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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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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38 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
14 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 ...
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What's wrong with this GRUB setup?

I have two hard disks. The first one contains both Windows and Ubuntu installations, but the first MBR boots to Windows and the second MBR boots, in theory, to Ubuntu. This worked fine until recently. ...
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Grub boot to rescue CD

I have a virtual machine (Centos 6.2, fwiw) that hangs on fsck. I can get to a grub (pre grub2) menu. Is there a way to have it boot to the rescue CD (Centos 7 Live) I've attached to this VM? The ...
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1answer
27 views

Bios stopped boot from usb

my pc is an ASUS RoG g750jx with dual boot : Debian Jessie and windows 8.1 , until yesterday everything was fine. Yesterday booting my pc it didn't display GRUB and directly booted to Windows,i ...
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10 views

Grub “no such device” error does not correspond to config

GRUB is failing to boot. BIOS tries to boot the second hard drive first (in Legacy Mode, and the first hard drive is Windows) but this yields a no such device: cfb69400... error. The given id does ...
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7 views

How to find a folder listed in my grub menu.lst

A friend gave me a USB stick that he had setup with a lot of useful utilities (like Hiren's Boot CD, an Ubuntu distro, a lot of hardware testing tools, etc). I want to update the version of Hiren's ...
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24 views

How can I fix GRUB on this dual disk setup?

I am dual-booting Windows and Ubuntu. The machine has two hard disks, both OSs are installed on sda (an SSD), but sda's bootloader uses UEFI and goes to Windows, whereas sdb has GRUB and boots to ...
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26 views

difference between installing grub in MBR and partition

The two command descriptions below are copied from a chroot description. I must say that I am confused by the distinction; it leads to several questions: What is the effective difference between the ...
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Unable to boot Arch Linux with GRUB

I could not understand why I cannot get GRUB to boot Arch Linux. I've installed using Evo-Loution (in an effort to simplify the process) but when I go to restart I get a PXE-E61: Media test ...
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39 views

Windows 7 changes my uefi default boot when it starts

I installed Windows 7 in a HP Compaq 6300. First I disabled secure boot and enabled legacy mode. Then I installed Ubuntu in other partition. Ubuntu detected some uefi partitions and let me create / ...
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1answer
75 views

Cannot EFI boot from Clonezilla disk image

I have created a Ubuntu Server 14.04 system that I would like to clone to several other machines with exactly the same hardware specifications. The system is an Intel NUC2820 with 30 GB SSD. The ...
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16 views

Dualboot Ubuntu Server and Centos. Grub installed in the Ubuntu partition. How do i edit the configuration files from Centos or run grub commands?

As the topic says. I'm running both Ubuntu Server and Centos. Grub is installed to the Ubuntu Server install (/dev/sda). I want to run some grub commands to edit its configuration files, more ...
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24 views

Remove GRUB 2.02 Beta 2

I want to remove GRUB 2.02 Beta 2. Due to installation of Ubuntu 14.04, GRUB 2.02 Beta 2 get automatically install. I want to replace it with GRUB 2. How to do that?
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Grub rescue after corrupted hard-drive (“read-only filesystem”)

I run xubuntu 12.04 alongside a NTFS storage partition and a windows 8 partition. I moved my MySQL data directory off the xubuntu (ext4) partition, onto the NTFS partition, and did an import of a ...
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19 views

How to come out from GRUB?

I had installed windows7 home basic and OpenSuse. Then I reinstalled windows 7 ultimate. Now my openSuse had gone. I have tried to get OpenSuse back through rescue system using live CD. But now after ...
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1answer
30 views

GRUB Bootloader selection window showing 2 times

Currently I have installed 4 os on my 2 HDDs, Windows 7, Windows XP, Ubuntu 14.04 & Open Suse 12.3, in same order. Before I have Installed Open Suse. GRUB was showing options: Windows XP Windows ...
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16 views

