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

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How does grub2 load the kernel from an LVM volume?

Grub2 is able to load the kernel even if /boot is placed on an LVM volume. To use this feature one needs to add insmod lvm (the module can be on the grub bios partition that is not on an LVM volume) ...
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1answer
5k views

After installing a new Kernel in Ubuntu 14.04, rebooting takes me to busybox initramfs. How do I mount a filesystem after that?

I have a virtual machine with Ubuntu 14.04 in it. I recently built and installed linux-3.14.5 kernel on it, and tried to boot into it, but it drops me to BusyBox v1.21.1 built-in shell. Here's what I ...
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1answer
5k views

Zorin/Windows 7 Dual Boot on New Hard Drive, no GRUB!

So my computer had Windows 8 originally, and my hard drive died. I was able to get a dying hard drive from work to use temporarily, and decided to go with Windows 7 this time, as HP had drivers for ...
2
votes
1answer
546 views

Can't install GRUB, no matter what

My PC has Windows 7 and Mint 16 (Cinnamon). After installing Mint, GRUB stopped working, and I got a GRUB Rescue console instead of the GRUB menu. Being in a hurry, I launched the Windows installation ...
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0answers
567 views

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
1k 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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0answers
2k 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 ...
4
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1answer
142 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 ...
2
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1answer
747 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 ...
4
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1answer
311 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
817 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
961 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
186 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 ...
2
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1answer
3k 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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0answers
110 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
456 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
427 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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2answers
133 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
235 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 ...
0
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1answer
2k 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
7k 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
198 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
232 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
129 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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1answer
663 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
448 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 ...
2
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1answer
120 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
11k 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). ...
3
votes
1answer
463 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
128 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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1answer
3k 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
494 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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0answers
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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
3k 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
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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
392 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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0answers
248 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
127 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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0answers
100 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
4k 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" ...
2
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1answer
47 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
votes
1answer
235 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
votes
0answers
347 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
939 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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1answer
3k 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 ...
3
votes
1answer
105 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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3answers
15k 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 ...
2
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1answer
69 views

Isn't /boot a separate mount?

My understanding is that /boot is being accessed by lower level tools (e.g. grub) during system startup and so it is formatted specially in a simpler format than the rest of the disk. But when I do: ...
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2answers
128 views

How to beat GRUB2 into submission?

I have tried GRUB2 on different Ubuntu releases (12.04 and 13.04) on several machines and no matter what I do I can't get it to behave. It seems like a great idea (abstracting away configuration files ...
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0answers
210 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 ...