GRUB2 is the second revision of the GRand Unified Bootloader, with versions numbered 1.9x and 2.yz.

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How to specify an ISO as the location of root filesystem for GRUB?

I'm trying to understand the Debian "booting from Hard Disk" installation manual. The process is as follows: I copy a kernel image, a ramdisk initrd and an ISO with installer to the hard drive and ...
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99 views

How do I use the TPM to seal away data on an UEFI booted system?

I would like to seal away files on my system using keys stored in the TPM. Since my system uses UEFI to boot, I can no longer use TrustedGrub as a boot loader to maintain my trust chain. Are there any ...
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305 views

getting the message “out of partition” after installing GRUB 2. What is happening?

I recently moved a partition with a complete Linux install except /home to a new disk (with DD). Everything went fine, I can mount the partition, browse it... perfect. Next step: install GRUB to ...
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48 views

GRUB 2 scripting: convert device name in GRUB notation into a Linux device name

I'm trying to use partition labels (or UUIDs, that does not matter) to select root partition without use of an initrd/initramfs. With initramfs, this is fairly easy: root=LABEL=... or ...
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14 views

chainload multiple grub2 bootloaders

This is the context: I have a laptop with one hd which contains 4 partitions: 2 for windows: (hd0,1), (hd0,2) -> For windows 7 2 for linux: (hd0,3), (hd0,4) -> For linux (logical partitions). The ...
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31 views

Can't boot into lfs after completing chapter 9

I faithfully followed all the instructions in the LFS-7.5 book till 8.3. 8.4 is optional as it asks us to install grub or skip it entirely. I skipped this section completely and issued update-grub ...
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44 views

What is the kernel syntax when booting from ZFS?

I'm trying to write a grub.cfg completely from scratch that will boot one of several FreeBSD systems off of a single ZFS pool named tank with a set of root file systems named root1, root2, root3. ...
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83 views

How to access Win7 on a dual boot machine?

I've been dual booting Win7 and Ubuntu for about 4 months and I got on it today to change the default boot on grub, because my girlfriend kept getting locked out when it reboots and, by default, goes ...
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31 views

Password protect Grub2, but still allow normal boot

I have seen this link , but I don't have grub.conf in the first place. His situation is the inverse from mine though. This link explains quite a fair bit on Grub2, but I am still clueless as to how ...
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28 views

Can “grub-emu” make any changes to my system?

Can "grub-emu" make any changes to my system? I understand that the command "grub-emu" opens a GRUB emulator. However, since it loads the configuration files used by the "real" GRUB, I am a little ...
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322 views

Could I add GPT BIOS Boot Partition after Debian installation?

I recently installed Debian Wheezy on a server with 24TB of storage (RAID 6). When I partitioned the big volume I selected Manual option and created the partition scheme. When I was partitioning, I ...
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73 views

Grub video memory settings?

I have three monitors. Only two have a display. The solution that worked in the past was to increase the video memory in grub. I lost my old grub.conffile. So, instead of three displays, I only have ...
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806 views

Windows 7 to Debian Linux: install without CD/DVD or USB drive or net during install

Installed : windows 7 home premium. Now want debian linux. Tried a couple of things (see question below). Got installer menu using win32-loader.exe of debian from the goodbye-ms site. But I have a ...
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136 views

How to properly configure GRUB settings from KDE System Settings

I'm using Kubuntu 12.04 with KDE 4.10, and I recently installed the kde-config-grub2 that places a nice Grub configuration panel into KDE System Settings. I played around a bit, more for learning how ...
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222 views

Boot linux bootloader from Mac OSX

Recently I was running Fedora 17 on my computer which was an HP windows based machine. Unfortunately my computer has a malfunctioning motherboard and will no longer turn on. I removed the hard drive ...
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313 views

VirtualBox bug[?] when Chainloading Grub2

Regarding this: How to install Fedora&Ubuntu with encrypted VG's on one disk? So booted into Ubuntu..and I run this script: #!/bin/bash # show the bootlist of grub when booting pc sed ...
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34 views

