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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HDD boot repair

I just used boot-repair tool in Ubuntu and I applied MBR option … and when I reboot my laptop, it won't boot hard drive. A black screen appears with a cursor beeping and my whole system stucks there … ...
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No bootable device found in Ubuntu 14.04 with LVM encription (boot-repair-log attached)

Everything goes ok until the computer was blocked, I have restarted it and seen the errror No bootable device found With boot repair disk https://sourceforge.net/p/boot-repair-cd/home/Home/ on a live ...
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41 views

How Do I Change the Boot Loader to Load Ubuntu on a Different Hard Drive in Windows 10?

I've just done a successful installation of Ubuntu onto a brand new hard drive, but now I don't know how to load the Ubuntu OS. It does not show up when I boot my computer in the "Choose an Operating ...
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96 views

how to speed Ubuntu 16.04 LTS bootloading time

Good day fellas, I recently replaced windows 10 with Ubuntu 16.04 LTS OS, now it is taking taking too long to boot. Below is the link I got after running boot-repair recommended settings http://paste2....
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1answer
124 views

Cannot boot with EFI

I was having problems with repairing my boot loader (grub). My GParted config looked like: I installed another Ubuntu to the free space which restored my grub. But when booting into my old partition,...
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13 views

Access to hard-drive when machine won't boot

Recently I tried to downgrade my kernel (from 3.13 to 2.6.24), and I made sure that the 2.6.24 kernel compiled and installed without any errors. I also updated the grub file to boot with the newly ...
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1answer
87 views

Restore Windows loader after deleting partition

I am just install Ubuntu 16.04 alongside Windows 8.1, but while installing i deleted Windows reserved partition. I installed Ubuntu in UEFI mode, but i not sure, that windows installed in UEFI. ...
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2answers
101 views

How to reinstall GRUB bootloader for 14.04 after upgrading to Windows 10 [duplicate]

What do I do to reinstall the GRUB boot-loader, since I heard the Windows boot-loader overwrites GRUB.
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52 views

Ubuntu is not booting after re-installation of Windows in dual boot system

My laptop was dual booted - Windows 7 (32 bit) along with Ubuntu 14.04 (32 bit) LTS - and I used it without any problems. Due to Windows performance issues I had to format windows primary C:\ ...
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2answers
518 views

Grub Failing to install - Installation crashes

I have tried multiple times to install Ubuntu 16.04 LTS on my Mac Book Pro 2011 with a TakeMS SSD and a Hitachi HDD. The problem is though that it copy's files and that fine but as soon as it gets to ...
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1answer
134 views

Can't boot Windows 7 from USB, GRUB still there

I need to install Win 7 on a computer that previously had Ubuntu 14.04 installed. I created a bootable USB with the Windows 7 ISO on it, but I can't boot from it. From the BIOS/UEFI (not sure) I ...
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22 views

Stop Ubuntu on Macbook from booting into OS X from external drive

I have Ubuntu (Lubuntu) installed on a MacBook which has two external hard drives connected to it. One of the partitions on one of those drives is a bootable backup of an OS X machine. When I reboot ...
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1answer
56 views

Cannot boot to Windows 10 after failed installation of Ubuntu!

I was trying to install Linux for a Linux course and now I am stuck. First of all Ubuntu doesn't get installed completely. So every time I restart the computer it asks me if I want to install Ubuntu ...
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41 views

Grub rescue mode, bios in order, won't boot from window 7 recovery CD nor Ubuntu 14.04 live cd, nor usb key

Alright. I have (had) an Acer Aspire 4739z. Dual boot Windows 7 and Ubuntu 14.04 I have a grub rescue mode problem since booting in Rescue Mode (by mistake of course). And now the fun starts. My ...
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1answer
31 views

grub error when booting ubuntu

I have 2 hard drives on my server and i have previously installed CentOS on one of the hard drives(not sure which but i am guessing the second) I install fresh Ubuntu 14.04LTS on the first one i ...
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1answer
46 views

Questions for Dual Booting Ubuntu 14.04 + Win10 with Multiple Hard Drives

I'm trying to dual boot Ubuntu 14.04 onto my desktop that's currently running Win10. I've only dual booted on machines with a singular HDD years ago, but now I have a small SSD (for my Win10 OS and ...
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1answer
46 views

Installing Ubuntu over existing windows 7?

