GRUB (GRand Unified Bootloader) is a multiboot bootloader from the GNU project. This tag is for questions relating to the legacy version of GRUB. Use the GRUB2 tag for questions dealing with GRUB2, a rewritten version.

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PC won't boot from flash drive after computer hibernated (grub on hdd corrupt too)

I had 3 OS installed: Windows 7 , Fedora 17 and Mageia 2 in my Acer Aspire 4253 laptop. I deleted the partition of Mageia and my grub got corrupted. I didn't have an installation DVD of either Win7 ...
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388 views

Making grub boot into chroot directory

I am trying to make grub boot into a chroot directory /slack containing a Slackware Linux installation. This directory was created by issuing the following command: installpkg --root /slack a/*.t?z ...
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270 views

Stuck on GRUB command prompt after regular kernel update

I am running Debian Wheezy. Update Manager suggest to install kernel update. After update, I reboot system but instead of listing all the kernels (bootloader), it gave me a GRUB command prompt: ...
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307 views

Stuck at GRUB prompt after booting, how can I restore normal booting?

My machine was dual-booting with Windows XP and Fedora, then I tried to install Arch. While installation power went off. After that, booting always results in the GRUB prompt. Even when I instruct my ...
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0answers
192 views

PC reboots after “Welcome to Grub” unless booted from BIOS

I have a Linux machine running on an ASUS P8H77-I. The boot drive is correctly set in the BIOS. If I let it boot normally, I see the Welcome to Grub line, then it reboots, and repeats forever. If I ...
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132 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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244 views

Dual Boot with Windows: Enable numlock

After I installed Ubuntu along with Windows, in both OS's I had to manually enable numlock (despite having enabled a setting for this in the BIOS I believe). Is there a way to enable numlock?
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492 views

Having problems with booting GRUB for EFI on USB stick

Whatever I do, it constantly drops me into the 'bash prompt'. Never displays a menu, nothing. I'm running GRUB on a USB stick formatted as msdos (so, FAT) and when I boot into it, GRUB simply won't ...
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5k 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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522 views

CentOS Freezes on Startup

I'm very new to Linux, so please go easy! I created a Linux install on VMWare Workstation 8 in order to install a piece of software called OpenClinica. The program is Java based and depends on ...
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65 views

Computer stopped booting after I tried to allocate a drive to unallocated space

I installed Ubuntu on my Windows 7 yesterday and after that I booted to Windows. After that as I saw an unallocated space while installing Ubuntu, I tried to allocate that unallocated space to make it ...
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125 views

Possible HDD malfunction. Need help in diagnosing

Today when using my PC as I did for almost 4 years I experienced the following: during opening new tab in Opera browser screen froze. Music (AIMP 3) continued to play for about 5 minutes and then ...
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457 views

GRUB will not work

I am having trouble with my hard disk. Previously, I had a working Linux Mint Debian Edition partition and a Windows XP partition, all working and bootable through GRUB. However, I decided to replace ...
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974 views

Grub: Legacy 'ask' parameter no longer supported

I'm trying to change the resolution on my base shell (the Ctrl+Alt+1) shell in Debian so that it supports my ViewSonic monitor. The shell appears really fuzzy when it is displayed on my lcd monitor, ...
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416 views

Use GRUB/GRUB2 to PXE boot OS image

Here is the situation I am in: I currently have a Windows drive that boots XP. The BIOS does not support PXE booting so this is out of the question. Therefore, I was thinking I could install a ...
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241 views

Error re-installing grub: windows partition corrupted?

I am a Linux newbie, had Windows XP and Ubuntu installed (9.10/ grub2) and working perfectly. I had to re-install Windows XP and thus I followed the official tutorial to reinstall grub2 (and run ...
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34 views

How do I restore my Windows 8 partition to be able to boot after issues with LVM?

