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 to fix the starting up problem with two operation system?

I have installed Ubuntu & Windows 10 on my laptop in different drives. But when I start up my laptop. The option to choose system Win 10 always failed. I could only use "F12" to start ...
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After wipe disk error:no such partition. No dual boot

I wipe whole disk because i can't boot windows, but know i have this error:no such partition. And doesn't have dual boot earlier. Does anyone have idea what can I do? Can I install now Windows from ...
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54 views

Cannot boot after a failed update from Ubuntu 15.04 to 15.10 Update

I was running Ubuntu 15.04 on my HP EliteBook 755 and was updating to 15.10 when the update process was stuck for several hours at the same place, so I hit the power button to reboot. Now the system ...
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1answer
14 views

Machin reboots during istallation

I've tried both versions now, 14.04.3 and 15.10 with the same result. No matter if I just choose to try without installation or install I'm stuck in a bootloop. Istantly after I choose one option the ...
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27 views

Windows 10 appeared in grub without installation, why? [on hold]

So I have a dual boot between Xubuntu 14 and Windows 8 on my laptop, even though I very rarely boot into Windows (bought the computer second hand with pre-installed windows 8.1 enterprise edition). ...
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1answer
35 views

Dual boot Ubuntu and Windows 8: UEFI vs Legacy mode

I'm an Ubuntu user and lover. Yesterday, I decided to install Xubuntu on my sister's laptop (which had Windows 8.1 preinstalled, in UEFI mode). It's a Lenovo G400S, 4 GB of RAM, Intel i5 CPU (I don't ...
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36 views

GRUB hang after single keyboard press

I have a Asus MAXIMUS VIII HERO ATX LGA1151 Motherboard with WIndows 10 installed a M.2 SSD (Samsung 950 PRO 256GB), Xubuntu 14 LTS (newest one available the second week of January) on a mechanical ...
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15 views

Persistent error “efidisk read error” can't use my computer, Haven't found the solution on askubuntu so new question

I have not found any solution to my problem on askubuntu to this date (11th Feb. 2016), which is why I created a new question, please take this in consideration before posting a comment. Thank you in ...
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1answer
23 views

Double hard drive, double OS windows+ubuntu

I bought an SSD for my laptop and I moved the old one on the optical drive bay. I installed windows on my SSD and then installed ubuntu on the old one (sdb). I installed Ubuntu using manual ...
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22 views

Kernel panic after upgrading system

I was upgrading ubuntuu to 16.04 today and left computer. When I came it was in the sleep mode. I was trying to enter the password thousands time, but it didn't work so I just turned it off. Now when ...
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3answers
48 views

I installed Ubuntu 14.04.3 LTS, but I can't boot into it. How can I fix this?

I've installed Ubuntu 14.04.3 LTS from a USB drive, on a PC running Windows 8.1. But when I turn on my PC, I'm not presented with an option to choose to boot either Windows or Ubuntu. Instead, I'm ...
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1answer
33 views

Error during installation of Ubuntu LTS 14.04.3

My main OS is Windows 10 Home Edition (64-bit). I have an 8 GB USB 2.0 flash drive that I used to boot off of using the Universal USB Installer software from pendrivelinux.com. The software takes the ...
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39 views

Ubuntu full disk encryption with encrypted /boot

I'm trying to setup a full encrypted disk with a separate /boot partition and I'm having some troubles. I'll write down the procedure I've been following: (On a Ubuntu 15.04 Live DVD session) - fill ...
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20 views

installing Ubuntu Server 14.04.03 LTS on RAID 1 array — Intel server board S2600CW borad

Hi friends this is Prabhakar ... Recently i have configured RAID 1(Intel Embedded server RAID Technology II ) on Intel Server S2600CW by using BIOS utility.Then i can able to see my virtual drive ...
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2 views

Network Interface Device Naming on tftpboot

We are doing a netboot via tftpboot on some new nodes we installed. Basically, I can't figure out how ubuntu decides to name the network interface for each node. A line in our pxelinux.cfg looks like ...
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13 views

If i install Elementary OS, will it automatically be added to the grub menu? [migrated]

I currently have Windows 7 and Linux Mint installed. When my pc starts up, it shows me the Grub menu, it shows an entry for Mint linux and the windows boot menu. I am wondering, if i was to install ...
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16 views

