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 do I debug GRUB_TIMEOUT?

As described here: Grub menu not waiting despite of GRUB_TIMEOUT=10 Adding this line to /etc/default/grub fixes the problem: GRUB_RECORDFAIL_TIMEOUT=10 But why does grub fail in the first place? ...
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9 views

Windows 8 not booting from Grub (Shows Black Screen)

So I've recently installed the latest version of Ubuntu on my computer (as a dual boot) which loads fine from the Grub interface. However, the rest of the Windows 8 options don't happen to load at ...
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1answer
12 views

Unable to boot Ubuntu 14.04 on Acer E3-112 laptop

I recently installed Ubuntu 14.04 64bit on an Acer E11 laptop (model E3-112). The installation was successful. However I cannot boot Ubuntu. It directly boots to windows and does not even shows Grub. ...
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9 views

grub cursor position

after an incident that happened years ago caused by tee, my "down" button didn't work anymore. Now I want to set my cursor position in to the bottom. My Aim is that I can use the up button to choose ...
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11 views

Debian Wheezy ISO install breaks boot for Ubuntu distros

I installed a new Wheezy from an ISO flash drive. All seemed to go well, until I tried to reboot. Wheezy had dropped my password, so I couldn't open it up, and my two Ubuntu installations (I believe ...
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1answer
35 views

windows 7 booting in background but shows the grub screen of UBUNTU 14.04 wallpaper in distorted way

I dual booted my HP Pavilion 15-n012tx (which was pre-installed with Windows 8 pro) to Windows 7 and Ubuntu 14.04 Trusty Tahr. Booting them was fine with no errors. Installed Windows and Ubuntu in ...
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21 views

Windows 7 does not boot after removing Linux [duplicate]

I recently removed ubuntu to install windows 7. However, even if my Windows USB detectes my ssd in order to install my OS in it, it does not boot from this disk after the installation finishes (after ...
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6 views

GRUB not showing on cold boot but on warm boot

I have a duel boot Windows 8 + ubuntu 14.04 (EFI), but what is happening now is I am booted directly to windows when I first start my computer or restart from ubuntu. I can see my grub only when I ...
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1answer
21 views

GRUB cannot find the ISO image on the hard-disk?

I have an old computer with Kubuntu version 10.10. I want to install the latest version and followed the instruction according the post Install Ubuntu from ISO image directly from hard disk of a ...
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15 views

Backup ubuntu completely, reinstall os and then restore it exactly the way it was

I recently got a new graphics card and I want to have windows on my computer to play windows only games in my steam library. I currently have Ubuntu 14.04 install and perfectly configured and has all ...
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1answer
68 views

Install Ubuntu 14.04.2 LTS alongside Windows 8.1 Dual-Boot on RAID Acer S7 question marks installation popup error “???”

I bought a new laptop and wanted to install Ubuntu alongside Windows 8.1 on it. After many an attempt and weeks of troubleshooting installation and booting problems, I finally found a solution for my ...
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2answers
24 views

Help reverting changes to GRUB

Okay, so I tried to use this fix for my blackscreen when going into tty command line sudo sed -i -e 's/#GRUB_TERMINAL/GRUB_TERMINAL/g' /etc/default/grub This did not fix it, but I found something ...
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11 views

Use fdisk -s, can not boot up

First I want to resize partition of my Ubuntu 13.0X, I run three commands: fdisk -l fdisk -s /dev/sda1 reboot -r Then I realize I should copy some important files in system in case losing. But ...
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16 views

Ubuntu keeps putting itself in EFI?

I gave Ubuntu a go today, but I found out it wasn't really my thing. But for some reason, I cannot seem to delete Ubuntu's EFI file (grubx64.efi) as whenever I try to delete it, using methods such as ...
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0answers
10 views

How to make Ubuntu 14 more tolerant of power cut

We are developing an industrial machine running Ubuntu 14, with no keyboard or monitor. We have found that if power is lost during boot then at next boot the boot sequence waits for a keyboard entry ...
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0answers
11 views

After install I got “no such device”, now what do I do? [duplicate]

After installing from a USB stick in a way that would enable either Windows or Ubuntu to boot, I get "error: no such device: " and it puts me into rescue mode. What can I do to get the boot record ...
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1answer
19 views

Migrate root filesystem from btrfs to ext4

I want migrate a Ubuntu installation off of btrfs as root because it frequently hangs and causes out of space errors and I really don't need the snapshots. The partition was created empty and not ...
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0answers
10 views

