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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1answer
42 views

How to list GRUB's “menuentries” in command-line?

Is there a way of retrieving list of "menuentries" titles of GRUB? I need a results in a format that grub-set-default will accept. eg. "Ubuntu" "Memory test (memtest86+)" etc.
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2answers
101 views

Change kernel version from command line [duplicate]

Is there a way to reboot with a different kernel version from the command line? I have Ubuntu PXE booted on a VM, and there is no graphical interface, but I need to downgrade the kernel (which is ...
0
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0answers
17 views

Cant install ubuntu alongside win 7 (had Win 8)

I have read many many posts and tried to find my problem in one of them some back story, my laptop came with win 8 I re install it with win 7 I allocated some space from win 7 disk manage then run ...
3
votes
1answer
32 views

Ubuntu grub customization through terminal ?

I was just wondering what would be the equivalent of bcdedit(windows) in Ubuntu as I am having some problems to resume system after hibernation in Ubuntu 14.10. I am currently using boot-repair ...
0
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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
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0answers
24 views

Ubuntu UEFI installation no video / currupted video out

I wan't to install Ubuntu 14.04.2 on my new system via a bootable USB stick (UEFI). The system correctly recognizes the stick as UEFI and I get the UEFI grub menu where I can choose what to do. ...
0
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0answers
40 views

grub rescue in dual booting (with ubuntu 12.04) and kernel panic error

Can anyone please help me out in solving the grub rescue problem that I'm facing on my Lenovo G570 laptop (installed operating systems are - windows 7 home basic and ubuntu 12.04 LTS)? The initial ...
0
votes
1answer
42 views

problem in dual boot [duplicate]

I have recently dual booted ubuntu 14.04.2 LTS alongside window 7 in my dell laptop from live usb flash drive. the dual boot was working until I deleted empty partition(not ubuntu or window partition) ...
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1answer
86 views

stuck at this screen after installing GNOME [duplicate]

I'm stuck at this screen after boot. I have installed and again uninstalled GNOME through Ubuntu Software center before. I really just want to go back to Ubuntu.
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0answers
60 views

How can I disable DisplayPort-1 in grub?

How do I turn off/disable DisplayPort-1 in Grub? Specifically, I'm looking for something similar to GRUB_CMDLINE_LINUX_DEFAULT="video=LVDS-1:d", except for DisplayPort-1 instead of LVDS-1. This is ...
0
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1answer
80 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 ...
1
vote
1answer
45 views

Booting Into Fresh Install of Ubuntu on Lenovo x120e

Finished installing Ubuntu, in what appears to be a successful installation. However, I cannot boot into it ("No Operating System Found"). After researching, I came across this article that advises ...
0
votes
1answer
19 views

Grub question mbr

Apparantly I have grub installed on the MBR of 2 drives, my question is 'how can I check this?' And 'how can I solve this?' I am using Ubuntu 14.04 lte in dual boot with Windows 7, this all works ...
1
vote
1answer
27 views

Triple-Boot with GRUB on ubuntu

I installed the ubuntu first, then windows. Windows did overwrite on the GRUB, so i recovered GRUB and now I am able to dual-boot. My question is, if iI install Manjaro now, on a different partition, ...
2
votes
1answer
47 views

Grub boot probelm

I have Ubuntu 14.04.2 installed on my first HDD (500GB) with a second drive(1TB) as a backup (500GB), and the rest(500GB) non allocated. I needed to run a windows based only program for school so ...
0
votes
1answer
100 views

How to dual boot Ubuntu with some other distribution?

My laptop initially had Windows 8.1 with UEFI firmware but now I have replaced Windows with Ubuntu 14.04. Now I want to install Kali Linux alongside Ubuntu. How can I do that?
1
vote
2answers
108 views

Install Windows 8.1. with BIOS unaccessible

I've got really annoying problem and can't seem to figure out how to work it through. Recently I cleared my hard drive and installed JUST ubuntu 12.04 and of course upgraded to 14.04. Now I need ...
0
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0answers
35 views

Installing ubuntu with windows 7 Disk error load

I'm new using Ubuntu my life was going great after i installed alongside with Windows7 that's where problem happens. :) I see that this issue is extremely common but I didn't find any properly ...
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0answers
35 views

