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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How to install GRUB command-line tools on OSX?

I need access to grub-mkrescue for a project I'm working on. I know that the GRUB command-line tools come builtin to Linux, but how do I get them on OSX? Is there a package? Is it built into the ...
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BSOD, MBR corrupt, tried to fix using Testdisk on Linux dual boot, now nothing works

The short story is I received a BSOD from a Windows program. I then couldn't boot Windows. My system is set up with GRUB to dual boot into CentOS, so I booted into CentOS and attempted to fix the MBR ...
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348 views

Triple booting on a Mac Book [almost there]; boot loader issues

Here is my current GPT/MBR partition table: Current GPT partition table: # Start LBA End LBA Type 1 40 409639 EFI System (FAT) 2 409640 663646255 Mac OS X ...
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483 views

How can I write a Windows (NTFS) .img file to a partition and add it to grub?

I'm trying some crazy stuff here. First, I had a VirtualBox machine with Windows XP installed, using .vdi format. Then I exported the image to a OVA, extracted the .vmdk and converted it to a raw .img ...
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494 views

How to add an item GRUB 1.98?

I am having trouble with GRUB version 1.98. I have been using GRUB 0.97 for a long time and can do pretty much what I want with it. It appears that the last version of Debian (6.0) installs GRUB ...
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how to enter into my win7 from rescue mode?

I have installed dual os :win7+debian7 on my pc.In the grub.cfg: menuentry "Windows 7 (loader) (on /dev/sda1)" --class windows --class os { insmod part_msdos insmod ntfs set root='(hd0,msdos1)' ...
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27 views

Can't boot into windows or CD

This is my third reinstall of Debian, this time because I wanted to update from wheezy to Jessie, but it wouldn't run anymore so I switched back to windows and deleted the Debian partition and ...
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2k views

Can't access BIOS and can't boot from USB when HDD is plugged in

I have a Samsung Ultrabook series 5 notebook (NP530U3C), and recently I've been tinkering with Linux distros. I've had a dualboot setup with Windows 8 and Linux on this computer before, and all went ...
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229 views

Linux Mint 16 32-bit (Ubuntu) forgets password, even after resetting via grub/bash trick

I just installed LM16 using a live USB stick. Install went fine, and at the user step I made a password but chose 'log in automatically'. On first boot without the usb stick, it logged in without ...
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232 views

Keyboard issues with GRUB upon cold boot

I am facing a very weird issue with my keyboard while using GRUB. I'm going to be as detailed as possible and outline all the methods I've tried to fix this issue. Let me first describe the issue ...
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OS grub page not Loading

My laptop was working fine, with Windows 7 and Ubuntu 12.04, when suddenly the grub page stopped loading. Whenever I switch on the laptop, I get the company's name (Asus in this case), with the Intel ...
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Cloning Linux and Windows from two separate disks to a single SSD

Backstory TL;DR: cloned OpenSUSE from /dev/sda2 to /dev/sdc1, Windows 7 from /dev/sdb1 to /dev/sdc2; formatted /dev/sda2 and /dev/sdb1; reconfigured GRUB2 and installed it on /dev/sdc; OpenSUSE loads, ...
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Dual Boot: Windows Vista - Linux Mint. Delete Partition , fix MBR

Scenario: Windows Vista Basic installed on Hard Disk Created a partition (after Windows Partition - i.e Windows is in the 1st Partition) Installed Linux Mint Cinnamon 64-bit (UP6) on new partition ...
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Dual Boot Centos 6.5 and windows 7 using USB Stick

I was trying to dual boot my system with Centos 6.5 and Win7 using usb stick. Win7 was already installed. I created a partition of 100G from Win7 for CentOS 6.5. I created a bootable disk using ...
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After Ubuntu installation Windows 8 cannot be loaded from GRUB menu

After 3 weeks of trying, today I installed Ubuntu 13.10 in my system. My system was already running on Windows 8 Pro. I installed Ubuntu by manually selecting a drive. The installation was ...
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How to copy GRUB from a 64-bit system to USB drive usable for a 32-bit system?

In order to have GRUB on USB drive, we have to clone it from somewhere it is installed. I need a USB drive with Linux (Ubuntu) in order to repair a 32-bit system. I have a 64-bit system where I will ...
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215 views

Grub Network Boot, where do system files go?

