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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I deleted Ubuntu and accidentally deleted Grub with it. Other OS's aren't booting now. How do I fix this?

I was running a dual-booted Ubuntu/Windows 8.1 PC. I deleted my Ubuntu partition so I could install Arch, but in doing so I also accidentally messed up Grub and deleted my Windows EFI partition. I ...
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1answer
89 views

Windows 10 and Ubuntu dual boot issues

I currently have Windows 10 Pro x64 installed (no upgrade because my PC is custom-built). Whenever I boot into the Ubuntu 14.04.2 live USB, it doesn't give me an option to install it alongside ...
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3answers
46 views

boot straight into windows no grub :(

so i installing windows fresh install i installed ubuntu but i forgot to disable secure boot as some one told me it could cause problems with boot loader so when installed finished it went straight ...
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2k views

How to install Ubuntu and boot on Toshiba Satellite?

Downloaded and burned ubuntu-14.04.1-desktop-amd64.iso. Checked md5 of iso and md5 of burned DVD. Installed 14.04.1 LTS on a new Toshiba Satellite laptop. Replaced the existing Windows 8 install. The ...
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1answer
30 views

How to access the grub boot menu in order to generate bootchart?

I am running Ubuntu Gnome 15.04, and I am wanting to generate a bootchart to help me diagnose some system problems, however in the guide it says: So how do I access the grub boot menu in order to ...
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1answer
38 views

Dell XPS is not starting

My Dell XPS (with ubuntu preinstalled on it, EDIT1: it was bought on 2014 June-July) does not start. Pressing power on button, a black screen is showing this text: Missing operating system. Operation ...
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3answers
50 views

Stuck at Grub, can't boot Win7 installation USB

A friend of mine asked me to fix his laptop, and to be honest I'm completely stumped, but he doesn't want to take it to a repair shop. I'm hoping I can get some help here. I haven't done much with ...
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3answers
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Grub rescue problem after deleting Ubuntu partition!

After I deleted Ubuntu partition, I rebooted my computer and got grub rescue problem. What I have tried so far is finding the right partition of ubuntu from grub rescue command by ls command. It ...
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2answers
279 views

Unable to shutdown, restart or logout

I am unable to shutdown, restart or logout from my ubuntu 14.04 machine. The screen goes blank, but the system hangs, then the fan begins to run fast. I have to turnoff the laptop by pressing and ...
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0answers
8 views

Deleting Windows from triple boot

I first had windows 7 in my laptop. Then I installed windows 8.1 in different partition (dual booted). Then I installed Ubuntu in different partition. Now it shows me grub showing option to boot ...
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2answers
58 views

Bootloader problem

I don't know why or how... But my boot loader have been destroyed. In this moment I have installed on my PC Windwos 8, Ubuntu 15 and Ubuntu 14 but just Ubuntu 15 have visible on bootloader.. I've try ...
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2answers
41 views

What is the difference between booting into Ubuntu normally and in recovery mode?

I have seen that the grub menu entry for recovery on my Ubuntu is : linux /boot/vmlinuz-3.16.0-45-generic root=UUID=c1f08a7e-c1e0-4409-97cb-8094359408cb ro recovery nomodeset but I didn't find ...
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1answer
21 views

Booting from flash, can't escape grub rescue

I recently wanted to reinstall Ubuntu on a partition on my PC. I used Gparted to delete the partition so that I could start fresh. I tried to boot to the usb, but it went into grub rescue mode. I ...
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2answers
46 views

Dual boot - Windows missing after installing ubuntu

I am posting a question and also post the answer as I don’t know other way around to help others. I Have been struggling from last 1 month to make dual boot on my hp laptop its hp g6-2313ax, however ...
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18 views

Installed Ubuntu 5 times and never once did grub install

Forcing a grub install and selecting Ubuntu makes it hang infinitely. There is a bug in this product when installing it along Win 7.
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56 views

Restore grub after windows 10 installation

I was dual booting ubuntu and Windows 8 happily until I upgraded to windows 10. Windows 10 boots fine but I can't boot Ubuntu. If I choose the ubuntu partition from the boot menu I'm given the grub ...
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0answers
29 views

