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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Problems installing and booting Ubuntu/Grub

I want to install Ubuntu alongside Windows, with it being on an external hard drive. My windows installation is on an internal SSD. I've gone through the installation but I get this message toward ...
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Error in trying to boot-up after a fresh install of Ubuntu 14.04 or 14.10

The error I keep getting, after a fresh install (first boot-up) of Ubuntu 14.04 or 14.10 is as follows :- error : file "/boot/grub/i386-pc/normal.mod" not found. Has anyone got a fix for this ? ...
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Ubuntu signed Grub do not prefix tftp-root directory for tftp requests

$ lsb_release -rd Description: Ubuntu 14.04.1 LTS Release: 14.04 dpkg -l grub-efi-amd64-signed Desired=Unknown/Install/Remove/Purge/Hold | ...
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43 views

Syslinux error (1) on 8GB< drive

I have a problem when I try to install Syslinux to my USB flash drive. I have tried these three steps: Re-formatting the drives; this includes re-partitioning. Disabling all security mechanisms ...
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109 views

How to uninstall Lubuntu 14.04.1 in a dual boot (Windows 7/Lubuntu) system

I installed Lubuntu 14.04.1 on a USB flash drive in a windows 7 system. Now every time i turn the computer on it boots to grub rescue. To enter to both Lubuntu or Windows I have to enter to BIOS boot ...
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51 views

Windows 7 not in GRUB menu

I've installed Ubuntu 14 alongside Windows 7. After installing the ext4 partition through the Ubuntu installer and getting it running, Windows 7 appeared in the grub2 menu at boot but did not load ...
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2answers
62 views

Recovering grub using Ubuntu Live USB

I have Ubuntu 14.04 (64-bit) installed on a Dell server. I wanted to use one of the earlier kernel versions and I edited /etc/default/grub for this. It seems like I made something wrong. After ...
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134 views

Ubuntu 14.04.1 LTS user tty1 no graphics and only black screen text command how can I have normal ubuntu back?

I had ubuntu running well after upgrading to trusty had some problems with grub, fixed that Then I had problems with Ubuntu Now on startup I have new grub menu with boots enabled on every drive Going ...
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75 views

after fixing GRUB dual boot not working

I use ubuntu 14.04 and windows 8 on my HP laptop. I just made some hard disk partitions and after then faced grub rescue. After fixing GRUB I got: way to boot (grub rescue> set ...
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1answer
94 views

Rezising Linux Partition which contains the ubuntu OS in 14.04 LTS

I was trying to extend my / partition using ubuntu live cd after installation done before 6 months. For installing a software i needed 9GB more space in my root partition. The size of the root ...
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30 views

Laptop discharged while upgrading to 14.10

I was upgrading to 14.10 from 14.04 today, and I was halfway through the process. It was on the "adding packages" stage. I left my laptop, but soon the battery discharged and when I later booted it, ...
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80 views

Formating SSD prior to install multiple OS

Maybe it's a stupid question but is it possible to partition a brand new ssd 500Gb before installing any OS on it? I would like to install Win 7 64bit home premium and linux ubuntu or mint as the ...
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107 views

How to add software RAID-1 to an existing non-RAID system?

I couldn't find any tutorials for converting a non-RAID system (Ubuntu 14.04 in my case) into a disk-level RAID-1 system after installing a second disk (/dev/sdb) Is the following correct? sgdisk ...
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56 views

Essentially, it won't boot properly

Okay, I'll start at the beginning. Earlier this year, I installed elementary os luna (based on Ubuntu 12.04) in dual boot with Windows 8.1 - an update to Windows 8, which was an upgrade to Windows 7, ...
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40 views

grub rescue with dual boot 14.04

I have dual booted Ubuntu from a usb. I installed it, and at first it was going slow. I then rebooted the whole system and tried to log in. again, was moving slow (move mouse and cursor would lag ...
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83 views

MacBook Pro Retina: where to install Grub?

