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

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Windows 7 not showing on Grub 2 list

I have Linux Mint and Windows 7 installed on two separate drives. I have bounced between the two all day (initially trying to get mint to show in the windows boot list, and now working on getting ...
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926 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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33 views

Does GRUB actually install an MBR?

I’m wondering if I need to use some other utility to actually write the MBR to disk, or if GRUB writes an actual MBR to disk? The wording in the GRUB2 documentation is not entirely clear on the ...
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145 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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5k views

How do you boot Arch Linux with systemd without X11?

Ran an upgrade recently that borked my whole setup(with catalyst drivers). It caused artifacts at login/desktop and then a hard lock. However, I'm not asking about those problems, what I want to ...
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6k views

How do I replace GRUB with the Windows 8 bootloader without losing access to Linux?

I dual-boot Windows 8 and Crunchbang Linux. I installed Windows first, then Linux. GRUB was installed directly in the MBR. However, now I suspect that GRUB is the reason why I can't use bcdedit on ...
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450 views

Recover partitions with both Windows 7 and Linux installed using TestDisk

I need to recover my partitions using TestDisk. I used deep search and the result is as follows: Disk /dev/sdc - 500 GB / 465 GiB - CHS 60801 255 63 Partition Start End ...
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558 views

How can I set the menu font in GRUB 2?

I've just been forcibly upgraded to Grub 2, and I'm having trouble because the fonts in the GRUB menu are ugly and small. I have successfully set the screen resolution with GRUB_GFXMODE=1920x1200x32 ...
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57 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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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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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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218 views

Execute setpci at boot

I'm using grub to execute two setpci commands when starting Arch on my MBA. These commands solve "startx black screen" issue for me: setpci -s "00:17.0" 3e.b=8 setpci -s "02:00.0" 04.b=7 Now I want ...
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162 views

Computer won't boot into any OS

The title may seem vague, but I've tried so many things that I'm not even sure what to label the issue as. I got a new PC so stored my old PC parts away. I then got a new case so thought I'd put ...
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139 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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56 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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567 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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92 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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452 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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31 views

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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173 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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136 views

Windows resolution only up to 1024x768 after installing OpenSuse

I installed OpenSuse 13.1 in a 5yo laptop I had around with Windows 7. It was working fine with 1280x900. OpenSuse cannot go further than 1024x768, but what is really surprising, is that Windows 7 ...
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246 views

Ubuntu - Booting black screen with purple border

I have a problem when I boot the pc. After the installation of Ubuntu, a black screen with a purple box appears without letting me see the choices of GRUB. The screen then becomes black and Ubuntu ...
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326 views

hd0 out of disk, grub rescue> when botting up off a USB drive ONLY with HP EliteBook

I have Ubuntu 12.04 installed on a bootable USB drive. It works well with 2 laptops (meaning, laptops boot successfully off the USB drive). However, when I connect the USB drive to a HP EliteBook ...
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94 views

GRUB2 insert additional modules

GRUB2 doesn't have the menu.lst file. How do I configure a boot script. During boot, I hit E on the kernel image that I want to modify and make my modifications. But I would prefer to make the ...
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1k views

GRUB2 booting: efidisk read error & prefix is not set

everyone! I have a booting USB stick with some iso-image, based on Arch Linux. It loads through efi and then comes to Grub 1.99, where I can choose the iso images. I can load them without any ...
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59 views

grub2 with serial backup

I just setup a headless server. I would like to administrate this via serial, but I won't always have a serial connection plugged in. If I configure GRUB_TERMINAL="console serial", grub2 will not ...
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686 views

GRUB reported “error: file not found.” when booting CentOS 5

I installed CentOS 5.3 by using a 4GB USB disk on an old PC that I used run a Debian on it. After a series of housework on the fresh system, I reboot the system using: sudo shutdown -r now After ...
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78 views

Can I tell GRUB to boot into a Windows OS that exists as a virtual disk on a Linux system?

I know that GRUB (and GRUB2) can chainload a Windows OS if you specify the hdd that it is contained on. Is it possible to tell GRUB (or GRUB2) to boot into a dd image-file of a Windows OS that is ...
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776 views

Slax on NTFS (GRUB) with Changes Saved Natively

I have Slax 7 and Windows XP running on the same (ntfs) partition - woohoo! I still have a few issues, holes in my understanding: Slax apparently saves all "changes" to a single file ...
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317 views

How can I chainload a USB drive from GRUB2?

I'm using GNU GRUB version 1.99-12ubuntu5, booted over the network using PXE. I used grub-mknetdir to generate the GRUB image and directory tree, which I'm serving on a TFTP server using Tftpd32 in ...
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110 views

Grub 2, switch os when restarting

I dual-boot with Windows and Ubuntu. Usually, when I restart my computer, it is to switch os. Is there a way to tell it to Grub so that it preselects the right os in its menu when I restart my ...
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694 views

Arch linux - strange behaviour after installing fglrx

I have a problem with drivers on arch linux. I installed catalyst through unnoficial catalyst repo as wiki says. pacman -S catalyst catalyst-utils aticonfig --initial After this operation i ...
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368 views

How to remove redundant grub from a GPT hard drive?

I once installed Debian onto my hard drive with GPT so there is a grub on it. Recently I erased Debian and install Windows Server 2012. But the grub is still there (which can launch nothing and I am ...
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511 views

Windows recovery partition with GRUB2

So I recently got a new Toshiba laptop and installed Ubuntu 12.04 on it. Since it is a "Windows 7 Enabled" machine or some other proprietary nonsense like that, a few hardware features are designed ...
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302 views

grub2 multiboot philosophy

Since using grub 2 I am puzzled by the way the boot menu is created. I usually have some extra installations on different disks or partitions. When doing a os-prober and grub-update my menu will ...
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869 views

GRUB2 rescue boot into windows

I had got 2 partitions on my harddrive: 1. win7; 2. Ubuntu 11.10; As it can be predicted the GRUB loader was in the second partition and this partition was formated from ext4 to ntfs. Now I get this ...
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22 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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11 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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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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28 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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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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17 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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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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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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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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30 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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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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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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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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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 ...