Creating a wizard with a grub config file

I have a grub config file that allows me to pick several pre-boot options of a debian installer. Unfortunately, I can't nest these menus because of grub's unfortunate scope rules (Scope doesn't ...
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1answer
27 views

How to move GRUB to another hard disk

I installed Kali Linux on an external HD, but in the end of installation I choose to save GRUB on it. Now, every time I boot up the computer, GRUB asks for the External HD. I tried to follow some docs ...
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1answer
137 views

How to restore Windows bootloader and still have Kali Linux

I installed Kali Linux 1.0.9a on my Windows 8.1 system today and installed it, but I don't want the GRUB bootloader menu. I want to use the original Windows bootloader. How can I do this?
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35 views

Grub rescue screen on dual boot laptop

I have a laptop with a dual boot of Linux Mint 17 and Windows 7. This evening I booted Mint and unconsciously pressed some buttons and came into a HP backup screen. I exited this screen and now my ...
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49 views

Add Windows Server 2012 R2 to Grub2 boot-loader

Short version: I have Windows 7, Windows Server 2012 R2 and Ubuntu 14.04 installed on my hard disk. I use grub2 as my boot-loader, so when I start up I can choose between operating systems. The ...
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14 views

How to change the main grub

I have two ubuntu installs, A and B. The "A" is my main install. In B, I have compiled and installed a custom kernel. Then I run sudo update-grub. The problem is that, running grub in "B", it does ...
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45 views

BIOS does not shows up Windows 8 EFI after Ubuntu install & incorrect partitioned size

I had window 8.1 preinstalled on my laptop. Recently I also installed Ubuntu alongside to have dual boot. But anyhow after install i.e. restart or due to some alteration; I can not see choices to boot ...
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1answer
37 views

Bootloader priority issue

Good day to you all. I have a problem with the bootloader on my pc. I've followed a guide and i've partitioned my SSD so that now I have W8.1 and Ubuntu 14.04. The problem is that when I switch my pc ...
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1answer
9 views

After “grub>” mensage install Fedora 20

After installing the Fedora 20 sucessfully and rebooted, I have received the message on boot: Grub> I stay stuck on this screen and don't know what to do. I think it might be a problem to load ...
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32 views

How to create bootable USB in Linux without root access?

My laptop HD died (continuously getting grub-rescue screen with attempt to read or write outside hd0 error), now I dont have a bootable CD/USB and all PCs at my workplace have non-root access (so ...
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Safe to blank MBR of a disk after adding it to an RAID1 array with mdadm?

I created a RAID1 array of two disks, /dev/sda and /dev/sdb, using mdadm. After several booting problems related to the BIOS and SATA/RAID controller of the board, I accidently created some new ...
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1answer
48 views

Grub 2.02 on vacation after first boot - Arch on mSATA USB

I have a freshly installed Arch Linux LVM inside a LUKS container all nestled on an external USB SSD. Although I have no problem with the Arch system itself, I do have a problem with Grub. After the ...
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1answer
56 views

GRUB menu not showing up

I am dualbooting Crunchbang and Windows 8.1. Whenever I start my computer, GRUB appears. However, GRUB appears not as a menu, but as minimal grub bash. After messing around for a while, the ...
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26 views

Removing GRUB when migrating to SSD

I have an SSD that I would like to migrate windows to. It previously had Ubuntu installed. After reformatting the hardrive, then using cloning software to clone the windows onto it, I tried to boot to ...
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31 views

How to install GRUB to a 4 GB SD Card

I tried to install Kali Linux with Windows 8.1 but I couldn't install GRUB or LILO so it says "Missing Operating System". How can I install GRUB to an SD Card?
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1answer
214 views

Installing Ubuntu 14.04--Grub Rescue Error after failing to turn off secure boot [SOLVED]

I am not able to start the operating system .Whenever I try to start the operating system it shows the following error: file /boot/grub/i386-pc/normal.mod not found Entering rescue mode... grub ...
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40 views

my grub is not show my win 8 along with kali linux

i install kali in my windows 8 PC but it don't show my windows in my grub I tried to update the grub but it don't work and neither it shows grub2
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Shutdown on BURG

