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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Boot loading problem after Wubi installation of Ubuntu 12.04 on Windows 7

I was new in Ubuntu OS and I was just trying to use wubi windows installer to get a Ubuntu first for hands-on. I followed exactly the same as the instructions and after reboot win7, there is no ...
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1answer
15 views

how to hide windows when booting in grub?

I have installed ubuntu on my computer with dual boot windows and ubuntu, due to several reason I want to hide the windows selection in grub for a temporary time, but i can restore it again when i ...
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3answers
4k views

Ubuntu 12.04 grub install fails, installing to wrong device

This is getting quite annoying and Google isn't proving to be much of assistance. I've built a new server and it has a total of five devices. /dev/sda - 2TB HDD /dev/sdb - 2TB HDD /dev/sdc - 2TB ...
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3answers
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Grub won't boot windows after update from 11.10 to 12.04

thanks for your time and reading this, here's the deal: i upgraded from 11.10 to 12.04 and everything worked out until i rebooted, i had 11.10 sucessfully running as a dual boot with windows vista. ...
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0answers
31 views

grub2: sysmte restart after menu (nvidia, crypt)

I got a ThinkPad T410i and I installed Ubuntu 14.04.1. Grub is showing up but if I select any Ubuntu boot option the system does a reboot. My first search brought up to add nomodeset because of the ...
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31answers
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How do I remove or hide old kernel versions to clean up the boot menu?

Every time I install a new Linux kernel, it gets left in the grub_config, making the boot menu longer each time. I know I can manually search through the installed packages and remove them. Does ...
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1answer
3k views

Kubuntu UEFI Dual Boot with Windows 7 failed at installing Grub-efi

I want to install Kubuntu 13.04 together with Windows 7 in UEFI Mode. I installed Windows 7 first, which created the EFI boot partition. When it come to installing Kubuntu, the installation failed ...
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2answers
36 views

Interrupted upgrade, now boot loop, restarts before Grub

Laptop battery ran out of power while upgrading to 14.10. I connected it and powered it up as usual, but forgot about resuming the upgrade. Then I put it to hibernate, and since then it's stuck in a ...
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1answer
647 views

Boot repair: “GRUB is still present. Please try again ” message is displayed while reparing the boot having windows 8.1 and ubuntu 13.10

I was dual booting winodws 8.1 and ubuntu 13.10. I have updated my windows BIOS. After that i am always getting into windows. GRUB menu is not displayed. So, Using UBUNTU 12.10 live CD (But i have ...
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2answers
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How do I enable the GRUB splash screen in Xubuntu 12.10?

I have Xubuntu 12.10 running fine on a Thinkpad T60. Grub2 is installed as the boot manager and the GRUB....LINUX_DEFAULT is set as "quiet splash". Therefore, Grub should display its splash image ...
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0answers
31 views

Black screen when booting normally

My system Laptop: Acer aspire 8930G OS: Freshly installed Ubuntu 14.10 (64 bit) Memory: 4 GB Processor: Intel Core 2 Duo CPU T9400 @ 2.53 GHz x 2 Graphics: Nvidia GeForce 9700M GT / pre-installed ...
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1answer
50 views

Re-installing Ubuntu while mainting dual-boot with Windows?

I am kinda new to ubuntu and the whole linux field, and have some concerns. First, I currently have Linux Mint 17 dual booting with Win8.1 via grub 2, my question is how to remove linux mint and ...
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1answer
29 views

Error in booting through USB having full install (not live USB)

I am new to Ubuntu and really loved the experience of working on it through the live USB. However the limit of 4GB on the persistence file is something which I wanted to get away from (Tried the ...
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4answers
4k views

Windows not booting in dual boot with Ubuntu 12.04 and Windows 7

I have dual Ubuntu 12.04 and Windows 7 installed in my PC. I installed Ubuntu after Windows, and I have issues with GRUB. After installing Ubuntu, there was no boot loader in the start up, with an ...
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0answers
11 views

Dual Boot Ubuntu failed after upgrading to yosemite

After upgrading to Yosemite, I cannot boot into Ubuntu: it goes to a black screen. GRUB appears in the upper left corner and Flashes "_" . I am using refind . Can anyone help?
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0answers
12 views

upgrade from 12.04 to 14.04 server edition

I have upgraded 12.04 to 14.04 but when i booted it up something is wrong with grub! Please help me fix this, I need a solution badly...
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1answer
40 views

