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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Removing grub from laptop

Is it possible to remove grub by doing a windows 8 refresh Wondering if this would work as I'm doing this on a friend's system. Dont want to mess up anything. He doesn't have a CD to fix the MBR so I ...
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4answers
3k views

Grub or Windows Bootloader for Dual Boot?

I've used Ubuntu using WUBI for a couple of months and decided that this was not what I wanted and that Ubuntu should have its own partition. I have it set up like that now. My dilemma deals with ...
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42 views

grub-customizer

I have always been a windows user. Thought I would try kubuntu to see how I liked it. I would like to make windows my default, so I downloaded grub-customizer to reset the boot. I really do not ...
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231 views

Ubuntu refuses to boot with acpi_backlight=vendor

I bought a Dell Inspiron 14 5000 series and dual booted Windows 8.1 and Ubuntu GNOME 14.04. The brightness would not change, so I booted with kernel parameter acpi_backlight=vendor and it worked. I ...
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44 views

Upgraded Ubuntu… now only have Windows

I've had Ubuntu 12.04 for about a year now, resisted upgrading because everything works fine. Finally I gave in because I noticed many Windows applications on Wine just aren't working anymore. I ...
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23 views

Could not initialize sdl no available video device

Hi I booted to tty1 by changing the grub from splash to text. I have a GUI program to run at startup but when i login i am getting could not initialize sdl no available video device. But when i put ...
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2answers
24 views

Bootup (100 times slower than usual) drops to a shell IF at boot time the computer was off for less than 5 minutes. USB mouse no longer recognized

I've been using Ubuntu on a Windows dual-boot Sony Vaio VGN-CS390 laptop for more than five years now. Yesterday I made a fresh install of 14.04 LTS over 12.04 LTS. Everything worked fine, even after ...
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50 views

Ubuntu14.04 Installer Crashes

I have been trying desperately to install one of the linux distros but I'm not having luck. Usually, the reason is GRUB not installing. Now, I'm not a linux guy and I rely on help from others. One of ...
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1answer
10k views

Add android-x86-4.4-RC2 to ubuntu grub

I installed android-x86-4.4-RC2 with windows xp and windows 7, after I installed ubuntu 14.04. Now android-x86-4.4-RC2 is not showing up in grub. What should I do to fix this? Thank you! Edited: I ...
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3answers
3k views

Booting Android with GRUB, but how?

I have a small problem. I have seven partitions: Device Boot Begin End Blocks Id System /dev/sda1 * 206848 219013119 109403136 7 HPFS/NTFS/exFAT <-- ...
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45 views

Dual boot Windows will not load after installing wireless driver

On a new machine, I partitioned the hard drive equally, and installed Windows 8.1 on one partition, and Ubuntu 14.04 on the other. Both OS's booted successfully from grub. Now, my wireless adapter is ...
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31 views

Bad kernels upgrade, and it is impossible to delete them

I have a huge problem on my Ubuntu 14.04. It runs an 13.3.0-39 kernel. A while ago I wanted to update the kernel via Synaptic to 13.3.0-40 and 13.3.0-43. Unfortunately, the kernel upgrade did not ...
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23 views

After upgrading to Ubuntu 14.04 my windows partition is having an invalid signature

I had a dual boot computer with windows 7 and ubuntu 12.04. I had grub with the option to jump into windows 7 at any time. Now today I was in Ubuntu and I decided to upgrade to ubuntu 14.04. After ...
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2answers
38 views

dual-booting now have 2 grub-menu's

I have a Dell Inspirion laptop stock with Windows 8.1, I have added Ubuntu 14.04. Ubuntu install went perfect, rebooted came to the regualar, grub2 menu, (I say regular because it's the same one I've ...
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1answer
58 views

Xen vm stuck at grub prompt

How can I get my Ubuntu server booting again? Is there a tool that would auto-fix this situation? No matter how many ways I run the "boot fixer" using a virtual image of ...
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1answer
626 views

GNU GRUB, Minimal BASH-like line editing screen displays before the usual GRUB screen when dual-booting Ubuntu 14 and Windows 8.1

I have read a couple of posts similar to this issue, but it seems many of them could not boot to Ubuntu after getting this screen due to a bad boot manager. It does not seem this is the case for this ...
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42 views

How can I chainload Fedora GRUB from Ubuntu GRUB?

I have a laptop with an UEFI setup, and I have the following OSs installed: Windows 8 Fedora 21 Ubuntu 14.10 Secure Boot is turned on! Booting all these from the UEFI boot menu works fine. I am ...
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1answer
86 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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0answers
15 views

Ubuntu boots to grub [duplicate]

I've been trying to install a dual boot with windows 8.1 and Ubuntu 14.04.1 but whenever i try to boot my computer to Ubuntu via live USB it leads to the GRUB2 command prompt. I was wondering how I ...
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1answer
42 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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1answer
45 views

OS selection screen not showing on startup

I installed ubuntu 14.04 on a separate hard disk twice. First time I put the boot loader on sdb but it goes straight to Windows 8.1 on startup. So I installed the second time with boot loader on sda ...
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17 views

Grub2 enters console instead of showing menu

I installed Kubuntu 14.04 on an Acer Aspire R7 571G. When installing I chose to use the whole hard drive (removing the existing windows 8). Installing was successful, but when rebooting it didn't ...
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1answer
164 views

Problem understanding a grub.cfg line with search.fs_uuid

while learing and adjusting my boot setup, I am stuck unterstanding this content in my grub.cfg on the EFI patition of my drive: search.fs_uuid <uuid> root hd8,gpt5 set ...
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1answer
35 views

How do I change the Window manager from grub or the command line?

