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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How to solve Grub rescue and/or mounting hard drive problem

So, I have important files in this hard drive, and I need pick up them. To sum up, I had two HD on my machine: one with Ubuntu GNOME 14.04 and another two with Windows 7. I had to connect another HD ...
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96 views

Triple boot Windows partition no longer works after Yosemite upgrade

The problem: After upgrading to OS X Yosemite, my triple boot through rEFInd no longer works as it did before. Specifically, I can boot into OS X and Ubuntu, but not Windows. Furthermore, the way I ...
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15 views

Need help installing on raid 0 [duplicate]

I hope you al are doing fine. I have always wanted to use ubuntu as my main os but has always failed to install it on my fake raid 0. I have been using ubuntu via a virtual machine when it should be ...
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2answers
43 views

Official Installation Documentation?

Is there an 'Official Ubuntu Linux Documentation' Page on the topic of (How to correctly go about) Manually Partitioning for an UEFI install of Ubuntu 14.04 LTS (and later) During the “Something Else” ...
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19 views

dual boot with Windows 7 and Ubuntu switch to graphic mode fails

in 2013 I installed Ubuntu 12 LTS an Windows 7 (in that order) on a PC. I repaired GRUB and experienced the problem that Windows 7 seemed to start just fine from GRUB in console mode - but without ...
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1answer
41 views

Cannot boot both windows and ubuntu anymore due to wrong partition processes. How do i fix this?

Here is my story: I have decided to format my windows 8.1 with "onekey recovery" button of my Lenovo Ideapad Z510. When completed, i have no problems about windows, however grub2 have been lost. Then ...
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24 views

tty “crash report submission daemon”

I have installed Ubuntu 14.04 on my laptop. I have decided to only use Ubuntu on my laptop. So, I choose something else option.. for installation. I have created partition for swap area, / (root), ...
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1answer
44 views

How to Correctly Set up Dual Boot windows 7 and ubuntu on 120Gb SSD drive with UEFI

For as long as i have had my Alienware M17xr4 Laptop i've been trying to set up dual boot windows 7 and ubuntu 14.04 in UEFI mode.. I have a 120 SSD Drive partitioned to 80GB for the Windows 7, ...
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1answer
65 views

How to start a KVM-guest as single user mode

How to start a KVM-guest as single user mode? When I tried to start the VM as sigle user mode, it displayed "Booting a command line" on the screen and got stucked. This guest VM starts fine as multi ...
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63 views

Install Ubuntu 8.04 in triple-boot with Unbuntu 14.04 and Windows 8.1 [closed]

No, this isn't the typical duplicate question about dual Ubuntu (12+) with Windows 8. I am way past that, dual booting beautifully Ubuntu 14.04 LTS & Windows 8.1, thanks to this excellent answer ...
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1answer
71 views

Ubuntu/win 7 dual boot only boots to minimal grub prompt?

I was having trouble with my ubuntu dual boot so I ran the boot repair usb and was able to boot normally once. I tried to boot again and a screen with minimal grub bash 1.99 came up. I tried the boot ...
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18 views

Fresh install. POST is fine, then freezes saying GRUB

To elaborate, trying to boot into Ubuntu for a fresh install. Never get to the install screen. It passes bios POST, then says GRUB, and freezes. Left it sitting for about 10 minutes, no dice. ...
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59 views

install/boot in black screen

I have a Windows 8 on my computer Lenovo IdeaCentre-K and decided to install Ubuntu along side with Windows. As it was written I turned off security boot, fast boot and so on. I downloaded 64bit ...
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1answer
35 views

how can i fix Failed to fetch [duplicate]

10 and i have this problem in terminal when i want to update Failed to fetch http://ppa.launchpad.net/wagungs/kali-linux2/ubuntu/dists/utopic/main/binary-i386/Packages 404 Not Found
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1answer
26 views

Trying install OS on SSD but “Erro: no such device d7a2c…”

On HD left the /home directory, while the SSD (which was installed in place of the CD-ROM drive) left the / and the swap area. The first error was "No such partition", put live-usb, ran the ...
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1answer
84 views

Grub rescue, No access to BIOS and all linux partions have been deleted

I think I screwed up my computer. I used to have a dual boot with Windows 7 and Ubuntu (not sure which version) and Ubuntu wasn't working so I decided to delete Ubuntu and have a crack at Mint. So in ...
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2answers
44 views

