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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Grub fails to install - core.img 'unusually large'

When trying to resurrect my (t)rusty 'ol router who's system disk (CF card) had failed (probably because I neglected to tune Ubuntu properly for this type of media), I wanted to use the opportunity to ...
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19 views

How would i go about manuall recreating the process that unetbootin uses to create a bootable USB?

Would i simply create a bootable grub install and copy the files from the iso over, then edit the commands as needed?
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Ubuntu UEFI Windows 8.1 Dual Boot

I have installed Win8 and Ubuntu side by side before in the past and had issues with booting which were fixed perfectly the first time using boot-repair. This time, I installed Win8.1 and Ubuntu with ...
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195 views

GRUB doesn't render correctly in 1920x1080

I have put those lines into /etc/default/grub: GRUB_GFXMODE=1920x1080x32 GRUB_GFXPAYLOAD_LINUX=1920x1080x32 (of course, update-grub was done after that) However, GRUB doesn't look right - it has ...
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321 views

Xorg can't find screens

I recently installed Ubuntu 12.10 on my laptop. It installed successfully, but whenever I boot into it, after the GRUB screen I get a text TTY. I can log in with that and enter command-line commands. ...
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75 views

Is there any kind of relationship between Windows and Ubuntu installation?

I've just experienced incredibly weird behavior in Ubuntu. I've written lately some questions here regarding my shitty tablet not working correctly in Ubuntu 13.10 . I've left it that way having it ...
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33 views

Can't boot after Kubuntu 13.10 installation with Windows 8 Dual Boot

I installed Kubuntu 13.10 with Dual Boot Windows 8.1 via USB. After reboot i got the prompt: Minimal BASH-like line editing is supported I already tried to fix it with boot-repair, but nothing ...
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171 views

Boot Repair doesn't work after Windows 8.1 Update

(The original title of this post was "Boot Repair doesn't work after April 2014 Windows 8.1 Update" since I wanted to highlight that this is not about the 8.0 -> 8.1 update, but the update for 8.1 ...
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64 views

How can I get Ubuntu and Windows XP to dual boot? (solved)

I tried to install Ubuntu 12.04 alongside Windows XP Home. Everything appeared to be progressing normally and I was prompted to eject the CD and reboot. The result was: error: no such device: ...
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64 views

Windows 7 hangs up after Ubuntu dual-boot installation

I recently installed Ubuntu 13.10 using the Linux Live USB creator to create a live USB and then booting/installing from that drive. Everything seemed to go smoothly. I first tested booting Ubuntu ...
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78 views

Installing Ubuntu on external hard drive (boots to black screen)

Hey everyone this is my first post here on the askUbuntu forums. I've been an avid Linux user for over a year now but by no means an expert. The problem I'm facing is one I have not been able to ...
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64 views

Consolidating hard disks into one machine leads to GRUB “A disk read error occurred” with Win7

Situation: My older Win7 laptop died (power issues). My new Kubuntu computer has an extra drive bay, so I'm trying to get dual boot to make them play nice together in the same machine. Both drives ...
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114 views

Broken chainloader after cloning drive

I have a multiboot system with Windows XP and Ubuntu 13.04. I use Grub 2 to boot from the MBR to a chainloader in the Ubuntu partition, and the chainloader gives me the option of booting to XP or ...
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63 views

Dual Partion windows not working ?

I originally set up Ubuntu "along side" widows(Vista) and realized it was done though wubi after I tried to set up a VB and didn't have enough room. I then repartitioned the HD and did a stand alone ...
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221 views

Installing linux on OCZ RevoDrive3 x2

First of all, here is the configuration of my computer: Motherboard: Asus H87Plus RAM: Corsair Vengeance 32GB Processor: Intel i7 4770 Drive: OCZ RevoDrive 3 x2 (240 GB) (OCZ Revodrive3 is a PCIe ...
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184 views

Kernel panic after updating to linux kernel 3.8.0-32

I'm getting the following errors after upgrading to the newest kernel: VFS: Cannot open root device "UUID=1f09d896-51ad-47b8-8e62-c289906e527a" in unknown-block(0,0) Please append a correct "root=" ...
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201 views

Dual Boot System: Windows 8 starts up with black screen if started from GRUB

i don't even know if this problem has anything to do with GRUB or Ubuntu. It could be just a hardware problem. my problem started after i installed my new graphics card (Radeon HD7970). Everything ...
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127 views

