GRUB2 is the next generation of the GRand Unified Bootloader (GRUB). Ubuntu has used GRUB2 as the boot loader since 9.10 (Karmic Koala). Commonly referred to as simply "GRUB".

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Can't boot into Ubuntu with Windows 8.1 installed

So you've probably seen this all before, but I have searched around a can't find a fix anywhere. I installed Ubuntu 14.10 on a 10GB partition of my SSD, said SSD has a much larger partition with ...
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1answer
15 views

How do I install Ubuntu 14 with UEFI and software raid0 on GPT SDDs

I usually work on a Mac and would like to setup a Linux workstation for Development. I have no experience installing Linux, because the servers I work with are hosted VMs. Most of the Ubuntu specific ...
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3answers
10 views

Grub2 rescue with Win7 & Ubuntu

I installed the Ubuntu 14.04 and a Windows 7 in the same HD. And everything was working, but I created another partition in Windows to store data. And now I can't boot. error unknown filesystem grub ...
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0answers
18 views

Cannot install grub fatal error

So I know this question has been asked to often. And I've tried most of them but none of them work. Tried using the boot repair and using the terminal but no good. I'm about to running dual boot on my ...
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0answers
18 views

Unable to install Ubuntu 14 LTS (64bit) on Lenovo Ideapad S205

My Lenovo Idepad S205 seems to be in a worse situation than in the question here Unable to upgrade or fresh install Lubuntu 14.10 (32bit) on Lenovo Ideapad S205 Unfortunately the answer given there ...
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0answers
9 views

How do I stop GNU GRUB from booting and select the Windows Boot Manager option by default?

I've decided to uninstall Ubuntu due to various incompatibilities. I tried going in to my BIOS but that option is not there. It says Ubuntu on my hard drive.
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1answer
31 views

Dualboot Windows 8.1/Ubuntu 14.04 No Windows Bootloader on grub2

So, I had Windows 8.1 and Ubuntu running fine on my laptop until Ubuntu updated to 14.10, after that Ubuntu could not load, just a Purple Screen and a Blinking CapsLock Key, so I booted into Windows ...
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2answers
6k views

No boot option after installing Ubuntu 12.04 LTS on Acer Aspire 4736z with Live CD

I am facing a problem. After installing Ubuntu 12.04 LTS using Live CD, at the reboot there is no boot option to choose the OS. I directly get logged into my Windows 7. Before that i was having an ...
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4 views

GNU Grub v.2 beta 2 9ubuntu1 always reboot?

I have here GNU grab version 2 beta 2 ubuntu 1. Yesterday, i just transferred the hard disk to another computer,because its previous motherboard is dead already. I cannot enter into ubuntu and ubuntu ...
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1answer
25 views

how to put windows 7 on linux mint or how to remove [on hold]

i already tried installing Windows 7 which it worked however when i installed linux mint basically windows 7 didn't show up in grub menu
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1answer
4k views

Ubuntu 12.04 & Mac Os X - GRUB Rescue prompt SET commands made permanent?

I recently re-installed my Mac OS X partition. This somehow messed up my entire partition scheme it seems. First I got dropped to the Grub rescue> prompt when trying to boot Ubuntu. I had never ...
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1answer
3k views

Is it possible to verify grub installation without rebooting?

I've been bitten by this so many times, and today after the openssl updates in my server grub complained that I should install it again since the "hard disks that it was previously installed do not ...
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40 views

How to repair Grub rescue knowing that I can not access bios?

I have made in creating a partition to install Windows 8.1, but I forgot that a hard disk can contain only 4 partitions, however when I created and when I start my PC screen put me error: no such ...
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1answer
26 views

How to boot to Ubuntu ISO image on drive?

I can't boot to the Ubuntu 14.10 ISO I have on my drive (running Ubuntu 14.04 as my main OS btw). I added these lines to the bottom of /etc/grub.d/40_custom: menuentry 'ubuntu-iso' { set ...
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1answer
25 views

Can't reinstall grub from Live CD after reinstalling Windows

How do I reinstall grub, after I have reinstalled Windows XP on dual boot system? I have Ubuntu 14.10 installed, and I'm trying to reinstall grub from Ubuntu 10.04 Live CD. However, I cannot install ...
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19 views

Troubleshooting Dual Boot: No results from boot-repair

sorry to post another one of these, but I cannot for the life of me get this dual boot to work. I am using a Sony VAIO S, which has Insyde H20. I have no issue booting from a disc or usb, but I cannot ...
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4answers
592 views

