Grub2 is Grub version 2, a multiboot bootloader from the GNU project.

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Win XP, Win 8 and Linux in Grub2

For the following setup: kellogs@kellogs-PC:~ > sudo fdisk -l [sudo] password for kellogs: omitting empty partition (5) Disk /dev/sda: 160.0 GB, 160040803840 bytes 255 heads, 63 sectors/track, ...
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27 views

Can I safely convert my disk to GPT using diskpart with GRUB 2 installed?

I am wondering whether I would be able to convert my disk 0 (with my system partition, Windows partition, and Ubuntu partitions) from an MBR to GPT disk without loss of data and still being able to ...
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23 views

Booting Ubuntu 9.04 Server from USB, without BIOS support?

I have a very old laptop (a Winbook) that I've been meaning to turn into an IDS, but I'm having some problems getting Ubuntu 9.04 to boot from my USB key. The BIOS does not support USB booting ...
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10 views

Debian grub2 syntax error

I recently upgraded Debian to Jessie, and the grub2 menu entries appear like this: menuentry 'Debian GNU/Linux, with Xen hypervisor' --class debian --class gnu-linux --class gnu --class os --class ...
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32 views

Grub2 immediately boots into Linux

OpenSuSE 13.2, running grub2. SHORT VERSION: Yesterday I had a normal grub2 boot menu and could choose to boot (successfully) into Linux or Windows. Today, I see the grub2 header displayed for a ...
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36 views

GRUB 2 stops dual booting Windows 8

I own a laptop with two hard disks. Windows 8.1 is installed in UEFI mode on the first disk, and I recently installed Gentoo on the second one. Now I want to be able to select the OS on boot in GRUB2 ...
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20 views

Minimal linux USB with Grub

I've been using this site for quite a long time now, and today I have a question for you. I have several PCs with dualboot between windows and Linux, and recently after upgrading one to windows 10 my ...
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72 views

Grub rescue command line, chainloading Windows 7 installer

I currently have grub2 installed on a Baytrail tablet along with Ubuntu 14.10 (64-bit) and Windows 8.1 (32-bit). The tablet comes with 32-bit UEFI only firmware, and a 64-bit atom processor. Using ...
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65 views

Windows XP missing hal.dll error after installing Ubuntu

EDIT: The problem is due partitioning, most of the following might've not influenced the outcome. I was dual-booting and I wanted to make some unspecified partition space and I've decided I didn't ...
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43 views

Unchaining grub2 and windows bootloader(s)

I would like to find out if it is possible to unchain grub2 and windows boot-loader and I could not find a convincing answer anywhere, perhaps it is just not possible... The situation is as follows: ...
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58 views

how to rename the Linux OS name installed in USB stick (LIVE USB)

I am looking for the solution for modifying the query. The requirement is as follows Installing the Any Linux OS in USB stick, here i have installed Fedora 21. Now I need to rename Fedora OS to "Nik ...
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55 views

Invalid partition table

Before getting this "invalid partition table!" warning, I successfully installed Debian and Ubuntu side by side. No problem, no boot warning, no mess with grub, everything ok. But yesterday I decided ...
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15 views

USB Boot only works part of the time

I have been having problems booting off of my external USB drive, or usb flash drives. Oddly enough, it works, some of the time, so this is not a case of invalid configuration or non-bootable disks. ...
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14 views

IPXE booting with changed MAC address (eth0 hw address)

my internet provider recognizes users by MAC address. I have made up my mac address and now I have problem. I want to boot arch netinstall via pxe... but I cannot change my MAC address easily. ...
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37 views

Windows 7 screen not displayed after installing Ubuntu

I bought a new Lenovo laptop with DOS and I wanted to make it dual boot (Ubuntu 14.04 and Windows 7, both 64 bit). I took the following steps to install both systems: Installed Windows 7 OS ...
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1answer
149 views

grub-update and “/usr/sbin/grub-probe: error: unknown filesystem”

I've got a Debian 7 Wheezy (stable release) and my GRUB suddenly refuses to see one of my partitions. It is an OS X HFS+ partition on the GPT disk. This behavior was introduced in the month or so and ...
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17 views

How can i use a windows 8.1 mounted usb to repair a corrupted windows 8.1 that's on grub?

