A bootloader is a small program that gets executed at startup time. The bootloader loads data and other startup process into RAM where they can be executed.

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Windows 8.1 not booting after trying ubuntu 14 on hp 1000

It all started when I made my harddisk drive bootable and uses C (where my windows 8) was installed to boot ubunt, I used unibootein software for it. It worked fine for me every time on start up I ...
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1answer
40 views

Boot in UEFI mode

I have ubuntu 14.10 installed on a pendrive in legacy mode. I can use it to boot my desktop and tablet in legacy mode, but not UEFI. Is there any way to make it bootable in UEFI mode? For example, ...
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1answer
80 views

Bootchart and how to optimize boot time

I have spent some time researching how to decrease my boot time. I made several changes to my grub boot parameters. However I could really use some help to understanding what else I could do. I spent ...
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2answers
34 views

cant boot after opening 2nd partition on hard drive

have ubuntu 14 and opened another partition on hard drive, i checked the box making this partition boot able and restarted computer, now can't get computer to boot any ideas how to fix? have tried ...
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79 views

Booting Ubuntu from USB

I have tried a persistent installation of Ubuntu 14.10 on my PNY 32GB USB2.0 to use as a portable OS to boot my PCs. Everything is alright. I can boot my two PCs with the flash drive, however, as ...
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3answers
235 views

PC does not boot into Windows, but Ubuntu still works well; how to recover?

I installed 7 operating systems in my PC. All worked very well. (Ubuntu 11, Ubuntu 14, EduBoss, Redhat6, Nodezero, Windows 8, Win 7). I frequently used Windows 8 and Ubuntu 14 last 6-7 months, I enjoy ...
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29 views

How to fix Grub2 not viewing all OS on a Quad-Boot system?

I have quad-boot system set up right now for my Computer Engineering Class (Highschool). I have MS DOS, Windows XP and Ubuntu installed. Each individual operating system (on it's own partition) works ...
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18 views

device for boot loader

I have a dual boot system (ubuntu 14.04 + windows 8.1).I was trying to install ubuntu on my usb and while installing for option device for boot loader - I selected usb .And now I can't get grub menu ...
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1answer
28 views

How to make changes in bootloader?

Hi I have an assignment to complete and my teacher has asked me to make changes in my boot-loader so that when my system boots there is an option of "Welcome Sarah". I have dual boot set up in my ...
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2answers
96 views

Install Ubuntu on UEFI without Windows or Boot Loader

I have a Gateway netbook that has already been fully wiped with nothing on the hard drive. There is no Legacy option in bios and the only thing I can boot from the USB is a Gparted disk utilizing ...
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39 views

I installed Ubuntu 14.04 LTS alongside Windows 8.1 (With UEFI) and I am unable to boot into Ubuntu [duplicate]

I have recently installed Ubuntu 14.04 LTS on my laptop alongside Windows 8.1. My laptop came pre-installed with Windows 8, thus it has UEFI instead of BIOS. I have tried booting with secure boot and ...
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37 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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1answer
105 views

Dual boot WIndows 8.1/Ubuntu 14.04

OS:Windows 8.1 64 bit. Secure boot:Disabled. Boot mode:Uefi I wanted to install Ubuntu 14.04 64 bit,so i will be able to dualboot.I burned the .iso image to a usb flash drive and run it.Everything ...
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0answers
55 views

Minor problem with Grub entry for Windows 8.1 - Only Windows Boot Manager shows

I have done the seemingly impossible. I've installed Ubuntu 14.04.1 on a machine that came with Windows 8.1 pre-installed. Yes, it took some tweaking. But I finally got Grub to load up when my ...
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1answer
496 views

Bootloader location, dual boot Ubuntu 14.10 & Kubuntu 15.04

I am currently running Ubuntu 14.10 on my laptop. I dual boot with Windows 8.1, and now I would like to install Kubuntu 15.04 alongside all this to see if KDE Plasma 5.2 + SDDM works with nvidia-prime ...
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1answer
91 views

After messing with EasyBCD no entry in Boot Manager

I installed BURG and before I had Easy BCD in my MBR, Everything fine only problem when picking Windows to boot the EasyBCD Windows Boot Manager showed up. So I booted to Windows removed all entries ...
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0answers
74 views

How to repair grub to work with multiple hard drives?

