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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How to repair GRUB from backup?

I have Windows 8 and Ubuntu 13.04 in dualboot. But the problem was that Windows didn't boot when GRUB is set as primary bootloader in BIOS. When the Windows EFI partition was checked as primary, ...
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873 views

How do I restore a lost grub boot option on Ubuntu 12.04

Ok, there are probably tons of questions asked related to myproblem but I'm in a delicate situation so I do not dare to experiment... Background: I have installed and setup a (Ubuntu/Windows7) dual ...
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159 views

How to permanently delete ALL older kernels using the shell with confirmation question?

To free up some disk-space you can check which kernel you are using with: uname -r And then remove ALL kernel versions but the current with: dpkg -l 'linux-*' | sed '/^ii/!d;/'"$(uname -r | sed "s/...
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159 views

installation on RAID set “seeking device”

I'm trying to install Ubuntu 13.04 (No 13.10 because of this error (https://bugs.launchpad.net/ubuntu/+bug/1241589)), the installation succeeded, but with an error that he could not install bootloader ...
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2k views

grub-efi-amd64-signed failed on LUKS encrypted disk

Am I doing something wrong installing using LUKS in dual boot? I've got a dual boot system with Win 8 installed, I'm re-installing ubuntu 13.10 along side to enable full disk encryption, following ...
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42 views

Cannot get Ubuntu to recognize Windows 7

I have installed Windows 7 on my laptop and then wanted to go and install Ubuntu 12.04 afterwards. When I installed Windows 7 I created a couple of spare partitions. I then used the Ubuntu USB boot ...
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3k views

Ubuntu 13.10 on SSD (system) and HDD (data). Missing /grub/i386-pc/normal.mod

I've got a HDD (750 GB) and a SSD (16 GB). I want to install Ubuntu (13.10) on the SSD, but because of its small size, I need to install /home, /var and /tmp on the HDD. After that, I would like to ...
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589 views

I need my pendrive to boot into Ubuntu, how to correct this and boot from the HDD?

I installed Ubuntu through USB. Instillation was successful. But when I restarted my laptop it didn't boot. So planed install it again when started selected install from USB. it booted my previous ...
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129 views

Install ubuntu using GRUB2

I have Deepin linux installed and now I need to install ubuntu. I don't have CD ROM , so I thought I can use GRUB2 ISO boot option. I have used the link Install Ubuntu from iso file using grub2 to ...
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Ubuntu 13.10 software raid

I had already Ubuntu OS installed on my desktop PC, where the software RAID 5 is configured ( 3 partitions /, swap and home ). This system was upgraded from the 11.04 till 13.04, it was quite messy, ...
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GRUB 2 problem after Mac OS X update

I have a MacBook Pro in dual boot Mac OS X / Ubuntu 12.04 (Precise Pangolin). When I boot it I have a rEFIt menu, and I can chose between Mac OS X and Linux. A few days ago I have ...
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Boot Windows 7 iso from grub2

I want to do it because I want to install Windows 7 and my BIOS menu doesn't appear; it skips to grub2 menu at start, but that's another story... Is there a way to boot the Windows 7 installation iso ...
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425 views

Ubuntu 13.04 won't reboot with additional hard drive attached

I have a fresh Dual Boot system (UEFI, Windows 8.1 and Ubuntu 13.04). Ubuntu boots fine (from a SSD on SATA Port 3). However, once I connect a hard disk (to SATA Port 1), Ubuntu will boot only once ...
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706 views

Windows 7 disappeared in list of Grub while loading

Installed Ubuntu 12.04 alongside the Windows 7 two weeks ago. Initially haven't any issues with that. day ago installed updates on Ubuntu and after restarting the system found the absence of Win7 in ...
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314 views

Grub cannot boot Windows 7 loader entry on 3tb drive

It fails and it says 'cannot find device'. It will work again if I reinstall Windows, and use something like EasyBCD. But I'd like grub as a loader only, can someone help me out here? My system has a ...
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55 views

dual boot ubuntu and windows 7.failed to boot into windows 7

I have installed windows 7 firstly and then ubuntu quantal quetzal o.s ..when i enter into grub showing options windows 7 and ubuntu,when i click windows 7.system is restarting and grub is again ...
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410 views

Issue restarting after changing /etc/network/interfaces to a static IP Ubuntu 12.04.3 LTS