Dual boot for Ubuntu 14.04 LTS and Windows 8.1

I have Windows 8.1 Lenovo S510P laptop on which I installed Ubuntu 14.04 LTS. But not able do boot repair, [or] edit grub; so when I power on laptop I should get option to go Windows or Ubuntu. ...
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3answers
88 views
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If I boot Ubuntu, restart and then Boot Windows, it will give an error in the boot loader

I have Windows 8 and Ubuntu 14.10 in my laptop. If I boot into Ubuntu and then reboot and try to boot into Windows 8, in the Windows 8 boot screen (With a light blue background) I will get an error ...
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2answers
654 views

Fresh install doesn't appear to work

Alrighty so here is the story: Recently installed Ubuntu 13.04 onto my Dell Inspiron 1745 via live USB setup through unetbootin. Live USB works fine, using a 64bit image, able to browse the net, do ...
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1answer
219 views

Can't boot into UBUNTU, after Yosemite install

I have posted on here as a last resort as I have searched for a solution and haven't been able to find one. I recently installed OS X Yosemite on my mac. Since then I have not been able to gain ...
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0answers
6 views

Unknown filesystem, grub rescue after installing Windows 8

I recently tried Ubuntu and installed over my old Windows 7 partition. There was a host of problems here but I eventually solved them and managed to boot into Ubuntu, but the issues continued with ...
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0answers
8 views

Mythbuntu / XBMCbuntu installer does not recognise installed operating systems

I have a system with 13 partitions, running 2 installs of windows 7 and a few installs of Ubuntu 14.04. Grub is the bootloader, and all is working well. I often install a fresh Ubuntu to partitions 10 ...
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0answers
30 views

I can not install Ubuntu 14.10, GNU GRUB error

I downloaded Ubuntu 14.10 and used Universal-USB-Installer-1.9.5.8 in order to install ubuntu using a pendrive. When I restart my pc and choose ,from the boot menu, the usb it shows a black screen ...
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2answers
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How do I replace the default GRUB bootloader?

I have 2 distributions in my PC. Ubuntu and Linux Mint. Linux Mint was installed second, but I work mostly in Ubuntu.  Whenever I install new kernel in my ubuntu, I have to run update-grub from ...
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2answers
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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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2answers
46 views

Does “Erase Disk and Install Ubuntu” replace the default boot screen?

I am new here. And I may replace a laptop's hard disk with Ubuntu. It's an HP Compaq notebook which has Windows 7 installed. So If I choose that install option, will it replace the screen that says ...
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3answers
3k views

Windows 8 UEFI does not boot

I've just bought a new laptop Toshiba, on which there is Windows 8 preinstalled. I've installed Ubuntu Gnome 13.10 and Grub2 detects correctly Ubuntu and Windows. But the strange problem is that when ...
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1answer
39 views

Step by step instructions on how to remove grub2 or mount the EFI partition and delete files (UEFI)

everyone very sorry if this is a duplicate question however I cannot seem to get the instructions on other questions to work. I have been trying to uninstall grub and Ubuntu. I have looked at a lot of ...
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0answers
11 views

edit Grub bootloader both

I've had some boot problems after installing Ubuntu 14.04 to my new SSD (sdb1) adding Windows 10 technical preview afterwards (sdb3) and leaving my old Windows XP on my hdd (sda1), but now everything ...
3
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2answers
545 views

Hot keys brigtness issues with Ubuntu 14.10 in Acer Aspire 5755

I have a Acer Aspire 5755 with Intel video graphic, on Ubuntu 14.04, the combination Fn+←/→(Right/left) arrows can increase/decrease the brightness screen. Works fine on unity and with a ...
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0answers
42 views

Dual boot Win8 and Ubuntu with Ubuntu on mSATA SSD

I have searched the web like a maniac in order to find some answers to these questions, so please help me here... If you only now the answer to one of the questions please post that answer! So here ...
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0answers
11 views

Can't update grub on persistent live USB

I'm trying to update grub on my live usb and I get the following error: ubuntu@ubuntu:~$ sudo update-grub /usr/sbin/grub-probe: error: failed to get canonical path of `/cow'. Any ideas? Nothing I ...
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1answer
727 views