Windows 8 and Ubuntu Dual Boot Issues

I know tons of people have issues dual booting Linux with Windows 8 machines because of all the UEFI garbage. In fact, I had a similar issue last year. After installing Windows 8 next to Ubuntu, I ...
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22 views

Dual boot Ubuntu14.04/WIN7 separate disks

posting this question after three days searching online and trying various things. I have two physical drives (each a 480GB SSD), one with Ubuntu 14.04, one with WIN7. I would like to get a choice ...
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2answers
3k views

Can't access BIOS and installing a windows hard drive

Built new computer: AMD FX-8320 Eight-Core Processor × 8 9.7 GiB RAM Graphics GeForce GTX 650 Ti BOOST/PCIe/SSE2 Ubuntu 13.10 64-bit Desktop Computer 1 TB HardDrive BIOS Type, UEFI BIOS ...
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1answer
4k views

file error /boot/grub/i386-pc/normal.mod trying to repair boot, live dvd install probleml

I have seen that there are a lot of threads about this problem. I had Windows 8 installed on my series 3 samsung i5 computer and I tried to install ubuntu 13.04. This is what I did: Because of the ...
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1answer
21 views

Grub kernel upgrade (two different systems)

My system is partitioned this way: hdda 500 giga (/dev/sda) ssd 20 giga (/dev/sdb) /dev/sda /boot(300 mega) /home(remaining space) (/dev/sdb) / (14 giga main system with ubuntu 14.04 x64) / (7 ...
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2answers
103 views

Windows 8.1 not booting after Ubuntu 14.04 Installation

I'm an absolute Linux newbie, I've never used it before. I've just installed Ubuntu 14.04 on the same hard drive with Windows 8.1. When I choose a Windows 8 Loader in the Grub Loader screen, nothing ...
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39 views

Can't generate grub.cfg

Software Up To Date installed a new kernel for me yesterday ( Ubuntu 12.04, kernel 3.13.0-48-generic) After rebooting I ran grub customizer and got an error. Same from update-grub: Generating ...
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17 views

dd: Trying to recover my file system

ubuntu: 14.04 By mistake I ran the following command dd if=/dev/zero of=/dev/sda2 bs=1024 count=1 and now grub is unable to recognize file system and so the linux is not starting. I think I have ...
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New SSD in optical Bay, Cant get boot order to select it first

(fairly new to Ubuntu) Running 14.04 on a Mac (a1278 Mac 5.1), no dual boot just Ubuntu. Just installed a new SSD in place of my optical drive. It was recognized, and I used "dd" to copy my ...
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2answers
8k views

Grub rescue problem after deleting Ubuntu partition!

After I deleted Ubuntu partition, I rebooted my computer and got grub rescue problem. What I have tried so far is finding the right partition of ubuntu from grub rescue command by ls command. It ...
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2answers
44 views

Can't boot into Windows 8.1 from Grub menu on Ubuntu 14.04 LTS

My computer specs - 2GB RAM, Intel Core2Duo @ 2.7 GHz, 250 GB HDD. I've Windows 8.1 in partition C:\ and when installing UBUNTU 14.04 LTS, I chose the option "something else" and selected ...
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29 views

Ubuntu does not boot successfully with btrfs root partition errors

I have a setup on my laptop in which there are three partitions relevant to Ubuntu: a ext4 /boot partition, a btrfs root partition on LUKS and a swap partition on LUKS. Sometimes, after an unclean ...
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2answers
3k views

Ubuntu 14.04 boot error

Ubuntu runs smoothly on my system but after updating it created a critical problem. When I start my computer its says following errors: — Boot args (cat /proc/cmdline) — Check rootdelay= (did ...
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2answers
6k views

GRUB / os-prober doesn't see Windows 8.1 partition

I have a 1 TB HDD with seven partitions, one ~600GB for Windows and one ~300GB for Xubuntu and a bunch of assorted system partitions taking the rest of the space. I recently overwrote my Xubuntu ...
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3answers
53 views

Accessing the grub2? Common methods already tried

So I'm trying to access the grub2 menu (or any boot menu for that matter) and I have tried most things I have found online. I am running the latest version of ubuntu and it is the only OS so it ...
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0answers
20 views

Problem with Grub Rescue

When I start my PC I have a black screen telling me: No such partition ... Entering Grub Rescue Mode Grub Rescue To summarize, I would like to know if there is a way to solve this problem with a ...
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0answers
13 views

Using ssd drive as boot device

Installing Ubuntu 12.04 on a HDD after having selected a SSD-drive as boot device ended in an error whie installing grub. After that the SSD-drive didn't work any longer. What kind of damage on the ...
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3answers
169 views