Issue with booting/rebooting behavior when using a bootable SD Card

So, here's what I have: A bootable SD Card, with a minimal Ubuntu installation. A bootable USB stick, with exactly the same filesystem image. A Shuttle PC (much like the XS35V2 Digital Signage Media ...
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7k views

A Guide to Install Ubuntu 13.04 using a RAID 0

Getting the error: Unable to install grub in /dev/sda? Because you are using a BIOS/fakeRAID0? If you manage to find this thread consider yourself in luck. I spent the last 48 hours trying to figure ...
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516 views

ubuntu server 13.04 - black screen after grub update - mbp 2006

BACKGROUND Hard drive died on 2006 Macbook Pro with nVidia graphics card. Replaced HD with 320 GB Western Digital. Created, booted and installed Ubuntu 13.04 from USB. No problems with the install. ...
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291 views

How to fix Grub loader that hangs and waits for user with read only root partition?

I am trying to create a set of Ubuntu 12.04 slave systems that have a read only root partition and a small read/write partition mounted for a single user. These systems will be used for a short job ...
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186 views

Nvidia Optimus / Purple screen at boot

I have a ThinkPad T430 with an Nvidia NVS 5400M dual booting Raring and Windows 8. If I boot directly into Ubuntu or reboot Ubuntu then the system boots with a purple screen directly after grub. It's ...
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658 views

How to boot Ubuntu 12.04.2 LTS with UEFI, Nvidia graphics and dm_crypt encrypted LVM

I've just gotten 3 new systems, with Nvidia GTX 660 graphics, Z77 chipset and AMI UEFI BIOS. I've installed Ubuntu 12.04.2 LTS from the Alternate Installer in order to install onto an encrypted LVM ...
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Ubuntu 13.04 - Black screen with unresponsive cursor

Few days ago I installed ubuntu 13.04 on a new machine without big issues. Today, after the boot, I have this situation: grub correctly loaded and normal boot normal purple screen with red dots ...
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75 views

grub customizer broken after changing grub backround image option

As you can see from the paste I have a dual boot laptop with win7 and Ubuntu 12.10. The grub broken after messing around with background picture with grub customizer.I didn't proceed to any change ...
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320 views

ATI HD 6320 ASUS Brightness doesn't change

When i press Function + [F5 or F6] to increase or decrease the brightness, the adjustment display on top right pops out and the slider moves but the screen brightness remains the same. i've done ...
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141 views

Setting up a bootable usb iso

So, I've got an ext3 partition on a removable USB device. Its /dev/sdb1 on my system. After mounting this partition: sudo mount /dev/sdb1 /mnt/USB I install grub on it: sudo grub-install ...
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118 views

Attempt to install Ubuntu 12.10 from Windows but get GRUB instead

I have a Ubuntu ISO that I have just downloaded from ubuntu.com and used the Windows Installer (Wubi) to install Ubuntu, but when it boots, instead of Ubuntu I get some GRUB ... something. I have ...
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952 views

Installing 12.04LTS Server on a Fake RAID10

Scenario Install Ubuntu 12.04LTS Server on a RAID10 with boot on a RAID1. 4 - 2Tb SATA Hard Drives 3 Partitions (/boot, /, and swap) boot (256Mb from each disk) setup in RAID1 /dev/md0 partition ...
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474 views

Cannot get windows 8 to boot after ubuntu 12.10 install (different hdds)

I just took the plunge into Linux, with Ubuntu 12.10. Not knowing if I would like Ubuntu enough for it to become my main OS, I installed it alongside of my existing OS, windows 8. When installing ...
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270 views

Grub Customizer does not start

I recently installed Ubuntu 12.10 as a second OS dual-booting with Windows. And by default I need to boot to Windows. So, I decided to install Grub Customizer through the terminal: sudo ...
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60 views

Change Bootloader title to include bit

Secondlife runs on 32 bit linux. I've tried WINE, Crossover, and installing the 32 bit libraries. Nothing has worked so now I'm having to install a 32 bit copy of Ubuntu as a second partition just to ...
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289 views

Grub Customizer Error on startup

I cant start Grub Customizer in ubuntu 12.04 after updating the kernel: exception '15AssertException' with message 'found unexpected file on path: /etc/grub.d/10_linux' in ...
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254 views

when installing /boot inside a lvm group, where do I install the boot loader?

