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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GRUB rescue : Can not access BIOS

I just got a grub rescue after installing Debian Jessie, Here is what I've done : error: file not found. Entering rescue mode... $ ls (hd0) (hd1) ... (hd1,gpt2) (hd1,gpt1) (cd0) $ set ...
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1answer
125 views

2 x Windows 8.1 + Linux - boot configuration

I've got a strange situation. I must install two windows 8.1 systems and one linux (for example Debian) on one machine (one disk). I know that there is a huge amount of information about it on the ...
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1k views

Can't access BIOS and can't boot from USB when HDD is plugged in

I have a Samsung Ultrabook series 5 notebook (NP530U3C), and recently I've been tinkering with Linux distros. I've had a dualboot setup with Windows 8 and Linux on this computer before, and all went ...
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173 views

Linux Mint 16 32-bit (Ubuntu) forgets password, even after resetting via grub/bash trick

I just installed LM16 using a live USB stick. Install went fine, and at the user step I made a password but chose 'log in automatically'. On first boot without the usb stick, it logged in without ...
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638 views

Can I change a ubuntu partition from sdb to sda?

I have just gotten into Ubuntu and I'm not quite familiar with partitions etc. But I have Ubuntu installed on /dev/sdb. But I want to move it to /dev/sda. Current partition listing below. Can I just ...
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2answers
180 views

MBR bootsector that boots the active partition

I have the burg bootloader currently installed on my mbr (+ the following sectors), and I would like to install it on the boot partition, and replace the mbr with a simple one that will boot the ...
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131 views

Fedora Boot Loader not verified?

I just installed fedora 20 on my sister's HP laptop from a live USB. I told it to take all of the hard drive. It gives me two options from grub: Fedora, with Linux 3.11.10-301.fc20.x86_64 Fedora, ...
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1answer
5k views

How to Dual-Boot Kali-Linux and Windows 8.1?

I have Acer V3-772G 1 TB Harddisk. I shrinked my biggest partition in order to install Kali Linux. When installing Kali, GRUB couldn't detect windows 8 so I kept going on(I installed grub as my ...
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140 views

Keyboard issues with GRUB upon cold boot

I am facing a very weird issue with my keyboard while using GRUB. I'm going to be as detailed as possible and outline all the methods I've tried to fix this issue. Let me first describe the issue ...
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1answer
142 views

Problems with starting windows after installing new ubuntu os on multiboot pc

Before I recently upgraded my ubuntu OS, I had a multiboot with windows 7, windows xp and ubuntu. When I started the computer, the grub bootloader would usually show the options: -windows 7 and ...
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24 views

OS grub page not Loading

My laptop was working fine, with Windows 7 and Ubuntu 12.04, when suddenly the grub page stopped loading. Whenever I switch on the laptop, I get the company's name (Asus in this case), with the Intel ...
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288 views

Dual booting CentOS 6.4 and Ubuntu 12.04.03 LTS

First, I install CentOS 6.4 (64-bit) on /dev/sdb3, and subsequently CentOS install the bootload in /dev/sdb itself. Bootinfoscript indicated that the bootloader is legacy0.92 grub. Fine. Next, I ...
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2answers
388 views

Unable to load Linux after Windows installation [duplicate]

I installed Linux OS on the PC. After that, I installed Windows 7. Now, I am unable to load Linux again. How to install Grub in Windows 7?
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0answers
105 views

GRUB unknown filesystem error after managing Windows 7 partitions

I'm using Debian and Windows 7 located on one HDD, in dual boot. Windows 7 had two partitions (system partition C: and general-use partition G:). Recently I've cut the G partition in size and created ...
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1answer
2k views

Grub menu not showing for Ubuntu 12.04

This is the first time I installed Ubuntu(v12.04). I have a HP laptop pre installed with Windows 8. I installed it alongside Windows and the installation was successful. But after the customary ...
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0answers
309 views

Stuck at GRUB prompt after booting, how can I restore normal booting?

My machine was dual-booting with Windows XP and Fedora, then I tried to install Arch. While installation power went off. After that, booting always results in the GRUB prompt. Even when I instruct my ...
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2answers
355 views

Windows 7 partition disappeared from hard drive

I had a windows 7 and Debian 7 install and I've been using the computer fine for almost a year. A couple weeks ago I tried to load Windows and realized the boot option in grub was missing. After ...
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1answer
100 views

How do I remove the old versions of the linux kernel shown in grub boot loader

I am using Ubuntu. I have Linux kernel 3.8.0-35-generic, 2.6.34.14 and 2.6.34.14. I want to delete the 2.6 versions from my system, because 2.6 won't even load when i select them in grub boot loader. ...
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141 views

Accidentally deleted /boot and GRUB doesn't load, how can I restore my install?

