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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Windows 10 + Linux Mint 17.2 [on hold]

I installed Windows 10 over an existing windows partition on my system. Now I can't boot into Linux :( I've tried booting from the Linux live CD and running boot-repair but I get the an error as shown ...
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1answer
8 views

Having problems booting my Lenovo laptop

I reported a bug on this issue and have had zero response http://bugs.launchpad.net/ubuntu/+source/grub2-signed/+bug/1474342 The problem is that I can no longer turn on my laptop and expect it to ...
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10 views

Ubuntu 14.04 boot error after system update [on hold]

Kindly help me with this issue.... http://paste.ubuntu.com/11936041/
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12 views

Ubuntu 15.04 [HELP] initramfs error fail + Grub2 fail, can't boot or access my OS or files

I'm new here, so far I have been able to fix lots of stuff with past answers, but this time its different and I need help. I'm currently running my pc through a Ubuntu 14.04 Live USB, I have been ...
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2answers
15 views

boot-repair windows not listed

today I installed Windows 8.1 and it broke my grub. I tried to run the boot-repair GUI on a live session of Ubuntu but after the restart of the PC the grub displays ONLY Ubuntu. Before the ...
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9 views

Can't switch to TTY / virtual console, 14.04

Running Ubuntu 14.04 on a 2008 MBP (3,1). Dual booting with rEFInd. Pressing CTRL+ALT+F# does nothing at the greeter or once logged in. I have nomodeset in grub, if I remove it I can't get ubuntu to ...
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6 views

Unable to enter passphrase for encyrtion - screen looks weird

I have two PCs with encrypted / (home is not separated) partitions. On both i struggle with entering my pass phrase to decrypt the /. One PC has an ATI VGA card with the default driver and the ...
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1answer
7 views

Stuck at grub. Keyboard won't work

After a power outage, Ubuntu got stuck at Grub. But for some reason my keyboard won't work. I cannot even get to the bios. My keyboard does not receive any power! (It does work properly after booting ...
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1answer
26 views

Windows 7 reinstall now boot is broken

I had a virus on the Windows 7 part of my pc. I had to format the drive using the ubuntu side. then reinstalled fresh on the w7 part. originally, it only booted to w7 and then I have been trying to ...
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0answers
3 views

grub2: error: /vmlinuz-3.16-ucs109-amd64.efi.signed has invalid signature [migrated]

I am using a derivative of Debian, called Univention Corporate Server. It's a nice appliance that I use for my home server. Yesterday I upgraded to the newest version and since then my server does not ...
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0answers
14 views

Ubuntu single install SSD keep deleting data

I have a HP-ENVY laptop with 32GB LITEON SSD and 500GB Harddisk. I have a single boot system installed with ubuntu 14.04 on the SSD, and have a Data partition on the HD. Partitions look like this ...
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24 views

Help Installing Dual Boot Ubuntu on Secondary Hard Drive that has Stuff on it [on hold]

I have partitioned my disks like so. My plan was to install Elementary OS Freya (Based on Ubuntu) on my larger 1TB driver under the 64GB partition. When I go to install it, I get this. My secondary ...
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1answer
39 views

“GRUB installation failed” What do I do? [duplicate]

I'm trying to install Ubuntu Studio version 14.04.2 (alongside my Windows 8). Everything seems to go fine during the installation until at some point this message pops up: GRUB installation failed ...
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0answers
31 views

Unable to Dual Boot Ubuntu 14.04 with Windows 7 on UEFI

I have an Acer pc and it is running Win7. Because I'm having problems with that OS I wanted to do what the title suggests. And everything works great after the install. But everytime I try to restart ...
2
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1answer
16 views

Grub 2 menu isn't showing up after installing Ubuntu 15.04, Windows 8.1 is preinstalled

I did boot-repair, ordered boot order through efibootmgr even did grub repair from live cd. but nothing happened yet. suggest solutions
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2answers
44 views

Cannot boot directly from Grub2 on dual boot Windows 8.1 with Xubuntu 14.04.2

I had Windows 8.1 Professional and Xubuntu in VM, but now I want dual boot. First two partitions I had them before with Windows 8.1 ((1) EFI and (2) msftres) then (3) partition C: and (4) parition ...
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0answers
19 views

Problems uninstalling Ubuntu (Bios keeps showing it?)