I already got windows 7 installed on my laptop with 3 drives C: D: E: and I also wanted to install Ubuntu on the same drive C: and make it a dual boot. How to do it ? is it possible ? And will I ...
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21 views

Ubuntu's boot loader is signed by a key in order to boot in secure boot mode. Is this key embedded in all UEFI firmware computers by default?

Most new computers are secure boot locked and it is not possible to add your own custom key.
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1answer
25 views

Unable to dual boot windows 8.1 with ubuntu 14.04

I m new to this forum and to linux. I have windows 8.1 pre-installed in my HP 15-r007tx and I wanna make it dual boot with ubuntu. But last I tried I finished installing ubuntu based on a few videos ...
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1answer
189 views

Removing Ubuntu with Windows 10 [duplicate]

I have ubuntu installed (dual-boot with Windows 10) on my laptop and my PC, but I noticed that I only really use it on my laptop, so I decided to remove it from my PC and attempt to switch back to the ...
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1answer
40 views

GNU GRUB Ubuntu option gone!

Hi there I seem to have a serious problem that google wasn't able to help me with. I'm a novice with GNU systems. I was clearing up some space on my boot folder (which of course what I think went ...
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21 views

How to solve the error starting version 219?

My Ubuntu 15.04 is showing "starting version 219". I can't login to my system. What is this? Is this a bug of Ubuntu? How do I can solve this issue? Please help me.
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26 views

Creating boot partitions on multiple disks

I'm trying to get some redundancy with RAID1 on my Ubuntu Server box. I've made some good progress using the install wizard but I'm stuck on the following: >> lsblk NAME MAJ:...
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1answer
162 views

How to remove Windows 7 (loader) without losing data?

I've installed Ubuntu 15.10 in my laptop after removing Windows 7. Even after removing Windows 7 completely during Ubuntu installation I always get an option of Windows 7(loader) & other Ubuntu ...
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23 views

Win 8.1 UEFI + External HDD Ubuntu - Bootloader directory

I would like to install Ubuntu 14 on an external Drive for use alongside my UEFI Windows 8.1 System, however I am unsure of where exactly to install GRUB. The external hard drive Im using is also ...
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29 views

Boot time is too long after uninstall Ubuntu from computer

I have 3 OS on my laptop Window 10,Ubuntu 14.04 and Ubuntu Mate.. I uninstalled Ubuntu 14.04 from the computer after that ubuntu mate's boot time takes nearly 5 minutes.. Before I uninstall ubuntu 14....
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1answer
186 views

Recover windows 10 EFI Boot from dual boot with ubuntu

I made my window 10 system system in dual boot with ubuntu. I would like to remove ubuntu and install it in virtual-box within windows. I am afraid to remove ubuntu partions fearing windows may not ...
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0answers
42 views

Kernel problem, how to downgrade

I am using Ubuntu 15.10. uname -r 4.2.0.30-generic. But this kernel is installed partially with errors and my boot loader got default updated to that. I have Linux image 4.2.0.16,4.2.0.27,4.2.0.30,...
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1answer
36 views

Kubuntu installer will not offer uefi option but did once

Where to install boot loader. Kubuntu installer offered uefi...worked. Now after crssh on reinstalling only offers reserved BIOS area for grub but then won't boot - no drive shows
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2answers
242 views

Having trouble installing ubuntu alongside windows 10

I want to install Ubuntu alongside Windows 10, but I keep running into trouble. First I tried to create a bootable USB drive, to test Ubuntu, and then install it. While creating the bootable drive ...
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79 views

How to dualboot Ubuntu and Windows (as default) with minimal delay on boot?

I know there are some other questions here similar to mine, but i think my problem is a little bit different. So I currently have Windows 10 as my only OS, and I want to install Ubuntu on dual boot; ...
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2answers
364 views

Computer won't boot without external hard drive (now won't boot at all “Boot Device Not Found”)

The hardware involved is a HP Spectre x360 laptop (running windows 10 - at least it was :[ ) and 1TB WD Passport Ultra External Hard drive. Scenario: I am attempting to create a external hard drive ...
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27 views

Cannot install Lubuntu from pendrive

I cannot install Lubuntu as the second system (on the same hard disk) next to Ubuntu 14.04. I've tried to create bootable pendrive by using unetbootin and when I`m trying to install OS, my laptop send ...
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0answers
24 views

