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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Boot-repair Boot Info: dual boot Windows 8 and Ubuntu

I cannot boot Ubuntu installed alongside with Windows 8.1 on my laptop with UEFI (Sony SVP1322R4RBI). I followed the instructions on dual boot Windows 8 and Ubuntu, tried Boot-Repair with ...
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10 views

cannot find ubuntu in grub menu

I had dual boot windows 10 and ubuntu 14.10. I installed windows 7 on the partition where my old windows was. now I cant find any options for selecting OS,windows loads automatically. I tried ...
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6 views

SSH Via Flash Drive

I updated Ubuntu and when it came back up it had some error about Grub and then it said it was in recovery mode. I followed instructions online to get things back like linux and normal but it could ...
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2answers
24 views

Boot Device not found after installing xubuntu 14.04

I bought a new desktop with windows 8 installed. I installed xubuntu 14.04, completely erasing the windows install. On startup I get a screen (not from grub) that says "Boot Device Not Found. ...
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1answer
9 views

nomodeset no longer working

I've always needed to set nomodeset on my machine on first boot before installing the Nvidia proprietary drivers (GT340 graphics card), which has always been easily achieved via the LiveCD's Boot ...
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1answer
40 views

How to change the timeout of GRUB Boot loader screen in Ubuntu 14.10?

I use Ubuntu 14.10 virtual machine in headless mode and access it using ssh. But many a times it gets stuck on GRUB boot loader screen and I have to log in to the VM in graphical mode and restart in ...
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0answers
28 views

kernel panic on boot

I'm having some trouble booting ubuntu 14.04. The most weird thing is that after the kernel panic error shows up, if I restart the laptop, grub appears (not showing up when the panic occurred), and ...
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2answers
45 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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1answer
26 views

Ubuntu not booting on SSD

I have an SSD which I installed both Windows 7 and Ubuntu 14.04.1. When I installed Ubuntu I allocated 500 MB to /boot and the rest of the Ubuntu partition to /. The installation completed and now ...
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1answer
21 views

Grub 2 detects incorrect partition for windows

Windows 7 is present on /dev/sda3, but grub 2 detects Windows 7 on /dev/sda1. How can I configure Grub 2 so that it will always point to /dev/sda3 for Windows 7, even if later on I do a sudo ...
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78 views

Installed Ubuntu 14.10 on MacBook Pro (5,5) without rEFIt or rEFInd, hangs on purple screen

I recently inherited a mid 2009 13" MacBook Pro. I wanted to install Ubuntu 14.10 on the machine rather than OS X. I've previously had success with Ubuntu 13.10 on a 2006 MacBook by booting to live ...
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1answer
11 views

How can I set up muti-booting by grub on a usb with different OS .

How can I set up multi-booting by grub on a usb with different OS . The purpose is I want to choose the different OS when I plug in the USB.
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33 views

USB drive does not appear in BIOS boot order

I installed Ubuntu 14.10 along with Windows 8.1. Obviously I used a USB drive to install Ubuntu. I made all changes to UEFI so I could boot from USB. I could see the USB in the Boot Menu and was able ...
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0answers
17 views

Grub2 Add Kernal Boot Flags

In grub I need to add kernel flags to one entry but not another. I plan on doing this by adding a custom boot loader. If this is the script I plan on using to boot the OS, where do I place the kernel ...
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0answers
22 views

Windows Boot Loader Calls Old GRUB Version

I have two hard drives and two GRUB versions. Windows still relies on the old version that I want to remove. How can I make Windows Boot Manager talk only to my new GRUB version. I started off with ...
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1answer
94 views

Dual Boot Windows and Ubuntu, Grub Problem

I'm a linux novice trying to get a windows/ubuntu dual boot working. I can access both OSs ok, but only by navigating through a series of strange BIOS menus for Ubuntu (Windows boots automatically). ...
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0answers
5 views

rd_size being ignored on boot

I need to set up one ram-disk of about 500MB so: I have added rd_size=512000 to my boot line (via /etc/defaults/grub & run update-grub) but I am still only given 64MB ram-disks As brd is ...
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0answers
11 views

Disk Partition using disk utility on ubuntu 12.04 [duplicate]

I have a Dell Laptop which is running Ubuntu12.04 Lts. The ubuntu was pre installed in the sysytem. It has a 1 tb harddisk capacity. I want to have a dual boot installation . I want to install ...
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0answers
30 views