I've been trying to set up a static IP address on my new Ubuntu build (12.04.3 LTS). I changed the following lines in my /etc/network/interfaces file from: auto eth0 iface eth0 inet dhcp to: auto ...
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5k views

Ubuntu 13.10 Grub 2.0

I know this question may have been asked hundreds of times before but there doesn't seem to be one answer to how to solve it. I upgraded my computer to Ubuntu 13.10 and my computer was low on battery,...
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Graphical GRUB editor for Ubuntu 13.10

I wanted to ask what graphical GRUB editors are there for the latest Ubuntu release (13.10)? And how do I install one? I searched through the Ubuntu Software Center but I can't find anything there. ...
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277 views

13.10 Saucy login issues since update from 13.04 - boots in to text mode

I tried updating from 13.04 to 13.10, it upgraded with errors. I'm not sure of the errors it faced while updating. I have Nvidia NVS 300 graphics card. On reboot my system stuck on splash screen. No ...
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1answer
76 views

Format a pc with a GRUB error

i have a pc with a grub error {caused by deleting ubuntu partition in XP dual boot} i would like to format the hard disk and install a new OS [chromium] i do not have either the ubuntu or the XP ...
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How to install Ubuntu 13.10 on Hybrid Disk alongside Windows 8.1

I am having trouble installing Ubuntu 13.10 on HP Envy 4-1046tx ultrabook. When i bought this, it came with windows 7 pre-installed, but i upgraded it to 8 and now recently to 8.1. But somehow, i feel ...
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67 views

Grub failure after upgrading to 12.04

I have a computer with Windows 7 and Ubuntu 11.04. While updating from 11.04 to 12.04 an error occurred with grub. It would load but wouldn't let me launch any of the Operating Systems. I had to ...
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886 views

Adding grub2 menu-entry for iso using grml-rescueboot

Following this official Ubuntu documentation page and the steps outlined under "Creating the grub2 Menuentry - grml-rescueboot", I tried to add an i386 desktop iso of the old Feisty Fawn (7.04) to the ...
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602 views

Help installing windows 8 partition

I have installed the most recent version of Ubuntu, I always loved Linux but this is the first time I have ever installed it on my PC. The fact is that I am a gamer and I wanted to install a ...
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158 views

External hdd boot entries added to GRUB after upgrade to 13.10

Long story short, I was using my laptop's internal HDD as an external one on my desktop, and I forgot to remove it when I was upgrading to 13.10. Now GRUB on my desktop has added entries for the ...
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1answer
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Straight into bios after starting windows 8 on asus zenbook [closed]

I have a strange problem for which I hope anyone here has the answer. I recently bought a Zenbook prime UX31A. I installed Mint 15 (based on Ubuntu 13.04) after I switched of the secure boot in the ...
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562 views

Dualboot help- windows stuck on windows loading when i try to boot it, ubuntu 13.10 works fine though

I installed ubuntu 13.10 the other day, and now when ever i try to get back into windows it keeps getting stuck at windows starting and the windows animation is still working, but it never loads. I ...
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1answer
2k views

hp probook 4540s no dual boot with linux

My problem is .. I have this laptop hp pro book 4540s with Win 8 after install Mint 15 and Ubuntu 13.10 I cant see the grub loader i mean when the machine start go directly to win 8 ?!! I did every ...
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1answer
11k views

Moving grub from one disk to another [closed]

I have 13.04 installed on my hard drive in my laptop, I now also have 13.10 on an SSD in the same machine. At the moment to boot 13.10 I have to set in bios to boot my hard drive (which is not the ...
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1answer
523 views

Cannot install libgtkmm-2.4-dev in Kubuntu 13.10 - unmet dependencies

I'm trying to install grub-customizer in Kubuntu 13.10. After a lot of fiddling, following various online advice, I got to the point where I needed to install libgtkmm-2.4-dev (which I know nothing ...
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Mac OSX update broke booting Ubuntu

I have a mac that is running a dual boot with OSX and Ubuntu. I am using rEFIT. I just updated my OSX to the new OSX Mavericks, but when i restarted my computer and tried to enter Ubuntu from rEFIT I ...
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Grub Rescue - the laptop won't boot

First of all I'm Italian, so I apologize for my bad English. Second, I have a big problem. I have a new Sony Vaio Pro 13 (so, it's an ultra-book WITHOUT the CD drive), which had Windows 8 pre ...
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1answer
257 views

