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

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Black screen after installing Arch Linux, conventional fixes don't work

I recently installed Arch Linux on my HP Pavilion dv6 (Radeon HD 6770m graphics card) to dual boot with Windows 7 by following the beginner's guide found on the Arch wiki. After grub loads, I choose ...
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1answer
497 views

Ubuntu - Booting black screen with purple border

After the installation of Ubuntu, when I try to boot a black screen with a purple box appears without let me see the GRUB menu. Then the screen becomes black and Ubuntu starts booting. Ubuntu is the ...
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399 views

Repair GRUB from Arch live CD

I'm trying to install Arch on sda8 (with swap on sda7) following the instructions here. I got to the part of setting up the WiFi a second time, but since I already have GRUB, I got lost at the section ...
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1answer
98 views

Where is hibernation resume getting the device node from?

A while back, I set up hibernation on my Linux system. It's been working really well, up until tonight when I installed another hard disk, which shuffled the device node names around. So now on boot I ...
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1answer
161 views

os-prober giving wrong UUID for Arch Linux

Up until yesterday, everything was working find and os-prober was successfully generating menu entries for the Arch Linux install. However today when I tried to boot into Arch, I got an error that the ...
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1answer
167 views

Grub modify menu screen [ advanced ]

I've modified my Grub menu. Here is how it looks like right now: What I would like is to remove the top information about Grub version or even better to remove all "GNU GRUB version ...
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1answer
183 views

Why do I need GRUB_DISABLE_LINUX_UUID=true

I just switched from lilo to grub2 and my first attempt failed with kernel panic - not syncing vfs unable to mount root fs on unknown block(0 0). It turned out that the problem was that the root ...
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1answer
272 views

How do I restore grub on a uefi boot after a windows update wiped it?

Until yesterday I had a dual boot debian / win8 with grub that worked like a charm. Yesterday a stupid windows update totally wiped grub and I'm now unable to boot in linux. I installed linux a year ...
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2answers
74 views

Deleted a Windows.old folder and now when I start my computer, GRUB doesn't see windows anymore

I had windows on my laptop and installed Debian GNU/Linux a few weeks ago on it. I'm basically dual booting. The thing is, in my windows I had a windows.old file I never bothered to delete until a ...
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1answer
424 views

Installing GRUB2 in a GPT disk on a partition

I'm using a MacBook Air 2013 and I'm trying to install Gentoo. I already did it several times but I always used other "workarounds" to this problem such as using directly a EFI-stub kernel image. ...
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73 views

Errors dual booting Ubuntu Studio 13.10 and Windows XP Pro x64 using GRUB 2

Getting the following errors when I try to boot Windows XP Professional x64 Edition (on /dev/sda1) using GRUB 2: error: no such device: A8542EOA542DDC36. error: invalid signature. I originally had ...
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0answers
374 views

Installing Arch Linux alongside OS X - Bootloader issues

I have installed Arch Linux alongside my OS X install on my MBP 11,1 using the guide found here, however on the last three commands of the boot loader section I get the error /usr/sbin/grub2-probe: ...
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1answer
97 views

Grub-EFI: disable signature check?

Following on from my previous question, it seems that Grub-EFI refuses to boot any kernel which isn't signed. Which is a problem, because the kernel I want to boot isn't signed. So what I'm wondering ...
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1answer
66 views

Unable to boot to windows

Context: Recently I've bought an SSD. Before that I had 2 HDDs; one being a 500GB drive with a W7 installation, and another 320GB Drive containing two partitions, one of which for storage (NTFS) and ...
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1answer
83 views

How can I chainload GRUB on another drive?

I have two pen drives. On one I have a full install of Arch GNU/Linux. This install is compatible with both EFI systems and BIOS systems; it has a GPT drive with a BIOS Compatibility Region and an EFI ...
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1answer
1k views

Elementary OS only booting from USB, cannot boot to partitions on SSD (Windows and eOS)

I previously had Linux Mint Petra and Windows 7 installed on my Asus UX31a. This worked fine until I ran into some Wi-fi issues after messing around with NetworkManager. I decided since I didn't have ...
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4answers
2k views

Grub error 15 (file not found)

I'm trying to fix a problem with a new installation. I'm running this existing distro (Ubuntu) from /dev/sdb with a new OS, Gentoo, installed on /dev/sda. I'm glad I took the trouble of setting these ...
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0answers
101 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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1answer
124 views

Grub v2: kernel “has invalid signature”

Can somebody explain what this exact error message means? grub> linuxefi /boot/i386/loader/linux error: /boot/i386/loader/linux has invalid signature. What is Grub trying to tell me? That the ...
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1answer
51 views

Grub2 on wiped MBR

I'm trying to test grub2 on puppet in a VM and one of the tests is to make sure it'll still work on a wiped MBR. So I wipe the MBR with dd if=/dev/zero of=/dev/vda bs=512 count=1 Then I try to ...
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2answers
172 views

Boot 32-bit OS from 64-bit GRUB2

I can't believe nobody has asked this already, but... If I've installed a 64-bit version of GRUB v2, is it supposed to be possible to load a 32-bit Linux kernel? Or will it only load a 64-bit one? ...
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1answer
204 views