Difficulties customising Grub2 in Ubuntu 15.04

After a fresh install of Ubuntu 15.04 and the usual run of configuring wireless drivers, I went to remove the ugly purple background from the grub menu (I am dual booting with Windows) and add my own ...
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2answers
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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 ...
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1answer
29 views

Goes to grub rescue after removing the partition with linux

I deleted the partition that had Ubuntu on it to get rid of dual boot, and now every time I try to boot to windows it goes to grub rescue, saying error: no such device 22623f... When I type ls is ...
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2answers
6k views

GRUB EFI loader cannot find its config file in /boot

I installed Ubuntu, but when I boot I go straight to Grub rescue command prompt (GNU GRUB version 2.00-19ubuntu2.1). I can get a Grub boot interface by typing: set root=(hd0,5) set ...
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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 ...
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1answer
58 views

Boot linux on external hard disk - Send Grub Rescue

installed Ubuntu 14.04 in a external hard disk because in the internal hard disk I have Windows 10 and very low space. When I try to boot the external HD, sends the Grub Recovery. I saw few ...
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1answer
136 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 ...
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44 views

/home partition deleted after installing windows 10

I had the following partition organization Disk 1 (HD 500GB) 100MB (Windows recovery partition) primary 100GB (Windows partitions) primary Extended Partition: 100GB ext4 linux partition (/home) ...
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1answer
21 views

Trying to change default OS but permissions won't allow changes to /etc/default/grub

I recently performed a reinstall of Ubuntu 14.04.3 on my hard drive. All of my files were salvaged, but I'm having some issues that I didn't have before with my root directory. I'm trying to change ...
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2answers
75 views

Dual booting windows 8.1 and ubuntu, windows automatically loads

So I recently attempted dual booting Ubuntu with Windows 8.1 on a HP Pavilion G6. So far I've gotten everything working except whenever I turn on or restart my computer, it loads straight into ...
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29 views

Grub doesn't load. Tried boot-repair

Here is the log: http://paste.ubuntu.com/12114211/ I've used a live USB stick to run the boot-repair but the loader still doesn't work. I can't boot Windows 8.1/Ubuntu from the Hard disk. Win8.1 ...
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2answers
46 views

Ubuntu and Windows boot trouble with work laptop…HELP

I'm pretty new to linux and have only had a little exposure to it. From what I've seen I really like it. What I've done is I have a laptop from my employer that I take with me on business trips. ...
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20 views

The disk drive for /home is not ready yet or not present

i, install ubuntu 14.04 recently dual booted with windows 8.1, when bootin it i created a /home partition of the HDD and when i restarted, the grub to select win. or ubu. wasn't there. i was booted in ...
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1answer
59 views

Ubuntu installed on USB, boot loader installed on hard drive

Goal: Install ubuntu 14.04 to my 32gb usb (not persistence/live-usb), and be able to boot with this usb on different computers. What happened: 1) Used a small 3gb usb and format it to live boot ...
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2answers
42 views

I have forgotten my password to my laptop, and can't access GRUB

I forgot my password to my laptop. I know the passcode in the startup that is displayed on the bottom with white stars. But, not my actual account password. I can only use it in guest mode, and that ...
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5answers
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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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23 views

Install boot loader in same partition as Windows Boot Manager

im returning to Ubuntu after a long time. I tried it in a live USB and i decided to install it. I made my "/" partition (its really neccesary to make a "/home" partition?, i dont intend to update any ...
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1answer
24 views

How to setup dual boot (non windows) and switch later

I wish to be able to dual boot into an OS (windows CE) and ubuntu, with the option to switch the default boot order later (by modifying a file on the FAT partition holding windows CE). Windows CE can ...
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1answer
50 views

Changing Default Grub Menu, Not Default OS

My question is in regards to changing my default GRUB bootoader. Not the boot order, font, image, etc. I have successfully triple booted both of my laptops. Their default OS's were both Windows 8.1, ...
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2answers
23 views

Can I use a CD instead of a USB for boot-repair

Am I capable of using a CD instead of a USB for using boot-repair to fix my grub boot loader after upgrading to windows 10?
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0answers
48 views

How to prevent the people from using 'e' to change the 'config' in grub?