I have made a folder structure for network boot using PXE and Grub with the command grub-mknetdir. I have put those files in a valid served tftp folder on Server Machine. I have put a valid kernel ...
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145 views

Does my computer fail to boot because I removed RAM?

I have a dual-boot (Windows 7 64-bit and Linux) system. A couple weeks ago I doubled my RAM from 4GB to 8GB. However, the new RAM was causing all sorts of boot problems with both Windows and Linux, so ...
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grub error: file not found

I reboot my debian server and now grub is telling me this: error: file not found. Entering rescue mode... grub rescuse> ls will show this: (hd0) (hd0,msdos2) (hd0,msdos1) Now i'm executing ...
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502 views

Clonezilla breaks grub2 in fedora

I have Clonezilla (version 3.5.2-drbl1) packed with DRBL on my Ubuntu server. The image that I'm trying to deploy is a Windows 7 / Fedora 17 dual-booted image that uses Grub2 as a bootloader. Saving ...
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580 views

How do I fix dual boot startup for Ubuntu installation on Windows 8 Laptop

I have a Lenovo laptop with preinstalled windows 8 64bit- I did an installation of Ubuntu 13.04 - however after installation I was faced with the GRUB loader. From the Grub loader if I try to start up ...
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UEFI boot Issues on Asus G750 and LiveUSB

I'm having an issue getting Mint 13 LTS to boot on my new machine. I switched off SecureBoot, CSM and Fastboot. After this I Used USB Installer that comes built into Mint, it ends up with a ...
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540 views

Why did my machine stop booting?

All of a sudden when I turned on my Linux Mint 14 machine I got the following message: error: attempt to read or write outside of disk 'hd0' ...and a grub rescue prompt. I ran the Boot-Repair tool ...
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304 views

Disabling Windows Boot Manager And Using Grub2

All, I'm in a wierd situation, I would like to use grub2 to boot my Ubuntu, Windows 7 (old) and Windows 7 (new). I purchased an SSD and installed Windows on it. My old Window installation still ...
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167 views

UEFI ASUS system will not bring up grub menu nor boot F19

Just loaded the Fedora Live Games F19 to a hard drive on an ASUS UEFI system. It won't get to GRUB. I forgot to write the error message, but something about it not being bootable. I can follow up ...
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130 views

Deleted Ubuntu Partition, Forgot to Restore MBR, BIOS Supervisor Password

So, I have gotten into this madness. I deleted my notebook ubuntu partition, wanted to delete the ubuntu. But alas, I forgot to restore the MBR. Well, no biggie if I can access live usb ubuntu ...
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Recover Windows EFI Boot Manager after Grub install

I had Windows 8 installed, and tried to install Xubuntu in another HDD on my desktop. After installation, I could only boot into Xubuntu, and never got into the OS selection menu in GRUB. So I ran ...
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825 views

Windows 7 cannot get C/H/S values

Alright, so I'm a bit of a novice at this kind of stuff, but I had a CD version of Solaris and decided to install it on the disk it came on. I put it into my Windows 7 computer and did all that stuff ...
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802 views

how to dual boot Redhat and ubuntu on using different partitions

I want to dual boot my laptop using RedHat and Ubuntu in different partitions. My hardisk contains the following partitions: /boot ==> redhat boot partition 300MB /SWAP ===> 8GB / ===> ...
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Attempted downgrade from GRUB2 to GRUB; can't boot into ubuntu anymore

So I just did a clean install of windows 7 ultimate and installed ubuntu 12.10 beside it. I kept the windows bootloader in the mbr at the advice if my tutorial (i used easyBCD to enable an option for ...
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GRUB not loading

I just installed Fedora 18 alongside a pre-existing windows 7 from a live-usb to a single 1TB hard disk with multiple partitions. created all necessary partitions as recommended: / :40GB /boot ...
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177 views

How to recover a bootloader after installing ram?

After a wonderful fiasco trying to figure out what caused the bluescreens in my PC, it turned out that it was a bad stick of ram. I figured I'll just get two brand new 4 GB kits - all together 8 GB, ...
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279 views

Why can't I install grub on /dev/sda3?

