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

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Grub will not boot to windows

I recently installed Ubuntu with the grub boot loader that comes with it. After the install Grub fails to find the Windows. My setup: HD1 & HD2 -> Samsung SSDs in Raid0 via Motherboard ...
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1answer
12 views

Debian pvmove of root lv into raid10 device resulted in unbootable system

I was in the process of moving logical volume extents onto an raid 10 array assembled with mdadmin. One of the logical volumes moved was the root directory (debian testing system) which was previously ...
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51 views

How to setup grub fallback functionality for Centos-7

I have multi-boot environment Centos-7.1(Kernel-4.2.6 on /dev/sda3) Centos-7.1(kernel-3.10 on /dev/sda2). I want to boot through Centos-7.1(kernel-3.10 /dev/sda2) on failure of Newly installed ...
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31 views

Virtualbox: booting OS X guest on Ubuntu host on a Macbook Pro

I want to boot Linux natively, and boot the Mac's own native OS X virtually inside Linux. I've followed the same procedure as I've used in the past to boot Windows partitions in a Linux host, but it ...
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1answer
8k views

Dual-booting Kali Linux and Windows 7, error with file: “\NST\AutoNeoGrub0.mbr”

I have tried to install Kali Linux 1.0.6 alongside my current OS - Windows 7 64 bit. I have a Dell computer, with SSD hard drive only (256 GB). At first I tried installing Kali a few times and made a ...
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0answers
12 views

After shutting down windows, grub boots to command line interface

I have a dual-boot setup on my Asus Laptop. I have an SSD which holds my Windows 10 and an HDD which holds my Linux Ubuntu and a partition for data for windows. My laptop also uses UEFI. When i boot ...
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1answer
43 views

Cant start linux , boot linux

Model: ATA TOSHIBA MQ01ABD0 (scsi) Disk /dev/sda: 500GB Sector size (logical/physical): 512B/4096B Partition Table: msdos Number Start End Size Type File system Flags 1 32,3kB ...
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19 views

Grub2 not showing Windows after dual boot with Arch

I have recently installed Arch Linux from Architect and came into a problem after install where Windows 10 does not show up on the grub2 menu. The only options that show up are Arch Linux and more ...
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4answers
19k views

Can't go into BIOS to change boot device

I completely erased my Hard Drive and installed Ubuntu 13.04 on my Lenovo B570 laptop. After a few months of using it I wanted to remove it, so I reboot my computer and pressed F12 (MultiBoot List.) ...
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1answer
3k views

Boot Kali iso from HDD in existing boot menu

Currently, we have FOG as our computer imaging solution. All PCs have PXE boot setup, and FOGs boot menu is showing. What I would like to do is to add the Kali iso as a start-up option, which would ...
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30 views

Ubuntu not booting properly from Grub2Win

I installed the Grub2Win utility and was able to set up the grub2 boot loader successfully. When my system boots, I am able to choose an operating system. Windows currently works fine, but when I try ...
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1answer
3k views

Linux Mint livecd does not recognize Windows 8 partition

My system has two SSDs. I re-installed Windows 8 onto the disk0. I want to install Linux mint on the other SSD. Secure-boot is disabled, fastboot is disabled, csm is enabled I run Linux Mint 16 x64 ...
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1answer
50 views

Unable to boot into Ubuntu 15.10

I have Ubuntu 15.10 alongside a Windows 10 OS. My issues has nothing to do with the latter btw (I hope). I had few tutorial videos in the Videos folder in Ubuntu, which I wanted to move to another ...
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2answers
306 views

grub2-install: error: /boot/efi doesn't look like an EFI partition on a fresh Gentoo install

I need a Gentoo 13 machine to test some software on the platform. I'm not a Gentoo regular, so I'm suffering their install procedures. I'm at Configuring the bootloader | Installing GRUB2, and it ...
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1answer
62 views

grub2 and windows in UEFI mode woes

My /etc/grub.d/40_custom reads: menuentry 'Windows 10' { set root='(hd0,1)' chainloader +1 } Yet when I try to boot windows 10, I get an error stating that the path to EFI is wrong. The ...
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2answers
370 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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58 views

Unable to boot after kernel upgrade

My PC triple boot Windows 10, Ubuntu 15.10 and Kali 2016.1. It boots from Ubuntu Grub. Everything worked fine until yesterday. Yesterday Kali released version 4.4 of the kernel and I installed it. ...
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48 views

GRUB2, how to automatically boot Debian?