What to do about unreadable grub screen

I have been upgrading my Ubuntu, from 10.04 to 12.04 to 12.10 to 13.04 in the past few days with varying degrees of success. One problem that has been constant through every step of the upgrade, ...
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Problem with grub2 | unknown filesystem, grub rescue> [duplicate]

my english is bad , but i think we can understand. I have dual boot with Ubuntu 11.10 and Windows 7 . I can't mount partition in Live mode. I lost grub2 on start, and i get a message: error: ...
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2answers
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/dev/mapper/ubuntu--vg-swap_1 is not ready or not present

This is frustrating as heck, I moved away from Windows 7 OS because of issues, errors, and such and was sold to Ubuntu because it was supposed to be reliable, and now errors and issues right after ...
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1answer
2k views

grub menu problem in windows 8 dual boot

after install ubuntu 13.04 in pre installed windows 8 ,ubuntu is successfully installed but every time i start the system windows boot loader show both the os, in that windows 8 works perfectly ...
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6k views

When I try to save any file, it gives me “Permission Denied”

It doesn't matter where, it just won't save any files. I have tried running gksudo gedit /etc/default/grub, because I am trying to change the quiet splash to elevator=deadline but when I try to save ...
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booting directly in windows 8.1 after instaling ubuntu 12.04 lts

i installed ubuntu 12.04 lts over usb drive alongside my windows 8.1 and when installation was finished i pressed restart. And it booted directly in windows without asking me where do i wanted to go ...
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229 views

cannot boot ubuntu with new kernel

My host operating system is Windows 7. I have installed vmware over it. And was running ubuntu 10.04LTS using vmware. But today out of curiosity, i downloaded new kernel 3.10.1 compiled it and ...
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34 views

Uninstalled Ubuntu but still get Grub menu

I get the Grub menu still even though I installed Ubuntu on a separate partition which is now deleted.
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1answer
54 views

Does installing ubuntu touch other physical connected hard drives

In my computer I have 2 SSDs. One has Windows installed. The other is waiting to be used. If I install Ubuntu 13.10 on the empty SSD is there any chance that a single bit will be written to the ...
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1answer
569 views

Error from sudo update-grub

I've installed Ubuntu 13.10 on a Lenovo yoga 13. In order to make the backlight work with the keys I've been following some instructions of this answer (link edited) The process I followed was this: ...
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1answer
492 views

Is is possible to use two kernels at the same time?

After upgrading from Ubuntu 13.04 to Ubuntu 13.10 Intel VTune Amplifier stopped working. As recommeded by developer I tried to reinstall the program and manually compile the needed drivers. However I ...
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351 views

GRUB2 shows purple screen on bootup

When booting my (even w/o problems slow) computer (Raring x64 only, GRUB2), GRUB shows me an purple screen after selection (timeout 0) and before actually booting Ubuntu. This is really annoying ...
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170 views

12.04 server runs into grub “unknown symbol type” problem and I get stuck in grub rescue, how do I fix it?

When I try to boot I get stuck in a grub rescue prompt, with the messgae: error: unknown symbol type '13'. grub rescue> _ I hard rebooted the server over PuTTY, with the standard reboot command ...
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919 views

Asus G75VX / Xubuntu 13.10 EFI installation Blank Screen

I am trying to install Xubuntu 13.10 on a G75VX laptop which has Windows 8 Pre-Installed. So my installation has to be in EFI mode. I've had Xubuntu 13.10 installed in it for a while on a different ...
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1answer
96 views

New installation not letting me boot to windows

I have an HP Pavilion running Windows 7. Not wanting to make any changes to my 1TB hard drive, I installed Ubuntu 13.10 on a separate 40GB hard drive in the same computer. After installation, I can ...
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How to fix plymouth (splash screen) in all Ubuntu releases!

How to fix black or broken plymouth (splash screen) after installation of nvidia proprietary drivers in Ubuntu (it happens usually in all Ubuntu releases)? It's no matter what version of nvidia ...
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3answers
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“sudo update-grub” doesn't work

When I run sudo update-grub I get the following error: /usr/sbin/grub-mkconfig: 1: /etc/default/grub: #: not found This is my /etc/default/grub: # If you change this file, run 'update-grub' ...