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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Link to restart from Windows to Ubuntu

I have standard dual-boot system: Ubuntu and Windows. Grub is configured to launch Windows by default. Is there a way to create some kind of link in Windows, that would: restart Windows boot into ...
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1answer
26 views

“Error: Unknown filesystem” on all my drives on Grub rescue

I was trying to start my computer in Windows safe mode and ended up pressing F8 before selecting Windows in grub instead of after and now it's stuck in grub rescue. I looked up how to use it to make ...
0
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1answer
28 views

Ubuntu installer stuck at “configuring boot loader…”

I dual-booted my windows with Ubuntu 14.10 Due to some failed upgrades, there was something wrong with most of my drivers... The sound wasn't working eventhough the speaker test works and the wifi ...
0
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0answers
6 views

On mini Mac, after install of 14.2, the pass-phrase for encrypted drive is not accepted. But also I can not boot from install media anymore

I have checked how to enter my pass phrase with different keyboard-layouts after having read the listed issues with this error. However I still can't get through. I can no longer boot the mac with ...
0
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0answers
12 views

Unknown filesystem on all my drives on Grub rescue

I was trying to start my computer in Windows safe mode and ended up pressing F8 before selecting Windows in grub instead of after and now it's stuck in grub rescue. I looked up how to use it to make ...
0
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1answer
27 views

Broken links after kernel upgrade

After running: sudo apt-get update && sudo apt-get dist-upgrade And upgrading my kernel as well as some other stuff and then running this twice with a reboot after each running: sudo ...
1
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2answers
60 views

How do I use GRUB rescue?

So when I was starting my computer, I pressed F8 and then it said there was no such partition and now it only shows GRUB rescue. How do I fix GRUB to run normally again?
0
votes
1answer
36 views

GRUB menu does not show after shutting down and restarting from Ubuntu on a Sony Vaio with pre-installed Windows 8 dual-booted with Ubuntu

I have installed Ubuntu 15.04 with Windows 8 on my Vaio. When I shut down from Windows and start the laptop, I get the GRUB menu and can select between booting with Windows and Ubuntu. However, after ...
1
vote
1answer
30 views

automatically switch the boot order in grub2

I have Ubuntu 14.04 Server and Ubuntu 14.04 Desktop installed. My task is: restart running Ubuntu Desktop (with crontab) boot into Ubuntu Server do backup etc. restart running Ubuntu Server boot ...
1
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1answer
25 views

How do I get rid of GRUB without formatting my HDD

I couldn't find an answer to my question so I thought I would ask my own. Today I tried to install Kali Lunix from a USB drive. I WAS running a dual boot with Ununtu and Windows 8.1. Every time I ...
0
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0answers
45 views

Ubuntu Won't Boot After Upgrade From 14.04 To 14.10; Not Even in Safe Mode

I've tried endlessly to find a solution to my problem, but nothing works. I guess my situation is a bit different. When I boot, it gives me the normal Ubuntu startup screen with the different boot ...
0
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0answers
59 views

UBUNTU 14.04 Won't boot or Shut down

I just installed Ubuntu 14.04 I love ubuntu but I ran into issues recently. most of the time I boot it gets stuck at the purple screen or I get the error [ 17.912.611 dw_dmac ...
0
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1answer
26 views

Removing the Unmount Partition Disks Prompt During Unnattended Ubuntu Install

I'm trying to create a completely unattended install of Ubuntu and have removed nearly every possible prompt from the installation process. The only remaining prompt is the one shown in the image ...
1
vote
1answer
27 views

Set root to current drive in GRUB

GRUB require one to set the root drive in its config. Usually one write something like search --set=root /boot/vmlinuz or explicitly set root=(hd0,1). I found this little excessive considering the ...
0
votes
1answer
111 views

How do I fix Ubuntu 15.04 when I cannot seem to boot it?

I followed both Sharad's and A.B.'s answers (both of them) on a previous question about Kubuntu. I then rebooted LXDE and managed to get into Grub, I then selected to run Ubuntu, normally (i.e., the ...
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votes
1answer
36 views

how to : Reinstall Windows 7 [duplicate]

I installed linux ubuntu last month and everything got messed up . When I first tried it , everything works fine. It's fast and convenient so I decided to install it permanently but after permanently ...
0
votes
1answer
27 views

Dual booted Windows 8.1 and ubuntu. Deleted Ubuntu partition stuck with Gnu Grub version 2.02

I know similar things have been asked before, but they either apply to grub 1 or I am just too ignorant in the subject matter to follow the answers. I can't get ubuntu, bootloader, or windows recovery ...
0
votes
0answers
8 views