Can't get to grub menu for dual-booting windows 8.1 and ubuntu

I have been knocking my head against this issue for weeks, and I am at a point where I do not know where to go next. I have a Sony VAIO that came pre-installed w/ windows 8 (has since been updated to ...
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1answer
105 views

Black screen, can't even get to boot menu

Ok, so I'm a noob. I just needed to install tails and I was going to be done with ubuntu. I burned the image to a DVD then restarted it to boot from tails. (Incase it might be related to anything the ...
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0answers
27 views

Boot Failure 12.04

My machine won't boot, freezing mid-boot with a flashing caps lock, and booting in recovery mode I managed to get "Kernel panic -- not synching: Attempting to kill init! exitcode=0x00000007" I took ...
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2answers
390 views

Trying to dual boot Ubuntu 14.10 with Windows 10, last one not detected (semi-solved)

I have a laptop, and I'm going to install Ubuntu (I have experience, and I have successfully installed Arch Linux, Ubuntu, Fedora, Debian, Xubuntu, Kubuntu, Manjaro Linux, etc.), but installing ...
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1answer
27 views

lenovo t420 /Ubuntu 14.04

A screen has appeared with it saying at top GNU GRUB version 2.02~beta2-9ubuntu1 Then in a box says *Ubuntu,with Linux 3.13.0-43-generic Ubuntu,with Linux 3.13.0.-43 generic (recovery mode) ...
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30 views

Dual-boot Windows and Ubuntu constantly crashing

http://paste.ubuntu.com/9597237/ I have an Ubuntu 14.04 dual booting with Windows 8. I want to be able to switch back and forth, but that seems to be an iffy proposition. The Windows was installed ...
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19 views

Accessing Windows 8 Hibernated Partition over Ubuntu

I installed Ubuntu alongside Windows-8. Ubuntu works well. Windows-8 is unaccessible because of MBR error. Then, i logged in to Ubuntu and tried to access windows partition (under C:, all of my ...
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1answer
20 views

Right way to completely clean up old kernels in terminal

I have been going through various questions about how to clean up old Linux kernels. They all seem to have different answers and they are old, so someone is bound to say the question is too old and ...
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1answer
28 views

grub recovery after partition deleted

So after getting an error when trying to update my Ubuntu partition I decided to delete it and start over. Did it from windows and now I can't boot into either. Did some research and every thing I ...
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1answer
32 views

Windows Invalidated after GParted partition?

I installed Ubuntu 14.10 on my computer on a tiny 20 GB Partition. I decided this was far too small, so I used GParted, resized the partition to an 80 GB partition, and Reinstalled the GRUB ...
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13 views

After installing Linux, booting up computer shows no bootable device found

However, I can still boot to windows or ubuntu by selecting a specific disk to boot to. It seems that the computer won't go to grub when turned on. Here is some more info: ...
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1answer
26 views

new motherboard, old disk: “Gave up waiting for root device”, dropping to initramfs; grub reinstallation doesn't help [closed]

I want to use a new motherboard with an old disk. The disk has just one partition, with Debian/jessie installed. On booting, Debian is found and begins to start up with usual dmesg output lines. After ...
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1answer
71 views

Grub doesn't appear Ubuntu 14.04 [SOLVED]

I have a problem when I start my computer. The problem is that when I start the computer, grub doesn't appear but it is installed. Firstly, I installed Ubuntu instead of Fedora 21 (I had Windows 8.1 ...
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0answers
37 views

Remove GRUB Bootloader from Mac Yosemite [closed]

I've seen the posts here: Remove Grub Loader from Mac - USB Thumbdrive installation and here: http://hints.macworld.com/article.php?story=20091111185717745 but I've got Yosemite, and in Disk ...
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35 views

adding windows 8 entry in grub [on hold]

i have windows 8 in my hard disk and i installed Kali on a pen drive disk(not live). after installing i could not boot into windows i un-installed Kali but grub is still my boot loader and it does not ...
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0answers
13 views

Disabling IRQ #11

I am kind of a noob with linux. I know simple commands like sudo apt-get and things like that. But I have been having problems with my computer. a lot of times I will start my computer and it will ...
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0answers
24 views

