverick partition not in natty, so that when I remove the ...
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3answers
4k views

Ubuntu shows 'Kubuntu' on boot

I recently updated my Ubuntu 12.10 setup to 13.04 using sudo do-release-upgrade. After going through the process and rebooting, I was a little confused by the GRUB menu showing a "Kubuntu" option ...
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3answers
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High resolution CLI?

I want the resolution of my console to match my screen resolution(1440x900). 1024x768 works fine but for some reason when I put 1440x900 when I switch to ttyX the command prompt is almost right off ...
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3answers
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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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3answers
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Is there a way to save the output of vbeinfo?

I'm trying to correct some GRUB2 and Plymouth display problems in 11.10 as part of an ongoing saga. I'm going to run the vbeinfo command to check supported display modes, but unfortunately from what I ...
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3answers
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How to secure grub recovery mode

When I boot system in to recovery mode from GRUB menu, I can get in to all powerful root without entering any password, thus insecure. How I can secure this and ensure that a password is asked every ...
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3answers
1k views

Can GRUB be scheduled? This means: changing default 'entry' (auto login) at defined periods of time automatically?

For example: 00:00:00 to 06:00:00 -> Slitaz 06:00:01 to 13:00:00 -> Ubuntu 13:00:01 to 19:00:00 -> Fedora 19:00:01 to 23:59:59 -> openSUSE Can grub change default 'entry' automatically?
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2answers
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How do I run `vbeinfo`?

The instructions in /etc/default/grub say to run vbeinfo, # The resolution used on graphical terminal # note that you can use only modes which your graphic card supports via VBE # you can see them ...
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3answers
44k views

Booting Ubuntu 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 ...
10
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0answers
5k views

How can I choose which OS grub will reboot me into—before I reboot? [duplicate]

LILO had a simple feature that allowed one to select the boot menu entry that should be used on the next reboot while in Linux, thus one could select the OS to be booted into on shutdown and didn't ...
9
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4answers
8k views

How do I reduce the number of wait seconds grub waits before launching ubuntu 10.10? [duplicate]

Possible Duplicate: Decrease GRUB timeout I have a dual boot configuration with ubuntu 10.10 and windows. What's the best way to configure grub so that the wait time is 2 seconds instead of 10 ...
9
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3answers
38k views

GRUB does not detect Windows

I have finally installed Ubuntu on my second drive. When I start my computer GRUB only offers me to boot Ubuntu, not Windows 7. What needs to be done so that I can choose between Ubuntu and Windows in ...
9
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5answers
37k views

Configure Dual Boot, Windows 7 and Ubuntu 12.04 with or without EFI

I have just installed Ubuntu 12.04 on a laptop with Windows 7 but I don't get to boot from Ubuntu. First, during the installation I made these partitions (may be too many): /dev/sda1 FAT32 SYSTEM ...
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4answers
3k views

How to avoid problems when installing Ubuntu and Windows 7 in dual-boot?

I want to try out Ubuntu (and hopefully choose it as my primary OS). After looking at many versions of it in VirtualBox and from Live CD, I've finally decided to install it. So I defragmented and ...
9
votes
1answer
32k views

How can I load Ubuntu when all I have is Grub?

So I have upgraded Ubuntu with the latest Kernel. But after the upgrade and after I rebooted Ubuntu, all I get is GRUB. How do I load Ubuntu again when all I have is GRUB? I installed Ubuntu using ...
9
votes
1answer
14k views

How to reinstall newest Linux Kernel?

Hello I upgraded all packages on my Ubuntu, and kernel also. But in upgrading process kernel upgrade failed, and I must always after grub load select older kernel. It is a terminal command to ...
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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 ...
9
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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 ...
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3answers
24k views

“invalid EFI file path” while booting Windows [closed]

I just got my new working notebook with Windows 8 pre-installed. After installing Ubuntu 12.10 the grub menu says that there is an "invalid EFI file path" and it won't boot Windows. Ubuntu works fine.....
9
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2answers
5k 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 ...
9
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2answers
48k views

How do I manually boot from the grub prompt after do-release-upgrade?

I read a couple of other questions on this topic and they both pointed to the Grub2 community documentation and installing grub configs from an install disk. I had some trouble with the documentation,...
9
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1answer
333 views

Is it OK to delete the /boot/initrd.img file on a running system

I have a server with a RAID1 root partition, but it has a small partition for /boot on each of the two drives: I 'dd' one to the other whenever an update is made. Unfortunately the /boot partition is ...
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2answers
35k views

Booting Ubuntu Failure : error: attempt to read or write outside of disk 'hd0'

I have installed Ubuntu 12.10 in a Western Digital external hard drive (320GB). This is a complete installation, not a live USB. When I plug it in my HP desktop I go to the BIOS settings and boot off ...