This guide explains how to install Ubuntu Saucy/Trusty on a MacBook Pro (11,1). However it doesn't say where one should install grub: should it be in /dev/sda (the hard disk) or in /dev/sdaN (for ...
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44 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 ...
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110 views

Backup LVM snapshots and Grub2 problem

Long story short, I'm using obnam to take backups of my system. This is what I do: take LVM snapshot of /, /usr, /boot, /var, /home mount the snapshots on /bck-snapshots, /bck-snapshots/usr, ...
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66 views

No grub after upgrading from 14.04 to 14.10 [duplicate]

After the ubuntu upgrade from 14.04 to 14.10,system goes to black screen without any grub on booting(even the right shift key didnt bring up the grub).However if i choose BIOS and exit without any ...
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242 views

lubuntu not boots

I have one old pc that Windows XP even got performance problems in time that caused me to give one lite linux distro try to make this pc useful for web surfing mainly. I dont want dual boot, or need ...
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1answer
121 views

Ubuntu, ElementaryOS and Windows Grub Broken

The other day, I decided that, in addition to Ubuntu, I'd like to try ElementaryOS. So, I made another partition, and installed on that partition (sda5). In the installer, there was a box that said to ...
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1answer
45 views

Grub2 Timeout is Too Short [closed]

I wanted to set grub2 timeout to 0 seconds so that it skips the boot menu screen. In 14.04, it doesn't do that so I set the timeout to 0.5 seconds. Now it's too fast for me to select which OS to use ...
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44 views

Cant boot after cancelling MiniTool Partition Wizard

I wanted to resize the windows partition using gparted but it wont work, so i used Mini Tool Partition wizard. After first step was made it started to wipe an unallocated space (my wrong) so i ...
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39 views

Encrypted Windows 8.1 + Ubuntu 14 on separate SSDs

I've found many questions concerning dual booting Windows/Ubuntu on separate drives, but I'm not sure about doing it when the Windows 8.1 drive is encrypted with BitLocker. How would I go about ...
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25 views

How to change sda2 to sda5

I am with Ubuntu14.04 LTS. After deleting sda2 extended & sda5 Linux swap (as a part of increasing swap area), sda5 swap area changed to sda2. madhu@madhu-desktop:~$ swapon -s Filename Type ...
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39 views

MacBook Pro 1,1 Not Detecting Grub?

I just installed Ubuntu 14.10 on my MacBookPro 1,1. The installation went okay, however GRUB does not work. It's not even detected. I can not bless the Linux disc due to a wiping of OSX. I do not ...
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18 views

Windows VBox ubuntu vdi Error: unknown filesystem … grub rescue

Win 2003 Server --> Virtual Box --> Ubuntu 14 After running chkdsk/f on Win 2003 one VM (.vdi) stopped working Error: unknown filesystem. Entering rescue mode... grub rescue> _ And there it hangs. ...
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After installing Ubuntu 14.04 over 12.04, it boots straight to Ubuntu

even though I have windows 8.1 installed on separate partition. how can I boot to windows, or preferably, how can I be able to choose which OS to boot via grub? Lenovo Y580 EDIT: i wasn't updating ...
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29 views

Trouble with GRUB

I wanted to remove my Ubuntu part of my Ubuntu and Win 8 dualboot, so I deleted the Ubuntu partition, ran EasyBCD and rebooted the computer. Grub was still there. So I read some guide that told me to ...
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2answers
128 views

Ubuntu 14.04 + Windows 7, cannot boot into Windows

I have spent a day trying every suggestion I can find and using the ArchWiki tutorial. No luck. Here's the situation: I have Ubuntu 14.04 LTS installed on /dev/sdb (installed first). I have Windows 7 ...
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37 views

Ubuntu Windows Dual boot on the same drive problem [duplicate]

Here's what I did I have an SSD and regular hard drive I installed Ubuntu 13.10 on SSD and Windows on the regular hard drive everything is in harmony Then created another partition on the SSD and ...
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26 views

Laptop boots to grub prompt (not rescue) on boot

I have an Asus X502C laptop running Windows 8.1 64 bit and Ubuntu 14.04 64 Bit. The settings I used for the install (in bios) were: Secure Boot: Off, UEFI mode: On. I created a 31.5 GB partition in ...
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203 views

Gave up waiting for root device ubuntu 14.10

I have recently installed Ubuntu 14.10 (kernel v3.16.0-23) I am new to Linux environment and learning how to compile-install-boot new kernel image. I downloaded kernel 3.17.2. Compiled and built the ...
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3answers
114 views

How to verify Swap area functioning?

