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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Not getting logged in after upgrade to Ubuntu 14.04

Just after I upgraded my laptop (Ubuntu) Now it was getting console on booting. I used shift to select previous version of kernel. And its going to login screen ,but still after valid password its ...
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45 views

After boot repair, Windows does not boot

Following are the steps till I purchased my computer Installed windows 7 Installed Ubuntu There was no boot option, and ubuntu automatically boot, leaving me no option to boot my windows I used ...
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13 views

Windows 7 plus Mint plus Ubuntu bootloader issue

I recently installed a new ssd which has windows 7 on it. On another drive I installed Mint and it works fine the bootloader loads up and gives me a choice of mint or windows 7. I then installed ...
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22 views

Bootloader issue - How do I completely remove Linux from my system? fully detailed description

The goal was to successfully install Windows 10 upgrade. System configuration : Dell Inspiron 3537, i5 4th gen processor, 6GB RAM, 1TB HDD, 2GB AMD Graphics. Before install : I have a Dual-boot ...
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59 views

Installed Windows 10 and Ubuntu 14

When my computer boots up,it goes directly into windows 10.How do I make it to ask me how to load which OS.Since I'm new to this,treat me as a toddler.I don't know most of the technical terms.Please ...
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3answers
49 views

Cannot boot laptop after copying partitions to new HDD

I changed the HDD of my laptop for an SSD. It is a Dell XPS 15, that came with Windows, on which I installed Ubuntu, and has been working for 3 years. The HDD was setup with several partitions, ...
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2answers
206 views

Add Windows 10 to GRUB OS list

I recently got a computer from school. It came with Windows 8.1 installed. I then installed another copy of Windows 8.1 (so it would use the built-in Windows Pro license) and upgraded it to Windows ...
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1answer
36 views

Nothing boots (previously Windows 7 / lubuntu)

I tried to install xubuntu on a machine that had Windows 7 alongside lubuntu The error I made is that I clicked by error erasing everything and install xubuntu. But I stopped at the next window that ...
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67 views

Fix Bootloader and delete Ubuntu, Windows 10?

First of all I'm sorry to say goodbye but I need to remove it. My problem is, I cannot fix the bootloader and I always get the GNU GRUB everytime I start my computer (GNU GRUB version ...
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1answer
32 views

How to make a UEFI compatble ISO with grub-mkrescue?

I have been following this guide to produce a customized version of Ubuntu. As of now, the structure of the CD is complete. I just have to generate a bootable ISO image with the command: sudo ...
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1answer
19 views

GNU Grub not loading by default

I have dual booted my machine. First I had installed Windows 8.1, and then I have installed Ubuntu 14.04.03 version. I had switched off secured boot and power boot options . Now when I boot my ...
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2answers
109 views

Regarding Enable & Diasable of Dual Boot Option?

I'm using Dual Boot hence while booting I'm supposed to click an option as shown below (Ex:) So, Tell me how to disable the options of dual boot i.e system should boot directly without options as ...
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2answers
386 views

grub can't launch Windows 10 after Ubuntu 14.04 LTS installation

I looked at some of the other threads with similar issues but none were having the exact issue I have and, furthermore, I found none with a satisfactory answer. So I figured I'd post my own. I ...
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3answers
46 views

How to remotely control which OS Grub boots?

Consider the following dual-boot setup: Grub is installed to /dev/sda /dev/sda1 is mounted as /boot /dev/sda6 is mounted as / Windows 10 is installed to /dev/sdb2 As it stands now, Grub selects ...
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0answers
34 views

Configure Grub2 to boot into windows 10

I have installed Linux and have windows 10 in a partition as mentioned below plz help me configure the same Contents of 41_custom file in /etc/grub.d/ #!/bin/sh cat <<EOF if [ -f ...
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1answer
39 views

Grub2 is not being installed within installation of Ubuntun 14.04.3 and Win 10 set before

hope you can help a beginner. I recently upgraded Windows 7 to Windows 10. After that I downloaded Ubuntu 14.04.3 and successfully installed it; For that I made several partitions; One for Windows 10 ...
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2answers
75 views

Dual booting windows 8.1 and ubuntu, windows automatically loads

So I recently attempted dual booting Ubuntu with Windows 8.1 on a HP Pavilion G6. So far I've gotten everything working except whenever I turn on or restart my computer, it loads straight into ...
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1answer
49 views

Should I re-install GRUB when installing new linux distro?