USB (mouse/keyboard) turn off selecting Windows from GRUB

I completely reformatted a drive and set up the partitions as I wanted them. First I installed Windows 7 and things were smooth (keyboard mouse worked) Then I installed Ubuntu 14.04 and Grub and ...
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1answer
6 views

Hide partitions on RAID0 in GRUB2

I'm trying to hide two Windows versions from each other. I know how to do this on a single drive, however, it seems to be somewhat more difficult on a RAID0. More precisely, I don't know how to ...
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1answer
61 views

Ubuntu 14.04 Rebooting Not Working

When ever I reboot Ubuntu (not shutdown but reboot), my computer hangs. It hangs before grub even comes in to go to Ubuntu. I then have to manually do a hard shutdown and power it back on and it boots ...
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2answers
3k views

Why can't I install GRUB on my USB drive?

I'm trying to install Lubuntu to a USB drive, but I'm having a difficult time installing GRUB to the drive. The rest of the install seems to go fine. This is what I have tried Went through the ...
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3answers
848 views

I cannot access the BIOS after installing Ubuntu on Sony vaio e11 with Windows 8

I have a Sony vaio e11 series laptop with windows 8. I went to install Ubuntu from a bootable USB after wiping windows 8. I went to restart the laptop and I get a message saying error: unknown ...
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1answer
40 views

Error message when trying to install from USB

I have an old Lenovo laptop which came with Windows 8 preinstalled. I "factory reset" it and installed Ubuntu but then decided I wanted to switch to Zorin instead. I followed this article and deleted ...
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0answers
17 views

Messed up bootloader and locked out of windows/xubuntu. With live CD I ran boot-repair, now windows works but not ubuntu

My computer directly boots in to Windows?. I ran boot-repair and I can see my Ubuntu partitions are unharmed, what can I do to fix my system boot-loader?
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1answer
5k views

how can I fix error: hd0 out of disk?

I am running Ubuntu 12.04 on a netbook - Acer AS 1410. After a download session, I restarted the computer and it said: error: hd0 out of disk. Press any key to continue... I pressed ...
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0answers
12 views

UEFI boot hangs at grub with 82599ES 10-Gigabit SFI/SFP+ network adapter

I am using MAAS to commission and install machines. When I attempt to commission a machine with a "82599ES 10-Gigabit SFI/SFP+" network adapter the following happens: 1) TFTP Request — bootx64.efi 2) ...
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2answers
4k views

No GRUB Screen or recovery mode on Boot after 12.04 Upgrade

I tried the live boot CD and boot-repair, also loaded the Desktop install CD, and it looks like all partitions check out OK. However, when I try to boot Linux (the only bootable partition on the ...
2
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1answer
12 views

Need help with reinstalling grub

so I installed windows 7 after installing ubuntu, and as you may already know I can't log back into ubuntu. I tried running boot-repair but it seems to be stuck on purging the kernels (I left it for ...
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3answers
10k views

Manually install GRUB

I have the latest Puppy Linux (5.20, I think) but it has a problem with grub install at the end of the setup process. How can I install grub (or grub2, the easiest one will be great) manually using ...
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29 views

Can I keep my Ubuntu distro running if I replace Fedora with Arch in my dual-boot setup?

This is less of an Ubuntu question and more of a dual-booting question but I didn't find a better forum so I will post here. Currently, I am running Ubuntu 15.04 Beta and Fedora 21 in a dual-boot ...
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1answer
234 views

Blurry tty with nvidia drivers

I recently upgraded my computer, and after installing the latest Ubuntu there, have found an issue. I'm using the latest nvidia drivers (nvidia-346) from xorg-edgers ppa, along with a GTX 970 gpu. ...
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0answers
16 views

problem with grub2 rescue error in uefi system

I am a user of Lenovo B480 I installed the windows8 in UEFI mode alongwith ubuntu 14.04 & I have a GPT partition table.and my ubuntu grub has gone.I tried the bootrepair disk its not working how ...
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0answers
8 views

Can't boot from cd/usb- already have dual boot setup

I've got an HP g6 that came pre-installed with Windows 8. I've got it set up for dual boot with Ubuntu 14.04. I haven't had any problems with that, however, I can't boot from usb/cd. I'm familiar ...
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0answers
20 views

Boot Menu not functoning properly

My computer is currently dual booted with ubuntu and windows 8.1. When I turn on my computer my boot menu displays three options: "Ubuntu","Ubuntu Advanced Options", and "Windows Recovery ...