While installing Linux Mint 17, I have messed up with some option like LVM. And after that I lost my Windows 8 installation and everything on the disk. I managed restore the lost partitions using ...
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44 views

Windows 7 changes my uefi default boot when it starts

I installed Windows 7 in a HP Compaq 6300. First I disabled secure boot and enabled legacy mode. Then I installed Ubuntu in other partition. Ubuntu detected some uefi partitions and let me create / ...
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27 views

Dualboot Ubuntu Server and Centos. Grub installed in the Ubuntu partition. How do i edit the configuration files from Centos or run grub commands?

As the topic says. I'm running both Ubuntu Server and Centos. Grub is installed to the Ubuntu Server install (/dev/sda). I want to run some grub commands to edit its configuration files, more ...
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17 views

Safe to blank MBR of a disk after adding it to an RAID1 array with mdadm?

I created a RAID1 array of two disks, /dev/sda and /dev/sdb, using mdadm. After several booting problems related to the BIOS and SATA/RAID controller of the board, I accidently created some new ...
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48 views

my grub is not show my win 8 along with kali linux

i install kali in my windows 8 PC but it don't show my windows in my grub I tried to update the grub but it don't work and neither it shows grub2
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83 views

Restoring Windows boot entry on GRUB

I made a lot of mistakes lately with my systems, and now I have an issue. After installing fedora 20, I tried to resize my windows 7 partition, and generated an error with the actual size of the ...
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21 views

Windows entry in grub menu

I've installed encrypted windows/linux dual-boot. After installing aplication "startupmanager" from debian repo, the grub menu was modificated and windows entry dissappeared. As the windows is ...
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26 views

Unable to do fresh Linux install from CD

I am using Windows 8 OS on my laptop and I had installed CentOS linux earlier. The BIOS is set for UEFI mode, thats why I had to switch it to legacy mode to support boot from CD. Anyways, I managed ...
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321 views

Can't boot Windows 8, can't boot from USB installer

I'm having all sorts of problems with my PC. It's custom-built so I didn't expect to have UEFI/Secure Boot compatibility issues but I think that's what's happening. I have a Windows 8 Pro ...
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49 views

How do I get the grub menu to list both my Windows 7 installations?

I have the following disk configuration: Disk /dev/sda: 750.2 GB, 750156374016 bytes 255 heads, 63 sectors/track, 91201 cylinders, total 1465149168 sectors Units = sectors of 1 * 512 = 512 bytes ...
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237 views

Is 3200x1800 resolution possible in Hyper-V?

I've got a Lenovo Yoga 2 Pro (Windows 8.1), which has a screen resolution of 3200x1800. I'm trying to run Ubuntu 14.04 in Hyper-V at full screen on it. I've tried the steps listed here, but I can only ...
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397 views

Unable to access UEFI settings on Lenovo

I have a Lenovo G580 on which I installed Windows 8 and several Linux distros which have messed with my booting. The last I used was boot-repair tool. I have an EFI partition on sda2. The Grub load ...
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25 views

Prevent chainloading by grub after Efit

I triple booted my Macbook 4,1 with Mac OSX 10.5.8, Lubuntu 14.04 and Windows XP SP3 and installed rEFInd as my bootloader. Now what basically happens is, first the Mac bootloader loads invisibly, but ...
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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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634 views

Can I change a ubuntu partition from sdb to sda?

I have just gotten into Ubuntu and I'm not quite familiar with partitions etc. But I have Ubuntu installed on /dev/sdb. But I want to move it to /dev/sda. Current partition listing below. Can I just ...
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105 views

GRUB unknown filesystem error after managing Windows 7 partitions

I'm using Debian and Windows 7 located on one HDD, in dual boot. Windows 7 had two partitions (system partition C: and general-use partition G:). Recently I've cut the G partition in size and created ...
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37 views

How to change the partition which MBR points to?