Cant find the correct filesystem to recover ubuntu bootloader

I have windows 10 and Ubuntu 14.04 as dualboot on my laptop. I deleted bootloader by mistake from disk management. and i am on the grub rescue. When i tried ls command i get this: (hd0) (hd0,...
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1answer
340 views

Howto setup seperate ssd for EFI partition and bootloader for dualboot linux and macosx

Im currently struggling with new hardware and installing ubuntu in a first step on it (16.04 daily builds), where macosx will follow. Hardware: Supermicro x10DAi dual xeon firmware: UEFI The ...
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2answers
55 views

Install Ubuntu with other linux distributions on same machine

I have brand new machine. I want to install Ubuntu and one more Linux distributions on same machine. When the machine is up I want to have the option to choose which Linux to load. Is it possible? ...
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1answer
107 views

How to restore boot menu (UEFI)?

I had Windows and Ubuntu both installed in UEFI mode. Then I installed 32-bit Ubuntu (there was no UEFI partition in the list of partition types, so I just installed it as is without specifying UEFI ...
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0answers
44 views

How to create a Live DVD/USB without option to install

I have developed a custom distribution based on Ubuntu LTS 14.x intended to introduce non-technical users to using Linux on an existing computer, but do not want to risk them choosing an installation ...
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1answer
243 views

Meizu Pro 5 Ubuntu Touch has a locked boot-loader

I asked the Meizu support responsible for the Ubuntu Touch, about shipping, taxes and if the bootloader was locked. The information I received is surprising to me. Can someone else confirm this, ...
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78 views

Windows 7 boot loader overwritten by Ubuntu

I have Windows 7 installed on my PC (C:, D:, E: and System Reserved). I've tried to install Ubuntu on D:. when I try with live USB, it showed me only 2 options erase all disk with 2 check boxes (...
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1answer
42 views

Windows Dualboot Bootloader Problem

Being new to Ubuntu, for the past two days I am having trouble getting my Ubuntu and Windows dualboot to work together. The setup is as follows: Partition Setup /dev/sda2 is where I want Ubuntu to ...
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1answer
87 views

My ubuntu laptop is not booting

I have Ubuntu on my laptop and I can't boot to the os in the middle of the booting process I got a message saying [ 0.079681] Ignoring BGRT: invalid status 0 (expected 1) fsck from util-linux 2....
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1answer
21 views

Ubuntu can't be uninstalled since all partitions are merged

All the drives are merged in my laptop with Ubuntu installed. Now it doesn't reads the Windows installer and it has set default in OS manager so even after changing order of uefi boot, it doesn't ...
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2answers
78 views

Windows 10 Loads Up Directly, No GRUB Menu

I was trying to get rid of that GRUB bootloader and wanted to use the Windows 10 bootloader. In order to do that, I did this: I opened CMD and then put: bcdboot C:\Windows in it. Now, the problem I'...
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1answer
58 views

Ubnuntu does not get start after installing tomcat

I have installed tomcat 8 and shutdown my laptop,when I start it after login It doesn't show anything.Right click is also disable and only splash screen appear with homepaper.I'm using 15.10 ubuntu....
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0answers
38 views

Unable to install new OS after installing Lubuntu 14.04

I have install Lubuntu 14.04 in my machine, but now I want to dual boot my system. I am not able to install/boot any other OS including Windows-XP, Linux-Mint, Ubuntu 9.10, Lubuntu 14.03 etc. using ...
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1answer
58 views

Grub 2 Problem - Removal not working!

Hello everyone, here is my problem When I boot up my computer, I go straight into Grub 2. I know that if I type exit it will quit Grub 2. But for some reason it goes back into Grub 2, and I type the ...
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1answer
46 views

Ubuntu and windows on dual hard drives

I had windows 10 installed on a hard drive then I used my laptop to install Ubuntu 15.10 on my other hard drive because I was having problems installing it on my desktop. To get into Linux I have to ...
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0answers
18 views

Ubuntu boot takes multiple restart?

I have recently installed Ubuntu 15.10 and I am unable to start my system in one go(I need to forcefully shutdown and then restart multiple time to get grub screen). I google it and got to know that ...
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1answer
40 views

cannot read from USB Stick

Installing on Lenovo Z580, during boot up process the bios menu shows that the USB Stick is detected but on selecting it it opens Windows 8 which is originally my operating system. i have tried ...