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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2
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1answer
30 views

Do I need a bootloader in my existing hard disk to boot from USB?

The question is aimed at understanding the boot functionality when I try to boot from USB/a pendrive containing an OS. Does it use the bootloader of my existing OS in the HDD when I try to boot from ...
0
votes
1answer
5 views

Boot-sector size is constant?

I read that first sector on any partition needs to be reserved for bootloader, regardless of weather it is used or not. But sector sizes changed from 512 to 4096 bytes. So how much space must really ...
2
votes
1answer
19 views

Partitions deleted, disk cleared, but boot info still there

I've been trying to set up my ThinkPad T420 to boot Windows 10 Technical Preview on disk 0 (/dev/sda) and Ubuntu on disk 1 (/dev/sdb). I've reinstalled many times, and now I'm having trouble booting ...
0
votes
0answers
10 views

Error Message while rebooting Nexus 7 tablet for ubuntu touch

I tried installing Ubuntu touch on my nexus 7 wifi tablet 2013 edition and I am getting this error: "Your phone needs restoring from a PC or service center" could anyone please tell me how to make ...
0
votes
0answers
14 views

how to add win to boot menu

I have 2 hard drives, 1 wit win and 1 with ubuntu how to easly add win to boot menu? I've installed grub customizer, can it be done by that program?
0
votes
0answers
13 views

External HDD Installation on Secure Boot UEFI Device

I wanted to install a standalone version of Ubunto to my external device so I could hook it up to every machine, however after installation my current system does not want to boot from the external ...
0
votes
1answer
22 views

Cant boot OS from USB/DVD after deleting linux partition

After trying in google for almost 2 days I came here to post this. I had Windows and linux in my hard disk. I tried to format linux but mistakenly deleted the partition. It got hung and forcefully ...
1
vote
2answers
4k views

How to use GRUB as default bootloader while dual booting Win7+ubuntu

I installed windows 7 first and then Ubuntu, booted back into windows and used EasyBCD to use the Windows 7 bootloader for dual booting. So when the system is rebooted Windows bootloader comes up ...
1
vote
0answers
24 views

how can I recreate windows 8.1 bootfiles to put on my efi partition? [on hold]

I made a mess of my efi boot partition. I installed Ubuntu gnome 14.10 on a partition on my HDD. During the installation i had manually formatted the efi partition without thinking about that my ...
5
votes
4answers
7k views

Failed to install bootloader

I am trying to install Ubuntu 12.04 by creating a USB Boot Disk. I am using a 500 GB External Hard-drive ("Elements"). I get through the first part of using the start-up disk creator. I select ...
0
votes
1answer
17 views

Restore Windows Installation [duplicate]

I've got the following problem: I had a ssd (sda) with windows 8 installed. Now I added another ssd (sdb) and installed ubuntu 14.10 on it, but I didn't create a efi partition and installed to sda. So ...
0
votes
0answers
23 views

Installing Bootloader on Seperate HDD [closed]

I am trying to install LinuxMint on a seperate HDD while having 2 other HDDs in RAID 0 with windows 8.1. I was told to install the bootloader on the raid 0 HDD's but the windows RAID does not show for ...
0
votes
2answers
20 views

How to set windows (8.1) boot manager as defualt

I would like to set the windows boot manager as the default boot manager instead of grub, could someone please help me out? I've been on google for a while and all i can find are instructions for ...
4
votes
0answers
44 views

How to boot Ubuntu in complete darkness?