About 1.5 year ago I got myself a new Acer laptop that came with Windows. The first thing I did was a complete format and install Ubuntu, I think it was version 14. Trying to manage Python versions I ...
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18 views

Grub2 boot unpacked Windows iso from usb

I'd like to boot unpacked Windows 7 iso from usb. What I have: 16 GB usb with ext2 and fat32 partitions (both about 5 GB). Grub2 installed on usb, which loads pure iso images from ext2 partition ...
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4answers
7k views

How do I recover the MBR on a Thinkpad t420?

After a messy Linux upgrade of my dual boot Lenovo T420 I ended up with GRUB replacing my MBR. Everything works fine: I can boot both Linux and Windows; the only thing different from before is that ...
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1answer
29 views

Installed Ubuntu on a USB and got some unwanted results

So, I wanted to install Ubuntu on a simple usb drive but it also installed grub2 on my system (which I didn't want) and now all hells broke loose. Apparently, it set the USB as dev/sda and my default ...
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2answers
72 views

Unable to install Grub manually

I sent as unable to install Grub It says that cannot find efi directory Please refer the image for error details I am installing it from live Kali linux
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42 views

Error installing grub during Kali Linux Installation

I was unable to install grub during the KaliLinux Installation It is showing the error grub-install dummy failed. This is a fatal error See image below:
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1answer
67 views

Linux in external Hard Drive

I installed linux on a external hard drive but when the external hard drive is unplugged I cannot access windows(kind of grub appers, but grub is in the external hard drive), only if I put the ...
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1answer
146 views

Grub2 EFI falls to Grub Shell unless I hit F12 immediately after power on

I have Opensuse Tumbleweed together with Windows 10 on my Asus ROG laptop. The issue is quite weird - every time I power on or reboot, Grub2 EFI falls to grub2 shell and randomly it doesn't see the ...
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2answers
10k views

Dual boot (Windows 8 + Linux Mint 17) UEFI system boot windows only

I have been working on a dual boot system with windows 8 preinstalled and linux mint 17 for a month or so. After applying an update in linux grub loader does not appear and system only boots windows. ...
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32 views

grub always hides menu and boots to Ubuntu 14.04; must press ESC

No matter what I change in /etc/default/grub or /boot/grub/menu.list, grub always hides the menu, shows a 10 second countdown timer, and then boots to default (Ubuntu 14.04). To access MacOs, I must ...
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92 views

Mactel Fedora 23 - Debugging Slow EFI Boot

I recently installed Fedora 23 on my Macbook4,1 (early 2008 model). After the white screen/apple sound at boot, I see a black screen with an underscore cursor for about 10-15 seconds before the Grub ...
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25 views

“Reboot and select proper Boot device” for the 2nd time

I have been using Ubuntu 12.04 and Windows 7 for quite some time now. A few weeks back I got the error message below, but surprisingly I was able to boot again after few days. Yesterday it crashed ...
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32 views

Cannot find root device when loading a new kernel image

I am trying to install an old linux kernel image 2.6.32.69 just for learning purposes. The machine is ubuntu 15.10 32 bit. The commands to build kernel are: make oldconfig make bzImage make modules ...
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1answer
21 views

Windows 8 removes grub2 as default bootloader

I have a dualboot setup where I keep Linux distros in separated partitions on one SSD, and my Windows drive on another. Recently, I had to wipe my Windows drive and reinstall Windows, which was great ...
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35 views

Vista Recovery Partition ERROR Cannot open C:\RECOVERY.DAT

until my last installation of Windows Vista (from the Recovery Partition) and Ubuntu, I was able to boot the Windows Vista recovery partition from the GRUB menu, simply clicking on the corresponding ...
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1answer
57 views

UEFI mixup with previous windows 10 disk on Lenovo

Intro I am asking the same question as I asked on askUbuntu (but did not get feedback). References: http://askubuntu.com/questions/714839/uefi-mixup-with-previous-windows-10-disk-on-lenovo Question ...
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0answers
956 views

