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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Burg + UEFI + Win 8 multiboot

Intro: After some trial and error I've managed to install Ubuntu 12.04 64bit on my Win 8 preinstalled Lenovo Ideapad Y500. So far I've had two problems: Grub detected the windows 8 install as a ...
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23 views

Lenovo Think Pad never boots up with Linux( Ubuntu)

I bought a Lenovo think-pad and installed Ubuntu. It came by default with Windows 8. I booted him from USB with linux and wiped off windows. I did some coding on the machine, every thing went well ...
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35 views

Can not Turn Off PC

After a few days of using dual boot of Windows + Ubuntu, there are problems when I shutdown the PC. Both windows and ubuntu cannot shutdown the PC correctly. In Windows (as comparison), when I do ...
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20 views

Single-boot and drive caddy

I just installed 16.04 LTS on my laptop. Right now, I have two HD drive. The main one (sda), where I have installed Ubuntu. And the other one (in the drive caddy), just for data storage (sdc). I ...
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0answers
56 views

How to merge GRUB with Windows loader

My system has Windows 7 pre-installed, I later created a new partition and install Ubuntu 14.04, recently I just install Windows 10 in another partition. Everything went fine except that GRUB ...
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1answer
41 views

Uninstall Windows 10 and Ubuntu dual boot

I currently have a desktop computer with both Windows 10 and Ubuntu 16.04 on it. Windows 10 is on drive C: and Ubuntu is installed on a 100gb partition on drive D: I'm not happy with Ubuntu 16.04 on ...
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1answer
36 views

Lost Windows during re-installation of Ubuntu [duplicate]

I am using HP ac-15 129tx I was using it in dual boot mode with Windows 10 and Ubuntu 16.04. While experimenting with Ubuntu, I broke it (I was trying to change the ownership of the disk and later ...
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1answer
41 views

What is the UEFI boot flow for Ubuntu?

I've read https://help.ubuntu.com/community/UEFI but I'm still puzzled with the flow of boot process in UEFI mode for Ubuntu. I understand that the first step is UEFI firmware will load bootx64.efi ...
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1answer
48 views

Dual booting 16.04 and Window 10 with Raid 0

I have a Fake RAID (ASRock Z77 extreme 4 MB Intel based raid 0.) I have windows installed on a Raid 0 drive consisting of four 120 GB SSDs. I would like to dual boot Ubuntu 16.04 and Windows 10 (UEFI)....
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24 views

Computer boots into a black screen after I made changes in Ubuntu [duplicate]

I'm a Linux noob currently duel booting Ubuntu with OSX on a 2010 Mac Pro with a 2.4 GHz Intel Core 2 Duo processor and a NVIDIA GeFORCE 320m graphics card. I do not have a boot manager, my system ...
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1answer
36 views

Ubuntu MATE: Unable to access GRUB menu

I'm using Ubuntu MATE 16.04 on a ThinkPad X200. For some reason, I'm unable to access the GRUB menu at startup. When I hit shift immediately after the startup screen, GRUB loading (or something like ...
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1answer
20 views

update-grub2 creates config for wrong boot hdd

My 16.04 runs with 3 SSDs/HDD. Ubuntu recognizes its own SSD as /dev/sdc and I guess therefore creates my /boot/grub/grub.cnf with update-grub2 as follows: set root='hd2,msdos5' if [ x$...
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3answers
4k views

Why can't I install GRUB on my USB drive?

I'm trying to install Lubuntu to a USB drive, but I'm having a difficult time installing GRUB to the drive. The rest of the install seems to go fine. This is what I have tried Went through the ...
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0answers
29 views

Grub not showing on boot. Windows 10 and ubuntu dual-boot not working

I am using HP Pavilion 15 Notebook. It came with a Windows 8 and then I have now installed windows 10 on it(not upgrade). I deleted all the partitions i had and installed windows. After that, I ...
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0answers
19 views

Unknown filesystem after boot

when I turn on my notebook lenovo G580, its write unknown filesystem, its the same problem as this: http://stackoverflow.com/questions/34393502/windows-7-boot-error-unknown-filesystem-after-deleting-...
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1answer
89 views

Grub fatal error - failed to install on dev/sda

I am trying to install Ubuntu 16.04 alongside with Windows 10 (using USB stick), but at the end of installation process a "fatal error" appears, saying that grub failed to install on /dev/sda and ...
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2answers
7k views

how can I fix error: hd0 out of disk?