14.04 unable to boot after formatting different primary drive in Acer r7

I have owned my Acer r7 for about a year now and within the first week I installed a 120gb evo msata as a secondary boot drive running ubuntu 14.04. I had setup luks encryption and all partitions ...
0
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0answers
16 views

Windows does not load properly after Ubuntu upgrade

I had a dual boot of Ubuntu 32 bit and Windows 7. Recently I upgraded to Ubuntu 64 bit. When there is no grub, Windows loaded properly. But with grub, I get a strange screen after choosing Windows ...
0
votes
1answer
21 views

not able to install grub2 from live usb

When i try to install grub 2 by the command sudo grub-install --root-directory=/media/grub2 /dev/sda I get the error: failed to get canonical path of '/cow'. When I try to install grub by sudo ...
0
votes
1answer
19 views

Properly backup OS/Boot partition

I have two drives in a media server that two different sizes, so I can't run raid on it. However I would like to backup my OS partition so that if Drive 1 fails I can just swap them, update grub/boot ...
0
votes
0answers
26 views

Can not fix the GNU GRUB with live CD

I have both Windows7 and Ubuntu on my computer. I had updated my windows and now I can not boot Ubuntu anymore. The error is: GNU GRUB Minimal Bash-like line editing is supported. After lots of ...
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0answers
194 views

ACPI PCC Probe failed. starting version 219 Welcome to Emergency Mode!… ERROR-MESSAGE

Hello i recently noticed the following error at System-boot and was basically stuck at the Emergency-Mode. I even reinstalled Ubuntu 15.04 right after this error, but without deleting the other ...
0
votes
1answer
48 views

Stuck at boot screen after update: Ubuntu Gnome 14.04

Yesterday, I did the automated software update for ubuntu gnome 14.04, and the machine has stopped booting since then. The upgrade gives out a new kernel which is 3.13.0-53-generic from the previous ...
0
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0answers
17 views

Grub Error “No such device” after replacing a hdd on dual bot (Windows 7/Ubuntu)

So I got this strange problem I seem not to be able to fix on my own, despite having tried several solutions described in the internet and I hope you guys can help me out! In my PC I have 2 hdds: ...
0
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0answers
23 views

Ubuntu wont boot after update

With the latest update my Ubuntu OS will not boot. I only get the grub prompt. I only have Ubuntu OS on my computer so there is nothing to choose. I had to reinstall to get computer working again. How ...
0
votes
1answer
81 views

Failing to Dual boot Ubuntu on Lenovo G50 Core i7 Windows 8.1 system

Not able to install Ubuntu on Lenovo G50 Core i7 Windows 8.1 system. All the time the GRUB installer fails to install and the system directly boots to Windows 8.1. Even when trying with the Ubuntu ...
0
votes
0answers
29 views

GRUB won't let me boot into Windows 7 recovery partition

I have Windows 7 and Ubuntu in a dual-boot setup using GRUB. I need to reinstall Windows 7, but I only have the recovery partition, no installation CD. I read that to boot into the partition, you hit ...
3
votes
3answers
134 views

Grub wait time 10 seconds after editing to “0” in /etc/default/grub?

Using all of the solutions described on this site, setting the Grub menu wait time to zero does not work. I did the following: sudo cp /etc/default/grub /etc/default/grub.old sudo gedit ...
0
votes
2answers
50 views

Install Ubuntu 14.04 on external HDD with Windows 8.1 UEFI

I recently bought a new laptop, Lenovo Essential B50-70 MCC39MB Azerty, and I had an external HDD lying around with ubuntu 14.04 on it. I thought it would be nice if I could use this HDD whenever I ...
1
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1answer
20 views

After uninstalling ubuntu i can't enter any system. Grub rescue error: unknown file system

I used to have Windows 8. I installed ubuntu (14.04 to be exact). Soon, ubuntu was messed up. So I tried to install a new system. I deleted the ubuntu partition and now whenever I try to boot my pc it ...
1
vote
1answer
68 views

Cant boot to Ubuntu 15.04

I installed Ubuntu 15.04 today with disk erase too, my problem is after installation it again asks me to install/go on without installing. And when i unplug the USB then it just says no medium found ...
0
votes
0answers
23 views

Deleted two Ubuntu Patritions now laptop loads into grub

I deleted two partitions to remove ubuntu from my dual booted Windows 8 laptop, then i restarted my laptop and now it loads into grub, it doesn't load the grub rescue, only grub. I don't have the ...
2
votes
0answers
80 views

How to install kubuntu on Lenovo thinkpad e555

I have been trying to install Kubuntu 15.04 on Lenovo ThinkPad E555. I have created /, /home and /boot partition but as soon as I install it, it doesn't show up on boot screen (it only shows Windows ...
2
votes
0answers
52 views