Is there a way to load Ubuntu without the splash screen or verbose mode? That means no visual queues or code reporting. Is this possible? Known settings in the grub loader: Verbose Mode ...
-2
votes
1answer
40 views

During installation of Ubuntu it showed Warning! message What can i do for this [closed]

I tried for Ubuntu 10.10 .... it shows warning ! the warning message seems :- /dev/sda contains GPT signatures, indicating that it has a GPT table . However, it does not have a valid fake msdos ...
0
votes
2answers
31 views

Can't boot windows 7 after reininstalling ubuntu 14.04

I had Windows 7 at first and i needed Ubuntu for some project , so dual booted windows 7 alongside Ubuntu and was working perfectly . Then ,got some issues with Ubuntu so reinstalled Ubuntu again . ...
1
vote
2answers
66 views

Grub loader always takes 10 seconds

The default grub loader is always runing 10 second countdown before launching Ubuntu 14.04. This is how it looks in etc/default/grub: GRUB_DEFAULT=0 #GRUB_HIDDEN_TIMEOUT=0 ...
0
votes
1answer
34 views

cant install windows 8 while ubuntu is already installed ! [want to dual boot] [duplicate]

I am having ubuntu 12.04 LTS , I was trying to install windows8 but at the partition selection i got this error " We couldn't create a new partition or locate an existing partition" . But i had ...
4
votes
3answers
8k views

Unable to load Ubuntu after installing Windows

I had Ubuntu 11.10 installed, I installed Windows 7 on another partition but now on booting I cant see dual boot options and Windows 7 is loaded. How can I run Ubuntu now?
0
votes
1answer
210 views

SSD is not showing up in boot loader installation device list while installing ubuntu 14.04 alongside windows

I've windows 7 installed in my SSD and trying to install ubuntu 14.04 in same SSD drive. But when I try to install ubuntu alongside windows it shows only HDD in the drive selection list. If I try to ...
0
votes
0answers
18 views

No Boot options [closed]

I was trying to install Ubuntu from a bootable USB on my medieval Acer desktop, it currently has windows 7 ultimate. The boot settings only show the order of things to boot from; hard drive, LAN, ...
-2
votes
0answers
53 views

error: no such device, unknown filesystem

I decided to install Ubuntu to my external hard drive (partitioned sdc into 3, using one as the swap location, one for installation and one to retain files I really needed to keep, using Hitachi as my ...
0
votes
0answers
33 views

How do I get Xubuntu to automatically boot from startup? [Xubuntu 14.10] [duplicate]

At the moment to boot up my Ubuntu system I have to: Turn on my laptop Hold Shift to start up GRUB Select Ubuntu and press enter Log in I would like to just turn on my laptop and then when Ubuntu ...
0
votes
1answer
29 views

Ubuntu grub in dual boot

I have a Windows 7/Ubuntu 14.04 LTS dual boot and I've been using it with the Windows boot loader for a while. After a while, when I choose Ubuntu in the Windows boot loader I am redirected to the ...
0
votes
0answers
31 views

How to compile a boot loader for 32bit UEFI to be able to boot and install a 32bit Ubuntu OS?

I want to install a 32-bit Ubuntu on a system with a 32-bit UEFI (Bay Trail Intel Atom tablet). How should I proceed? This is not a duplicate of 32-Bit UEFI Boot Support, because this doesn't explain ...
-2
votes
1answer
29 views

How can I RE-ENABLE USB boot …? [duplicate]

I have made a bootable USB. I have made 100s of them before. I have a dual boot pc, Kali and Ubuntu. I want to reinstall Kali from USB (alongside my UBUNTU), but the computer will not boot to USB ...
0
votes
0answers
17 views

How do I temporarily remove grub from mbr? [duplicate]

I have a dual-boot system with Ubuntu 14.04 and Windows 7. Windows 7 has recently released an update that won't install due to grub. I want to restore the windows bootloader so it can install this ...
0
votes
1answer
24 views

Ubuntu and Fedora dual boot

i've successfully dual booted fedora and ubuntu, how do i remove the bootloader from fedora and just use ubuntu's bootloader for both fedora and ubuntu (Ubuntu version 14.01 and Fedora 21 )
21
votes
1answer
18k views

How do I re-run boot loader?

