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 password protect Grub menu

How to password protect Grub menu from the ro recovery nomodeset command. I want it to where no one unless you have the password to make changes to the menu to try to get into recovery.grub
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Is there any way to add a “Boot to Ubuntu/Windows” icon?

Is there a way to make an icon that would allow you to reboot the computer to a certain OS? I am not sure if a program like this exists yet, but theoretically would this work with Grub 2 or some other ...
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1answer
54 views

Ubuntu 14.04 USB installation drive not recognized during boot(Dell Latitude D630)

Ubuntu 14.04 USB flash drive isn't recognized during boot. I have had a bunch of hardware failures this week and I am down to a hybrid image laptop harddrive with mint 12 installed on it to boot as ...
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Ubuntu 14.04.02 Server after update stops at grub cli

I have the above os as in the title, and it's on a RAID 1 ssd array. What is the best way to repair the grub in this case? I found some info on starting the system manually, but not much in case of I ...
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1answer
17 views

Creating Windows Partition and Dual Boot from Stand Alone Ubuntu 14.04

Ok after a few days of searching with no luck, not even help from the volunteers at boot-repair techs. I've decided to post on here and youtube. Here's my situation: Acer Aspire V5-122P 1.0 Ghz AMD A4 ...
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1answer
27 views
+100

Hyper-V Ubuntu initramfs on reboot

On the virtual machine when I update grub (sudo update-grub) and restart I get the BusyBox initramfs shell on boot. I have a checkpoint on the machine so I can easily go back to just before I ran the ...
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1answer
206 views

How can I correct logical bad sectors in HDD in Ubuntu?

During boot time I found that my hard disk had logical errors in different sectors. I did my research and ran this command: sudo badblocks -sv /dev/sda1 > bad-blocks-result This command created ...
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44 views

Dual Booting Windows 10 and Ubuntu 14.04.2 on Lenovo Yoga 2 Pro

as a preface - my only experience with Ubuntu is playing around on VM's, so I apologize in advance for any naivety. I've just updated my Yoga 2 Pro from Windows 8.1 to 10, and am trying to install ...
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2answers
4k views

No GRUB Screen or recovery mode on Boot after 12.04 Upgrade

I tried the live boot CD and boot-repair, also loaded the Desktop install CD, and it looks like all partitions check out OK. However, when I try to boot Linux (the only bootable partition on the ...
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1answer
40 views

Restoring Grub Launcher After Windows 10

I went ahead and installed windows 10 on my windows 8 and Ubuntu dual boot PC. All went smooth and Windows 10 works perfectly however the computer automatically boots to Windows and the grub launcher ...
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3answers
28 views

change grub2 boot menu names

I installed Ubuntu 14.04 LTS on my Windows 7 computer, and I would like to know how to change the names of the menu options so it will just say "Windows 7" instead of "Windows 7 (loader) (on ...
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1answer
13 views

Manually partitioning 15.04 Server for RAID 0

I'm trying to install Ubuntu Server (15.04) on a 2012 Mac mini with two 240GB SSDs. I recognize that Macs can be tricky with EFI v. BIOS, but that's another issue. I'd like to install Ubuntu Server on ...
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1answer
13 views

Boot-Repair made Dual Boot System unusable

After an Update to Ubuntu 14.04, the system no longer started and showed the grub rescue prompt. I was able to start from CD by pressing F10 at the beginning to select the boot medium. Then I was able ...
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0answers
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Unable to re-install Ubuntu 14.04LTS dual boot from USB. Minimal bash-like line problem

Yesterday I formatted the Windows F drive where Ubuntu 14.04 was installed (from a USB) because of some problem. Now when I am re-installing the same version of Ubuntu by the same USB, I could not ...
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6answers
881 views

hide grub on computer start

I tried all the methods that comes in google search for "hide the grub menu on computer start", but still no luck, I guess things work differently on Ubuntu 15.04 ? this is my grub # If you change ...
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0answers
25 views

Grub does not load in dual-boot, instead auto-boots windows 10

Though secure boot is disabled, grub does not load during startup. Instead, the computer automatically goes to windows 10. To clarify, this was a new computer that was upgraded to windows 10 and ...
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0answers
12 views