I recently installed a "window manager" (Steam's Big Picture) that crashes on load, effectively preventing me from doing anything. I've thought of two possible solutions: one would be to edit the file ...
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1answer
25 views

Partition of windows causing problem after installing and not shown in grub

I recently installed windows 7 to my computer. After installation my ubuntu partition was converted into unallocated space. used testdisk to recover it. After that i ran boot-repair recommended ...
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1answer
98 views

How to restore GRUB and Ubuntu 14.04 after choosing a wrong partition?

First of all, i tried finding previous questions, didn't find anything that quite matches my case. I have Windows 8.1 as well as Ubuntu 14.04 LTS in dual boot. In the grub OS list at boot, I ...
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0answers
91 views

Error calling EVIOCSKEYCODE

Using 14.04, I have the following error displayed when booting up: Error calling EVIOCSKEYCODE It doesn't cause any problems with the system, but I would still like to remove it. Now, I managed ...
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22 views

Arrow keys does not work sometimes and work sometimes on grub page?

My issue: I have a laptop with Android-X86 and Ubuntu-14.10. I can not switch between them properly on grub. When I turn off my laptop via Ubuntu, next time, arrow keys (and others as in RETURN) do ...
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29 views

Lost GRUB after reinstalling windows 8.1 prior had dual boot with Ubuntu 14.04 [duplicate]

Dual boot was working fine with windows 8.1 and Ubuntu 14.04 but I had to reinstall windows 8.1 (some reason) now my PC directly boots into windows 8.1 without showing GRUB. You might want to say ...
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4answers
8k views

“Unable to install GRUB in /dev/sda” when installing GRUB

I recently bought a shiny new Lenovo Yoga 2 Pro and I want to dual boot it with Ubuntu for studying purposes. Its built-in OS is Windows 8.1 and it has a 256GB SSD. I've made a separate 90GB ...
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0answers
37 views

Dual Boot Ubuntu from USB on a Mac: “Loop not found” and “Load Kernel First” Error in GRUB

I have the Mac version of Ubuntu loaded onto a USB, booted using ReFINd with an EFI partition. All runs until I select the Ubuntu EFI Boot in reFINd. Once loading begins, I get a "Loop not found", ...
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84 views

grub menu does not show windows 8 option after installing kubuntu 14.04

I recently installed kubuntu 14.04 on my machine that had windows 8.1 pre-installed.However, after restarting the system the grub menu does not show windows 8 option. I've already tried updating the ...
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1answer
40 views

Ubuntu reinstallation side by side with Windows XP

Here's the issue: my partition table is a mess: Device Boot Start End Blocks Id System /dev/sda1 * 63 126435960 63217949 7 HPFS/NTFS/exFAT /dev/sda2 ...
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1answer
112 views

Ubuntu boot from internal HDD fails with “unable to find media containing live file system” message

I have created a DVD containing Ubuntu 14.04 and have successfully run 14.04 from it. I have taken the option to install 14.04 as a dual boot with Windows XP. The installation appeared to go smoothly ...
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1answer
125 views

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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2answers
92 views

Ubuntu 14.04 booting, behaves like a spoiled child

I've unsuccessfully tried to boot again in Ubuntu after 1 week of not using it. It clearly punishes me for that. Joke aside, please know that i'm using "vanilla" Ubuntu. I didn't tinker with it. All ...
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0answers
112 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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1answer
42 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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1answer
49 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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0answers
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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20 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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28 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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2answers
2k views

Permanent GRUB edit from RO to RW

I recently installed the latest version of UBUNTU onto my laptop and having a slight issue during boot-up. During boot up I get the following error: "Serious errors were found while checking the ...
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1answer
3k views

Ubuntu 13.10 software raid

I had already Ubuntu OS installed on my desktop PC, where the software RAID 5 is configured ( 3 partitions /, swap and home ). This system was upgraded from the 11.04 till 13.04, it was quite messy, ...
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1answer
6k views

How to Re-Add Windows XP to grub menu after Ubuntu 11.10 Re-install

Basically, I messed up my partitions and decided to do a full re-install of both Windows XP and Ubuntu 11.10 (I know that 11.10 is outdated, but I was planning to do an update to 12.04 as soon as I ...
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1answer
69 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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3answers
4k views

GRUB UEFI windows boot fail

I've read about this, but still can't figure out my problem. I've got a new laptop with windows 8 preinstalled. First thing I did was installing ubuntu, then GRUB, as I always did. Now I can boot ...
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3answers
3k views

Is is possible to modprobe a module from the boot loader?

I want to modprobe a module from the kernel command line (in my case yaboot, but you are probably more familiar with grub). This is for a workaround for the live CD. I've seen some old advice that ...
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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
73 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 ...