I am running Ubuntu 12.04 on a netbook - Acer AS 1410. After a download session, I restarted the computer and it said: error: hd0 out of disk. Press any key to continue... I pressed everything, ...
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0answers
46 views

we couldn't find any drives. To get a storage driver click load driver [closed]

I installed ubuntu alongside with windows 7. After installing windows is not showing up in GRUB. Also ubuntu is also not booting up. Again I tried to install windows and while installing I got error ...
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2answers
4k views

Recovering GRUB after installing Windows 7 with boot repair

Recently I've reinstalled the Windows copy I had alongside Ubuntu, and after that the GRUB menu disappeared and the computer starts off on Windows automatically. The solution I found was to run boot ...
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0answers
41 views

Create a bootable USB drive for Mac AND PC

i have an USB Stick with a Ubuntu installation on it, so it is not a Live Boot USB Stick. I want to boot that stick (its using GRUB & non-GPT Table) on PC's with EFI/BIOS and on macbooks with EFI. ...
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2answers
587 views

Trouble installing Ubuntu 16.04 since I got GTX 1070

I was running ubuntu with windows, and once I got my GTX 1070, and installed the nvidia drivers on windows it caused Ubuntu to go black screen whenever I would load it from grub. Additionally my asus ...
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1answer
62 views

Install Ubuntu 16.04 alongside windows 8

I have windows 8.1 installed on my PC which uses UEFI boot. I want to install Ubuntu 16.04 So I have create bootable USB with Ubuntu 16.04 and installed it successfully. and grub bootloader now is ...
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0answers
169 views

BusyBox on persistent USB Livesystem

I retried to build my persistent Linux USB stick, now Ubuntu 16.04 is out. But still it boot only to a busyBox prompt when using the persitent boot entry: BOOT_IMAGE=/casper/vmlinux.efi file=/cdrom/...
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1answer
114k views

Cannot update grub with parameters on live USB

I have booted from a live USB ("Try Ubuntu"), that also has a persistent option set (I used LiLi to create one) to do some tests for this pcie hotplug issue I'm having. I'm trying to test some boot ...
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1answer
32 views

Re-enabling Grub 2 entry after having removed it with grub-customize

At the beginning my computer was equipped with Windows 10 that was installed on a SSD C:/ and had it's data on a 1 Tb D:/ . I've installed Ubuntu 16.04 64bits on the D:/ hardrive. I then changed the ...
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22 views

Windows bootloader from efi delete grub always

I have a problem. I have two HDD one with windows and one with ubuntu. I'm not able to install windows without efi because the installer doesn't boot up so i have windows with the efi bootloader ...
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0answers
21 views

Ubuntu isn't detected, but it's freshly installed. No other os

Sorry for my bad english. My ubuntu installation isn't detected anymore by uefi bios after i booted the live cd, opened gparted and run a check. Why? Also, i tried reinstalling grub and it can see my ...
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0answers
17 views

Not getting Windows 10 OS option in grub menu of ubuntu 16.04 LTS

Please help I need it because it has all my important files. Boot Info Script cfd9efe + Boot-Repair extra info [Boot-Info 26Apr2016] Boot Info Summary: =============================== => ...
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0answers
22 views

How to enable dual boot from 2 disks?

I installed the latest Ubuntu on a lenovo laptop with a 128GB SSD on /dev/sdb. After the installation, I added a new disk with windows 7 on it. Ubuntu recognizes it as /dev/sda. How can I make the ...
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0answers
14 views

How do I find in which partition I have to install Grub?

I am constantly getting grub-iny/dev/SDA failed whenever I tried to install Ubuntu on my windows 10 UEFI with dual boot. I've tried running command grub-installation /dev/sda2 but I get error saying ...
5
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3answers
16k views

GRUB / os-prober doesn't see Windows 8.1 partition

I have a 1 TB HDD with seven partitions, one ~600GB for Windows and one ~300GB for Xubuntu and a bunch of assorted system partitions taking the rest of the space. I recently overwrote my Xubuntu ...
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0answers
30 views

Cant boot to ubuntu and windows after installing ubuntu in diffrent partition! [closed]

I have been told to post this URL: http://paste2.org/IDKZt061 I just installed ubuntu in diffrent partition to my windows and i cant reboot its showing me this message in a black screen: reboot and ...
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1answer
116 views

Bitlocker-encrypted Windows and LUKS-encypted Xubuntu in Dual Boot

Company policies instruct me to use a Bitlocker encrypted Windows 10 (No turning off Secure Boot), but I also use Linux, which has to be LUKS encrypted. Now I need to set this system up for Dual-Boot ...
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1answer
5k views

GNU GRUB black screen on boot

I have a Windows 8.1/Ubuntu 12.04 dual boot, and it has been working just fine in the past. I was working with Windows 8.1 today and chose Restart after being done and it took me to a black screen ...
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1answer
17 views

Grub theme file location

Where should I place a grub theme file? I read grub manual and didn't find anything about exact folder to place it in.
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4answers
216k views

Grub rescue problem after deleting Ubuntu partition!