Unable to automatically boot to grub

I am running ubuntu 14.10 in dual-boot with Windows 8.1, and I was having no trouble until I tried testing out TAILS and couldn't find it in grub, so I installed rEFInd. I later tried uninstalling it, ...
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0answers
22 views

Booting from USB sends me to Grub Rescue Mode

I have Ubuntu 14.10 and I followed the instructions here perfectly and I used the BIOS to boot from my USB (F12, InsydeH20) and after a few seconds, it sended me to Grub rescue mode. Whenever I boot ...
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0answers
21 views

Installed Ubuntu on Mac (no dual boot), now am stuck in grub rescue mode

Prior to attempting to totally eliminate OS X from my Macbook Pro, I had had a dual boot through rEFIt. rEFIt gave the option for either OS X or Linux Mint. It worked fine until I updated my OS X to ...
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0answers
22 views

On a Ubuntu PC graphics became slow and jumpy after making changes with GRUB2

On my Ubuntu system all worked well until I created a separate dedicated boot partition and got GRUB2 working on that partition... It boots, but my graphics became slow and jumpy. The resolution is ...
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2answers
25 views

Choosing OS grub screen not displaying

I installed Windows 7 after Ubuntu 14.04. I recovery GRUB, but when I start system the Grub window where I need to choose the OS not display, and Ubuntu loads by default. What did I do wrong?
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0answers
29 views

(GER) Wide font in Ubuntu at Start-up, unreadable/blurry

When I boot my laptop, I see messages that tell me what happens during boot using an unreadable/blurry font. When I change /etc/default/grub and set GRUB_CMDLINE_LINUX_DEFAULT="quiet splash ...
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0answers
34 views

Ubuntu Desktop 14.10 on Lenovo G505s Purple Screen Problem

Alright, I have been on every forum and website I can think of to fix this but with no success. My system specs are as follows: Lenovo G505s- AMD A10-5750M, 16 GB DDR3 RAM, AMD Radeon 8570M 2 GB, ...
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1answer
37 views

After installing xubuntu, I did not get a boot loader, help?

I searched on google and tried the boot repair program that you install on a flashdrive and boot from it to reinstal/fix grub but when I use the program, I get an error that says "The boot of your pc ...
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2answers
43 views

No boot loader is installed in the MBR of /dev/sda

I just did a boot-repair because I can't run windows 8.1 from the grub (I see many options but none works) and I got this result: http://paste.ubuntu.com/9558801/ My question is : Should I care about ...
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0answers
30 views

How to add Windows 7 to grub menu

I have netbook with Windows 7 on the first partition (no 100 mb partition) and a second partition with Ubuntu 14.04 installed from pen drive. The boot manager grub I installed selecting the whole ...
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0answers
9 views

How do I set up necessary partitions when booting from hardrive? [closed]

Here's my issue. The laptop I just bought comes pre-loaded with Zorin OS while im looking to install Elementary os.I need to repartition harddrive I have iso installed on Here are the steps I took. ...
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0answers
7 views

GNU GRUB version 1.99-12ubuntu5 won't stop coming up

Okay, I'm kind of new to using a Ubuntu so I'm not exactly sure what all the controls and commands are but one day I was getting on the Ubuntu and all it displayed was GNU GRUB version ...
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1answer
40 views

Adding Win7 to Ubuntu through Ubuntu dual booting

I really need some step by step help here. I know I need to change the partitions of ubuntu to add my win7 boot up here. However, I have not been able to get this to work right. Problematic in that ...
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0answers
29 views

Fresh install of 14.04 - Gave up waiting for root device

I hope you can help me. I've read many, many questions and solutions to my problem on here, however so far I have been unsuccessful in resolving the issue. The system is a Asrock e350m1, 4GB RAM, ...
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0answers
31 views

Grub does not start anymore after removing a btrfs partition

I'm using Ubuntu 14.10. Consider the following setup: ubuntu@ubuntu:~$ sudo blkid /dev/sdb1: UUID="0dde146f-ebdc-472d-83a2-48104e23cb8f" TYPE="swap" PARTUUID="00061e41-01" /dev/sdb5: ...
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0answers
25 views

Ubuntu not booting (Busybox) **DATA RECOVERY**

I have been using ubuntu for a while now. On one of my laptops (which has a broken battery and needs to be plugged in to work). I had overloaded it, therefore I took the charger out (stupid me) and ...