Windows 7 doesn't boot; no device, invalid sig

Booting to Windows 7 has worked in the past. I don't know what changed. When I select the Windows 7 menu item, I receive the errors: no device invalid signature 468CEF828CEF6ABF Note that I've ...
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1answer
99 views

Messy GRUB after upgrade to windows 10

I was a bit unconfortable with GRUB when upgrading to windows 10. First of all, before upgrading I was dual booting Ubuntu/Windows 7. For the reason everybody know, we have two lines (sda1 and sda 2) ...
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2answers
297 views

Windows 10 upgrade kills grub and boot-repair doesn't help

I've just upgraded to Windows 10 from Windows 8.1 on my partitioned laptop that has Ubuntu 14.04 installed. Grub no longer appeared on boot so I ran boot-repair from an Ubuntu liveUSB. This didn't ...
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0answers
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while booting system msg:“(initramfs)unable to find a medium containing a live file system” [duplicate]

i have tried to dual boot my system with window 8 and _ubuntu_14.04- (pre-emphasized textinstalled).as i inserted disk of window 8 and there comes a option of language, after selecting language option ...
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1answer
45 views

Can't open file to disable splash screen

I'm on Xubuntu 15.04 32 bit if that means anything. It's a fresh install. I'm trying to disable the splash screen. (There actually doesn't seem to be any. It's a black screen from boot until I get to ...
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58 views

Unable to Dual Boot Ubuntu 14.04 with Windows 7 on UEFI [duplicate]

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 ...
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36answers
331k views

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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3answers
4k views

Black screen when trying to install ubuntu 13.10

I am in need of some help. It has been 2 weeks since I bought my first ever windows laptop with the aim of replacing windows but I have been unsuccessful. The hardware is as follows : Asus 15' F550D ...
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3answers
5k views

error: attempt read-write outside of disk `hd0`

My problem This problem has been plaguing my boot for a while, it happens about half the times I start up my computer. Grub will load successfully, and wait ten seconds for me to choose which OS to ...
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4answers
128 views

GRUB still showing windows 7 boot instead of windows 10

So, I have dual boot on my notebook which are Ubuntu and Windows 7. But recently, I upgraded my windows 7 to windows 10. But when I startup my notebook, it still shows Windows 7 instead of Windows 10. ...
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0answers
17 views

Help with botched 14.04 LTS dual boot install/Auto-boot grub fails to get into windows 8.1

First-time poster here, sorry if the title isn't written well(suggestions welcome) System specs(if helpful): AMD 750k processor Asrock FM2A55M-HD+ mobo Seagate 1TB SSHD(hd0) WD 320GB HDD(hd1) 8gb ...
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2answers
42 views

GRUB is not letting me switch to Windows 8. Dual boot process. Ubuntu 15.04

So today I just tried to do a Dual Boot with my Windows 8 desktop computer. I followed these instructions At the start, I made a 200Gb partition from my 1TB hard drive. I booted Ubuntu 15.04 by ...
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2answers
46 views

Dual boot not working (unable to load Windows) on ubuntu

I am new to linux(ubuntu) and have installed it while following different blog posts and stuff to keep my Windows installed and I hope it is. I selected Something else option while installing but now ...
3
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3answers
2k 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
27 views

Installing Linux Mint on a second hard drive [on hold]

I am wanting to dual-boot Ubuntu 14.04.2 LTS and Linux Mint 17.2. I have a custom built PC, that I built with 2 hard drives (500 GB w/ Ubuntu 14.04 and a 250 GB that will have Linux Mint on it) and ...
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0answers
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Ubuntu 14.04.2 new install - boot on recovery mode only

I have installed Ubuntu 14.02 on an old HP 540J with a dual boot Windows XP. The PC is a Pentium 4 with 2.8Gig of RAM. When I try to boot on Ubuntu from the GRU I get a black/orange page but it ...
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0answers
38 views

Cannot boot with Ubuntu

Some days ago my daughter (who has her own account on the PC) told me she could not boot the computer (A HP Compaq with Ubuntu 14.04). I do not know how it occured, if she did something wrong (I do ...
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1answer
4k views

how to add windows 8 entry to grub after boot-repair

I installed ubuntu 14.04 in a dual boot (with windows 8.1) but my pc directly boots into ubuntu. For that I did a boot-repair->recommended repair. But all I got was grub menu with an option to boot to ...
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1answer
4k views