Running sudo apt-get -f install said that The link /vmlinuz.old is a damaged link and: you may need to re-run your boot loader[grub] Here's the full output: user@chrubuntu:~$ sudo apt-get -f ...
0
votes
0answers
14 views

No option to boot to Windows 7 on startup? [duplicate]

I have installed Ubuntu to dual boot with windows 7 on my laptop. However, my laptop boots straight to Ubuntu without giving me a chance to boot to windows 7. Is there a way I could get a choice on ...
1
vote
2answers
3k views

Boot loading problem after Wubi installation of Ubuntu 12.04 on Windows 7

I was new in Ubuntu OS and I was just trying to use wubi windows installer to get a Ubuntu first for hands-on. I followed exactly the same as the instructions and after reboot win7, there is no ...
0
votes
3answers
177 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 ...
0
votes
0answers
24 views

Messed up bootloader and locked out of windows/xubuntu. With live CD I ran boot-repair, now windows works but not ubuntu

My computer directly boots in to Windows?. I ran boot-repair and I can see my Ubuntu partitions are unharmed, what can I do to fix my system boot-loader?
2
votes
1answer
5k views

Ubuntu 12.04 Bootloader failed to install

Sorry about the excessively long question, but I figured giving more information would be better. I recently bought a new desktop for myself, running Windows 7. It has two hard drives, and I wanted ...
3
votes
1answer
4k views

What location to put bootloader, when running multiple drives and partition

I have Win8 on my desktop, where a 120G SSD is used to run windows and some select applications, while I have a 2TB HDD to provide basic file storage and where possible, install applications instead ...
0
votes
0answers
138 views

ADB device offline on ubuntu, can't unlock the bootloader

sudo ./adb reboot bootloader error: device unauthorized. Please check the confirmation dialog on your device. I'm getting the above error while trying to connect my Yureka! to my ubuntu 14.04 ...
0
votes
0answers
12 views

clean new HDD install [duplicate]

I have tried to install Ubuntu to a clean unused hdd on a laptop but am getting no boot drive, is there a different version of Ubuntu I need to download or if am I going about this the wrong way ...
-1
votes
1answer
35 views

System boots directly in to Windows without showing boot-loader option

I have installed Windows 8.1 as dual-boot with Ubuntu 14.xx . dual boot of my system is working fine.... but last night boot-loader is not appearing and the system boots directly in to Windows,My ...
0
votes
1answer
702 views

Recover Windows 7 Boot Loader

I have mistakenly removed Windows 7 boot loader from my primary drive, when I installed Ubuntu 14.04 LTS. I would like to have both OSs on my machine. At this moment, Windows 7 is on SDA2, Ubuntu is ...
0
votes
1answer
44 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 ...
0
votes
0answers
18 views

Boot manager problem

I installed Ubuntu 14.10 along with my Windows 8 pre-installed UEFI OS and it installed correctly. My problem is when I reboot or turn on my system it asks whether go to Ubuntu or Windows 8. But once ...
0
votes
1answer
74 views

How to triple boot windows 7, ubuntu 14.04, and ubuntu 14.10 (keeping windows loader if possible)

I want to be able to play around with drivers and updates without putting my primary work in danger so I want to add ubuntu 14.10 to the possible OSes I can boot into. I already have windows 7 and ...
0
votes
0answers
68 views

i've lost my windows 7 after installing ubuntu 14.02

I've lost my Windows after installing Ubuntu with my flash-drive. When I start my notebook it directs boots in to to Ubuntu ,I also did a boot-repair, but I am unable to dual-boot Ubuntu with Windows ...
0
votes
0answers
30 views

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 ...
0
votes
1answer
36 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, ...
1
vote
2answers
1k views

Installed dual boot Ubuntu 14.04 and Windows 8.1 Can't boot into Windows

I have two internal hard drives; 1 for Windows 8.1 and 1 for storage. I decided to install Ubuntu on the secondary hard drive. One of the guides I used advised me to make a small boot partition in the ...
0
votes
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 ...
1
vote
0answers
75 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 ...
0
votes
2answers
75 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 ...
0
votes
2answers
36k views

How to manually install boot loader?

My attempt to upgrade to 12.04 failed, so I burnt a 12.04 CD, and asked to do a full install, getting rid of all previous OS (I had Windows as well as 11.10). All seemed well until the very end when ...