I already have Windows 8.1 Pro and Ubuntu running on my system. When I boot, I use the Grub bootloader to select my operating system. I'm planning to install a new Linux distro (kali 2.0), if on the ...
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19 views

After using boot repair, my hdd couldn't be detected By uefi

after i install boot repair the result is this http://paste.ubuntu.com/12077955/ Now my UEFI couldn't recognize my hdd Please help, thanx
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1answer
39 views

Installed grub on flashdrive

I downloaded Ubuntu 14.04 on my flash and then deleted windows as I ran Ubuntu on my USB drive. I found out after research I downloaded the grub on my USB drive. I tried basic commands to fix it and ...
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0answers
28 views

Windows took my Grub [duplicate]

I recently installed Ubuntu 15.04 on my pc on one partition. Later, on the other partition I installed a Windows OS. Now, when I turn on my PC the are no boot options. GRUB is gone. I tried booting ...
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1answer
25 views

How to dual boot Kubuntu without booting into GRUB when I turn on my computer?

What I want to happen is when I turn on my computer it boots into Windows 10 by default, and if I want to go into Kubuntu, I go into BIOS and choose to boot it. Is this possible without having Linux ...
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77 views

Grub Problems with Dual-Boot Windows 10

I just got a new laptop (Lenovo) with a preinstalled Windows 8.1. I did the upgrade to Windows 10, created two partitions (Windows and Data)and installed Ubuntu 14.04.3 on the remaining space from a ...
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1answer
57 views

Boot linux on external hard disk - Send Grub Rescue

installed Ubuntu 14.04 in a external hard disk because in the internal hard disk I have Windows 10 and very low space. When I try to boot the external HD, sends the Grub Recovery. I saw few ...
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1answer
48 views

Problems with booting on recovery mode [closed]

I want to access my recovery mode because I have problems with my nvidia drivers. But I don't get a chance to use my shift key because I have a black screen for 10 seconds (when I boot my pc) and the ...
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1answer
47 views

Computer restarts over and over after upgrade from ubuntu 14.04 to ubuntu 14.10 on dualboot windows/ubuntu [closed]

I had a dualboot Ubuntu 14.04 and Windows 10 (Windows 8 before upgrade). I decided to upgrade my Ubuntu to 15.04, so I needed to Ubuntu 14.10 and after to Ubuntu 15.04. But after I've upgraded to ...
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34 views

Failed boot after accidentally deleting kernels?

I accidentally deleted kernels while trying to clear more space in the boot partition (I couldn't update new kernels due to lack of space). Now I am unable to boot my Ubuntu Linux (14.04). I tried the ...
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1answer
29 views

How to hide the whole Desktop with a permanent fullscreen image (above)?

I use Ubuntu to make a kinda hotSpot (wifi). I dont want anyone (thief or hacker) to be able to navigate into the system by pluggin-in keyboard-mouse-screen. (Unless me or my collaborators). At boot ...
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2answers
33 views

Downloaded Ubuntu, no dual boot, can't access Windows

Basically I installed Ubuntu following the partition tutorial and everything seems fine except I seemed to have lost Windows. I can still see it in GParted, but there is no dual boot menu + I can't ...
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0answers
21 views

Hot to edit /boot/grub/grub.cfg to protect changes on grub

How would I specifically edit that file from preventing people from making changes in grub boot menu. I need it to where it needs a password every time some one tries to make a change to the menu.
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69 views

Windows10 / Ubuntu 15.04 — Grub Rescue

I seem to be having a bit of an issue booting into either of my OS's. I went ahead and upgraded from Windows 8.1 to 10, and upon restarting, something happened with grub. Here's what I've tried to ...
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0answers
37 views

Error while installing ubuntu 15.04, unable to install grub-efi-amd64-signed

I tried to install Ubuntu 15.04 in my HP lap which has windows 8 OS. While installing, it showed an error that it was unable to install grub-efi-amd64-signed and it also mentioned that the above ...
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0answers
42 views

Help booting ubuntu iso from the hard drive

I am currently using Windows 7. I downloaded the ubuntu's iso file from the official site. I don't currently have a pendrive and my laptop doesn't have any CD/DVD drive either. I found a tutorial ...
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2answers
52 views

How do I install grub for UEFI in legacy mode?