On my computer I have multiple hard drives. One of them has Ubuntu 14.10 and the other has Windows 8.1. I messed up my boot loader and know only Ubuntu appears in the grub list. Windows 8.1 is on the ...
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174 views

Installation failed ! Exit code: 512 when attempting to create WINDOWS 7 USB Boot DIsk

I have read all the "code 512" threads and followed each suggestion to the letter with no success. Nothing changes after each attempt, I still get the following despite having tried all the ...
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1answer
60 views

Restoring the bootloader and login screen of Vanilla Ubuntu after installing Ubuntu Studio

I have looked at many similar questions for a while, but I've been so far unsuccessful. I have recently installed Ubuntu Studio after installing Vanilla Ubuntu 14.04, and I am quite new to Ubuntu, ...
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0answers
24 views

Invalid reference in boot sector

newbie Ubuntu user's here. Don't even ask me how I managed to do one thing hereinafter referred. So, I have Vista installed on my computer. After I installed Ubuntu, I couldn't boot to Windows ...
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2answers
64 views

uninstall ubuntu [duplicate]

I am trying to uninstall ubuntu to install windows. when I tried to boot it is taking me to grub prompt. is there any other ways to boot without using grub or if using grub is compulsory then what is ...
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54 views

AppArmor on BeagleBoard Black (and probably other ARMv7 devices)

I've installed Ubuntu onto my BeagleBoard, using the instructions at http://www.elinux.org/BeagleBoardUbuntu . This runs the ARM version of Ubuntu 14.04. This all went to plan and it worked, and I ...
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162 views

Too many UEFI Boot entries ATA HDD, ATA HDD1, ATAPI CD1 ATAPI CD2

Windows 8.1 and Ubuntu 14.04 dual UEFI boot. My notebook only has one disk device. The Grub 2 entries are normal with only Windows and Ubuntu entries. However, when entering BIOS setting, I can see ...
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70 views

Is this a good way to dualboot Kubuntu with Windows 7 (legacy)

I have just bought a new computer pre-installed with 64 bit Windows 7 Home Premium (Service Pack 1) on which I wish to install Kubuntu for dual boot. Installing dual boot was easy on my last computer, ...
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65 views

/boot partition problem when installing Ubuntu

The partition table format in use on your disks normally requires you to create a separate partition for boot loader code. This partition should be marked for use as "EFI boot partition" and should ...
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43 views

Change from GRUB

I am dual booting Ubuntu and Windows 7. At start up, I can choose between the two in the GRUB menu. The menu is Ugly and doesn't allow me to do much like booting windows in safe mode. How do I ...
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1answer
196 views

0xc000000f error when starting Windows from Grub

Recently I corrected the dual boot by re-installing the grub bootloader. I did that by first adding an entry pointing to Linux in easyBCD settings. Then, when I restarted the computer it showed ...
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1answer
51 views

unable to boot ubuntu after refreshing windows 8 [duplicate]

Ubuntu was installed in disk H and windows 8 in disk C. Now, I refreshed windows 8 and I am not able to get the option to boot to ubuntu when I start my laptop.
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1answer
55 views

how to boot from linux mini iso to first hard drive

My Problem I'd like to know how to boot in to first hard drive when using a custom txt.cfg for isolinux while using the official minimal Iso from Ubuntu. I'm asking because VirtualBox has a bug and ...
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204 views

Problem with installation of Ubuntu on HP Probook 4540s?

Please can someone help me to install Ubuntu on HP Probook 4540s? I have been trying this for the last 2-3 days, tried every option given on the net, but still my computer directly boots into Windows ...
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1answer
28 views

Question about installation: Does Re-installing ubuntu over previous Ubuntu partition delete files?