Read Error with new harddrive

I put in a new HDD into my stationary computer and have tried to install Windows 7, Fedora 21 and Ubuntu 14.10. Windows 7 didn't install at all, when I created the partition and clicked "Format" it ...
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31 views

Installing ubuntu, wont boot, stuck at GNU GRUB

I'm just getting into computers, and I built my own PC and everything went really smoothly until I went to install an operating system. I installed ubuntu on a usb and everything was working fine ...
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1answer
40 views

GRUB not starting default system

My system doesn't boot until I press enter on grub. cat /etc/default/grub # If you change this file, run 'update-grub' afterwards to update # /boot/grub/grub.cfg. # For full documentation of the ...
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24 views

Silent dual boot (no boot menu) [duplicate]

Having both Windows 7 and Ubuntu 14.10 on the same disk will result in a boot menu on each boot, asking for a choice. How to hide the boot menu, and: Run Win7 if nothing has been done after 2 ...
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1answer
34 views

Where to put preseed.cfg on flash drive install?

I am trying to boot a machine to the Ubuntu Server installer without a local monitor or keyboard. Therefore I want it to start the installation with a preseed that setups up SSH with a user and pass. ...
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47 views

(Solved) Can't boot Ubuntu anymore

I'm running a homebuild PC, Intel i5-4670K on a msi Z87-G41 motherboard with 2 HDD:s. The systems runs both Windows 7 and Ubuntu 14.10 (formerly 14.04 when the problem first occurred). On one of the ...
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1answer
67 views

Fresh Ubuntu UEFI installation won't boot

On my Toshiba, Satellite E45T Ultrabook I have made a backup of my Windows 8 recovery partition; then I booted a Live USB with Ubuntu, cleaned everything on my HDD (750GB) and SSD (32GB) and installed ...
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1answer
35 views

How to reboot ubuntu of of live cd (USB) with ubuntu installed?

After finding out how to fix my hard drive partitioning problem, I went to boot from a live usb only to find out that the try Ubuntu option didn't come up in the grub menu and would only take me ...
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93 views

Need to remove GNU GRUB version 2.00-19ubuntu2.1

I originally posted a question about removing Ubuntu and GRUB from a dual boot system. This is what my partition map looked like at the start: My question was marked as a duplicate by moderators, ...
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1answer
76 views

error: failure reading sector 0x7c3c00 from “hd0”

After using Boot Repair (recommended options) from an Ubuntu 14.10 Live System (USB) grub fails with the following error: error: failure reading sector 0x7c3c00 from "hd0". Entering rescue mode... ...
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1answer
39 views

how to repair grub with dual boot windows 8.1

My Thinkpad runs windows 8.1 and Ubuntu 14.4 on dual boot. But when I tried puppy linux via a bootable USB stick my Ubuntu does not show up. It just starts windows 8.1. Any solutions? My BIOS is ...
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25 views

GRUB Compile error

I want to change the title of GRUB so I changed grub-core/normal/main.c but when i wanted to compile the package i found this tutorial but i have an error in include grub/types.h In file included ...
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2answers
99 views

Not booting into Ubuntu 14.10 [closed]

I have a dual boot system with Ubuntu and Windows 8. The grub boot loader fails to load Ubuntu. It was automatically loading Ubuntu in few seconds but not anymore. So, I manually choose Ubuntu but ...
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0answers
55 views

GRUB2 doesn't show Windows

I've got a Laptop and a Computer. On the SSD of my Computer is Ubuntu 14.10 installed. On the SSD of my Laptop is Windows 7 installed. Now I want to dual-boot them. I've put the SSD from my Laptop ...
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1answer
21 views

Moving boot disc to another

I have Ubuntu 14.10 installed on a Corsair SSD but am becoming a little nervous at the increase of smart errors appearing from it. I am considering the purchase of a new SSD to take over the role but ...
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2answers
81 views

cant start windows 7 after ubuntu dual boot upgraed

I was running dual boot win 7/64 - Ubuntu 12.04 installed via Wubi. After upgrading Ubuntu to 14.04, I can't login to windows 7, the GRUB menu loads, but its stuck on loading windows screen. ...
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1answer
43 views

reinstalling Windows 7 [closed]

