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

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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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135 views

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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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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398 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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22 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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29 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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219 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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236 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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69 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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57 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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3k 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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561 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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71 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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575 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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236 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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89 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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591 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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292 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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456 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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298 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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811 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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499 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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10 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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8 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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28 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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16 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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55 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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38 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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82 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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438 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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332 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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40 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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99 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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18 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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28 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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136 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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101 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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29 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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14 views

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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59 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 ...
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248 views

Triple boot windows 8.1 ubuntu 14 and kali linux

I currently have ubuntu and windows 8.1 installed. I have the grub 2 bootloader. I just want to know how to get kali linux on my machine too, I am a newbie. Can someone make a video for me or show me ...
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67 views

start debian in vmware ,it goes to a black screen

When i start debian in vmware,and it go to the black screen and i can't even find a place to login,maybe it is because i change the file of grub in /boot/grub/grub.cfg by adding this set ...
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162 views

Grub Installation Failed: Fatal Error … now what I do?

I know there are some threads that touch this but I feel I have done something uniquely stupid. hence the post and plea for help. I am a beginner @ Linux. So I have a PC with a HDD (hard disk ...
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136 views

How to boot from SD Card with GRUB2 being on another device?

I want to install some OS on SD card (i.e. Chromium OS), but my laptop doesn't support booting from SD slot. Thus, I decide to add static entry for my specific SD card to GRUB2 menu. And I can't ...
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119 views

grub2 freedos attach virtual floppy disk

I'm interested in loading freedos under grub2 and attaching a virtual floppy to it The aim being to have a folder on the usbkey containing several tar.gz files (such that it is quick to add a new dos ...
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45 views

Does GRUB2 support dynamic menu entries for removable external storage?

I want to boot my laptop from different kinds of external media, but my BIOS doesn't detect all of them as bootable devices, i.e. SD Cards. I don't want to manually create menu entry each time I ...
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68 views

Dual-Boot Windows XP and Vista Without Windows Boot Manager?

I have been dual-booting FreeBSD (1st partition) and Windows XP (2nd partition) using Grub2 (configured in FreeBSD). I just installed Windows Vista on my hard drive's 3rd partition. To boot Vista I ...
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94 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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190 views

Accidentally deleted GRUB partition in GParted

I deleted the partition responsible for boot loading to the OS. And going forward when I start my PC up it only loops. Is there any link or procedure that can help me recover the partition or ...