/etc/default/grub syntax error

How can I add kernel parameters with whitespaces to GRUB_CMDLINE_LINUX_DEFAULT? For example when I do: GRUB_CMDLINE_LINUX_DEFAULT="quiet acpi_os_name=\"Microsoft Windows XP\"" followed by ...
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1answer
68 views

Transfer 2 drive raid0 / lvm2 system to new drive pair

I have a multi-boot, multi-drive system that I want to transfer onto 2 bigger drives. Currently pc has 2x1TB drives with Fedora 19 running, using RAID0 drive mirroring, with LVM2 on top of the md. I ...
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3answers
4k views

How to install Kali linux on to a specific (existing) partition on a USB stick

I'm endeavoring to put Kali linux onto a USB stick - I know it's already written up, but I'd like to use only a portion of the total space (the aforementioned link will use the entire drive space). ...
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0answers
39 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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1answer
148 views

Generating grub.cfg without Linux installed

My dual boot machine went haywire yesterday, and seriously corrupted the Linux partition. Among the corrupted files were: The entire /boot directory Quite a few stuff in /bin "No problem", I ...
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1answer
66 views

Why do I get dropped into a GRUB rescue console? [duplicate]

I've been setting up my environment on a fedora 20 64bit, the last week. After a restart tonight I am unable to boot into my system. It boots into this terminal/prompt and it says: [ Minimal ...
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0answers
277 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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1answer
1k views

Why does my Arch install hang at random stages during boot?

I've installed Arch on my Macbook Pro, and I can't get it to boot. I removed the quiet flag from grub.cfg to figure out what's going on, but I can't find any pattern. Here are the last few lines of ...
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1answer
332 views

Linux Mint Booting Installed Partition [duplicate]

Recently, I decided to install the loved Linux Mint. I made sure I had space for a partition, and installed it. I am currently on the "trial" part, where it has "Install Linux Mint" on the desktop. I ...
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466 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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2answers
528 views

GRUB doesn't have the timeout anymore

I noticed this first when I removed the i386 kernel and left in place the amd64, so I installed the i386 kernel again, still doesn't work. Nothing explain why I need to select the boot option if I ...
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2answers
2k views

Unable to find root device / sda partitions missing

I have installed Archlinux, and after that GRUB. I manually entered menu entries for both my Windows and Arch installation. GRUB has no problems booting, and can successfully load in Windows. It ...
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1answer
151 views

How to dual-boot on a machine with PGP WDE?

PGP Whole disk encryption ("WDE") is an encryption software that encrypts all your data, and includes a bootguard. Because of this, I have been unable to successfully dual-boot, as there is no place ...
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166 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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1answer
79 views

Restore os-prober script in /etc/grub.d

I accidentally removed 30_os-prober script in the directory /etc/grub.d. How can I restore it without reinstalling Grub? I didn't find any manual or command list for os-prober. I'm on ArchLinux ...
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55 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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0answers
71 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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1answer
1k views

GRUB won't boot (no such device)

I have 4 hard disks (I am on Debian LiveCD now): user@debian:~$ sudo blkid /dev/sda1: LABEL="System Reserved" UUID="EE2CE1122CE0D71D" TYPE="ntfs" /dev/sda2: UUID="AEB0F4D6B0F4A64D" TYPE="ntfs" ...
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1answer
25 views

Does GRUB install itself on every disk?

I have 4 hard disks. One of them houses Debian, one Windows and others are just storage. Does GRUB install itself on every MBR of every hard disk? (I have not specified any path explicitly for GRUB ...
2
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1answer
96 views

grub2-install doesn't work the first time, but does work the second time

This is a weird one... I'm working on some software. It has a function to make a USB device bootable. It does this by running a long, complex sequence of actions to copy a minimal Linux OS onto the ...
2
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0answers
190 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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1answer
340 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]] ...
4
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1answer
2k views

How to reinstall grub to the EFI partition after initially installing it in Linux root. Do I have to start over?

My machine was running Mint 15 KDE 64-bit (GPT partitioning, EFI bootloader without 'secure boot'), and I wanted to try Mint 16 before committing to it. So I installed it into another partition and ...
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270 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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1answer
67 views

WD Advanced Format confusion

One of my Hitachi DeskStar 7K160 hard disks died today and the other one is not safe (has bad sectors) so I've ordered a new 1 TB WD Blue WD10EZEX. Apparently nowadays new hard disks come with this ...
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0answers
394 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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0answers
17 views

Installing Grub from a 32bit rescue disk to a disk with 64bit Linux [duplicate]

Is it possible to reinstall Grub on a disk with 64bit Linux using a 32bit Linux rescue disk?
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3answers
6k views

GRUB-EFI installation fails while installing Kali Linux in external hard disk

I was trying to install Kali Linux from a live USB to an 1TB external hard disk. At first I was unable to boot the live USB with my H2O Insyde BIOS. Then I converted my pen drive partition table to ...
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0answers
44 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 ...