Cannot boot to Ubuntu, Powercap/SELinux Issue

I am running Ubuntu (well, Lubuntu, really) on my home server, and all was tickety boo until a few days ago, when the OS stopped booting. Not being able to SHH in anymore, I hooked it up to a monitor ...
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1answer
13 views

how to do I force-yes on fsck

I have bunch of headless ubuntu server instruments. When various hardware changes happen sometimes we get this error. I'm guessing it was a motherboard replacement that had a slightly different RTC ...
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0answers
25 views

How to add Windows 8 grub entry?

I've installed Ubuntu 14.04 as a dual boot with Windows 8.1. But my PC directly boots into Ubuntu. That is why I did a boot-repair->recommended repair. But all I got was grub menu with an option to ...
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0answers
21 views

Grub Bootloader installed twice while dual booting ubuntu and windows 8.1

This is an odd situation: I bought a brand new hp desktop that came with windows 8.1 installed. I used the automatic option in the Ubuntu installer labeled "install alongside windows". It all ...
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0answers
24 views

Boot into Busybox instead of Lubuntu

I am using Lubuntu OS on a virtual machine (VMWare Player). Today, my VM was booting into the GNU GRUB version 2.02 instead of Lubuntu as usual. I was following this instructions and now I'm stuck at ...
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2answers
27 views

I upgrade lubuntu 14.04 after upgrade I get ubuntu and fail system

i working with linux long time, but this situation is for me big surprise. Actually running on Lubuntu 14.04 LTS. After writes this command: sudo apt-get upgrade, in terminal all worked right. But ...
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3answers
45 views

GRUB not showing windows 8.1 already installed

Actually there is a similar question on the community before as well but what I am facing is a different problem. Also there the person has not properly posted the status of his grub. Actually I ...
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1answer
24 views

Problems installing and dual booting Ubuntu 12.4, 13.10, and 14.4.1 via pendrivelinux?

All righty, I am a bit new at this, so bear with me. I've been using windows for a long time and have a decent amount of know-how with it's interface, and I decided I wanted to try out some different ...
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5 views

USB GRUB boot HDD -or- The Upgrade parachute

I have a question... I'm upgrading my laptop's HDD to an SSD. Starting basically from scratch (just backing up and partially transfering /home and stuff), but there's software I have installed (such ...
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1answer
23 views

GRUB not installed correctly by ubuntu server manual process?

symptom: can not boot from SSD after installing ubuntu server 14.04. BIOS menu keeps returning back. No dual booting. setup: Lenovo T430s with windows 8 preinstalled. BIOS boot menu supports both ...
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25 views

Dual boot - Ubuntu Live makes Grub disappear - Windows 8.1 with Ubuntu 14.04

I have setup a dual boot (Windows 8.1, Ubuntu 14.04 with LVM) with the Grub menu having Windows as default, working just fine. However, every time I need to boot again from Ubuntu CD live, it messes ...
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0answers
39 views

Can no longer boot after a restart

I was prompted to restart my computer to install updates and when I did, I found myself staring at the grub rescue prompt. I have tried boot-repair, but it gets hung at "purging and installing last ...
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0answers
25 views

I have to go through grub and windows bootloader to get to windows, can i change this?

I got a new SSD,on which i installed Windows 8.1, and had Ubuntu on my second hard drive .Now when I boot up my computer boots to GRUB where I can either boot to Ubuntu or to Windows. If I click ...
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0answers
7 views

grub 1.99-2 does it do timeouts?

Have seen advice to edit /etc/default/grub and run update-grub (I tried to change GRUB_TIMEOUT from 10 to 3). But it looks as if grub is not implementing the timeout, it sits there waiting for me to ...
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0answers
15 views

grub.efi doesn't boot but shim.efi does

I have dual boot(Ubuntu 14.10 with windows8.1) I had got grub rescue>unknown file system and I used boot-repair to solve it. I removed the grub files and boot-repair gave some codes that I ran on ...
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0answers
20 views

How do I remove Grub without a USB or Recovery DVD? [duplicate]

I'm dual booting Ubuntu 14.04 and Windows 7 and I want to know how I can remove Gnu Grub and have it go straight to the default Windows bootloader. I do not have a recovery DVD and the USB drive I'm ...
0
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1answer
22 views

how to remove the Odd “???” outline issue? [closed]