Automatic shut down of Ubuntu 13.04 along side Windows 8

Things with Ubuntu were working absolutely fine, but suddenly, the laptop started overheating whenever I logged into Ubuntu. And that lead to automatic shutdown. I realised that it was definitely due ...
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55 views

Grub error: no such partition after fresh install

I just installed Scientific Linux 6.5 from DVD. The installation went smoothly and finished. But after booting it complains: error: no such partition Grub rescue> Prior to this computer, I ...
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26 views

Ubuntu Linux 12.04 - Load Non-MBR grub from the old grub in MBR

I have installed Ubuntu linux 12.04 on sda10, and grub2 in sda5 . Actually I had a legacy grub installed in MBR, I want to load Ubuntu linux from the old grub. How could I do this? This question ...
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278 views

ubuntu winboot wubildr.mbr missing

I have installed Ubuntu 12.04 (64 bit) operating system, It supports uefi so I installed it like a normal dual booting Now(not like wubi), when I try to load Windows8 it works fine. But when I try to ...
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29 views

GRUB2 Edit Mode problem

I have recently installed Fedora 18 using UEFI. The problem I'm facing is that when I try to go into edit mode in GRUB, my PC freezes, displaying just a black square instead of text. Unfortunately I ...
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320 views

GRUB2 under Mint: Booting PC-BSD without chainloading?

Wanting to try several operating-systems, I installed the following on a MBR-partitioned harddrive: Partition 1: FreeBSD on UFS split in root-slice and swap. No problem booting... Partition 2: ...
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185 views

Can't see my ssd drive when booting using grub on a usb pen

I installed debian on my laptop and everything was fine (I may need to mention that I'm using LVM) until I reached the grub point. Since I have a GPT partition he refuses to install properly. I ...
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314 views

Grub - Windows Invalid EFI file path

I have 2 hdd, Windows on the first, I installed Mint on the second. This destroyed the bootloader so I used boot-repair to restore it. Boot-repair identified both OS. Now my fresh Mint install boots ...
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274 views

os-prober not detecting Arch install

I'm triple booting osx, win 7 and arch on an apple macbook pro 8,2 I've followed the guide specific for my macbook pro here: Macbook Pro 8,2 Arch Installation As well as the beginners install guide ...
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299 views

grub-mkfont input and output formtas

I have a font that I can set using setfont and rc.conf [CONSOLEFONT]. It is in psf2 format. I would like to use the font in Grub as well. I'm using Grub2. When I run grub-mkfont -o ~/outfont pc.psf ...
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188 views

Dual/Triple Booting with dmraid and non-raid disk

I currently have 3 hard drives in my computer The first two disks are in a RAID-1 array, using an Intel P55 chipset, and accessed through dmraid, with the third drive partitioned like so: Filesystem ...
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134 views

Can you use grub to boot a RW partition file stored on a FAT32 HDD?

This is a bit tricky question. I have a Ubuntu 11.10 installed onto a USB 16GB Flash drive. I used the Ubuntu installer to do this. It runs great! Except the I/O is slow. I also have a 250GB USB ...
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2k views

GRUB2 and EFI - File not found?

I'm running Linux on a 8,3 2011 MacBook Pro. It uses EFI/rEFIt to boot. I was able to install GRUB2 EFI support, and it shows up just fine in the rEFIt boot menu. Everything seems to be working ...
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22 views

Acer c7 Chromeos problem: the bootloader was replaced

My model is Acer c710-2487. Son changed the bootloader to grub 2 but it can't find the o/s (if he put one there) on ahci0 (No known filesystem detected). How do I resolve? I would like to put back to ...
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23 views

boot mdadm raid0 linux

Generating archlinux raid0 mdadm array installing OS on full-capacity compact flash devices(no partitions) with btrfs filesystem installed. Desire to have this raid0 system boot (without partition). ...
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31 views

How to boot Linux Mint Debian with nomodeset?

