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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How do I get GRUB2 to boot to cloned Windows 8 disk?

I have a system up and running with Ubuntu and Windows 8 using GRUB2. I cloned the Windows partition to a new SSD with sudo dd if=/dev/sda1 of=/dev/sdc1. I partitioned the second SSD the same as the ...
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11 views

Getting Dual-boot to work on (non?) UEFI system.

This is the first time I'm working on a Laptop with UEFI so bear with me. I'm gonna bullet-point this to make it quick: HP Envy 6 Windows 7 Preinstalled Default BIOS setting: Legacy Support - ...
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Ubuntu installation: GRUB fails to install

Many times I've tried installing Ubuntu in an computer, however it always fails to install GRUB. It always displays an fatal error message. I boot the Ubuntu network installer via an pendrive with ...
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13 views

grub-mkconfig generating a shell script instead of grub.cfg

I had some problems with Ubuntu installation, I couldn't install GRUB, so I installed syslinux. Syslinux also had some problems with booting, so I just downloaded and burned super-grub2-disk and ...
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1answer
25 views

Grub from ubuntu and grub from Mint

I installed Ubuntu 14 in a partition of my computer having Linux Mint 17 installed. Then I uninstalled Ubuntu and the grub dissapeared and I couldn't use anything, so I reinstalled Ubuntu and the grub ...
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17 views

Windows boot problems after installing Ubuntu

I have been using Windows 8.1 on my laptop(lenovo) for a while now and decided to try and install Ubuntu so I can dual-boot Windows and Ubuntu. So today I installed Ubuntu 14 on a separate partition ...
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24 views

Cannot boot onto any OS after deleting Linux partition on UEFI system

Today, I decided to delete Ubuntu 14.10 from my computer. Everything was OK, I had created the USB recovery drive of Windows 8.1. After formating the Linux, I restarted. Sadly, I forgot to delete the ...
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1answer
7 views

SuperMicro won't boot (won't POST) after trying to modify GRUB

I have a SuperMicro in this configuration. We installed Ubuntu 12.04 on it and I used it for over a year until finally upgrading to 14.04. I upgraded from CD choosing only default options, and the ...
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22 views

Grub installed as UEFI instead of legacy

I've been seeking answers to my GRUB problem for a while, but now I have a theory. When I first set up my computer (Alienware M17x) my research told me that Linux would have to be booted in an ...
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66 views

Windows 8.1 Dual boot Error: cannot find image (/EndEntire)

My dell 7537 laptop had pre-installed Windows 8.1 Pro. I installed CentOS 7 making dual boot with Windows 8.1 Pro by getting /boot/efi from Windows Boot Partition. I can easily access CentOS but ...
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1answer
36 views

Migrating existing Debinan installation to LVM on LUKS with encrypted /boot

I have a VirtualBox with Debian Jessie. After some point I decided to create new virtual drive, encrypt it with LUKS, and copy old system to it without reinstalling. I've used several guides (1,2,3,4) ...
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Does grub2 try to load stage 1.5?

I try to hunt down a multi-os boot problem but for this I have to understand what does GRUB2 trying to do. The mbr was overwritten by grub2 at debian wheezy 7.7 installation. As wikipedia states: ...
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1answer
55 views

Windows doesn't boot after removing Ubuntu: grub black screen

I had Ubuntu and Windows installed in dual boot. I wanted to remove Ubuntu and, following suggestions online, I eliminated Ubuntu partitions. When I restarted PC I got this on black screen: "GNU ...
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1answer
81 views

Windows 8.1+Debian 7.7 (GRUB) Dual Boot across two SSDs not allowing restoration of MBR for Windows

I've tried too many different things to list, but I'll explain the main ones. SSD 1 => Windows 8.1 (Primary Boot in BIOS) SSD 2 => Debian 7.7 GRUB is currently in place as bootloader. I've ...
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24 views

Grub2 error: out of disk. On fresh install

Fujitsu-Siemens Amilo mini UI3520, HDD replaced with an SD card adapter. In the SD card adapter there is a fake oversize SD card from china, with a partition containing the working sectors only. The ...
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45 views

Triple boot with 2 hard drives with XP, Ubuntu on one, Mint on an other

I had a dual boot system using a single HDD with XP and Ubuntu, which I have been using for a while. I have since added another HDD, and put Linux Mint on it. The installation appears to have broken ...
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18 views