I've installed to hard drive using 50% of HD. So Windows has 2 partitions. Then I manually made 2 partitions for ubuntu: #3 primary /boot ext4 #5 crypted section with volumegroup for root and swap ...
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162 views

Misused mke2fs and cannot boot into system

I installed ubuntu with wubi in windows7 64bit, and I had installed Mandriva 2011 with a disk. I tried to learn linux with Ubuntu and misused mke2fs; after I reboot my computer, windows7 and ubuntu ...
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115 views

GRUB default boot editing

I have a box with Ubuntu, FreeBSD and Win32. The default boot preference is Ubuntu. How can I change that option to be FreeBSD(or Win)? Can the boot selection time frame (currently of 10 seconds) be ...
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132 views

Windows 7/Ubunutu dual boot

I recently attempted a dual boot of Windows 7 and Ubuntu on a Sony Vaio. The installation for Ubuntu went well, but Windows 7 would not load from the Grub menu. I ran the auto repair from the ...
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266 views

Rhel 6 does not boot

out of a sudden my rhel6 has issue when booting. It stuck at where the bottom loading bar finished loading. Dont know what you call that page as... Ive tried booting into single user mode but what can ...
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257 views

Triple boot with windows 8, windows 7 and ubuntu

I tried to install windows 8 to an new hdd, but after installation i cant boot it with grub.I configured grub with sudo update-grub, it added the Windows 8 to the menu (which is instaled to sdb) but ...
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430 views

windows crashing after installing fedora 16

I have HP dv6 pavilion. I installed fedora 16 in it along with windows. I installed fedora on a separate partition. After installation I booted to windows, but it crashed. It shows a "starting windows ...
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Finishing up and Arch Linux install and Grub is failing to install

Not sure what to do at this point. I finished all of the Arch Linux installer and get to the bootloader step and it fails. This is for a dual booted Windows 7/Arch laptop if that helps at all. Not ...
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Linux can't boot without acpi=off on Thinkpad

I recently installed Linux Mint 12 - the Gnome version - on a new Lenovo Thinkpad L520 for a friend. It's running kernel 3.0.0-12- generic. When I booted - either into the live CD, or into the ...
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517 views

linux mint is not starting. grub issues?

I dual booted my xp installing mint, everything went well, i gave the cd to my friend and he installed linux mint 12 but it's not starting, i mean there's no menu where you choose what OS you want to ...
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640 views

Booting an EXT4 image file from GRUB2

My friend needed a fast HDD so I gave her my small 64GB SDD. This SSD had my Linux install on it. I used dd to make an image of the partition (boot, root and home on one partition). This partition is ...
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Windows7 and Ubuntu 11.04 in grub

I installed Windows7 on my new netbook (x121e ThinkPad) and then installed Ubtuntu 11.04 afterwards, but grub won't load after startup and windows always starts immediatly. I already did such a setup ...
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388 views

Grub password appears to be plain md5 in hex, not md5-crypt in base64

The menu.lst file has a line that looks like "password --md5 c5ae09c39ad1e0d2aa12231eea7bc5c2" The grub-md5-crypt command creates salted, iterated md5 hashes that look more like ...
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207 views

How to install only GRUB bootloader and put chainloader to load automatically Windows?

I broke my boot partition but Windows is still installed and unaccessible. I had only Windows installed on my computer before. How can I install GRUB and chainload it to automatically load Windows? ...
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419 views

Debian Squeeze, linux-image-2.6.32-5-486: Boot process halts with [<c1003997>] ? kernel_thread_helper+0x7/0x10

I just upgraded an old box from Debian Etch to Lenny, and then from Lenny to Squeeze. Upon getting the system up to Squeeze, I installed the latest 2.6 kernel, linux-image-2.6.32-5-486. When I ...
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393 views

GRUB 2 configuration has no effect

I've edited /etc/default/grub to set a timeout and a default selection. I ran update-grub and my changes were reflected in /boot/grub/grub.cfg. When I reboot, I can see the new default selection be ...
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Ubuntu boot message when booting back into ubuntu after manual update

ACPI PCC probr failed is a message i am getting when i try to boot back into ubuntu 15.04 after performing a manual update yesterday. Any help with this would be much appreciated. ACPI PCC probe ...
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Creating a bootable hard-disk (qcow2) image with Grub2

i want to create bootable qcow2 image on fedora. How to create it. any suggestions.