So I have a windows 8 partition stuck on "your pc needs to be repaired f8 for tools and enter to continue" both options make the screen flicker black and stay on the same page.. winload.exe is the ...
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34 views

Trying to Fix MBR

I first decided that I wouldn't need Windows anymore, so I deleted it when I installed Ubuntu (I realized how wrong I was: no visual studio nor texnic center). Now I tried getting Windows back, so I ...
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43 views

Can't access Windows after linux mint update

I have a dual boot system with Windows 7 and linux mint. I recently updated my mint distro by installing the new version (in the process eliminating the older version.) I can now use linux mint fine ...
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1answer
56 views

Which partition manager to use for dual-boot Windows, Linux on SSD? [closed]

I have Windows 8.1 and Linux Mint dual boot (Grub) on an SSD disk. I want to resize Windows partition to take less space and give it to Linux. I don't want to mess up my computer, so I wanted to ask ...
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2answers
84 views

How to register/convert a restored linux OS (bios) to EFI booting

First let me explain my current set up. I recently scrubbed my two main drives and converted them to GUID. On the primary drive (sdb in my case) I have created an EFI boot partition (ESP) on ...
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83 views

Windows 7 load from GRUB 2.02 beta, Fatal System Error

So, I have a dual boot pc, with Ubuntu on one disk, and Windows 7 on another, in a separate partition. A couple of days ago, I tried to log in to Windows, and have been getting this message ever ...
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37 views

Is there a way to randomize GRUB2 boot loader background?

Is it possible to select a random background for GRUB2 during boot-up from a folder? I tried to add a small script to the /etc/default/grub file but it must be updated manually to select a random ...
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155 views

how to get grub menu back in tripple-boot setup

I have windows 8.1 preinstalled on my laptop I installed Linux Mint 17.1 for a time and dualbooted then I decided to also install Windows 7. After this I can just boot into Windows 7 and Windows 8.1. ...
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17 views

Change grub2 behavior

I installed fedora on my computer. GRUB is different. The last grub I had showed no menu and allowed me to press SHIFT key to bring up a menu. GRUB2 shows a complete menu and takes 5 seconds to boot ...
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265 views

Install grub on a disk drive by UUID

There is a way to indicate to grub to install on a device MBR by UUID instead of using /dev/sdX ? I'm setting a external eSATA hard disk with NixOS, and obviusly, the hard disk not would be always the ...
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35 views

Running a command as another use with different permissions

I use a heavily locked down Linux system with GRUB's built-in verified boot mechanism. Consequently, I have to sign the kernels, GRUB modules, and configuration files in /boot every time I want to ...
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129 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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2k views

Boot Acronis true image and Clonezilla ISO image alone side windows 7 , Ubuntu 14.04.1

I want to create boot menu it can be boot from my (installed OS) Windows 7 and Ubuntu 14.04.1 I can add Windows 7 alone side Ubuntu in "Grub 2" with "Boot-Repair" but i can't boot Clonezilla and ...
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64 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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41 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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Grub2 not bootable

I replaced the internal HDD of my Lenovo Z570 by an SSD drive. Then I put the HDD in an external case and tried to boot it over usb; but the BIOS of my PC does not recognize it as bootable and just ...
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91 views

Booting from USB sends me to Grub rescue mode

I have Ubuntu 14.10 and I followed the instructions here perfectly and I used the BIOS to boot from my USB (F12, InsydeH20) and after a few seconds, it sended me to Grub rescue mode. Whenever I boot ...
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528 views

After installing minimal Centos 7 on computer, unable to boot on Windows 8.1 using grub2

I have installed Centos 7 minimal on computer, where was only already installed Windows 8.1. After that, I'm unable to boot Windows, whatever is the boot order in Bios, only grub2 with Centos start. ...
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397 views

How to recover kali linux grub rescue?