How to recover my ubuntu (start ubuntu from a raw disk partition)

I have windows 8 PC. 931 GB HD (641 windows and 200 gb for ubuntu.) windows and ubuntu in different drives. Ubuntu partition is a raw type of disk drive while windows is a ntfs. when I needed to ...
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32 views

Install Debian to USB without unplugging Hard Drives

As the poster of the following question Install Debian To USB With State Saving I want to install Debian TO a USB drive. The problem is that in said question is said to make the process easier if the ...
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1answer
24 views

Move around an Ubuntu installation without losing its booting ability?

I have a multiboot laptop. I need to re-arange its partitions in order to eficientizice HDD usage. I found out that when I move my Ubuntu 14.04 installation it loses the ability to boot. After ...
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37 views

I am getting different internet speeds on different computers with the same settings

I have two Crunchbang machines with identical /etc/sysctl.conf and /etc/default/grub files. On both of the sysctl.conf files I have ipv6 disabled, and the grub files are at their defaults. However, I ...
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69 views

Does the Grub error “disk `hd0,gpt2' not found” mean my harddrive has crashed?

I left my Linux box running overnight, and I came back the next morning to find this: Does this mean my harddrive has crashed or is crashing? Or, is this likely caused by some other issue and ...
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49 views

How to backup/restore GRUB without reinstalling Ubuntu?

I need to remove grub to disable Hyper-v . I couldn't find any solution to achieve this .As many solution exist to this but they doesn't satisfy requirement . I would like remove grub and then again ...
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35 views

Grub Rescue Mode

I was trying to partition my C drive into two drives using an external tool which then asked me to restart the system. But as soon as I restarted, grub rescue shell opened instead of the grub menu. ...
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72 views

Grub and a blinking cursor

From last two days. I've been trying to Install Arch Linux on my PC (dual boot with windows xp {xp is already installed}) I failed two times due to not following Arch's beginners guide on Arch wiki. ...
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27 views

Computer Randomly Keeled Over

Ok, so my computer will not boot Windows 7. I have a dual boot Windows 7 and Ubuntu 14, where I had to click enter on Ubuntu's Boot Menu (In Grub) to get to Windows 7. I turned on my computer on the ...
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19 views

Path `/boot/grub' is not readable by GRUB on boot. Installation is impossible. Aborting

Whenever I try updating grub, I get this error: # grub-install /dev/sda Path `/boot/grub' is not readable by GRUB on boot. Installation is impossible. Aborting. and # grub-mkconfig -o ...
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21 views

Boot FAIL with reinstall

Some months ago I was trying to install Ubuntu, but there were some problems with GRUB. It would not appear while loading. 2 weeks ago I installed Windows 10. After 3 days I did not like it, and ...
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3answers
54 views

none of the f-keys work to get into boot menu or bios

I have a lenovo V570. I had a dual boot of ubuntu/windows8 using GRUB. I happened to mess up my ubuntu system and the ubuntu option has disappeared from the GRUB menu. I still have the ubuntu flash ...
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2answers
77 views

Windows 8.1 cannot be started from grub2

today I decided to use linux again after installing Windows 8.1... I've tried to boot one of the already existing Linux partitions on my computer but I wasn't successful. So I installed PinguyOS (A ...
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1answer
24 views

Does msconfig's boot setting show for Windows Bootloader entries?

I noticed on msconfig a boot tab. Currently, it has just one entry--Windows 8.1. If I were to dual boot Ubuntu into the computer, and use Windows Bootloader as my bootloader instead of GRUB, using ...
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1answer
37 views

UEFI strange behavior

Hi have a toshiba Satellite L50-A1-D6, with the latest (14/11/2014) bios update. I have removed windows8, completely formatted the HD ( in GPT ) and installed Linux (Ubuntu but this is not really ...
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31 views

Can't boot from any source

I recently tried to install the Windows 10 developer preview on my laptop. The installer seemed to hang immediately after I selected my install partition, but I left it for about an hour to make sure ...
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1answer
64 views

