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".

learn more… | top users | synonyms (2)

1
vote
1answer
237 views

Restricting on-the-fly editing of grub2 menuentries

Is there a way to disable the e' to edit commands before booting option in the GRUB2 menu? I want all menuentries to be available to all users (so password restricting them is not an option) but ...
0
votes
0answers
23 views

Sony vaio pro13 dual system problem

I'm new to ubuntu, here I may do some stupid changes and cause my computer boot failed, so I need your help. My laptop is a Sony vaio pro 13, and I put ubuntu and windows 10 inside. However, after ...
-5
votes
0answers
22 views

Grub rescue while bootnf [closed]

any fix for this error message, I'm on Zorion is 11 on an HP TC4400 graphics tablet laptop 2 in 1
1
vote
1answer
4k views

file error /boot/grub/i386-pc/normal.mod trying to repair boot, live dvd install probleml

I have seen that there are a lot of threads about this problem. I had Windows 8 installed on my series 3 samsung i5 computer and I tried to install ubuntu 13.04. This is what I did: Because of the ...
0
votes
0answers
15 views

Grub Console appears - hey from Bios Boot Menu Works

I installed Xubuntu 16.04 on a 2nd Hard Disk (not partitioned) and configured the BIOS to automatically boot from it. The problem is, that the automatic boot starts the Grub console instead of the ...
1
vote
1answer
26 views

GRUB trouble (installing Ubuntu, dual-booting with OS X)

I want to be able to dual boot OS X and Ubuntu, but have run into an issue (GRUB). Progress so far: I successfully got rEFInd working on El Capitan (disabled System Integrity Protection and Full ...
0
votes
0answers
23 views

Endless booting loop

So I have installed windows 10 and Ubuntu on two separate drives on my computer. They both works fine and I can switch between the two easily enough. Now I'm trying to see if I can make so that if I ...
4
votes
3answers
4k views

How to return from grub prompt to the grub menu?

If you press escape in grub menu you endup with grub command prompt. My question is how can I go back to the menu, without rebooting?
2
votes
2answers
4k views

How to preseed installing grub to a device during installation without prompt?

I am trying to do a fully automated ubuntu preseed installation. I am stuck because I cannot preseed the answer to installing grub on a device other than /dev/sda without having to manually hit "enter"...
1
vote
3answers
5k views

Grub2 on LVM: How can I switch between alternate root LVs?

I have a working setup of Ubuntu Server 12.04 LTS (precise) installed on a LVM Volume (/dev/vg0/root). /boot is on the same LV, and Grub2 boots nicely from it using its own raid/lvm/xfs modules. Great ...
0
votes
1answer
52 views

Error: cannot find a GRUB drive

I previously posted here with this question, which is now resolved. I am trying to install ubuntu 15.10 on my macbook pro with a flash drive. Specifically, I am following these instructions I found by ...
1
vote
1answer
72 views

grub2 installation fails for Ubuntu 16.04 LTS

I have been trying to install Ubuntu 16.04 on my Lenovo Ideapad500-15isk alongside windows 7 using a usb live disc. I have kept 8200MB of swap space and 20482MB of mount point / and around 390 GB ...
3
votes
2answers
91 views

grub2 wont load Ubuntu on dual boot

Having an issue with a dual boot setup that is being run from Windows boot manager. I can successfully load into grub2 from Windows boot manager, however it seems that grub2 cannot locate to the ...
0
votes
0answers
22 views

How to replace GRUB with ELILO?

I was wondering if it is possible to replace GRUB with ELILO on a installed Ubuntu (and keeping a dual-boot with Win) without losing functionality or personal files?
2
votes
1answer
131 views

How to turn off the filesystem check message which occures while booting

What I want to achieve: I want to customize my complete boot of my Ubuntu 16.04 LTS installation to show the same wallpaper which is actually on my desktop. What I achieved till now: added the ...
0
votes
0answers
25 views

Will boot-repair ommit entry for manjaro

Recently i ran boot-repair and it worked like a charm and even kept the windows launcher. more recently i installed manjaro. it reinstalled grub2 and showed an entry for ubuntu and manjaro but not the ...
0
votes
1answer
43 views

issue setting a password before erasing ssd in what seems like the proper way

I think I've reached the conclusion that I need to format my ssd-drive. What I believe has happened is that once I updated my antivirus-software to the latest version it somehow detected that the copy ...
0
votes
0answers
115 views

