GRUB (GRand Unified Bootloader) is a multiboot bootloader from the GNU project. This tag is for questions relating to the legacy version of GRUB. Use the GRUB2 tag for questions dealing with GRUB2, a rewritten version.

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Remove Ubuntu completely from my computer and install windows

I installed Ubuntu in my machine after formatting my computer. It is now difficult to remove and restore my Windows. The problem is that I can't boot from my Windows CD. I select the option to burn ...
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0answers
37 views

How to change the partition which MBR points to?

I can not boot my computer, so I use Ubuntu 12.04 Live CD instead. I change the partition of boot loader from sda9 to sda8, so the MBR cannot point to the correct loader. How could I do now? How to ...
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1answer
165 views

Ubuntu: change kernel order

How can I change the boot kernel order in Ubuntu server 13.10? grep menuentry /boot/grub/grub.cfg menuentry 'Ubuntu' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option ...
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1answer
691 views

Windows 8 won't boot after rewriting partition table

I was recovering a deleted partition using Testdisk to rewrite the partition table. However after that, windows 8 refused to boot up. On boot, I am presented with an blue screen saying that there was ...
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1answer
2k views

Install CentOS on top of Ubuntu (dual boot)

I have a Ubuntu desktop and would like to install CentOS on top of it as a dual boot. The machine has two drives, each with one partition. I don't want to risk harming my Ubuntu installation. I'd ...
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0answers
172 views

Trouble installing Grub2 on virtual disk

I'm trying to create a virtual disk with grub2 on it. I'm doing this because I'm going to be writing a multi-boot compliant loader. I want to test this on a VM, so I need a virtual disk with grub2 for ...
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0answers
192 views

PC reboots after “Welcome to Grub” unless booted from BIOS

I have a Linux machine running on an ASUS P8H77-I. The boot drive is correctly set in the BIOS. If I let it boot normally, I see the Welcome to Grub line, then it reboots, and repeats forever. If I ...
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0answers
59 views

Grub2 Control over remote serial?

I'm trying to control GRUB2 over a serial connection, but I can't seem to get it to work or find any real comprehensive guides. I tried once, but was unable to get any output, and had to reinstall ...
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2answers
57 views

Is GNU GRUB installed under a OS, or not under any OS?

BIOS, a boot loader, is installed not under any OS. Is GNU GRUB, another boot loader, installed under a OS, or not under any OS? Thanks!
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1answer
246 views

linux live on SD card - booting with persistence automatically

i am running a live debian distro with persistence off an SD card with linux live. this is all working fine, but in order to boot with persistence, i must currently press TAB and manually type in ...
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1answer
247 views

Zorin OS not starting?

I have Zorin OS and Elementary OS installed in the same partition of my computer. I am able to boot Elementary but Zorin OS is not starting. I use grub bootloader. When I try to start Zorin OS, it ...
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1answer
51 views

recovering from grub rescue screen prompt

I have got a Grub rescue screen on a CNC machining centre and I cant get the machine to boot up. I have looked up other questions relating to grub rescue can I restore grub without a live cd. When I ...
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1answer
24 views

Create live mulitbootable flash drive with linux and windows7

So recently I have been having some trouble with my laptop, been getting bsod... So I thought, instead of carrying my external around with me and risking it becoming damaged, why not create a ...
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0answers
62 views

Razer Anansi doesn't work in GNU GRUB 2

My new Razer Anansi keyboard does not function in the GNU GRUB version 2.00-19ubuntu2 bootloader that's running on my machine. The backlights do not turn on, and the keyboard is unresponsive. This ...
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1answer
2k views

Can't boot into Windows with Grub | Debian install

I have Windows 7 installed on a second harddrive, and I just installed Debian on my first hard drive. Sadly, the bootloader (grub2) is not picking up my existing Windows installation, and I can't ...
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0answers
464 views

Dualboot Fedora 20 + Windows 8 on separate drives

Well hello there, I have a little problem with my dualboot setup. So I decided to dualboot Windows (for gaming-puposes) and Fedora (for everything else), and I also decided to give them separate ...
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1answer
38 views

I Lost Fedora entry point

I had Windows 8 on my laptop and i installed Fedora 19 after that. I also installed grub-customizer on Fedora and I was being able to reach both operating system via GRUB screen on start-up. Recently ...
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2answers
191 views

Debian 7.3.0 - Is GRUB necessary?