I can not boot my computer, so I use Ubuntu 12.04 Live CD instead. I change the partition of boot loader from sda9 to sda8, so the MBR cannot point to the correct loader. How could I do now? How to ...
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62 views

Razer Anansi doesn't work in GNU GRUB 2

My new Razer Anansi keyboard does not function in the GNU GRUB version 2.00-19ubuntu2 bootloader that's running on my machine. The backlights do not turn on, and the keyboard is unresponsive. This ...
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464 views

Dualboot Fedora 20 + Windows 8 on separate drives

Well hello there, I have a little problem with my dualboot setup. So I decided to dualboot Windows (for gaming-puposes) and Fedora (for everything else), and I also decided to give them separate ...
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126 views

multi-booting Linux distros in the same partition

When I install a linux distribution, I allot the disk space to be used during the installation. I could only use up to the allotment. When I am running out of disk space I have to manually shrink one ...
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34 views

Repair Windows 8 Bootloader within Ubuntu

I was trying to boot Ubuntu from the Windows bootloader using EasyBCD, but it ended up removing Windows from the menu. I ended up reinstalling Ubuntu and now I have Grub with Windows 8 as an option. ...
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305 views

Dual Booting Kali Linux with Windows 7. Atheros Killer E2200 not found + 2 different HDD

I'm having trouble installing Kali on a MSI GE70 2OE with a SSD HD and a standard SATA HD. I've installed W7 on the SSD, and then partitioned my SATA in two parts: One 800Gb for W7 and another 200Gb ...
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48 views

Grup graphics lag

I've just set up Ubuntu 13.10 on a new laptop. It's a thinkpad T540p and grub is having some really strange problems. After the bios flash screen grup starts to load. The screen goes black and the ...
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268 views

Can't boot in windows 8 after installing lubuntu and running boot-repair

I installed lubuntu to a flash drive on my windows machine. Because the boot manager wouldn't find the usb I ran boot-repair. Now Grub can't find Windows 8. To make matters worse I can't mount my hard ...
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73 views

How can I set … Windows 8 & Ubuntu 12.04(LTS) Dual Boot: Windows 8 as default OS

I recently installed Ubuntu 12.04 (LTS) on my laptop with Windows 8 already installed. The installation was successfull and I get to use Ubuntu alongside Windows 8. When i start Windows 8 it shows the ...
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2k views

How to remove Grub Rescue?

Okay, before you flag this as duplicate, let me explain my exact situation. I had Win 7 installed on HDD1. I then installed Ubuntu on HDD2 as dual boat using unetbootin. Then, I installed a fresh ...
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100 views

GRUB restarts on GRUB Loading

I have installed ArchLinux and I want to boot from SSD. My partitions (in /etc/fstab): /dev/sdb3 - mounted as / /dev/sda1 - mounted as /boot [bios_grub on] /dev/sda2 - mounted as /etc /dev/sda3 - ...
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0answers
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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549 views

How to dual boot RHEL 6 and Windows 8?

The Situation: I have an ASUS Notebook with Windows 8 preinstalled, i created a new partition and installed RHEL 6 to that partition, but the computer keeps booting into Windows 8 without going into ...
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505 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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47 views

Debian boot not recognizing Windows

I have a Dell Optiplex that has a small first partition that has Dell tools on it. My Windows XP is on the second partition. I installed Debian squeeze 6.07, and now I am not able to see Windows on ...
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68 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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142 views

How to setup grub.conf for a newly compiled kernel

I installed MPLS on linux 2.6.15 using the instructions here: http://www.sj.ifsc.edu.br/~msobral/RCO2/docs/mpls-linux/1-3-installation.html Everything worked but I don't know how to set up grub.conf ...
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161 views

Virtualbox existing (physical) Ubuntu guest clears Windows 7 entry on update-grub, no single solution for both scenarios

I have successfully booted an existing Ubuntu 12.04 physical partition installation under a Windows 7 host, as explained here. I use a grub rescue disk .iso to manually boot the kernel, get to the ...