Windows 8 not showing up in GRUB

Initially my computer was going straight to BIOS and I couldn't even get to GRUB. I've ran boot-repair using a live session from a DVD, here was the output : http://paste.ubuntu.com/10615351/. After ...
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0answers
33 views

Ubuntu 14.04 does not autoboot

My Ubuntu 14.04 doesn't autoboot, I've to manually select the default grub item. My /etc/default/grub: GRUB_DEFAULT=0 #GRUB_HIDDEN_TIMEOUT=0 GRUB_HIDDEN_TIMEOUT_QUIET=true GRUB_TIMEOUT=2 ...
0
votes
2answers
29 views

I have 2 SSDs one for windows the other for ubuntu. No gurb on sda

I installed Windows 8 on sda and I installed Xubuntu on sdb, but I don't like using Ubuntu grub to change sda mbr. I like to use a simple F12 solution for dual boot. How can I remove grub on sda and ...
0
votes
2answers
45 views

Broken Sudo and no write privilige on file system

I had upgraded ubuntu12.04 to ubuntu14.04 and it didn't boot unless I edited this line in the grub menu linux ${rel-dirname}/${basename} root=${lINUX_HOST_DEVICE} loop=${loop_file_relative} ro ...
0
votes
1answer
60 views

Dual boot giving boot priority to Ubuntu 14.04 (UEFI based)

I will install ubuntu in a computer with pre-installed Windwos 8, this summarize all procedures (Installing Ubuntu on a Pre-Installed Windows 8 (64-bit) System (UEFI Supported)), but something very ...
1
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0answers
50 views

GRUB2 booting raw hdd disk image via loopback

First of all, i tried to google, but only found how to's for booting iso files with grub via loopback. Im running linux mint 17.1 64, up to date. i have a complete dd image of a 128GB SSD with ...
0
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1answer
44 views

GRUB not showing up

I installed Ubuntu 14.10 alongside windows 8.1 and it was working fine until I ran the CHKDSK command in windows now when I restart the PC, there is no GRUB screen and the PC boots directly into ...
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0answers
63 views

Trying to Install Ubuntu 14.10 but will not boot from the hard drive

Okay, I've been at this for 3 days now. I am installing Ubuntu Via USB and I'm using the Universal USB installer and downloaded the Ubuntu 14.10 version. I tried two ways to install it to the hard ...
0
votes
0answers
11 views

Installing 12.10 on the drive where 14.10 is installed

I have a Dell laptop with 64 bit architecture. I installed 14.10 and windows 8.1 as dual boot. Later I tried to install 12.10 on the same drive(/sda6) as 14.10. The installation was successful but ...
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0answers
51 views

Strange boot issue (purple screen)

I'm somewhat of a noob when it comes to this kind of stuff, but I am a computer science student so I am familiar with operating systems. Anyway, I'll try to be as detailed as possible in describing ...
1
vote
2answers
240 views

Failed to open \EFI\Microsoft\Boot\grubx64.efi - 80000000000000E

I have a fresh install of 14.04 on a new SSD. Everything was running fine until I ran boot-repair for some reason that I cannot remember. Now when I boot up I get the following errors: Failed to open ...
0
votes
0answers
16 views

Why couldn't I see grub when first dual-booting with Windows 8? [duplicate]

I just installed Ubuntu. When I rebooted the PC Windows 8 was starting automatically. I thought that "Install alongside Windows 8" meant, that I could directly use the dual-boot, but I had to use ...
0
votes
2answers
90 views

Unable to boot into windows 8.1 after installing on seperate partition (not preinstalled)

I have decided to give Ubuntu a try, so i decided to install it alongside my Windows 8.1 (not preinstalled - It was delivered with win7), though i had to make a custom install (had the "no system ...
1
vote
1answer
76 views

Cannot boot to Windows 8.1 after installing Ubuntu

The issue is fixed, I had forgotten to change boot mode and boot priority in BIOS to UEFI and UEFI First, and also 'Optimize for' from 'other OS' to 'Win8 64bit' First of all, sorry if this question ...
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votes
2answers
125 views

Dual boot ubuntu-gnome 14.10 and windows 8.0 on sony vaio note [closed]

I had many problems to fix the grub on my Ubuntu Gnome 14.10. In my case, I formatted both Linux and windows, but this can help if you only format your Ubuntu. Go to the BIOS interface, disable ...
0
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0answers
51 views