Can't get Windows 8.1 to appear in loader list in GRUB

I have a Dell laptop with Win 8.1 preinstalled and wanted to dual boot to Linux. So I partitioned off 100gb of the main and only hard drive and installed Kali Linux (Debian 7). It asked if I wanted to ...
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1answer
99 views

grub-mkconfig doesn't detect /boot

lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sda 8:0 0 596.2G 0 disk ├─sda1 8:1 0 25G 0 part /mnt/arch ├─sda2 8:2 0 2M 0 part ├─sda3 8:3 0 4.5G 0 part ...
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23 views

GRUB (with theme) messing up graphics after booting an entry

I have to set up a HP ProDesk 600 G1 desktop computer: Intel i5-4590 CPU with integrated HD Graphics 4600. When using a theme in GRUB (no matter which one), selecting an entry in the menu and booting ...
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28 views

Install grub for multiple OS

On my PC, I have Ubuntu 14.04 and Mageia distribution. Recently I installed Windows 7 on a partition but could not get my grub back. I tried boot-repair but in vain and mageia is getting loaded. How ...
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38 views

Can't bood freebsd install

I have an amd64 architecture, three hard disks and grub2 in efi mode. FreeBSD is installed in the third disk using a gpt layout with another partition that doesn't contain an OS: partition 1 (NTFS) ...
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1answer
63 views

Grub2: “Invalid partition table!”

I have recently had to change bootloaded from my old syslinux to GRUB2. Since I have installed GRUB2 bootloader I am getting the following message on every boot: Invalid partition table! The ...
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34 views

Centos6.5 can't use serial console but can see serial output messages during boot up

I configure CentOS 6.5 x86_64 version to support serial console. I edit configuration files as many people suggest. In GRUB, Add these two lines: serial --unit=0 --speed=115200 terminal --timeout=5 ...
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1answer
49 views

Computer won’t boot directly from new SSD

I got a new SSD and installed Elementary OS Luna onto it. But I can’t boot directly from this drive. I always have to select that I want to boot from the old HDD and than select in Grub, that I want ...
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126 views

Boot Ubuntu, Windows 8.1, and Windows 10 Technical Preview with Grub

On my computer, I have two hard drives: one that contains Windows 7, and another that has Ubuntu, Windows 8.1, and Windows 10 Technical Preview. When I turn on my computer, Grub prompts me to select ...
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35 views

Grub Loader doesnt appear

I have Windows 8 in my Samsung laptop. I wanted to install kali-linux, so I downloaded the image and burned it into a dvd. When I installed it kali-linux told me to remove the dvd and it completed the ...
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1answer
15 views

initramfs fails to boot ubuntu 8.10 server

I have recently compiled my linux kernel (3.16.2-x) and tried to install it into two different ubuntu 8.10 server virtual machines appliances. Following is how the upgrade process looks like: ...
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1answer
51 views

How to hide grub menu on boot and show it only when pressing a certain key?

I want to install linux in a machine, along with windows, but I wouldn't want people to notice. So I thought if there was some way to hide grub menu on startup to make it directly boot from the ...
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1answer
17 views

Accidentally deleted files from /boot

I was trying to build a linux kernel for ARM, and, agh, I don't know what came over me and I executed "make install". It doesn't end there either: while attempting to delete the ramdisk and kernel ...
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update-grub creates a menu entry with read only option

I am trying to automate the installation of a new linux kernel across a data center. After the installation, my script runs update-grub to add an entry to the grub menu. It updates ...
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14 views

Boot Debain with external monitor as primary display device

I have an old HP laptop with non-working display. So i decided to convert the laptop to a private server. I connected it to my TV and installed Debian 7.7. The installation was smooth with the display ...
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1answer
298 views

Ubuntu Server 14.04 LTS - GRUB fails to install on a VM

I'm trying to install and run Ubuntu Server 14.04.1 LTS on a VirtualBox for testing purposes. However, I can't even pass the installation process without errors, and it will fail to install the GRUB ...
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1answer
59 views

Last Windows 8 update removed Grub

I have a dual boot with Windows 8 and Fedora 20. Since 2 days ago, it worked well, but actually I rarely use W8. I booted briefly on it and it decided to install some updates, which made Windows ...
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1answer
28 views

Access first to GRUB in dual boot with WINDOWS 8

I've already install a dual-boot verison of ubuntu on my windows 8. When I launch my computer, I don't see the grub, it launch windows 8. During the launch of the computer I can press 'esc' so I get ...