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

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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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On a Ubuntu PC graphics became slow and jumpy after making changes with GRUB2

I have a Ubuntu system. All worked well. Then I created a separate dedicated boot partition and got GRUB2 working on that partition. It boots. But my graphics became slow and jumpy. The resolution is ...
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39 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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33 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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1answer
35 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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13 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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7 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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1answer
35 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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6 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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13 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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27 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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80 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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34 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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40 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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21 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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9 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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1answer
451 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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1answer
77 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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41 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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1answer
56 views

Installing newer version of linux over an older version on a windows dual boot laptop?

I have an Asus laptop, with a recovery partition and windows 7 installed. I installed Linux Mint 13 on it, dual-booting it with Win 7. Now I want to remove Linux mint and on the same partition space ...
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2answers
149 views

How to install Grub2 to multi boot two Windows 7 for booting from two different HDDs?

I own a HP DV7 laptop that supports 2 HDDs. I have installed Windows 7 on each HDDs separately, each one with their own bootloaders, who do not communicate with each other. The problem is that when I ...
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178 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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51 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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128 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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149 views

Debian grub bootloader can't find windows 7

I have been using Windows 7 for quite a while on my machine in the following configuration. I have three hard drives, all different sizes, with Windows being installed on the largest. This is also the ...
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83 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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55 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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33 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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50 views

password md5 equivalent in grub2

In the old version of grub, we can prevent the user modifying the boot option in menu.lst with the following line: menu.lst password --md5 <password> In grub2, I tried to add the following ...
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1answer
5k 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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1answer
583 views

I need to install GRUB 2 for Windows 8.1

I have Windows 8.1 32-bit on my PC and I want to install Kali Linux 1.0.8 64-bit or Ubuntu 14.04 64-bit on my PC (my PC can run a 64-bit OS). I need GRUB2 to install the OS to my bootloader but I ...
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1answer
107 views

Grub doesn't see external drive (Intel mac)

I have an Intel Mac (MacMini) and an external usb-drive. On the internal drive, I have a partition with an OSX install, and one with Ubuntu+Grub2. On the external drive, I have a copy of my complete ...
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59 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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10k views

Searching for grub configuration file in CentOS 7

Im searching for grub.conf file in CentOS 7. I cant find it with locate(I called updatedb before). Where does it stores? In older versions of CentOS I could find it.
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1answer
837 views

Error 0xc000007b when trying to start \EFI\ubuntu\shimx64.efi (Ubuntu) through Windows 8.1 Bootmanager on an UEFI System

Error 0xc000007b when trying to start \EFI\ubuntu\shimx64.efi (Ubuntu) through Windows 8.1 Bootmanager on an UEFI System EFI Entries During Ubuntu Setup, Ubuntu automatically created an EFI start ...
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2answers
31 views

Virtual disc, missing bootloader. How to boot?

I had a netbook with HDD partitioned into 3. On one of the partitions (say /dev/sda2) i had an instance of Crunchbang Linux installed. I had backed it up using 'dd' command (dd if=/dev/sda2 ...
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1answer
45 views

How to fix ubuntu boot alongside windows 7

In the beginning I had only Ubuntu on my pc. After I installed Win 7 in another partition. Then Ubuntu boot doesn't starts anymore? I need dual boot: how can I fix it?
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271 views

Dual boot intermittant issue using Ubuntu 14.04 and Windows 7

I have a problem with the grub2 loader sometimes. More often, when I choose Windows 7 in the grub2 loader, it hangs on the purple screen. I have looked up and down the internet for an answer and ...
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77 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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1answer
67 views

Mix of GRUB and GRUB2 (Linux and Solaris)

ALL, I have a DELL laptop on which I installed Linux and Open Solaris (in that order). Linux used GRUB2 and it was OK. Solaris still uses GRUB1 and it looks like it did overwrite the GRUB2 ...
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1answer
293 views

Windows does not boot - black screen with blinking cursor

In /dev/sda1 I restored Windows image with clonezilla (previously working with this hardware). From this time, I can not boot to Windows, black screen with blinking cursor is appeared. Then I ...
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87 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 ...
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208 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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1answer
217 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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31 views

GRUB2 - Allow guest access on certain OSes Installed

I have found a few articles that guide me through configuring GRUB2 on my Ubuntu 12.04LTS box so that it requests a user name and password at boot, so that I can restrict certain items in the OS ...
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1answer
183 views

grub2 boot error: “out of memory”

I just installed a sas/sata3 controller (IBM M1015) and now I am unable to boot the system (grub2 bootloader). The last boot messages I see are: Verifying DMI Pool Data ................. . out of ...
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1answer
214 views

How to enter Advanced Boot Options menu on Windows 7 without bootloader?

I need a way to enter the Advanced Boot Options menu of Windows 7. The computer is dualbooting with Linux, so GRUB2 has taken the place of Windows bootloader. So pressing F8 on boot won't do anything. ...
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1answer
2k views

Unable to boot Windows 8.1 with GRUB, reboots everytime

I have two HD drives, one with Linux Mint Debian Edition, the other with Windows 8.1. I was able to boot both of them using GRUB, with no problems. Yesterday I tried to boot Windows after almost 3 ...
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1answer
970 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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68 views

How to remove Windows 8 bootloader (or arrange for Grub not to detect it)

I have a dual-boot system with Windows 8 and Linux. I have two Windows partitions: one 64-bit and one 32-bit. The 64-bit partition is the one I wish to boot; the 32-bit partition is there as a ...