While trying to re-install Windows (I am running Arch/Win7 dual boot) I accidentally deleted a partition labelled (in the Windows installer) as 'recovery'. I didn't fully install Windows (I lost my ...
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1answer
2k views

Kali Linux boots to command prompt (gdm3 produces error)

I just got Kali Linux working on my Macbook Pro (after much laboring). I reinstalled Kali after I wanted to repartition my HD to make it larger. I boot into rEFInd first, and load the bootloader ...
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90 views

Grub4dos Recovery Partition

In many attempts to find a tutorial on creating a recovery partition many had only partly been what I was looking for. The closest I've found is this tutorial The problem I'm having with this ...
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2answers
163 views

Unable to boot Windows 8 after an interrupted Ubuntu installation attempt

I have a Sony Vaio notebook with Windows 8(UEFI) installed,after trying to install Ubuntu 12.04 LTS(I cancelled the installation and restarted the pc) from a usb sticky,every time i turn on the ...
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69 views

Cloning Linux and Windows from two separate disks to a single SSD

Backstory TL;DR: cloned OpenSUSE from /dev/sda2 to /dev/sdc1, Windows 7 from /dev/sdb1 to /dev/sdc2; formatted /dev/sda2 and /dev/sdb1; reconfigured GRUB2 and installed it on /dev/sdc; OpenSUSE loads, ...
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1answer
918 views

Hetzner Install CentOS over 2TB HDD?

Wanted to just check here before i open a ticket at Hetzner. I just got a server from hetzner with 2x 3TB. I want to set them up in a RAID0. I've ran the "Installimage" command once in rescue-mode, ...
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1answer
3k views

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

Recently I tried to exit out of a game client (Diablo 3) and my computer completely froze up. I tried to use Ctrl+Alt+Delete to force it to close after about 3 minutes and got no response. After ...
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2answers
208 views

How can I get my Thinkpad T420 to boot directly to GRUB, skipping the boot menu?

I installed ArchLinux 2014.03 on my Thinkpad T420 (no dual boot), and when I turn on the computer it takes me to a boot menu with only one option: arch_grub. To continue I have to press enter, which ...
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1k views

Dual Boot: Windows Vista - Linux Mint. Delete Partition , fix MBR

Scenario: Windows Vista Basic installed on Hard Disk Created a partition (after Windows Partition - i.e Windows is in the 1st Partition) Installed Linux Mint Cinnamon 64-bit (UP6) on new partition ...
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2answers
23 views

trouble loading any OS's

I am having some problem installing OS's. I don't have any OS running on my laptop right now. I recently deleted all my partitions and data on the hard drive. Now i want to install windows 7. but ...
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1answer
6k views

grub2-bios-setup: warning: this GPT partition label contains no BIOS Boot Partition; embedding won't be possible

Grub2 won't install on a hdd with GPT partition label (without --force), complaining about a missing BIOS boot partion - even though there is one. The first partition (1 MB) is supposed to be used as ...
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350 views

How to create a Live USB with Persistent mode of customized kernel (buildroot)

Using Buildroot i have builded my kernel image the output images are: rootfs.tar, rootfs.cpio, rootfs.ext2 and bzImage With use of above i need to create live usb with persistent mode I have used ...
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2answers
100 views

Linux kernel doesn't load removable device with system on it

I'm having issue with booting into my Fedora 19. First of all I have to mention that I "extracted" that system from virtual disk (simply DD the content of root and boot partition on physical disk), so ...
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1answer
64 views

Chainload none-EFI Linux from EFI Linux

I read somewhere that it might be possible to boot none-EFI Linux from EFI Linux. If so, If my EFI Linux is booted by grub-efi, and my none-EFI Linux is booted by extlinux. How to chainload from ...
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2answers
464 views

How to manually setup Grub2-efi to triple boot Linux

To install/due-boot Linux on an EFI-capable computer with an pre-existing operating system, like Windows 8, the UEFI - Community Help Wiki at https://help.ubuntu.com/community/UEFI have covered it. ...
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2answers
5k views

