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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Distorted graphics resolution after updating quiet splash in Linux boot

I am facing this issue where the graphics resolution on my Laptop has gone worse after Ubuntu install. The problem crept up after I updated my grub to have a dual boot of Ubuntu and Windows 7. I was ...
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1answer
77 views

Booting from USB and I have to pull out thumb drive and put it back in at startup

I have been booting from USB for awhile, and every time I reboot or start after a shutdown, the startup scripts (grub?) get stuck. It seems that the USB drive is unmounted at some point in the ...
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0answers
20 views

Trying to Fix MBR [migrated]

I first decided that I wouldn't need Windows anymore, so I deleted it when I installed Ubuntu (I realized how wrong I was: no visual studio nor texnic center). Now I tried getting Windows back, so I ...
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2answers
45 views

Installed Ubuntu and now cannot Boot into it!

I installed Ubuntu in my new machine.Before installing I made the following changes turned off the fast startup option in windows 8.1 changed the boot to legacy supported changed preference to ...
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1answer
47 views

Error on boot: no such partition grub rescue

I have a dual boot system (Windows 8.1 and Ubuntu 14.04.02), However recently I have changed my motherboard and since then I am getting an error. I have reinstalled both of my operating systems and ...
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1answer
35 views

How to dual boot ubuntu and other distro?

I have a FAT32 formatted USB flash drive and I have burnt an ISO image in it using: dd if=myiso.iso of=/dev/sdb1 When it completed, I tried to boot from the USB and got an error Missing or corrupt ...
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2answers
43 views

messed up my boot/efi, couldn't boot into anything, now boot repair is not working either

i "accidentally" messed up the boot/efi folder when i was trying to replace it with one i had copied earlier(stupid I know) When i rebooted the computer i could not boot into ubuntu 14.04 nor windows ...
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1answer
36 views

Failure to boot

I have repeatedly installed Ubuntu 14.04.2 desktop i386 alongside Windows XP on my Dell Dimension 2400 several times in the past several days and each time the installation claims that it has ...
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0answers
15 views

Verbose messages at system start

In 14.04 after adding VERBOSE_INIT=YES to linux line in Grub it was possible to enable verbose messages at system boot. In 14.10 this trick doesn't work any more. Removing quiet argument from linux ...
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1answer
14 views

Data Recovery from unidentified disk [duplicate]

I was having windows 8 and ubuntu 12.04 on dual boot. Somehow my windows 8 was crashed so i reinstalled windows but now i'm not able to access ubuntu as well the data on it.I checked disk management ...
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2answers
40 views

Grub issue, boot repair not working

I have an installation of multiple systems on my laptop. I m running on a asus vivobook x202e with an i3, a 240gb ssd and 4gb ram. I have: Ubuntu 14.04, Ubuntu 14.10, Windows 8.1 and and fedora (Cant ...
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1answer
108 views

Ubuntu 14.10 Very slow boot

I installed ubuntu 14.10 and it boots slow. I searched the web and found some research about checking the dmesg, i did so and i found out there was some problems with my Bluetooth and i solved that. ...
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1answer
38 views

Problems with grub finding windows. Windows 7 / Ubuntu 14.04

So I'm gonna start out with this: http://paste.ubuntu.com/10720995/ Okay, so I have Ubuntu 14.04 and Windows 7 installed on separate hard drives like this: sda: Ubuntu 14.04 sdb: Windows 7 sdc: ...
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1answer
18 views

GRUB settings do not persist

I'm trying to make some fairly basic changes to a Ubuntu 14.04 install's boot behavior. Specifically, I want the default operating system launched automatically (NOTE: I don't care whether or now the ...
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1answer
45 views

Unable to go back to Windows 8.1 after installing Ubuntu for dual boot

I own a Lenovo G500s touch laptop that originally came with Windows 8.1 I followed an online tutorial on how to dual boot Windows 8.1 and Ubuntu. As of now, Ubuntu 14.04 loads up just fine after ...
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2answers
63 views

How to fix a corrupted partition table?

I was running a duel boot windows 8.1 and ubuntu 14.04 when I suddenly could no longer boot my system. After booting into a live usb and run GParted I get this error: Input/output error during ...
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0answers
21 views

Separate booting Ubuntu and Windows

I'm a Linux newb. I have one hard drive with Windows 7 and another blank hard drive. I had installed Linux on the second hard drive with the Windows 7 HDD detached. My Linux drive booted fine while ...
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0answers
15 views

Update from 14.04 to 14.10 NO LOGIN SCREEN

So i updated ubuntu (kubuntu) to 14.10 just now, i am in desperate need to get it to work. I cant login. No login screen is showing. Just a blank screen. I have done everything possible (shell, root ...
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1answer
34 views

Ubuntu 14.04 LTS shuts down and restarts

This is my first question so I'll try to do my best. I have a Gateway laptop and I wanted a change, so I downloaded, burnt and installed Ubuntu 14.04 LTS from www.ubuntu.com/download. Once it was ...
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0answers
30 views

(Unused) swap causing fan noise? [Ubuntu 14.10]

I was running Ubuntu 14.10 for a while without any (fan related) problems. The fan was very quiet and would blow slightly when e.g. viewing HD videos etc. Then I had to reinstall Ubuntu due to a ...
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2 views

How to safely go from dual boot Ubuntu/Win8 to single boot Win8? [duplicate]

So I had a Win8 laptop which I turned into a dual boot Win8/Ubuntu creature. Now I want to go back to solo Win8 and I want to make sure I don't screw up the boot manager things. Currently it uses GRUB ...
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1answer
36 views

Cant get back to windows after uninstalling ubuntu

I have a surface pro 3 so I thought about dual booting it with Ubuntu, every thing went fine but I didn't like it because it had some bugs and I couldn't get the type cover to work so I decided to ...
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1answer
27 views

Help interpreting fdisk after boot problems

I duelboot Windows 8.1 and Ubuntu on my laptop (unfortunately I can't remember which version of ubuntu I have). I today tried to boot it up and received the message "error: no such partition" when ...
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1answer
74 views

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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3answers
24 views

Grub2 rescue with Win7 & Ubuntu [duplicate]

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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11 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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2answers
85 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
8 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
71 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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1answer
55 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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0answers
31 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 ...
2
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1answer
42 views

How to boot to Ubuntu ISO image on drive? [duplicate]

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
40 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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34 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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0answers
50 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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0answers
23 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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0answers
19 views

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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0answers
62 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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1answer
30 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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0answers
23 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
68 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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0answers
27 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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2answers
64 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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1answer
13 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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0answers
24 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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22 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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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 ...
2
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1answer
19 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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0answers
21 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
9 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 ...