I've been playing around with Debian lately, as it seemed to me like the most logical step after starting my Linux journey with Ubuntu (I really don't like Unity and installing GNOME along side it ...
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2answers
51 views

Unable to install the linux kernel

I downloaded the Linux kernel version 3.6.10 from http://kernel.org. I was on an Ubuntu Linux when I opened the .tar file to a separate partition of 30GB. My ideal aim is to have my current Ubuntu ...
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1answer
90 views

How to install MBR on to harddrive

Little bit of background... And i may be incorrect. Someone before me, installed the MBR on one hard drive & the Windows 2008 OS on another ard drive. So when the hard drive with the MBR went ...
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1answer
317 views

Why booting is stoping at the <initramfs> prompt?

I am running Debian Xfce on virtual box(Host OS : Ubuntu 12.04 LTS).In Debian i downloaded the source code of Linux kernel-2.6.32.61 from https://www.kernel.org/ and i configured it and compiled it ...
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0answers
126 views

multi-booting Linux distros in the same partition

When I install a linux distribution, I allot the disk space to be used during the installation. I could only use up to the allotment. When I am running out of disk space I have to manually shrink one ...
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0answers
44 views

How to copy GRUB from a 64-bit system to USB drive usable for a 32-bit system?

In order to have GRUB on USB drive, we have to clone it from somewhere it is installed. I need a USB drive with Linux (Ubuntu) in order to repair a 32-bit system. I have a 64-bit system where I will ...
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0answers
119 views

Grub Network Boot, where do system files go?

I have made a folder structure for network boot using PXE and Grub with the command grub-mknetdir. I have put those files in a valid served tftp folder on Server Machine. I have put a valid kernel ...
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1answer
233 views

Grub Customizer Crashes, reset Grub settings

I have a problem with Grub Customizer, I installed it and re-installed it, but every time I run it, it crushes before I can do anything. The thing is my Grub 2 Bootloader now is full with previous ...
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1answer
1k views

GRUB2 documentation about rd.lvm, rd.luks, and rd.md options

I was searching for documentation on how the options rd.lvm.lv, rd.luks.uuid, options work, but could not find anything relevant. The official documentation does not mention them. After installing ...
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2answers
275 views

Removing Windows entry from GRUB menu

I have installed Fedora 20 on an external hard drive partition. Windows is installed on an internal hard drive partition. When I boot from USB storage device (that is the external hard drive), GRUB ...
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2answers
739 views

How to add a new kernel entry in grub2? [duplicate]

Please anybody help me! I am building kernel from source code downloaded from http://kernel.org. I successfully built it and installed modules. Now i want that my kernel option should come at the ...
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1answer
37 views

Installed #! Linux with encryption; computer no longer boots

I am rather stumped as to what to do at this point. I installed #! Linux with the encryption option (using whole disk). Afterwards it installed grub as well. The computer no longer boots at all ...
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0answers
113 views

how to run xv6 OS after booting the computer?

I am learning the OS concepts with XV6 OS (for educating) and currently run it with qemu emulator in my ubuntu OS. and I read here to add menu entry to the grub when boot. I add these lines to the ...
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0answers
149 views

Using Grub to boot a raw disk image

I'm wanting to create (for personal use) a disk image which I can load from VirtualBox and also which will boot off my USB drive. My USB Drive currently has a number of ISO's, and I can select the ...
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1answer
62 views

I want to bring Lubuntu to the first position and bring Zorin OS to second position in GRUB Menu

So, I installed Zorin OS and now want to bring back my lubuntu to the default position. I am a newbie so please give a Brief answer I want to bring Lubuntu to the first position and bring Zorin OS to ...
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2answers
608 views

dd to clone 2 hard drives with 2 OSes and an encrypted partition

So, I have a question with this complex back-up process. My computer has a 32GB SSD, where Ubuntu 13.10 and all programs that run on that system are located. There is only one partition on that drive, ...
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1answer
132 views

How to repair bootloader

To make a long story short; I installed some linux (pear 8), couldn't run it for some reason (error from the grub loader), then, I couldn't start windows 8.1 also, some error message. I used ...
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1answer
179 views

Which hdX,Y do I use when trying to repair grub rescue without live cd/usb?