Getting Pink Screen After Grub Menu

I have Ubuntu 14.04 installed on my Dell Lattitude E5450 laptop. The installed Ubuntu is running in UEFI mode. I installed Windows 8.1 on another partition on the same disk as Ubuntu. While installing ...
1
vote
0answers
46 views

Edited timeout in /etc/default/grub, and ran update-grub, but timeout remains 10sec

Xubuntu 16.04, Grub 2.02~beta2-36ubuntu3 I edited the timeout to 3 seconds: GRUB_TIMEOUT=3 Then run: sudo update-grub Timeout during grub boot is still 10 seconds. What am I doing wrong? Edit: ...
1
vote
0answers
51 views

Xubuntu 16.04 doesn't boot; hangs after fsck

I have just installed xubuntu 16.04LTS on a Dell Inspiron Mini as a dual-boot with Windows 7. When I booted it up for the first time yesterday, it worked fine. Today, however, I see the following: /...
0
votes
0answers
16 views

“Unable to install grup /dev/sda” while dual booting

Recently, i installed Ubuntu 16.04 LTS 64bit using USB and it worked fine but as a restarted the os it opened windows 10 (My first installed os 64bit, UEFI, secure boot: Disabled). Then i tried to ...
0
votes
1answer
45 views

Fresh install Ubuntu 16.04 : Not possible to boot Win10

Fresh install Ubuntu 16.04 on disk sdc. Windows 10 is on sda. During install, I chose to put grub on sda, I guess it was a mistake. Grub does not see W10, and if I choose starting on windows hd ...
4
votes
1answer
2k 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 ...
0
votes
0answers
37 views

Windows7 - Ubuntu 14.04 dual boot setup

I have been using EasyBcd to create a dual boot menu for my Windows7 and Ubuntu 14.04 installation. I had it set up yesterday fine, but tried to go another route (which failed), so I tired reverting ...
0
votes
0answers
11 views

GUI chainloader for internal USB

I have a USB pcie card with two internal ports. I have a spare 2gb USB stick that I'd like to use as an extensive chainloader so that I can boot to obscure partitions and even use GPT in my old ...
0
votes
1answer
48 views

Grub Installation failed into target

I tried to install Ubuntu 14.04 on Windows 10 having created partitions for swap area and root. But when I am installing ubuntu it keeps saying "failed to install grub-efi-amd64-signed" into target. I ...
0
votes
0answers
34 views

Can't boot to windows 10 from grub and ubuntu won't boot

I previously had Windows installed in BIOS mode. I tried installing Ubuntu in BIOS mode and it just booted to Windows. So I installed it in UEFI mode and it said: You will have trouble booting to ...
0
votes
0answers
24 views

error invalid arch-independent elf magic - same error on HDD, Live 14.04 USB, and Boot-Repair Live USB

Okay, this question has been asked a lot but as far as I can tell I am the first person to get the same error while booting from live USB's. I installed the latest version of 14.04 onto an HDD. On ...
1
vote
2answers
2k views

Windows 7 not showing up in boot after installing Ubuntu

I just installed Ubuntu and upon bootup there is no GRUB, bootloader, or anything. I tried holding down Shift while booting, that brought up GRUB but it did not display Windows 7. I know that Windows ...
91
votes
3answers
82k views

How do I re-run boot loader?

Running sudo apt-get -f install said that The link /vmlinuz.old is a damaged link and: you may need to re-run your boot loader[grub] Here's the full output: user@chrubuntu:~$ sudo apt-get -f ...
0
votes
0answers
32 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=...
3
votes
2answers
399 views

I am getting mount error while booting UBUNTU 14.04

An error occurred while mounting /mnt/C490822890822152 Here is what I get when i choose to boot Ubuntu 14.04 in grub 2. I can still boot Ubuntu by pressing S key, and can access to root terminal by ...
1
vote
0answers
66 views

Where is Grub installed?