I am setting a personal file/cloud server based on ubuntu server 12.04 and owncloud but there are certain things about the partitioning that I can't get my head around... Let's say for example I want ...
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587 views

How can I fix this error file /boot/grub2/i386-pc/normal.mod not found

I recently replaced Windows 7 with Ubuntu 12.10. I chose the option to replace windows so I am not dual booting. I am currently running off a flash drive since after I tried the install the error ...
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122 views

Copying data from Centos hard drive to Ubuntu

I have a 2 PCs wiht ubuntu 10.04 and centos 5.8 installed.I want to copy all the data from Centos hard drive to one with ubuntu. How can I do this ??? I have tried directly plugging centos hard drive ...
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170 views

ubuntu 12.04 Booting error

i have ubuntu 12.04 downloaded along side my windows 7 sony viao laptop, ive used it for a couple of months, yesterday i decided to boot onto windows then it did something that messed up ubuntu. when ...
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2k views

“hd0 out of disk” / “hd0 write error” (still boots)

I was doing a series of upgrades of my desktop which had 10.04, aiming for 12.04. Somewhere in the middle, GRUB began displaying "error: hd0 out of disk / press any key to continue", but the boot ...
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725 views

How to fix GRUB on dualboot with Windows7 and Ubuntu?

I am a relatively recent user of Linux. I had several releases of Ubuntu installed on my laptop working in dual-boot and never had any issues. Recently, I installed openSUSE because I thought it ...
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334 views

Edit Windows Boot Loader from Ubuntu

I am using Ubuntu 12.10, and Windows 7. I accidentally removed the Windows option from the Windows Boot Loader using EasyBCD. I do not know how to access the windows boot loader configuration files. I ...
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641 views

grub menu resolution problem on ubuntu 12.10

When I cold boot Ubuntu 12.10, the Grub menu font is stretched and the background doesn't cover the entire screen, like it's 640x800 resolution. If I reboot the grub menu is perfect, no font or size ...
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174 views

Boot in virtual console mode with full resolution

I am able to either: 1) Boot into X, switch to virtual console #1 and use it at full resolution or 2) Boot into virtual console mode -only and use them with 80 columns max How can I boot into ...
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369 views

error: no device connected

I did a fresh install of 12.04 by usb and it went fine, worked on it for several days, but one day the browser crashed and i reset the machine, after that I get this error when i boot; error: no ...
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86 views

Two Ubuntus in my grub bootloader

I have a problem: I have Windows 7 installed on my notebook. I wanted to install ubuntu on it. So I did. Then I removed Ubuntu because of several lags. And when I rebooted, it still showed Ubuntu in ...
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Simple way to rename GRUB2 entries

I have many different Ubuntu versions installed on my HD. I'd like to rename some of their entries in GRUB2 boot menu. I have tried two approaches. 1) Like mentioned in ...
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145 views

Rollback instead of completing dpkg-configure -a?

On a new VPS, aptitude dist-upgrade hangs during /usr/sbin/grub. Now, aptitude is in a bad state: dpkg was interrupted, you must manually run 'sudo dpkg --configure -a' to correct the problem. I ...
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466 views

Server 12.04 boots to Grub CLI

Yesterday, I rebooted the server and it booted up to grub. Screen says 'Minimal BASH-like .... etc'. I've tried booting to the Server rescue mode from the install disk and tried reinstalling grub. ...
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23 views

HDD and USB drives refuses to boot, just sends me to Grub-Rescue

I have 2 Hard drives installed in my computer. On one hard drive, I had Ubuntu 14.04 and the other was a Windows 7 HDD. Today I had to delete the Ubuntu HDD. I did this from my Win7 Partition ...
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30 views

Booting problems after update

Yesterday I updated my laptop (Lenovo ThinkPad T440p) to Ubuntu 14.04. Afterwards I restarted the laptop, but the operating system wouldn't start. I can''t get into the booting menu to choose Ubuntu ...
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23 views

Ubuntu scripts/init.bottom Hang

I am trying to boot my 12.04 ubuntu server, and I am getting hung on: Begin: Running /scripts/init-bottom ... done. This is in a VM on HyperV. I have tried fsck, tried going into recovery mode and ...