After I deleted Ubuntu partition, I rebooted my computer and got grub rescue problem. What I have tried so far is finding the right partition of ubuntu from grub rescue command by ls command. It ...
0
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1answer
38 views

How to extend my Linux partition?

I'm currently having a problem with reallocating partitions. I want to take some of Windows' space and give it to the Ubuntu partition. This is my partition list at the moment My partition map: ...
0
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1answer
49 views

Fatal error : grub installation /dev/SDA failed

I am trying to install Ubuntu from past 3 days and constantly getting the above mentioned error. I have windows 10 with UEFI and want to dual boot it with windows using Ubuntu image in USB. For the ...
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6answers
20k views

No box characters after changing the default Grub font

I've been able to change the default font of Grub, by using grub-mkfont -s 16 -o /boot/grub/grubfont.pf2 font.tty and then adding the following line to /etc/default/grub: GRUB_FONT=/boot/grub/...
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1answer
5k views

Ubuntu 12.04 & Mac Os X - GRUB Rescue prompt SET commands made permanent?

I recently re-installed my Mac OS X partition. This somehow messed up my entire partition scheme it seems. First I got dropped to the Grub rescue> prompt when trying to boot Ubuntu. I had never ...
0
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1answer
53 views

dell inspirion 7559 — ubuntu 16.04 booted up using `nomodese` to login screen successfully but desktop is now showing after logging in [duplicate]

I'm a very novice user of ubuntu, tried installing ubuntu on my dell 7559 15" laptop. Installed it successfully after some search, I had to press e and add the following line to grub bootloader ...
0
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1answer
18 views

Is it possible? Triple boot with 2OS'S on first hdd & 1OS on second hdd

I have Windows 10 & LinuxMint installed on 1 hdd/sda (3partitions-1 for windows. 2 for linux / & swap) i want to install UBUNTU 16 as a 3rd OS on my second disk /sdb. My question now is: What ...
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1answer
55 views

How to boot into Windows Boot Manager from GRUB?

I recently dual-booted Windows 10 and Ubuntu. When I start my computer, the GRUB operating system list starts up. Ubuntu works fine, but if I try to select Windows Boot Manager, I get an error. Is it ...
0
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0answers
17 views

Cloned 16.04 from HDD to SSD, black screen with flashing underline on boot

I've done every GRUB fix under the sun and boot repair to no avail. Here's the kicker though. The SSD boots fine when plugged into the laptop via a usb adapter. The issue seems to be related to the ...
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0answers
39 views

Problem booting Server after doing apt-get update apt-get upgrade

I have only been able to get my server to boot using older kernel and have to be at the machine for startup /reboot to get 14.04. I tried boot-repair here is one text file saved - thought I had ...
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2answers
72 views

How to remove GRUB Nothing is Working!

I need to get back to Windows only, and after deleting the Ubuntu partition, GRUB shows up on boot. I can type exit to get into Windows but I don't want to do that every time I boot. I've been ...
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2answers
10k views

Grub resue error insmod normal File not Found

I have a Dual Boot with Windows 7 and Ubuntu. Using Disk Management in Windows, I deleted the Ubuntu partition, but when i restart my computer, I'm getting Grub Rescue Command. I Tried ls (hd0,...
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4answers
4k views

Grub won't boot windows after update from 11.10 to 12.04

thanks for your time and reading this, here's the deal: i upgraded from 11.10 to 12.04 and everything worked out until i rebooted, i had 11.10 sucessfully running as a dual boot with windows vista. ...
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1answer
65 views

Grub Boot from ISO with lvm

In a simple boot procedure from an ISO image the below statements works well: menuentry "Ubuntu.iso" { set isofile="/iso/ubuntu.iso" loopback loop (hd0,3)$isofile linux (loop)/casper/vmlinuz.efi boot=...
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1answer
11 views

Why did grub load show up on multiple machines?

I may have seen something like this before but not recently for sure. I have 2 machines running on Ubuntu 14.04. The machines are not the same. 1 is a laptop and 1 is a desktop. One of the ...