Problems installing ubuntu on GPT and MBR

My laptop is Lenovo Z-570. I was running windows 10, this is the first time I am installing Linux OS. In windows,system information showed that my boot was legacy. So, I assume its BIOS boot. On ...
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37 views

WINDOWS 10 AND UBUNTU 10 BOOT/GRUB PROBLEMS

I had a dual system of windows 10 and ubuntu. After relocating my partition, UBUNTU doesn't work and I when I am trying to use boot repair, the program indicates that "The boot of your PC is in Legacy ...
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13 views

Need help migrating hard drive using Ubuntu

So, I have a computer dual-booted with Windows 8 and Ubuntu 14.04. Despite being dual-booted, it boots straight to Windows 8 (It seems to be a recovery feature with Helwett-Packard computers, I'm ...
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1answer
18 views

kernel panic and Stack with CapsLock and ScrollLock

I just installed ubuntu 14.04 in a machine with ASUS H81M-K (Bios 1002 8/12/14) with pre-existing Windows 7. The system is dual boot with one HDD. While there was no problem during installation and ...
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1answer
24 views

Change from UEFI to BIOS: can not install grub

I wanted to change from UEFI to BIOS on my Samsung Series 9 Laptop to be able to use features such as keyboard backlight. I lossley followed this instruction Convert from EFI to BIOS boot But when I ...
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1answer
74 views

Graphics broken after 4.2.0-27 update

I was using Ubuntu 15.10, driver nvidia 358 from graphics-drivers PPA, my discrete card is GT-650M. Some time after said update, I had some ugly poligons and horizontal lines on my notebook, and ...
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1answer
48 views

how do I fix grub rescue? [duplicate]

So I read another article on how to fix the grub rescue... which this this one right here: Grub rescue problem after deleting Ubuntu partition! So pretty much what I did was this set ...
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20 views

Grub crashes when installing windows 10

I tried installing Windows 10 alongside my existing installation of Ubuntu 14.04. Everything was working fine till I rebooted my system for the second time. Firstly, the GRUB menu shows Windows 7 ...
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1answer
52 views

cannot get grub/boot after Ubuntu install on surface pro 3

I've gotten a surface pro 3 and installed Ubuntu xenial nightly on it. I've disabled secure boot and when I reboot the system after install it goes straight to the bios screen without any boot loader ...
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22 views

Auto-installing Ubuntu next to Windows on a separate hard drive? [duplicate]

I want to install Kubuntu on a computer which already runs Windows 7. For this purpose, I have installed an additional empty hard drive (the drive containing Windows is fully partitioned and should ...
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17 views

load grub2 from winodws boot loader ? building an mbr file for grub2?

Many boorloaders like vboot and grub4dos provide a .mbr file that i can use to load the bootloader from windows bootloader. So, How can i build a a file like this for grub2 ? is it possible to tell ...
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31 views

Dual Boot Encryption (Windows 10 & Ubuntu 14.04 LTS) [closed]

I've been struggling to find a dual boot encryption guide on-line that is up to date and was wondering if someone smart could point me in the right direction. I'm using a fairly common dual boot ...
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1answer
22 views

grub entry for slackware from another drive

I am running ubuntu 14.04 on my machine with following partition structure: /boot 512MB / 50G swap 4G /home 100G~ and I have another drive which has slackware 14.1 on it with following ...
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18 views

How do I configure Ubuntu 14.04 to always boot to ram?

I read somewhere that if you modify "grub/grub.cfg" you could add the toram option in there, but the answer didn't match my grub file, so I added it like this... if [ x$feature_platform_search_hint = ...
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9 views

Recognize keyboard at boot

I am running 15.10 desktop and when I select run as root from the advanced Ubuntu menu, I get a root shell but it does not understand my Spanish (not Latin American) keyboard and I am unable to type ...
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22 views

Ubuntu 14.04 hangs on shutdown after package removal

The problem My Ubunutu 14.04 laptop will not shutdown anymore from the command line or from the reboot button in the OS. It hangs at the shutdown screen indefinitely. This problem started a few days ...
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1answer
19 views

Why my Grub background color become Grey after installing GNOME Desktop?