When I booted my computer in live USB mode and tried to mount the boot partition via terminal I encountered the following error mount: can't find /dev/sda14/mnt in /etc/fstab or /etc/mtab
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178 views

Switching a VirtualBox Ubuntu Server VM from UEFI to BIOS

I have a virtual machine running in VirtualBox of Ubuntu Server 14.04.1 LTS x64. When I initially set it up, I configured the VM to use EFI instead of BIOS. But, it turns out VirtualBox's ...
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50 views

From windows 8.1, how can I allow an already existent debian installation to be dual-booted?

I have a chromebook c710-2856, and have been in the process on installing windows and debian on it in the past few days. Right now, I have a 250 GB hard drive instead of the default 16 GB SSD, and I ...
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145 views

How to load FreeDOS iso from Grub2?

I'm currently loading FreeDOS iso (freedos-1.0-full.iso) from Grub4DOS, and Grub4DOS is actually first loaded from Grub2. Grub2 grub.cfg menuentry "FreeDOS 1.0" { setroot=(hd0,1) linux ...
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146 views

EasyBCD won't boot Debian after upgrade

I have a desktop that dual-boots Debian and Windows 7. When I turn it on, it uses the Windows bootloader, as configured by EasyBCD. If I select Debian, it then chainloads(?) GRUB, which lets me ...
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21 views

Is secured GRUB unable to load drives?

Basically I'm trying to get GRUB's secure boot capabilities (no connection to UEFI) up and running. I've got a fresh install of Ubuntu 14.04 running in VMware Player 6 and after generating a signing ...
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30 views

Make GRUB changes permanent

At the GRUB command line prior to booting the kernel, I entered the following commands: trust /boot/boot.key set check_signatures=enforce Since I don't know how to boot my kernel from the command ...
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Make certain files read only on boot

I'm running Ubuntu 14.04.1 LTS and GRUB2. I'm wondering if there is a way that, upon booting the kernel, I can have the kernel make certain files read only. I want this status to persist for as long ...
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144 views

Windows Boot Manager - Grub2

I have 3 partitions on my hard-disk with each one operating system. Windows 7, Windows Server 2012 R2 and Ubuntu 14.04. In the past I had (pre-)installed Windows 7, I shrunk some of it's disk size and ...
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131 views

how to properly set up grub2 with uefi on gpt

I've recently installed fedora on new ssd disk. Info: GPT, uefi partitions: (lsblk) NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sda ...
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96 views

Boot different OS if booted via Wake on LAN with GRUB

I have a PC running Windows and Linux. I want the Windows system to be the default system because this PC is mainly used for gaming. I do, however, occasionally use it as my remote development box. ...
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30 views

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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GRUB Booting from subdir Issue

I am encountering a boot issue: My primary linux distro was not installed on / but (I don't know why the developers chose it) on /@/ which implies that my rootfs lies under /@. However when I ...
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2k views

Add windows partition to grub2 boot loader in centos 7

I had windows 7 installed on my laptop. Then I installed centos7. Installation completed successfully, but when I reboot I can see only centos and centos recovery. I did not see windows partition. ...
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125 views

How to install Windows in a fresh formatted hard drive?

I was having problem concerned with dual boot of Windows and Ubuntu because I had Ubuntu already installed in my system. Well, there was something wrong with my boot/efi partition's VBR or my hard ...
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62 views

Multi-distro LINUX from grub2. LVM Vgs not detected

Having a very weird problem with LVM in linux earlyspace. My system runs with 4hdds. Three are sata and one is eide/pata (/dev/sdd). I'm using grub2 to manage several OS's (two debian, one ...