I completely wiped Windows 7 off my machine to single boot ubuntu. I want to go back to dual boot. I have gparted, formatted, and tried to run the installation from bios/uefi chosen both usb and ...
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1answer
129 views

Dual boot (Ubuntu and Windows XP) - Error: No such device XXXXXXX

I am completely newbie on Linux. Some years ago I installed Windows XP and Ubuntu on my notebook, in a same HD, properly partitioned. Today I reinstalled Windows XP, but now I got this error message ...
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20 views

System doesn't start on one kernel version

I have a weird problem. I've recently installed quite much different stuff for GPU and network card, I also updated the kernel many times. I don't know how many of them was actually necessary. And ...
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0answers
79 views

Running dual boot with Win8 (UEFI) and Ubuntu 14.04 (Legacy), GRUB stopped working

I'm running dual boot Windows 8 (UEFI) and Ubuntu 14.04 (Legacy) on a Lenovo G580. It has never worked to pick Windows from the GRUB selection, I always go through BIOS, selecting UEFI for Windows and ...
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1answer
24 views

GRUB command is not working. [closed]

After upgrading from 12.10 to 14.04 grub command is not working, windows is getting frizzy. Can anyone help me ?
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40 views

Super boot manager 14.04

I tried to install super boot manager on Ubuntu 14.04. I used the terminal command given in this page. sudo add-apt-repository ppa:ingalex/super-boot-manager sudo sh -c "sed -i 's/trusty/raring/g' ...
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3answers
58 views

Ubuntu 14.04 won't load onto an empty hard drive

I have 2 HD's; 40 GB,Ch0 master with Win XP; 160 GB,Ch0 slave with Ubuntu 12.04. I used Parted Magic to repartition the 160 GB drive and I changed the jumpers to reverse the master/slave position. Now ...
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1answer
39 views

Can't boot after editing/etc/init.d/rc

I followed the instructions of a website that told me to change currency=none to currency=shell in /etc/init.d/rc and now my laptop stay in splash screen.
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124 views

Reboot and select Boot device or Insert Boot Media… After in Ubuntu 14.04.1

After I installed Ubuntu on my Toshiba Satellite C50d and I got this message: Reboot and select Boot device or Insert Boot Media in selected Boot device and press key. I see that it is a ...
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2answers
197 views

Failed to install bootloader /dev/mapper no /dev/sda

Ubuntu was running no problems on this laptop before I attempted a reinstall. I simply want a standard default install, no dual-boot. During installation bootloader failed to install. I continued ...
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1answer
78 views

Operating system not found; can't dual-boot

Been using Ubuntu since 2012, dual booting Win7 on my Aspire 4750G. But in early 2014, Ubuntu 13.04 started booting slow (was not able to list down error messages), until it simply would not boot. I ...
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55 views

How to use a custom resolution in grub2

I am using Ubuntu 14.10 on an Asus N550JK, which has a 4k HiDPI display. By default, grub uses the highest resolution possible: By starting the grub command line with c, I could list the supported ...
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1answer
92 views

Flash usb grub fail, grub rescue

When installing from the flash usb I was told a bootloader could not be installed. I chose the continue without bootloader option. When I restarted without the usb I faced a blank screen flashing ...
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2answers
46 views

Choose one off boot option in GRUB

I am running Ubuntu 14.04 : Windows dual boot. My USB keyboard is not responding in the boot menu so it is just timing out to my default OS (Ubuntu). I am sure there is a way to make GRUB boot into a ...
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70 views

problem accessing recovery mode in ubuntu 14.04

I'm using ubuntu 14.04 and I have a problem running my PC in recovery mode. I can get to the recovery mode screen in the grub menu but when I try to navigate through the options using up or down, I ...
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1answer
25 views

grub won't start ubuntu desktop automatically

After installing Ubuntu Desktop 14.04 grub2 starts. when I select Ubuntu it drops me out at a initramfs prompt with some suggestions about changing the root or delay parameters. If I type exit at the ...
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104 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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1answer
55 views

Windows not booting anymore after using easyBcd

I decided to install a dual boot on my windows 8.1 machine. Everything was working fine, but I had the unattractive grub booting option. I wanted to have the good-looking graphical windows boot ...