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

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What is the difference between Windows UEFI bootmgfw.efi and Windows UEFI bkpbootx64.efi?

My computer screen while starting computer Also help me by explaining why windows UEFI loader was first taking me to windows but now is redirecting back to this window.
3
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1answer
21 views

Set up dual boot Debian (Mint LMDE) Linux + Windows 8.1 **without** efi

The specifics is that in my case Windows 8.1 is installed not in EFI mode: so the partition table is in msdos/fat format and there is no efi partition. Unfortunately: All how-tos and manuals I've ...
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1answer
12 views

Booting a Linux Live tool from FreeBSD UFS2 partition

I would like to boot a Live Linux CD, without needing the CD. Take for example GParted or CloneZilla. Which I periodically boot off their Live CD. But I would like to eliminate the use of the CD/DVD ...
3
votes
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
20 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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0answers
19 views

Windows 10 causes GRUB “TPM error 2”

I had a dualboot on my laptop: Windows 8 + Fedora 23. Recently I've re-installed Windows and immediately upgrade it to version 10. Then GRUB 2 bootloader was restored using Fedora Live USB stick: # ...
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1answer
40 views

What could be causing Windows updates to fail?

I have a multi-boot system with Ubuntu 16.04 and two copies of Windows 10. The partition layout is as follows: /dev/sda1, file system = ext4, size = 30.52 GiB, label = Ubuntu 16.04 /dev/sda2, file ...
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0answers
7 views

Cutting strings in GRUB2 shell

Is it possible to cut strings in GRUB2's shell like I can in bash? Let's say I have a variable str that is set to This is a test.. How can I extract a substring from it? Things like ${str:2} don't ...
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0answers
20 views

What do I need to boot Windows 10 from a usb drive on grub2?

I am trying to install Windows 10 on my Dell XPS 13. I installed the ubuntu 16 I have running now from a bootable usb, but I have not succeeded with windows 10. I got the .iso from microsoft: ...
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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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5answers
2k views

From GRUB2, boot an ISO in an LVM2 logical volume

tl;dr - Is it possible to boot from a .iso file that is located in an unencrypted lmv2 logical volume? How? I'm trying to set this up in a VirtualBox VM before I do it for real with my laptop. I have ...
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1answer
51 views

Can't 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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votes
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.) ...
0
votes
1answer
53 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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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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0answers
35 views

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
16 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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0answers
67 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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0answers
45 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 ...
0
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0answers
37 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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0answers
47 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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2answers
539 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
83 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
399 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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0answers
60 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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0answers
60 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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0answers
24 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 ...
0
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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
75 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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0answers
51 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
70 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
173 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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0answers
34 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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0answers
100 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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0answers
26 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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0answers
34 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 ...
1
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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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0answers
38 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
58 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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votes
0answers
1k 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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0answers
16 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 ...
0
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1answer
104 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 ...
0
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1answer
134 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 ...
0
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1answer
729 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
54 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
87 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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0answers
72 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 ...