After I run sudo apt-get install ubuntu-gnome-desktop my grub background color turn grey. Do you know why my grub background color become grey instead of purple?
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“Disk drive for /boot/efi is not ready yet or not present” after reinstalling Windows

There are a number of questions with very similar titles on this site but none of them really helped me. If I missed something, please let me know. So here is my story: My laptop was shipped with ...
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12 views

Trouble-shooting a non-booting 14.04 server on a Atom D525

I am trying to install Ubuntu 14.04 server amd64 on a small Atom D525 machine (with 2GB ram). It won't boot, or even bring up the Grub boot loader. I'm not sure what to try next. Here's some more ...
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16 views

Not able to install any linux distro

I messed up with my ubuntu 15.10. I was trying to install gnome-desktop-environment by running the command sudo apt-get install gnome-desktop-environment, but I closed the process in between. After ...
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0answers
17 views

Permanently Remove GRUB and Linux from Triple-Boot System (GRUB Lingering After Attempted Removal)

I had a triple-boot system consisting of Windows 8.1, Ubuntu 15.04, and Kali Linux (can't recall version, should be irrelevant anyways). I have no further need for a triple-boot system so I've ...
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14 views

Cannot reinstall Ubuntu

I've read other fairly similar posts but those situations are different and the solutions don't work at all. I started with Windows 10 as my only OS. I then tried to install Ubuntu 64 bit as a dual ...
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28 views

Installing Ubuntu on SSD and sharing second HDD with Windows

I currently have: SSD Disk (54.5 GB free of total 112) Windows 10 installed here I would like to install Primary Ubuntu here HDD Disk (172 GB free of total 465) I would like to have Logical ...
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16 views

Install Ubuntu over Internet, if installed GRUB

For example, my friend does not boot the computer (problems with OS), he asked me to reinstall it OS, he has GRUB. It would be convenient to install the OS it remotely. Does GRUB installation from the ...
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65 views

On NUC6i5SYK Ubuntu Linux 15.10 display goes to sleep immediately after splash screen appears

I installed Ubuntu Linux 15.10 from a USB thumb drive on my NUC6i5SYK. I had to add nomodeset to get the LiveCD environment to boot, as the display would sleep if I didn't (as described here: Intel ...
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1answer
113 views

Unable to chainload OS X Clover bootloader from GRUB

So I have a triple-boot setup in which I have just updated OS X (Hackintosh) to the newest version and a new bootloader (from Chimera to Clover). It looks something like this: Ubuntu 14.04 LTS on ...
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1answer
33 views

ubuntu 14.04.3 bootloader cannot be installed at specified location

[retina 15" Macbook Pro 2014, rEFInd, OS X, & Ubuntu 14.04.3] Installing Ubuntu, I've chosen the 'Other' option from the template menu. My partitions are setup as follows: /dev/sda free space ...
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1answer
29 views

I need BASIC, HAND HOLDING type help booting Ubuntu now that I've installed it on my Windows 7 machine

My son gave me an old desktop, maybe 4-5 years old, still in reasonably good shape, with Windows 7 installed. It continually gives the "Windows is not Genuine" message and was/is infected with mucho ...
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1answer
53 views

Give more Hard disk space to Ubuntu

I know my question have been asked quite a few times on this forum but I am not sure if my situation is similar to what was described in those threads hence I decided to create a different one. Anyway ...
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0answers
25 views

Grub repair for encrypted disk

I previously had Kubutu (14.04 i think) installed with an cryptoLuks encrypted hard disk. I have been trying to install 15.04 on the same drive. The install went ok with no errors but I wasn't able to ...
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1answer
73 views

Grub cannot detect Windows 10 (UBUNTU INSTALLED FIRST)

I have a Lenovo Yoga 2 pro triple booted with two Ubuntu (15.10, 14.04) and Windows 10. Initially I wiped the hard drive and installed Ubuntu. To install windows I reformatted the hard drive to GTP ...
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25 views

Grub issues, cont

Okay, so I posted some questions online last night. While they didn't get resolved my bigger issue right now seems to be my desktop will not boot without my windows installer usb I made plugged in. I ...
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1answer
51 views

How to boot from a usb in UEFI mode on a Dell Inspiron

I want to dual boot ubuntu 15.10 with already installed windows 10 (upgraded from 8). From what I've been researching, in order for ubtuntu to be dualbooted with windows 10 on a uefi machine, the ...
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40 views

Editing Grub.cfg

I have two questions. Where is grub.cfg located? Ubuntu / is mounted on /dev/sda6 Fedora / is mounted on /dev/sda8 How should I edit grub.cfg so that when I choose Ubuntu (out of Ubuntu and ...