I'm trying new distributions, and I want to clean all my Ubuntu installation. I have a dual boot W 8.1 - Ubuntu. This is what I've done so far: 1 - I changed my boot priority from BIOS. 2 - I ...
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0answers
23 views

Custom Ubuntu 15.04 Installer - Fails grub install on UEFI systems

I used the ubuntu 15.04 64 bit ISO and customized it using UCK. I installed a bunch of packages into the custom installer & generated the ISO. It installs perfectly in Legacy mode (non UEFI) In ...
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1answer
21 views

Unknown filesystem with grub, but Windows Bootloader works!

I have been having this strange problem for a month or so. I have installed Ubuntu 14.04 alongside Win8.1 on my Lenovo z510. It worked fine for about 5 months, but almost a month ago, I started ...
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2answers
23 views

Grub will only boot one of my two windows OS [on hold]

I am perplexed with Grub and am hoping someone can advise me. I have three operating systems installed on my computer: Linuxmint 17 and Windows 7 on sda, and windows Vista on sdb. I updated grub and ...
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0answers
10 views

UBUNTU 14 LTS Server loaded on RAID 10 system (broke RAID to install) - No operating system found [on hold]

So removed the previous as things have now changed: I changed my BIOS (legacy ATA to enhanced) and got Grub to install on /dev/sda BUT still cannot see partitions... grrr... ...
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3answers
73 views

Need help removing linux-image-3.16.0-34-generic and linux-image-extra-3.16.0-34-generic

So I feel like a dunce having to post about this but, I need help trying to fix this issue, mostly because without the fix I can't install any new software or run updates. For some reason one of the ...
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0answers
31 views

Grub not showing Windows 10 after ubuntu using boot-repair to repair grub

I have Ubuntu 15.04 64 bit installed I installed Windows 10, i used boot-repair to fix the grub but now, when grub comes up, windows is not listed, and after grub-update the problem remains, and the ...
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0answers
14 views

Cant get 15.04 or 14.10 or any version of Ubuntu to boot on Flex 10

I've seen a few questions around bit no one has really been able to hope. Ive been trying to get 64bit Linux working on this laptop through its 32bit EFI every nown and again for about a year now and ...
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0answers
12 views

How do I generate a GRUB configuration file for another disk?

Assume I have two disks that both have Ubuntu installed on them. One is an internal drive and the other is an external drive (though this doesn't really matter). This procedure is running on the ...
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0answers
12 views

Removal of Ubuntu when part of a dual boot setup with Win7?

I have Win 7 on one drive and Ubuntu 12.04.03 LTS on a second drive. Grub is the boot menu manager. I want to uninstall Ubuntu and keep Win 7 on this particular machine and install Ubuntu 14.04LTS ...
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1answer
28 views

Syntax error in grub config, no longer updating

I'm running a dual boot set up as shown on this forum and made changes to grub config (themes) as instructed on the OPs GitHub including edits to /etc/gru.d/10_linux (although I have a backup of the ...
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1answer
49 views

installing linux to usb, didn't change boot loader installation, can't get into windows

I was trying to create a persistent usb stick, with everything contained on the usb (including grub or whatever). I used the live cd to install and was pretty sure I changed the boot loader ...
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0answers
14 views

how to repair grub package in apt/dpkg?

When trying to remove obsolete packages I get the following errors for the grub package. How can I repair this? And what could have been the cause? Note that I tried to remove some java packages in ...
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0answers
37 views

What is the difference between Grub and Syslinux?

This question is related to my finding that Ubuntu and its derivative uses both Syslinux and Grub bootloaders on ISO images for Desktop releases. When booting from 32-bit ISO image, it is said that ...
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9 views

Problem with lost files on EXT3 Linux partition

i've got a big problem with files that have disappeared from EXT3 partition. This morning i have recived many i/o errors on consol of my linux server. I could not do anything in bash. After reboot ...
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0answers
43 views

how can I regain bootability of ubuntu after ubuntu 14.04 install alongside Win8.1

I am familiar with win but new to linux. The pc is a Dell Inspiron 660. The bios is AMI, build date 7/26/12, with the Aptio Setup Utility. I installed ubuntu alongside win8.1 via usb created with ...
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0answers
23 views

Ubuntu 15.04 can't shutdown — How to find a way to get a shutdown log

I think all is in the title actually, I just need a way to get a shutdown log to understand what can block it. I don't know if the problem comes from Ubuntu itself or Grub though, as my computer ...
0
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1answer
15 views