I'm using BURG in my computer with 2 partitions: a Windows 7 and a Linux Mint 17 as well as the Sora theme. Everything works perfectly, except the shutdown button. When using the halt command, it ...
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1answer
42 views

grub2 loads vfat filesystem error

after half a day of trouble shooting I still can't start Arch properly. I use a dual-boot system and Grub usually start Arch properly but often it happens that it tries to load from an unknow vfat ...
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1answer
42 views

Grub can't find Windows 7

Using Ubuntu 14.04.1 LTS after upgrading from 12.04. I have 3 hard drives: sda has Windows, sdb has Ubuntu, sdc is a non-bootable backup drive. Before I upgraded to 14.04, I had an option to boot ...
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unable to boot ahter instalation : freeBSD

I have ubuntu installed in my system. I just installed freeBSD 10.0 in to my system. Where /dev/sda1 is where my ubuntu is installed , and /dev/sda2 is where I install freeBSD. Installation of ...
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71 views

Restoring Windows boot entry on GRUB

I made a lot of mistakes lately with my systems, and now I have an issue. After installing fedora 20, I tried to resize my windows 7 partition, and generated an error with the actual size of the ...
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1answer
168 views

Windows 8 entry is missing in ubuntu grub

I have installed Ubuntu 14.04 in my computer that already has W**indows 8 pre installed**. Now when I restarted , I cannot see Windows entry in the grub created by Ubuntu. Now i cannot enter into ...
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2answers
65 views

Is it safe to backup my HDD?

Currently I see 2 parameters reaching design limits, namely Reallocated Sector Count as well as Spin Retry Count from the SMART data. The computer boots once out of 10 attempts and I have seen BSODs ...
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62 views

GRUB: no such device

I had to reinstall Mint recently and after reinstalling, I get an error in GRUB: error: no such device: *hex-hex-hex* Entering rescue mode... grub rescue> I have tried a bunch of things, such as ...
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1answer
43 views

Boot-Repair utility asking me to open terminal and fire commands?

I just installed Ubuntu 13.10 alongside Windows 8.1. Installation is complete. Ubuntu has been installed. Problem is, there is no GRUB. So of course I downloaded the famous boot-repair utility and ...
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35 views

grub2-mkconfig on Gentoo cannot create xen entry

My Gentoo system is up to date, and I have added xen use flag to grub2 package. I saw there is a /etc/grub.d/20_linux_xen file. But when I ran grub2-mkconfig, no xen entry is created. According to the ...
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1answer
375 views

With Centos 7 as a Virtualbox guest on a Mac Host, how can I change the screen resolution of the console / command line?

I am using the minimum install of CentOS 7 with command line access only (no graphic support installed). After spending hours reading online about editing grub files, installing guest additions, and ...
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36 views

It seems OS calculates partitions' sizes/boundaries differently while hdd connected via sata or usb adapter

I have kali linux installed on my laptop. Just've bought new drive (WD 500GB one) for it recently and used combined knowledge from these two guides: http://bremford.org/tips/MigrateDiskInUbuntu.html ...
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123 views

Dual operating system, cannot boot Windows 8, tried Boot-Repair-Disk and Windows repair, GRUB, EFI

I used to have one hard drive(1TB) with Windows 8(64bit) installed, then i added a new hard drive(256GB) and tried to install Ubuntu in it. After installing Ubuntu to the new hard drive, I can only ...
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22 views

PC connects to Samba Server automatically

This is a situation where the PC connects to Samba Server (SMB) automatically. I first realized this was happening on a Windows 8.1 laptop, which is a refurbished HP Pavilion g7 from HP. When booting ...
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1answer
115 views

GRUB 1.99 CentOS 7

I just added CentOS 7 to an existing Ubuntu system (using GRUB 1.99). When I do a grub-mkconfig -o /boot/grub/grub.cfg, it detects the CentOS, and adds two entries (one looks like normal, one like ...