I deleted my linux mint partition not knowing that it would cause me to be unable to acess ubuntu, i have found another artial on how to fix it without a live cd/usb but i dont know what hdX,Y to use. ...
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0answers
34 views

Repair Windows 8 Bootloader within Ubuntu

I was trying to boot Ubuntu from the Windows bootloader using EasyBCD, but it ended up removing Windows from the menu. I ended up reinstalling Ubuntu and now I have Grub with Windows 8 as an option. ...
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0answers
11 views

Ubuntu on shared partition - boot failure

The computer I’m working on has two OSs, namely Windows 7 and Ubuntu 13.04. I am under the impression that Ubuntu has been installed from within Windows, although I am unsure about the relation ...
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0answers
17 views

Add centos6 to grub menu list from separate HDD

I have installed Centos6 on a separate hard drive from my ubuntu 13.04 installation. On /dev/sda I have ubuntu and windows dual booting, and that works fine /dev/sdb is my centos installation, and ...
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2answers
92 views

Can't boot operating system

I have a 1TB hard drive containing Windows 7 Home Premium and another 0.7TB hard drive containing Ubuntu Studio. After I installed Ubuntu, I got the new GRUB boot screen, and I wanted to remove it and ...
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1answer
674 views

ubuntu 12.04.3 LTS grub error

I downloaded the .iso file for ubuntu desktop 12.04.3 from the official download page of ubuntu. I am using a 64bit system with the following specs: -Intel i7 3610QM - 1TB HDD - 8gb ram - asus ...
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0answers
305 views

Dual Booting Kali Linux with Windows 7. Atheros Killer E2200 not found + 2 different HDD

I'm having trouble installing Kali on a MSI GE70 2OE with a SSD HD and a standard SATA HD. I've installed W7 on the SSD, and then partitioned my SATA in two parts: One 800Gb for W7 and another 200Gb ...
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1answer
123 views

Does Installing bootloader to the MBR affect “Master Partition table” in any way?

I'm a learning grub2. I have a system with 4 primary partitions, with Windows 8 installed on drive C. I'm planning to install grub on the MBR, so I can boot ubuntu/backtrack.iso images. I know that ...
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1answer
66 views

Can't access Ubuntu or Windows after shut down the Ubuntu

I'm using Ubuntu 12.04 LTS and Windows 7 as partition. I was using ubuntu for some time and tried to shut down. But it doesn't shown shut down dialog box. So I again tried to shut down from top right ...
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0answers
107 views

Does my computer fail to boot because I removed RAM?

I have a dual-boot (Windows 7 64-bit and Linux) system. A couple weeks ago I doubled my RAM from 4GB to 8GB. However, the new RAM was causing all sorts of boot problems with both Windows and Linux, so ...
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1answer
379 views

unable to boot windows or linux, grub rescue

I recently set up a dual-boot on my laptop with windows 7 and linux mint. Then I deleted the partition which linux mint was on, that turned out to be a very bad decision. When I try to boot I get: ...
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1answer
260 views

Can grub load windows from an external hard drive?

I have a computer running Debian 7.1. What I want to do is to add another hard drive to it and install windows on the new drive, so I can run photoshop, some games and other software not available in ...
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1answer
71 views

Windows startup errors/GRUB “gone” [duplicate]

My problems: Windows 7 is not working and GRUB is "gone". This is what's happend: Note: my OS is in Norwegian so I tried to translate it as good as I can. I'm on the internet when there come up a ...
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0answers
48 views

Grup graphics lag

I've just set up Ubuntu 13.10 on a new laptop. It's a thinkpad T540p and grub is having some really strange problems. After the bios flash screen grup starts to load. The screen goes black and the ...
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2answers
2k views

Change Windows 7 Boot Configuration Data from Ubuntu?

I have a Dell workstation that had Windows 7 installed on it. I added a second HD and installed Ubuntu to that using WUBI. This worked fine as a dual boot system for a long time but then the primary ...
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3answers
745 views

PC can't boot even from a live USB - probably corrupted bootloader or MBR

While getting rid of dual-booted Linux I tried recovering Windows 7's bootloader with EasyBCD. (one-click process described in this video) However, something went wrong and now GRUB is gone as it ...