I'm new this thing and not sure what is wrong with the grub thing....every time machine boots up it shows grub but with the "???" outlines...can anyone please tell what I need to do in order to fix ...
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0answers
14 views

REturns to win7 after reboot @ubuntu install

So I thought it be cool to give a try at Ubuntu. Did a clean install first of Win7 onto my new SSD. I than partitioned 40gigs for Ubuntu. I made an USB drive with Ubuntu on it, booted from it. ...
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1answer
40 views

14.04.2: gave up waiting on root device

I've just installed 14.04.2, and after selecting Ubuntu in grub I get dumped to an initramfs shell. The error reads gave up waiting on root device. The device it's trying to mount by UUID, hosting ...
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1answer
40 views

Is there a way to boot into grub on a mac rather then OSX?

I have successfully installed Ubuntu 14.04.2 on a Mac Mini(late 2014).Now I can get to the new installation by pressingAlt > EFI BOOT to get to GRUB and selecting Ubuntu to boot the OS. My question ...
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0answers
17 views

How to get back on windows 8? [duplicate]

I have tried to install Linux Mint, but my laptop doesn't allow it. It is a Toshiba laptop. Firstly I tried to install ubuntu, but it didn't accept the install. Then windows 7, and after that ...
0
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1answer
24 views

ProLiant Microserver Gen8 clean install drops into grub rescue shell

I've just bought a new HP ProLiant MicroServer Gen8 a few days ago, and have been trying to install Ubuntu Server 14.04LTS on it since then, but I'm having an issue where it's not booting after ...
0
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0answers
47 views

Can't boot WIndows 8.1 after using boot-repair-disk [on hold]

I was unable to boot into Ubuntu 14.10 that I recently installed on a 250GB partition on an external hard drive because of some grub errors, so I ran boot-repair, which allowed grub to show up again ...
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2answers
34 views

How to install “plymouth-greeter”?

I'm bored my plymouth, and i would like to change this. I found on the internet nice script. https://launchpad.net/plymouth-greeter When I try install this i can't but it is rly old. I use Ubuntu ...
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1answer
39 views

Black screen after plymouth at ubuntu 14.04 [duplicate]

Recently my Ubuntu 14.04 LTS stopped going further than plymouth. It goes like this: Process BIOS process grub menu ( I choose 1st option called Ubuntu) black screen for couple of seconds plymouth ...
3
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1answer
32 views

GRUB Aesthetics

Quite a while ago, when I was just getting into Linux, I used openSUSE as my distro. One thing I recall was that the boot loader screen (it was what is now called GRUB Legacy) was a lot more pleasant ...
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1answer
33 views

Grub not coming up when laptop starts

I had dual booted my laptop with windows and ubuntu 14.04 and it was running fine only until my windows was infected by virus and so I had to refresh it. After refreshing when I restarted my laptop my ...
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1answer
23 views

Strange text output when booting

In the last few days I've got strange warnings(?) when booting. Furthermore sometimes my notebook doesn't even start ubuntu or grub, then it simply shuts down or UEFI gives me the possibility to boot ...
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0answers
22 views

triple-boot pc: move grub and unify partitions

I have a triple-boot pc with following partitions: sudo fdisk -l Disk /dev/sda: 750.2 GB, 750156374016 bytes Device Boot Start End Blocks Id System /dev/sda1 * ...
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1answer
45 views

How to dual boot between Windows 7 and Ubuntu? [duplicate]

I have installed Windows 7 a couple of years ago, now install Ubuntu for academic purposes, partition the disk and perform other procedures in the installation. But when I restart the computer I can ...
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0answers
33 views

Windows partition encrytped ,unable to boot from grub menu

I added a window 7 entry to 40_custom under /etc/grub.d . The windows entry appears in the grub menu after a grub update , but when I click on the windows option, I get an invalid signature . I used ...
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0answers
22 views

how to fix this error code for ubuntu

Hello everyone i have alot questions to ask first 1) i want to fix this error. This error happen when i was trying to make grub menu always show up when i turn my conputer on and so. The reason why i ...
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0answers
52 views

Can not boot Windows 7 after install Ubuntu 14.04

Hi I am having problems for booting windows in latest ubuntu 64 bit which boots normaly, its a laptop and never had windows installed and uses UEFI and Legacy modes. This is part of the ...