GParted will not start, corrupt GPT table

I'm trying to start GParted and get the following series of errors in pop-up boxes before it eventually quits: Invalid argument during seek for read on /dev/sda Libparted Bug Found! The backup GPT ...
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0answers
18 views

Kubuntu freezing on startup logo

I chose recovery option in Grub and it gets far enough that I can drop down to terminal and move around. I can't get the desktop to load no matter what I do. I've tried to edit xorg.config and it ...
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0answers
33 views

How to repair Ubuntu GRUB bootloader from within Windows WITHOUT a live CD

I've been running Ubuntu 15.04 and wanted to install Windows 7 for dual boot, and it of course deleted the GRUB bootloader upon install. However, every time I try to use a live CD or USB to repair ...
0
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1answer
12 views

Boot stuck at IRQ 22

I'm running Ubuntu 14 on a Macbook any my system froze so I performed a hard reboot. However when it came back up, it shows me the grub menu but no matter which kernel I pick the boot freezes with the ...
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2answers
33 views

Install Ubuntu Linux Desktop 15.x on Pre-installed Windows 8.1 laptop and have dual boot [duplicate]

I looked at various questions all over the internet. Infact i did the same almost 6 months back on my HP Desktop but i did so much hit and trial that i have forgotten what to do this time? Do i need ...
0
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1answer
10 views

Grub rescue trouble after moving a partition

So I was allocating some free space for ubuntu and now grub is launching in rescue mode. I have done a lot of searching and tried what has been suggested here several times. Grub rescue - error: ...
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1answer
64 views

Can't get Ubuntu to boot from EFI in Mac

I am trying to get an old ca. 2006 macbook (technical specs here) to boot Ubuntu 14.04.2 LTS. I'm on day two of this now, having wiped the hard drive numerous times and reinstalled from the disk ...
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0answers
6 views

Grub rescue HP mini 1000

Error entering grub rescue mode "no such partition" after i enter Windows recovery environments my partition is not ext4 thankyou for your attention im newbie on linux ubuntu 14.04
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1answer
25 views

ZFS root filesystem

I've been trying to install ubuntu with a zfs as root filesystem. But it seems that GRUB 2.xx which has ZFS support doesen't support compression, so i disabled it. However i keep running in to the ...
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0answers
10 views

Error attempt to read or write outside of disk hd0

I installed Ubuntu 15.04 on Moserbaer 64 GB pen-drive so that i can use it at office desktop computer as well as laptop at home.My office system is already having a windows 8 and Ubuntu installed on ...
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0answers
27 views

Failed to start user service: unknown unit: user@0.service after grub launch [closed]

First I have to let you know that I got absolutely no knowledge about linux and need help and explaination like Im 3. So, Im on holidays and I have no live cd with me. I tried to install crome and ...
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0answers
26 views

How to setup linux on drive d without removing windows on drive c and other drives

I am a starter in Linux. I was having a windows laptop with the hard drive split into 5 drives. Drive C Windows 8.1, Drive D and G empty. Other drives has important data. I want install Linux on ...
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1answer
33 views

Installed SSD and want to boot existing Ubuntu off of original Hard Disk

I just installed a new SSD into my laptop and had some questions on how to boot into Ubuntu. Before I installed my SSD, I had a single HDD with both Windows 8.1 and Ubuntu installed on it. When I ...
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0answers
15 views

Failed to install GRUB boot loader on HP ProLiant DL380p Gen8 Server

please I need your help. So I am trying to install Ubuntu Server 12.04 on this server. Everything else installs correctly, especially the software which I have selected. But when it comes to the GRUB ...
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0answers
24 views

Booting off of a usb

I Have Recently Dual-Booted a asus x401a netbook with Windows 7 and Ubuntu 15.04. Every time I want to boot into Ubuntu, I have to boot off of US to access the Grub boot menu, But once booted I can ...
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0answers
22 views

Grub acting up, and monitor resolution not detected - Ubuntu 14.04 Gnome

I've been having a lot of trouble with this lately and wanted to check if anyone here had a solution. I installed Ubuntu GNOME 14.04 on my secondary drive, but now when I boot up I get into the GRUB ...
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5answers
87 views

Apt fails to remove partially installed kernel and can't install any other packages

Apt is failing to upgrade or install new packages after a seeming partial kernel upgrade. I've tried apt-get purge -f linux-image-extra-3.19.0-22-generic which fails with a very similar error message. ...