Windows 10 ISO in Grub2 Multiboot

I'm attempting to create a multipurpose AIO USB stick for everyday use. So far I've been able to get Mint, Tails, And Hiren's boot cd all successfully working off of one device similar to the tutorial ...
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2answers
2k views

How do I recreate a wiped /boot filesystem in Ubuntu

I accidentally overwrote the /boot filesystem on a running Ubuntu host where the root fs and swap are LVs, and the kernel, initramfs, etc. are under /boot with grub modules and config under ...
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14 views

Install Linux Kernel without APT

I recently tried to install Debian, however apparently the small USB installation over network has a bug where it can't complete installation of the Kernel. Thus I see the grub shell when I boot. I ...
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1answer
89 views

Can't configure a dual boot in Lenovo G40-80

Hey guys I'm trying to make a dual boot in my lenovo, but I can't make grub works at all! I already tried to use boot-repair three times with no success, all the times the grub start with a simple ...
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1answer
115 views

Manually adding windows 7 to the grub boot menu

This seems like it should be simple, but I've spent two hours following all the advice I could find to no avail. I have windows 7 installed on one internal harddrive (sdb) and I have just installed ...
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1answer
706 views

How to make grub2 boot another drive MBR?

My laptop (DELL Vostro 3350) have two hard drives: 1- /dev/sda , ssd with Ubuntu14.04 , grub2 installed to this MBR. Installed on normaly hd bay 2- /dev/sdb , stock hd (with recovery partition etc ...
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2answers
52 views

GRUB boot error rescue

Recently created a Linux/windows 10 dual boot and something went wrong.... every time i boot up my PC it brings me straight to GRUB rescue and i am unable to type or access the BIOS menu (i have tried ...
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2answers
76 views

Problems with Grub - Ubuntu error while installing alongside Windows

I tried installing Ubuntu alongside Windows. I did this using a bootable USB with Ubuntu LTS and using the "install alongside Windows" option. Unfortunately there was FATAL error and now when I boot ...
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69 views

Grub2 support for ZFS

I have installed PCBSD on my machine with Ubuntu on it with the intension of dual booting. However, the grub install during the installation fails. I would like to set up a custom grub script to load ...
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0answers
29 views

grub2 on my embedded Board Corrupted, entered into grub rescue mode

I am working on a Intel board with CentOS running on it. My grub2 got corrupted. and entering into grub rescue mode Problem - whenever I reboot the device. grub rescue contains below info, when I ...
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1answer
54 views

Places or books to start learning PXE booting [closed]

I am currently playing around with PXE booting and PXELINUX/SYSLINUX. I have tried LTSP , thinmachine, FOG project and some others. Currently I am trying to understand how PXELINUX is working under ...
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37 views

Where to find docs about multiboot2 cmd in grub2?

GNU docs almost nothing about multiboot2 command (although I could find linux, boot commands in the 14.3 The list of command-line and menu entry commands section), and enter link description here ...
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174 views

Grub2 error after installing Elementary OS Freya on Dell laptop

I am using Windows 10 on Dell Inspiron 15 (laptop). I downloaded OS Freya (Latest Stable Version) Probably 3rd version and created a bootable USB using Rufus. I made 100 GB space free on my HDD, ...
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446 views

(sda) Assuming drive cache: write through hang on boot

I just install CentOS 7 on VMware EXSi 6.0 with encryption. and after the configuration and boot i got it hang with message: [sda] Assuming drive cache: write through I did search on Internet and ...
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76 views

ASUS logo and GRUB not showing up on PC boot

When I start the PC monitor, it goes into power saving mode resulting in the ASUS logo not showing up. Even the GRUB GUI, which I use to select between Windows 8.1 and Ubuntu 14.04, isn't showing up ...
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90 views

Debian Jessie with dmraid

So I'm having issues, I have the following... Windows 8.1 on RAID0 SSD 2 3TB WD Reds NTFS Formatted 2x WD Raptors RAID0 I want to install Debian on the 2x WD Raptors on the INTEL Raid. I can do this ...
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34 views

How to boot to USB using grub

My computer currently boots to grub2 at the moment. I have an Ubuntu iso installation on my USB. How can I make grub boot to my USB? The way I'm used to doing it is like so: When on Windows 8.1 ...