How to Install Kali Linux on Windows 8 With BCD instead of Grub

I have Windows 8.1 64-bit installed on my PC. I have been trying to install Kali Linux using its ISO and Universal USB Installer (1.9.5.2) using a USB drive since the CD drive won't work. The ...
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1k views

Dual Boot Centos 6.5 and windows 7 using USB Stick

I was trying to dual boot my system with Centos 6.5 and Win7 using usb stick. Win7 was already installed. I created a partition of 100G from Win7 for CentOS 6.5. I created a bootable disk using ...
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154 views

Boot .efi files from GRUB2

I've bought a Sony VAIO with UEFI booting and came with Windows 8 preinstalled. I successfully installed Ubuntu 13.10 and Windows 7 (triple-boot) and fixed the UEFI boot so GRUB2 is loading. I was ...
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1answer
2k views

How to set default entry in GRUB2 on EFI with FEDORA 20

I have Windows 8 dual booting with Fedora 20. Linux is the first one Windows is the third. I want windows to be the default. I am using instructions from GRUB 2. grep "submenu\|^\menuentry" ...
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1answer
330 views

GRUB fails with 'symbol `grub_real_boot_time` not found'

I updated GRUB on Arch. When I try to boot, GRUB gives the error mentioned in the title. I know that grub_real_boot_time is provided by boottime.mod, but running insmod boottime fails with error: ...
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2answers
198 views

Installed GRUB on wrong partition

On my laptop I have W7 installed on sda2 (sda1 is a 100 MB partition that W7 makes by default). I installed arch and did grub-mkconfig -o /boot/grub/grub.cfg grub-install /dev/sda I didn't think ...
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1answer
75 views

Kernel panic after trying to boot back into OS X

I'm a bit of a newbie here! I installed Linux Mint today on my MacBook Pro after creating a new partition for it. Unfortunately it didn't recognize my wireless card. After a restart and trying to ...
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359 views

Booting Windows 7 from GNU GRUB v 1.99~rc1 Command Prompt

I just bought a new HP ProDesk 600 G1 SFF pc today. I booted it up for the first time and Windows 7 booted regularly. I created a user account and logged in. A prompt to backup my hard drive data with ...
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0answers
155 views

'executing grub install dummy failed' how to fix this?

I want to dual-boot my Win8.1 PC(HPpavilion17) together with Linux Mint 16.(x64) I've tried to install Linux several times but each time it says 'executing grub install dummy failed'. I tried both ...
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1answer
236 views

Grub dual boot- debian wheezy (encrypted) with another OS

I'm trying to dual boot debian wheezy (encrypted) with another OS (win7, uses 2 partitions) In the wheezy installer I have created a bootable partition with 200M and then tried to made another crypto ...
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0answers
73 views

Use GRUB to boot a specific disk partition in MBR

I have multiple Operating systems installed on different partitions of my hard-disk, each having one boot and one root partition. My requirement is such i have to do some testing using my scripts then ...
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1answer
125 views

Have windows 7 and 8 entry options in grub

I multi-boot windows 7, 8, and ubuntu. I have them each installed on a separate sda partition. I also use a program called "grub customizer" in ubuntu. I need a way to have the windows 7 boot ...
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1answer
108 views

microsoft boot manager replaced by grub2?

I was running my pc with Win 8.1. I was thinking about trying linux for a long time so I decided to give it a try. I tried to install it several times but I was never able to boot to it, all I could ...
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1answer
315 views

GRUB doesn't show up when second hard drive is present

I just finished messing with Windows 7 + Linux Mint dualboot and finally got it to work. Grub handles the booting. It works as expected as long as I have only my main hard drive connected. When I ...
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4answers
163 views

Replace a laptop hard drive (Ubuntu and Windows 7 installed)

I have Sony Vaio laptop. The laptop came pre-installed with Windows 7 OS. Later I installed Ubuntu 12.04 and Grub. Now the hard is showing early signs of failure. How can I replace the hard disk ...
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1answer
530 views

Windows 8 not loading after Ubuntu 13.10 installation

My system was running on Window 8 Pro. One thing to note is that, my system is an assembled PC. Yesterday I installed Ubuntu 13.10 on my system. After the installation, first I was not able to boot ...
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1answer
167 views

Disable GRUB boot manager from Windows 8

I decided to get rid of the Fedora installation on my hard drive by deleting the partitions and extending my windows partition. To repair the boot loader I used a Windows recovery disc and command ...