After increasing the Swap area and RAM size, the /dev/sda2 has become the Swap area and there is change in the UUID of swap. When the Ubuntu icon appears first after booting, a long line shows some ...
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20 views

Re-installing ubuntu to format my dual-boot system configuration?

I decided to try out the new windows 8 (then 8.1) when buying a new computer to be able to run microsoft software cleanly. I still installed ubuntu as a dual-boot system (splitting my drive's space ...
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100 views

Plymouth not launching on startup?

So I recently upgraded to Ubuntu 14.10. Steam started having the "GLX context does not support direct rendering" issue, so I decided to go into Software & Updates to switch my graphics driver to ...
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23 views

Where to install Grub on a RAID0 HDD?

Where do I install Grub ? Here are the choices I have /dev/mapper/isw_difechbgae_Volume0 Linux device-mapper(striped)(3.0TB) /dev/mapper/isw_difechbgae_Volume0p1 Linux ...
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102 views

I can not boot directly into Text Mode in 14.10

I want my Ubuntu 14.10 system to boot directly into command line, so I changed the grub file in (/etc/default/grub) like this : (#)GRUB_CMDLINE_LINUX_DEFAULT=”quiet” GRUB_CMDLINE_LINUX=”text” ...
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1answer
263 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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140 views

grub rescue> unknown command “kernel”

I have Ubuntu 12.04 installed on my laptop, everything worked fine, but today I got this message: error: hd0 out of disk. grub rescue> This happened to me before, and usually I solved it with ...
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2answers
63 views

Windows 8.1 not coming up in boot options?

So I made a 200gb partition out of my 2tb HDD for ubuntu 14.04.1 and followed ALL the instructions listed in this video: https://www.youtube.com/watch?v=hOz66FC0pWU Yet when I reboot I only get the ...
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1answer
39 views

Ubuntu didn't install boot menu!

I installed Ubuntu on a netbook from a usb flash drive but after the restart there is no grub menu and just Windows starts. How to add the boot menu for ubuntu? The netbook doesn't have a cd but I can ...
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1answer
51 views

How do I customize GRUB to choose enter the text mode or enter the graphical mode

How do I customize GRUB so every time booting I could choose whether I want to boot into text mode or boot into graphical mode. I have try to edit /etc/default/grub and change ...
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1answer
107 views

Ubuntu attempt to read or write outside of disk, entering rescue mode

Ubuntu 12 and now Ubuntu 14.10 do not boot, they drop out into grub rescue saying "error: attempt to read or write outside of disk 'hd1'. I had no problems a couple of years ago with v10 but thought ...
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99 views

rEFInd on dual boot with windows 8.1 on UEFI

After a fair bit of trouble I got linux (actually its mint - hope I'm not breaking the rules) installed alongside windows 8.1. When I switch on the laptop (Dell XPS 15 9530) I get a grub manager with ...
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47 views

Plymouth skipping

I have set up a background image for grub.And I want that background image to be present during the loading stage of Ubuntu as well.Basically when plymouth is usually doing its job.Basically no ...
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22 views

Cannot find ubuntu on grub after installation

So I want to have dual boot in my laptop that already has Windows 8. Installation was successful, but Windows 8 didn't appear on grub. it had some error with /endentire. With some work around that I ...
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7 views

Boot repair did not fix Grub2

This question was asked before, but I looked at all the answers and none of them worked. I have windows 8 and ubuntu 14. I applied boot-repair using an ubuntu 14 live usb. It finished saying there ...
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163 views

Restore EFI System Partition to state before installing Ubuntu

I found this thread that says how to delete GRUB2 Uninstalling GRUB from UEFI laptop But I'm not sure if it applies to me or if I'm doing the things correctly, I'll attach a few screenshots about the ...
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37 views

Trusted GRUB catch-22

I've recently noticed that GRUB is capable of performing signature checks and software-based secure boot operations. I wanted to give it a try, so I followed the instructions here and executed sudo ...