On almost all the distros that I use I have to use nomodeset, but there's something I don't understand about Linux Mint Debian Cinnamon 64 bit. I edit boot menu, to look like so ...nosplash ...
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54 views

stuck at grub rescue on boot, no bios, no live cd, ls returns hd0

I have an external hard drive with elementary os on it, and when I took it out my preinstalled windows 8 laptop, it came up with the "error: no such device:'hex number' grub rescue>". I can't boot ...
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85 views

Stuck at Grub command line after boot repair

After updating Windows 8 to Windows 8.1 I lost access to Grub and my Linux Partition (running Elementary OS) so I tried using boot repair from a Live USB and now I can't access either. It drops me out ...
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24 views

Read Error after installing Fedora

I have windows 7 x64 installed on my HDD and I wanted to install Fedora 20 KDE on my second HDD. Everything went perfect during the installation. After the installation finished it asked me for a ...
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28 views

What does the --hint option in grub2's search command do?

I'm looking at the official GRUB2 docs for the search command, as found on http://www.gnu.org/software/grub/manual/grub.html#index-search Command: search [--file|--label|--fs-uuid] [--set [var]] ...
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94 views

How to clean up dual ESP partition mess

My initial setup: - Lenovo U510 Ultrabook - HDD + SSD (used by ExpressCache) - UEFI + SecureBoot enabled - Windows 8 preinstalled My goal was to create a nice dualbooting setup for Windows 8 and ...
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95 views

Install Elementary OS on an iMac from 2008

I'm trying to install Elementary OS Luna (based on Ubuntu 12.04 LTS) on my iMac from 2008. At first I tried the straightforward combination of hdutil and dd to a USB drive, which failed to even show ...
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26 views

How to make grub2 always boot into Windows by default?

How to make grub2 always boot into Windows by default? I'm using Fedora 20. I tried following a guide online, and it worked for a while, but was reverted by a kernel update. I'd like grub2 to ...
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32 views

grub-install no bias drive

While trying to fix this problem, I came up with tyring to use a live CD and running grub-install. I mount the directory holding my new linux install files (in /dev/sda7) with: su - mkdir /mnt/tmp ...
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40 views

Have to run Repair-Boot after booting windows

I have grub installed as my boot loader for dual booting windows 8 and Ubuntu. It works fine as long as I'm only booting Ubuntu but as soon as I boot windows, something stops working. The next time I ...
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531 views

Kali Linux + WIndows 8 - Cleared my master boot record, can't access Win 8

I'm not a linux power user by any measure and managed to screw up my MBR. Currently I have access to Kali linux, and GRUB is working fine (Kali installed without problems.) While installing Kali it ...
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41 views

Installing Linux Mint 15 on HP PROOBOOK 4740S

I have a problem. I'm trying to install Linux Mint on my laptop. I tried everything to install it in UEFI mode from disk but it wont start; it always says "reading error." Then I tried with a USB. ...
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560 views

Can't install GRUB. Dual Booting Kali Linux with Windows 7. Two different HDDs

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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148 views

Pressing Ctrl-X or F10 does not boot Linux

I am new to Linux and trying out different distros. However, my laptop has ATI GPU (Asus N56D) due to which many distros didn't boot successfully. After having google'd I found that I need to set ...
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209 views

Mint 15 - Black Screen after GRUB w/ NVIDIA

Recently I bought a new PC(with Haswell i5, GTX 660). First I installed Windows on it (for dual booting) - everything works fine, then I installed Mint 15, which worked when I used it from LiveUSB, ...
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59 views

Encrypted Zorin 7 Partition HELP!

I had Zorin 7 Encrypted Harddrive option installed on my laptop. I accidentally deleted important GRUB data trying to make more room in the boot folder i think? So the computer would no longer boot ...
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120 views

Setting up multiboot .iso usb using syslinux

I have followed jakgibb's tutorial for creating multiboot usb stick using syslinux. I want to boot linux live .iso's directly from USB drive using syslinux instead of method provided in ...
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96 views

How to check Grub2 config file?

When I boot my Fedora 19, I get a very brief error message when Grub2 loads. It's too quick to read, as it switches to the graphical mode almost instantly. My idea is to test the config file. I ...
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245 views

Grub broken after installation of Mint, hard drive not showing up in boot device list

I had problems with grub after my installation + my hard drive was not showing up in the devices list when i chose a device to boot (not from setup but before startup). I have tried several methods to ...