I installed windows 8,1 and I think the bootloader got messed up and I tried the "check disk for errors" when you first boot the installer and it fixed them, but ubuntu wouldn't start. I have the try ...
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1answer
101 views

Laptop doesn't boot, fails loading the GRUB bootloader!

I-m facing a very annoiyng issue with my laptop that has a dual boot system with Windows 7 and Ubuntu 12.04. Since I don't know why the GRUB bootloader stopped to work and the laptop can't load. I'm ...
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2answers
46 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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2answers
181 views

Installing Ubuntu 14.10 and window Installation type

I am installing Ubuntu and am stuck at one window that is called "Installation type" I have 3 partitions on my hard disk: 80 GB NTFS, 140 GB NTFS and 15 GB EXT4 and want to install Ubuntu on the 3rd ...
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1answer
189 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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92 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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2answers
659 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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129 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
45 views

Ubuntu 12.04 server installation fails bootloader cannot be installed

I have been trying to install the server edition on a DELL Inspiron Laptop (1564) and it fails at the grub install boot loader step. Ubuntu 10.04 is installed without any problem though. I'm ...
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2answers
831 views

How to install multiple Linux Distros and Windows 8 on UEFI?

I want to install Windows 8 + Ubuntu 14.04 for daily use + Ubuntu Studio for audio production. The method I've followed is to install W8 in the clean disk, then shrink the Windows personal data ...
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2answers
173 views

No option to boot windows after installing ubuntu

I already have windows installed and I just installed Ubuntu and I was expecting that it will ask me which OS to boot after startup but it didn't. I refer the link but didn't work Windows 7 not ...
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2answers
268 views

Windows 8 dual-boot: bootloader problem (grub)

I currently have a dual-boot system with Windows 8 and Ubuntu 14.04, on separate hard disks. I have installed the Grub bootloader using the Boot-Repair tool; however, it seems that whenever I boot ...
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2answers
1k views

Install Ubuntu 14.04.1 LTS without losing Windows 7 bootloader

I want to install Ubuntu 14.04.1 LTS alongside with Windows 7. But there is one issue that if I install Ubuntu, I will lose Windows 7 bootloader and it will replace GRUB bootloader instead of ...
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0answers
19 views

How to prevent Ubuntu from installing a bootloader? [duplicate]

I want to know if it is possible to prevent ubuntu from installing a bootloader in UEFI install mode as to use gummiboot, my current boot manager which works just great for Arch. My objective would ...
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0answers
83 views

Ubuntu GNOME on a USB 3.0 thumb drive: GRUB cannot be installed

I previously installed Ubuntu GNOME just fine on a USB 2.0 drive with the installation wizard, just like you would on a hard drive. I just bought a USB 3.0 16GB drive so that I could run it at a ...
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170 views

Black screen ubuntu server 14.04 after install

i had install ubuntu 14.04 server on my pc using bootable usb. once i installed and try to reboot. server doesn't boot up. it is when i plugged in the usb drive until it boots up.
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2answers
43 views

System Could not boot from harddisk after installing ubuntu

I need some help here, i wanted to install Ubuntu on my laptop which have a 1TB storage and only 1 partition(C:) running windows 8.1, so i burnt the ISO file for Ubuntu to a USB device and I installed ...
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2answers
189 views

ubuntu bootloader doesn't detect window 8

After installing ubuntu, using something else option and installing it on a different disk than windows 8 , I starting my computer and ubuntu loaded without any boot loader. So I searched in internet ...
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1answer
39 views

How to boot compressed image

I've made a single .img. It's a minimal Ubuntu which includes a rootfs and various installs. A kernel and kernel modules are installed. I'd like to compress my .img and have the bootloader load ...
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2answers
114 views

Can't install Ubuntu 14.04.01 on Windows 8.1

I used Universal USB Installer to create a live boot on a USB drive, but when I try to boot from the drive, I don't get the installation menu, just a black screen to enter commands on. I disabled ...