I'm really stumped this time because, I've tried to configure the 10_linux & the 00_header the /boot/grub/grub.conf I've tried it many times, but unable to protect it with Password Please do ...
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0answers
21 views

Multiple GRUB_CMDLINE_LINUX_DEFAULT settings for different resolutions on Hyper-V

Ben Armstrong (Microsoft Hyper-V Virtual Manager) suggested in his blog to edit /etc/default/grub and add a parameter to GRUB_CMDLINE_LINUX_DEFAULT to change display resolution on Hyper-V. It's ...
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0answers
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Grub entry for Windows 8 boot not working [closed]

I have a dual boot configuration (Linux Mint 17.2 and Windows 8.1) on a Lenovo G505. I can boot into Linux Mint without issue but cannot boot into Windows 8.1. My boot info summary states there is ...
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1answer
44 views

Boot failure after upgrading to Ubuntu 15.04

I have Sony Vaio Fit computer with a dual boot setup of Windows 8 and Ubuntu 14.10. After upgrading to 15.04, booting into Linux fails with a number of 'builtin file not found' errors. I tried ...
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1answer
149 views

Can't boot into Windows 10 after installing Ubuntu 15.04

Here is the bootrepair link , if someone can help I would totally appreciate it thanks. http://paste.ubuntu.com/12105065/
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2answers
210 views

Add Windows 10 to GRUB OS list

I recently got a computer from school. It came with Windows 8.1 installed. I then installed another copy of Windows 8.1 (so it would use the built-in Windows Pro license) and upgraded it to Windows ...
0
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1answer
260 views

Problems installing and dual booting Ubuntu 12.4, 13.10, and 14.4.1 via pendrivelinux?

All righty, I am a bit new at this, so bear with me. I've been using windows for a long time and have a decent amount of know-how with it's interface, and I decided I wanted to try out some different ...
1
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1answer
5k views

Ubuntu server error: file '/grub/i386-pc/normal.mod' not found. grub rescue>

Hi i installed the latest Ubuntu server 14.04 and rebooted a few times perfectly and now when i last reboot it, i get the following error: error: file '/grub/i386-pc/normal.mod' not found. grub ...
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0answers
12 views

encrypted drive, /boot on usbstick that is now lost: how to recreate it from backup?

Very quickly, here is my situation: Ubuntu 14.04 Entire hard disk is encrypted using LUKS boot partition was on an external USB thumbdrive. :-( bootable thumbdrive is gone for good :-) I had a ...
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1answer
11 views

Is double-booting with Windows 7 viable with Ubuntu 14.04? Or does on have to be wiped, (Windows not pre-installed.)

My mom's old i5 Ultrabook's Hard Drive died a year ago and now I want to install Windows 7 alongside Ubuntu so I can run MS Office (I prefer it to LibreOffice.) And Steam. I also want to keep Ubuntu ...
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1answer
4k views

Start-up error (ALERT! /dev/disk/by-uuid/xxxxxxxxx does not exist. Dropping to a shell! )

I got serius problem with ubuntu 14.04 please help me. When i start my computer its says following errors: — Boot args (cat /proc/cmdline) — Check rootdelay= (did the system wait long enough?) — ...
2
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1answer
2k views

Is running Burg on 15.04 possible?

Is it possible to have grub2 replaced with burg on Ubuntu 15.04? I had it on 14.04 but I'm struggling to get it on 15.04, does there need to be in a repository for 15.04 or something like that? If so, ...
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3answers
49 views

Cannot boot laptop after copying partitions to new HDD

I changed the HDD of my laptop for an SSD. It is a Dell XPS 15, that came with Windows, on which I installed Ubuntu, and has been working for 3 years. The HDD was setup with several partitions, ...
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46 views

After boot repair, Windows does not boot

Following are the steps till I purchased my computer Installed windows 7 Installed Ubuntu There was no boot option, and ubuntu automatically boot, leaving me no option to boot my windows I used ...