Windows 10 and Grub not working properly

I recently decided to test Winodows 10 on my HP dv6 laptop with Ubuntu 14 installed. I was able to get Windows up and running without any problems but getting Ubuntu and Windows to boot properly has ...
0
votes
0answers
31 views

I installed Ubuntu and when I try opening the setup utility it comes with GRUB

Okay. I used to have Windows 8. Then I installed Ubuntu over Windows 8. When I tried the setup utility on Windows it worked, but now it sends me to the GRUB menu. I tried installing zorin but GRUB ...
0
votes
0answers
28 views

I just installed Ubuntu alongside my Windows 8.1, but it only boots to windows, or shows a grub command line thingy

After installing Ubuntu with a USB key, the final step was to just restart and use Ubuntu. However, when I restarted, the computer only boots to Windows 8.1. I have encountered the grub2 part when I ...
0
votes
0answers
16 views

GRUB menu doesn't show up while booting up. I have installed Windows XP and Ubuntu 14.04 LTS

It says 'Not optimum resolution. Recommended resolution: 1280x1024 60Hz' Although the GRUB menu doesn't show up, it seems that its working. Because when I press the down arrow key and then Enter, XP ...
0
votes
2answers
42 views

Load Ubuntu without GRUB, Is it possible?

I have two partitions. The first partition contains Windows. I use a second partition for Ubuntu without GRUB. How can I make Windows bootloader can detect Ubuntu? I do not want to use GRUB. Is it ...
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votes
1answer
38 views

How to change lowercase hex to uppercase with efibootmgr?

Lowercase hex appears to be a problem for grub2: :~$ sudo grub-install --recheck /dev/sdb` Installing for x86_64-efi platform. ** Warning ** : Boot000a is not EFI 1.10 compliant (lowercase hex in ...
2
votes
0answers
76 views

change host name initramfs ALERT! /dev/mapper/guacamole--vg-root does not exist

I have two servers - guacamole and chorizo to be set up with Openstack cloud. I installed ubuntu server on one, then used the linux "dd" to image the disk to build the other, and renamed the server ...
0
votes
1answer
52 views

Ubuntu & UEFI - GRUB console after boot (Boot Repair output included)

I still have the problem with booting Ubuntu on UEFI based laptop (Dell XPS 13, the newest one) After booting all I can see is a Grub2 console. I tried Boot Repair, but it hasnt helped me at all. ...
0
votes
0answers
31 views

installation problem with grub

Whenever I begin the installation for ubuntu it always gets almost all the way done and then pops up this error messege "Fatal Error grub/dev/sda cant install" or something close to that. Ive tryed ...
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0answers
14 views

Grub warning- xen

When I run update-grub I get the following warning on my Ubuntu KVM hypervisor: Including Xen overrides from /etc/default/grub.d/xen.cfg WARNING: GRUB_DEFAULT changed to boot into Xen by default! ...
0
votes
0answers
35 views

Dualboot Win7/Ubuntu boot-repair fixes only the 1st boot

I've got a funny problem here. I have a Win7 machine and I decided to dual-boot it with Ubuntu. After installing grub worked fine and I started configuring Ubuntu to my preferences. Everything was ...
0
votes
1answer
69 views

Installed 13.10 over 14.04 by mistake. Cannot boot into anything!

To start, I'm trying to boot a 14.04 live usb made with unetbootin on my own 14.04. Sometimes it hangs here Sometimes here sometimes at a blank screen and sometimes it boots just fine but ...
0
votes
0answers
33 views

After installing ubuntu I restart computer and it directly boots to windows and does not go to grub menu

I installed ubuntu 14.04 64 bit on my laptop which had windows 8.1 pre installed. I am able to login in ubuntu using boot device option in BIOS (by pressing F9 key on startup in my hp laptop and ...
0
votes
0answers
47 views

ubuntu terminal turned black after re-installing GRUB

My terminal (ctl+alt+t) screen has turned completely black. But i can open a specific file ("gedit file.c" opens though i cannot see within the terminal (the command itself cannot be seen) where ...
0
votes
2answers
56 views

Error: Malformed File on boot. How to get rid of it? [duplicate]

I did a fresh install of Ubuntu GNOME 14.04 LTS on my computer and it shows this error like, maybe 2 out of 3 times I start the computer. It has no negative effect AFAIK except for increasing the ...
-1
votes
0answers
68 views

Formatted hard drive. No OS, and not booting from USB

I installed fedora initially, dual booting with windows 8, then because of grub problem I am only able to boot into fedora and not into windows 8; While fixing grub I found that some problem with ...