My laptop has no CD-ROM. So I use YUMI to create a bootable USB stick, which seems not support UEFI. I use legacy mode boot from USB and finish install ubuntu(Only one OS). Now I want to switch to ...
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0answers
24 views

Grub rescue No such partition and all partition tell me unkown filesystem

I have duel boot Win7 and ubuntu 15 , and I have deleted one partition 2GB and when I have restarted my pc and its tell me No such partition grub rescue, I have tried this step Set prefix=(hd0,msdos ...
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0answers
90 views

Windows 10 upgrade, now no partition will boot

I have a multi-boot computer (windows 8, Ubuntu, and elementary OS). Two days ago I tried to upgrade windows 8 to windows 10. When it got done and restarted it went to grub rescue. I tried the whole ...
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0answers
21 views

How to prevent people from using 'ro recovery nomodeset' [duplicate]

I really need a way to protect my grub menu from being attack by students who know to go to grub menu press 'e' and then change splash to ro recovery nomodeset. How do I protect that page from ...
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0answers
50 views

Would like to install Windows 8.1 (dual boot with 15.04) , but need to shrink encrypted partition first

Disgusted by MS's Windows 10 privacy problems, I decided to give Ubuntu another go. I backed up, formatted the drive, and installed Ubuntu 15.04 only. I love it, it's great, but I do need a Windows ...
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1answer
44 views

how I can rearrange my partitions?

I need help with this problem! I would like to install windows and ubuntu in the same hard disk. My plan was to have Windows on a partition, install ubuntu on another partition, one for ubuntu files ...
2
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1answer
78 views

Boot folder on external USB pendrive, how to boot to?

My machine is LUKS-encrypted and boot works a charm (asking the passphrase at launch). I want to use a keyfile on a USB pendrive, thus the user has a dongle that the user must plug to launch Linux ...
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1answer
28 views

I install ubuntu 14.04 and get grub start but my windows 8.1 wont show up in my grub start? [closed]

I updated the grub start through the ubuntu bios pressing f8 and however windows is not showing up in the grub menu.......... I installed the operating system doing a swap and reserve for bios ...
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1answer
21 views

How to boot into a USB and reinstall Ubuntu on Ubuntu having disk lock?

I had dual booted windows 8.1 and Ubuntu. Later i removed windows 8.1 and installed Ubuntu LTS 14.04 . While installing Ubuntu, i selected to encrypt the disk and used LVM. Now i want to reinstall ...
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2answers
199 views

Grub menu with Windows 10 and Ubuntu 14.04

I have Ubuntu 14.04 and Windows 10 both successfully installed and operational. However, I can not get the grub menu to appear correctly and I've tried using boot repair multiple times. I've done boot ...
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0answers
49 views

Windows 10/Ubuntu 14.04 Dualboot issue

I've tried, I've failed. At this point I have 200GB of free space on my second HDD, I've redownloaded the USB Install. Could someone confirm these steps. 1.) Give 2GB to "swap area" 2.) Give the ...
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0answers
32 views

Uninstallation of Ubuntu [duplicate]

I installed Ubuntu on my system parallely with. The drive in which it was installed, it created a folder named Ubuntu. I completely deleted that folder by mistake and now when the computer boots up, I ...
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2answers
29 views

How to change boot order in grub2 to include bootable USB?

I want to install Windows OS in an empty partition(dual-boot) using a bootable USB. However I can't seem to enter BIOS to change the boot order. Can I include the USB in the boot menu in GRUB2?
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1answer
51 views

Error no boot device found or disk failed ubuntu 14.0

i migrate from window 8.1 to Ubuntu 14.04. I installed Ubuntu create swap area ,boot area and root .and follow all instruction. install g partition and set flag boot area to grub_bios run boot ...
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0answers
16 views

Dilemma with Dual boot in HDD and fresh installation in SSD

I'm stuck with a strange situation regarding an existing HDD and an SSD (connected via optical drive Caddy) in my laptop. Context: The HDD already has dual partition with Ubuntu and Windows. I have ...
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0answers
24 views

Not able to boot after installing latest kernel Ubuntu 14.04

I am trying to build and install kernel on my Ubuntu machine. I downloaded source code of kernel 4.1.4 and installed it using $sudo make modules_install install I am getting error, Could not mount ...
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0answers
28 views

Wifi not connecting in windows 8.1 in the ubuntu 14.04 and windows 8.1 dual boot system

I am using a dual boot system with ubuntu 14.04LTS and windows 8.1 . I install ubuntu after installing windows. Then the bootloader problem occurs.Windows was not recognized in login. Then I install ...