Append options to GRUB_CMDLINE_LINUX_DEFAULT without modification on files

I want to add an option to GRUB_CMDLINE_LINUX_DEFAULT without modifying any files on the system. The reason is that I want to apply it by installing a driver package, but currently I haven't found any ...
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0answers
23 views

unable to boot in windows 8.1 after installing ubuntu 14.04.1 and using boot repair

i installed ubuntu 14.04.1 alongside windows 8.1. After installation ubuntu was not able to boot, so i used boot-repair option for ubuntu. But after that i am not able to boot windows 8.1. it is not ...
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0answers
14 views

Dual booting android-x86 and ubuntu

I came across this post and I tried this with no Luck. I have a sony vaio laptop i am testing this on with android-4.4-RC2 build. I have used the grub customiser to edit the menu entry and this is my ...
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0answers
14 views

Ubuntu 14.04 LTE boots with blank screen

Ubuntu 14.04 was working perfectly on my university laptop Hp Probook 440G2 until I filled the drive fully.It gave me a warning that only 529mb is available.Then I tried to install Vlc media player ...
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0answers
30 views

Add boot entry for Windows 10 Technical Preview on USB flash drive to GRUB2

I downloaded Windows 10 Technical Preview. I used Command Prompt with administrator privilege to execute the following command in order to install it on my 16 GB USB flash drive: Dism /apply-image ...
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1answer
3k views

Remove Grub Loader from Mac - USB Thumbdrive installation

I installed Linux from one bootable USB thumbdrive onto another bootable thumbdrive. That works. However, now my Macbook Air boots to "error: no such device: XXXXXXX... grub rescue>". If I hold ...
0
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1answer
12 views

Windows 8 shows up twice in Grub menu

I have a dual-boot installation with Ubuntu 14.04 and Windows 8. I recently came across grub error and had to use boot-repair-disk. Now after fixing the system, Windows 8 appears to twice on sda1 and ...
9
votes
4answers
44k views

How to fix the UUID in Grub after restore from another machine?

I want to restore a complete tar backup of Ubuntu 12.04 with all my customizations, documents, installed software, etc. to a different machine. I made the backup with the following commands: sudo ...
12
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10answers
47k views

How do I hide the GRUB menu showing up in the beginning of boot?

I stopped Dualbooting and I dont want to have to choose the OS anymore and just have it load Ubuntu like normal like before? Any help is appreciated.
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0answers
104 views

No Grub2 boot manager window after installing Ubuntu 14.10 over Linux Mint 17

I have a laptop with Windows 8.1 update 1 and I installed Linux Mint 17 trough dualboot and everything worked great so when I start my laptop I get a Grub2 bootmanager window where I can choose ...
1
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5answers
28k views

How to delete grub entirely from grub rescue. Boot windows only

I had installed ubuntu (twice actually) onto the same drive. I wanted to 'try again' since one of them didn't install correctly and the other installed differently, but it worked. I was getting ...
0
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2answers
6k views

How do I fix “Grub Rescue”? Uninstallation?

I am currently dual-booting windows 7 and Ubuntu. I am about to sell my computer so I was following a tutorial on how to uninstall Ubuntu. I had deleted my partitions like the tutorial said and now I ...
0
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1answer
16 views

Error unknown file system grub rescue mode due to partitioning of my hard disk in win8 other istalled os is ubuntu

I install two widows When I partion my disk on win8.1 The system.enters to unknown filesystem grub rescue mode How to fix it I hv lots important files in my win8 I just try commonds like Grub>set ...
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0answers
17 views

GRUB with Windows 8 or 8.1?

Is there any way to boot a Windows 8.1 64-bit install media with GRUB installed over Windows Boot Manager? I need windows, but want to keep Ubuntu still.
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1answer
51 views

how to permanantly change boot order in UEFI os manger list?

how to change the boot order in a UEFI-based dual windows/ubuntu install , usually UEFI system boots directly to windows (I experienced this with HP 15) although i made a lot of changes to make it ...
0
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1answer
39 views

Running Ubuntu from a Flash Drive

I need to run Ubuntu 14.04 on a notebook to test certain remote services but I don't want that OS permanently installed on that computer. So I have figured out I could run an Ubuntu installation from ...
0
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1answer
30 views

Ubuntu black screen after install!

Here goes my problem: I've just finished installing ubuntu onto a computer who, has 1 SATA DVD-RW device and 1 IDE HDD on slave, just after installation finished grub trows me an error like this: ...
2
votes
1answer
3k views

Moving grub from one disk to another

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 ...