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

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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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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
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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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90 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
96 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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49 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
126 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
178 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
66 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
3k 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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34 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
104 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
61 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
229 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
815 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
291 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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320 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
376 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
1k 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
124 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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153 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
74 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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51 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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62 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
736 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
23 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
89 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 ...
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144 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
278 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
1k 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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227 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
59 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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333 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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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
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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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42 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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1answer
62 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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67 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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2answers
93 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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105 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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1answer
3k views

How do I update grub in Arch Linux

In Ubuntu we use below command to update grub 0.98 : sudo update-grub But how do I update grub version 2.00 in Arch Linux ? `
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125 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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1answer
146 views

Raid5 + LVM2 + grub2: final config and boot

I have a one disk, no RAID, no LVM system based on Debian Squeeze (my old system). I created a RAID array (RAID 5, 4 HDDs) with mdadm (my new system). I installed LVM2 on the new system and ...
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2answers
193 views

How to recover missing Grub File

On my test system. I was doing some testing and i move the grub.conf file from /boot/grub/ to /opt/ And on boot black screen came as expected with just grub> written on it. I tried to solve it using ...
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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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2answers
161 views

Make Grub2 boot into Windows/old kernel once

How can I make Grub2 boot into windows or an old kernel once (i.e Windows becomes the default option for once and grub boots into that after the timeout)? The reason being: My keyboard usually hangs ...
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1answer
159 views

How can I preview the GRUB2 boot screen?

I've been reading a tutorial that shows how to set the background image that will be displayed behind the GRUB2 boot options menu. However, I am concerned that the text might not be visible against ...
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0answers
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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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2answers
50 views

GRUB2 and Foreign Keyboards

If I have GRUB2 installed on a system that is using a foreign keyboard and I want to use CLI Mode, what key would I press? On Latin-based keyboards, we would press "C", but other alphabets lack the ...
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56 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 ...