I created a live USB of Ubuntu 16.04 and installed it on another USB drive. Sometimes, the computer boots into a black screen with grub rescue prompt grub> When I type exit it takes me to Grub ...
1
vote
3answers
4k views

Installed Ubuntu and now can't boot into Windows anymore

Okay, now I have a new problem... I installed Ubuntu on my new SSD today. But now Windows 8 doesn't show up in the boot loader anymore. I ran Boot Repair and it told me GPT detected. Please ...
0
votes
1answer
12 views

Grub Boot loader will not install to Raid Drive

I am trying to Install Ubuntu Server 16.04 LTS onto a Fujitsu Primergy Server and Cannot get the Grub Boot loader to install. I have initialized the drive many times and this is a completely clean ...
0
votes
0answers
20 views

grub-probe error unknown filesystem after failed release upgrade, LVM RAID5 resize

I've got a software LVM RAID5 setup, across 4 physical hard drives: /dev/vg1/lv0 contains /boot /dev/vg1/lv1 contains / A do-release-upgrade from 14.04 to 16.04 failed due to /boot partition being ...
0
votes
0answers
26 views

My Ubuntu Mate 16.04 LTS freezed

Friends, I used Ubuntu 14.04 LTS. Recently I installed Ubuntu MATE 16.04 LTS. It was working fine. But the network icon was disabled whenever I connect a USB modem to this system. So, I installed a ...
1
vote
0answers
27 views

I can't install (boot-repair) on my Unbunt 12.04 LiveCD

I had a Linux Mint 17 on my PC. Then I installed Windows 10. I lost the Grub. While recovering it I've used the following steps: Got my Ubuntu 12.04 LiveCD [Because I've lost my Linux Mint 17 LiveCD]...
2
votes
2answers
5k views

Gennymotion unable to load virtualbox engines

When I start gennymotion this is the error message shown: Unable to load VirtualBox engine. Make sure that it is properly installed before starting Genymotion. For more information, please ...
0
votes
1answer
40 views

Ubuntu doesn't boot after installation even with boot-repair

I've just installed Ubuntu without any errors, but it won't boot. It skips past HDD in the boot order and goes to the next one. I tried to do boot-repair as it is explained here: Ubuntu doesn't ...
0
votes
1answer
16 views

Stuck at GRUB after PXE Boot-System

I installed ubuntu 16.04 on a headless server, it goes to the PXE Boot-system screen of my provider, starts local boot by default then I'm stuck at a GRUB command, but I cannot type anything. When I'm ...
0
votes
1answer
50 views

How do I install Ubuntu to a USB Hard Drive without the GRUB Bootloader?

So recently I've gotten my hands onto a decent enough hard drive that can run Ubuntu good enough and installed it. It was a Toshiba 1TB USB 3.0, though I don't know the model. I installed Linux on ...
1
vote
1answer
70 views

How to hide grub unless key is pressed?

I have 2 OSs Windows 8 and Kubuntu 16.04. Kubuntu is my primary OS. I would like my laptop to boot directly into Kubuntu, unless I press SHIFT key during boot to make Grub menu visible. Again. I want ...
0
votes
1answer
20 views

Ubuntu 14.04 BIOS skipping and cannot change display settings

I just started having a couple of problems with Ubuntu that occurred at the same time, which makes me thing they are related. I dual boot into Ubuntu and Windows and all of a sudden my BIOS screen ...
3
votes
1answer
141 views

GRUB shows kernels from previous ubuntu version

I have just updated Ubuntu to 16.04 version and when I boot, grub shows the kernels from the previous Ubuntu version. How can I delete them? (not only in the grub list but to actually free that space ...
0
votes
1answer
36 views

Windows not appearing in GRUB

I have a Macbook pro running both Windows 10 and Ubuntu 16.04. When I initially installed Ubuntu, I received an internal error which didn't cause the desktop to load, so I reinstalled it. At the time, ...
-1
votes
2answers
53 views

How to fix GRUB [duplicate]

I have Ubuntu 14.04 dual boot with Windows 8 So I decided I need to reinstall Ubuntu to increase its space. I went to Windows 8 and deleted the Ubuntu partitions and now I can't turn on my computer ...
0
votes
0answers
44 views

Boot-Repair: “core.img can not be found”

Upon installation of Ubuntu 16.04, and two reboots, my computer fails to boot into Ubuntu. It gives me the message "Reboot and select proper boot device or insert boot media in selected device and ...
2
votes
2answers
4k views

Dual boot Windows 8.1 / Ubuntu 14.04 on two separate HDDs

So got a new PC (Dell 3847) and swaped the 400w power supply from old system to replace 300 W one and picked up a NVIDIA GeForce GTX 750 Ti graphix card. I would like to use the 1 TB HDD in my old PC (...