What location to put bootloader, when running multiple drives and partition

I have Win8 on my desktop, where a 120G SSD is used to run windows and some select applications, while I have a 2TB HDD to provide basic file storage and where possible, install applications instead ...
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2answers
52k views

Why this occurs error: Diskfilter writes are not supported

This message occurs when leaving the Grub menu and before the Ubuntu splash screen. How do I fix the problem to clear the message? And what doe is it mean? error: Diskfilter writes are not ...
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0answers
15 views

Need Help Installing Ubuntu on External HD, Switching Boot Order on Windows 10

I had Windows 8.1 and upgraded to Windows 10. Smashing. Since there are some privacy things I don't like about Windows 10, I wanted to install Ubuntu as well for a sort of Dual-Boot setup to learn ...
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4answers
15k views

Trying to dual boot Ubuntu 14.10 with Windows 10, last one not detected

I have a laptop, and I'm going to install Ubuntu (I have experience, and I have successfully installed Arch Linux, Ubuntu, Fedora, Debian, Xubuntu, Kubuntu, Manjaro Linux, etc.), but installing ...
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0answers
19 views

GRUB fails to install with LVM setup

I have 1x 160GB HDD and 2x 80GB. The way I want to partition all the disks is as follows, GPT partition tables with 10GB partitions which will be LVM physical volumes. The rest of the disk space will ...
2
votes
4answers
3k views

Windows 10 upgrade lead into grub rescue

I was dual-booting Windows 7 and Linux Ubuntu on my desktop, and today is the day they gave out free Windows 10 upgrades. How exciting! I got the update, and it was installing, and I left to go take ...
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0answers
185 views

Grub2 to see new Windows 10 loader instead of Windows 8 loader

I was running a dual-boot of Ubuntu 14.04 and Windows 8 Pro. I recently took advantage of the free Windows upgrade and upgraded my Windows 8 to 10, however; whenever I start up my machine, Grub2 still ...
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0answers
58 views

Windows 10 Install screwed up Ubuntu (Dual Boot) Grub is still there

I took the plunge last night and installed the Windows 10 upgrade on my Windows 7/Ubuntu Dual boot set up. To my surprise the windows upgrade went smooth, however it has rendered Ubuntu unusable. ...
2
votes
1answer
5k views

Insmod error in grub: symbol not found:grub_realidt

I have a dual boot PC with Windows 7 and Ubuntu. I upgraded from 12.04 to 12.10 and then to 13.04 and since then I have not been able to boot because the PC goes into grub rescue with the error "File ...
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1answer
21 views

How to create a separate /boot partition after installation when dual booting?

I dual boot Arch Linux and Ubuntu. I have the following partition setup: Here sda1 is where Ubuntu is installed, Arch on sda2. New Partition #2 is the proposed /boot. sda4 is a common home for both ...
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4answers
46k views

Uninstall Grub and use Windows bootloader

I have Windows 8 pre-installed and then installed Grub with Ubuntu. Ubuntu is not my thing so now I want to remove it along with grub. From what I have learned, with UEFI, Grub does not overwrite the ...
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4answers
8k views

GRUB / os-prober doesn't see Windows 8.1 partition

I have a 1 TB HDD with seven partitions, one ~600GB for Windows and one ~300GB for Xubuntu and a bunch of assorted system partitions taking the rest of the space. I recently overwrote my Xubuntu ...
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0answers
10 views

Grub shows “lsb_release -i -s 2 …” instead of “Ubuntu”

After doing apt-get update my grub shows s "lsb_release -i -s 2 ..." instead of "Ubuntu". How to make it shows back "Ubuntu"? Of course I can edit it manually in /etc/boot/grub.cfg. But every doing ...
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2answers
231 views

Dual boot windows 8 - ubuntu ; upgrading to windows 10

I decided to upgrade my windows 8 to windows 10. During the installation process, the computer rebooted and I got into the grub console, without having my usual menu. I was able to proceed to the ...
2
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0answers
172 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 ...
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3answers
4k views

Can't access BIOS and installing a windows hard drive

Built new computer: AMD FX-8320 Eight-Core Processor × 8 9.7 GiB RAM Graphics GeForce GTX 650 Ti BOOST/PCIe/SSE2 Ubuntu 13.10 64-bit Desktop Computer 1 TB HardDrive BIOS Type, UEFI BIOS ...