Booting Ubuntu 14.10 alongside Windows 8 stops working on installation of nvidia drivers

So I've built my own PC, and I'm trying to install Windows 8.1 and Ubuntu 14.10 alongside each other onto a 3 disk RAID5 array. The PC also has a fairly beefy video card (a Gigabyte Nvidia GeForce ...
0
votes
2answers
151 views

Ubuntu Server 14.04 after perfect install, boots into blank screen

After installing Ubuntuserver 14.04.2 LTS without any errors I tried to boot into my SSD and then I just got to a blank screen with a blinking underscore. There was no input except for "Ctrl + alt + ...
0
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0answers
43 views

Ubuntu Grub-Customizer: After first reboot after changing settings, Ubuntu freezes after Login

I can't do anything, this has happened to me twice, after logging in, I can move my mouse but it only shows my wallpaper, and that's about it. I didn't know what caused it the first time, but now that ...
0
votes
0answers
21 views

Disk shown invalid after ubuntu installed with windows 8.1

I have recently installed Ubuntu with windows 8.1. It worked fine but one day it crashed my windows boot-loader. In diskpart section of windows troubleshooter (cmd) my disk is shown invalid and I ...
0
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0answers
56 views

executing 'grub-install /dev/sda' failed

I am installing Ubuntu 14.04 as dual-boot with Windows 8 in my HP pavilion laptop in UEFI mode but after some processing it shows an error executing grub-install /dev/sda failed. this is a fatal ...
0
votes
0answers
31 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
0answers
62 views

Solved-Install Ubuntu on Yoga 2, first windows 8 install

So, I recently just got a Yoga 2, and found this guide to installing ubuntu on it https://datainfer.wordpress.com/2013/11/21/install-ubuntu-on-ideapad-yoga-2-pro/ My question is, In the guide, it ...
0
votes
1answer
52 views

Visualizing linux GPT partition (EFI) from Windows Host

I created a rescue grub.iso using the following script. This code worked for me when I using Windows 7, Ubuntu 12, MBR: #!/bin/sh set -e wk_dir=$(mktemp -d "${TMPDIR:-/tmp}/tmp.XXXXXXXXXX") mkdir -p ...
0
votes
1answer
35 views

Repair GNU GRUB [duplicate]

I have Ubuntu 14.04 LTS as Dual-Boot with Windows 7 and everything worked superb. Then as I booted my PC GNU Grub rescue popped up and told me, that it couldn't find my SSD. But as I booted into the ...
0
votes
0answers
28 views

Ubuntu 12.04 and Windows 8.1 efidisk read error

I successfully dual boot Ubuntu 12.04 and Windows 8.1 UEFI Boot Mode Ubuntu 12.04 and Windows 8.1 UEFI When I boot, it shows error:efidisk read error, but it goes to Grub's boot menu right after ...
0
votes
2answers
39 views

Grub can't be saved after modification

I have Ubuntu 14.04 32 bit machine on my lenovo g580. Default brightness keys are not working and can't decrease brightness in settings also. The brightness has been fixed at maximum. I followed few ...
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votes
0answers
25 views

Windows 8.1 updated and now grub is in boot repair [duplicate]

After i updated my Windows 8.1 partition and rebooted into Grub2 it put me straight into grub repair. How could i fix this because it is very annoying
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0answers
33 views

grub rescue> error: unknown filesystem

I deleted the partition where linux is installed on my computer as per the given instructions in askubuntu.com forum. Then I restarted my system to perform the following commands in command prompt: ...
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votes
0answers
49 views

Black screen and restart after grub menu

So looks like this question gets asked a lot, but it is after ubuntu is installed it seems. I haven't messed with a Linux distro in awhile, but I am sure I am doing it right. I have tried installing ...
0
votes
1answer
55 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
26 views

How to repair grub to prompt for Windows or Ubuntu?

http://paste.ubuntu.com/10583474/ I've pasted the link into this email that Boot Repair spit out to me. I believe that I've successfully partitioned my hard drive and installed Ubuntu 14.04.2 LTS ...
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votes
0answers
35 views

Grub Customizer not changing anything

I've changed the order and removed a couple entries in the Grub menu. I hit save, and it goes through saving without an issue, and when I run update-grub, it's output matches my changes (ie. found ...