Questions about the bootup process in Ubuntu. Use this tag if you have trouble booting Ubuntu or you have questions about the bootup process.

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Does the Ubuntu kernel have EFI stub loader boot support?

This question is regarding efistub booting. I would like load the stock pre-compiled Ubuntu kernel directly from UEFI firmware its boot menu, using efiboogmgr. Since which Ubuntu version can this ...
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2answers
352 views

Ubuntu update caused system to freeze on boot at purple screen. Recovery mode fails and brings up BusyBox

I've searched through existing questions, but nothing addresses my problem. My system running Ubuntu 14.04 went through a partial-update a few days ago. Ever since, my system will not boot. It ...
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0answers
81 views

Blank screen after update this week on two different computers [closed]

I have two older style laptops - a Toshiba Satellite Pro A200 and a Fujitsu Amilo Li 1818. They are both set up using a dual boot to either run Windows 7 Professional or the latest version of Ubuntu. ...
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1answer
2k views

Network booting could't find kernel image

I have a problem with PXE booting. I followed this instruction on official website. But I get an error on client machine: Could not find kernel image: vmlinuz-3.13.0-24-generic And now, question. ...
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2answers
249 views

How to bring up a network interface only if it is physically present in Ubuntu 14.04?

This is a follow-up on my old question: What would be the best way to make kernel bring a network interface up only if it is physically plugged in? So, if it doesn't exist, just move on with ...
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1answer
834 views

How to boot Ubuntu after installing Windows using BootCamp

I have had the need to create a working Ubuntu 64-bit and Windows 7 pro 64-bit dual booting system of late and decided my Macbook Pro 8.2 15". I had previously removed the Mac OS X from it as it was ...
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5answers
2k views

Windows 7/Ubuntu dual boot help? [duplicate]

I installed ubuntu and was running it for a month before I wanted windows back to run some programs that I couldn't run on ubuntu. I had accidentally deleted my recovery partition and overwrote ...
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3answers
841 views

How to install Ubuntu 14.04 LTS on Windows 8?

I own HP J110TX Laptop running Windows 8 on it. I want to install Ubuntu 14.04 LTS along side windows. I have downloaded ubuntu-14.04-desktop-i386 iso. I tried creating bootable USB drive through ...
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2answers
841 views

Try to install Ubuntu - MD5 Check Sums Different

So to start off, the reason I came to be in this predicament is because my desktop crashed. It was originally running windows 8.1, which I'm not too fond of. I didn't have the windows disk and because ...
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1answer
363 views

Bootable ISO Disk doesn't work on Acer 1362 laptop

I have a 9-y/o Acer 1362LCi laptop that I want to convert to a Linux machine,since it is no longer useful as a windows machine. i made an iso dvd that is bootable from a win7 desktop, but it hangs ...
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0answers
76 views

Automatically detecting and outputing to s-video at startup

After combing the Internet I have developed a script that is capable of checking whether I have a monitor connected to my VGA port and switching to my s-video port if not #!/bin/bash # if no vga then ...
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2answers
746 views

Can't enter windows after re-installing ubuntu 14 grub

I know there are a lot of threads with this problem, but still I can't find one that can actually help me. I was running ubuntu 14.04 LTS on a dual-boot with the preinstalled windows 8.1 that came ...
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2answers
4k views

Ubuntu 14.04 boot error

Ubuntu runs smoothly on my system but after updating it created a critical problem. When I start my computer its says following errors: — Boot args (cat /proc/cmdline) — Check rootdelay= (did ...
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1answer
803 views

Can't restore GRUB after upgrade to 14.04 (“grub_term_highlight_color” bug)

I recently upgraded from 13.10 to 14.04 and, as dozens of other people, I was gifted with the grub_term_highlight_color bug. I then tried to restore GRUB by booting from a live CD and using ...
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2answers
4k views

How to Dual Boot Ubuntu 14.04 LTS and Windows 8?

I have a HP Pavillion Sleekbook Touchsmart PC with 4GB RAM and 500GB hard disk. I want to dual boot Windows 8(which came preloaded) with Ubuntu 14.04 LTS. There are 4 partitions of the hard drive as ...
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1answer
8k views

Ubuntu 14.04 LTS release doesn't boot after being installed

I used Linux live USB creator to make a live disk of Ubuntu 14.04. I booted it up, chose "Something Else" and manually made a 58GB partition and a 4GB swap space. The install seemed to work, and ...
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4answers
4k views

BIOS not detecting boot files for 14.04LTS single OS installation

I am consistently getting the ERROR: No boot disk has been detected or the disk has failed. message when trying to boot a single OS Ubuntu 14.04LTS setup. I have a brand new Packard Bell L4875-i5 ...
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1answer
1k views

Live USB Stuck at Syslinux

Whenever I try and boot up any distro I get stuck at the syslinux line with a blinking cursor. I know this question has been asked many times before but every answer I found is from years ago, which ...
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2answers
115 views

No os detected after Ubuntu install

New to linux and trying to set up everything. So i had Win 7 before, i made a partition for win, it created smaller one for its data, around 100 mb. And a partition for linux that I will use later. So ...
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1answer
3k views

How to fix boot issue ? VFS: cannot open root device “mapper/x” or unknown-block(0,0)

I've got ubuntu 12.04 running as a virtualserver on virtualbox. Last night there was a power surge and this morning I can't boot my virtual server. I get a long error message. I picked this up: ...
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2answers
2k views

Booting ubuntu via VirtualBox on Win7 goes to black screen after this prompt

![GNU GRUB Screen]http://imgur.com/oUg6f5S 99% of the time The first option is selected by VirtualBox in under 3 seconds, the other 1% it pauses for me to actually choose. No matter the option I ...
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0answers
807 views

issue booting 14.04 on macbook air [closed]

Filed as bug https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1284085 tracking there. I'm attempting to install and run 14.04 trusty on a macbook air in a dual boot configuration. I have a Mac ...
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1answer
3k views

Windows Boot Partition was deleted after re installing Ubuntu 13.10 and can not boot into Windows

A while ago I tried installing nVidia drivers for Ubuntu and ended up completely messing up my system so I left a broken Ubuntu on my SSD and used the Windows 8 installation on my normal hard drive ...
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1answer
3k views

Formatted Partition and now I have Grub Rescue Error

I done goofed. I decided that I really didn't need Ubuntu anymore (and that I wanted to give Mint a try) so instead of doing a smart thing I went ahead and wiped the partition that Linux was running ...
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2answers
392 views

Whenever I boot I get Visual Artifacts, why? Is there a way to fix it?

I have a desktop with a old Nvidia 6150SE Nforce 430 and I can't boot up every time I try the system shows the desktop wallpaper and a cursor and then freezes and shows me a colorful pattern across ...
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1answer
2k views

USB imagewriter not in software center

Imagewriter appears to be missing from newer Ubuntu release repositories. Is there a problem here? How to get imagewriter with Ubuntu 13.04?
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1answer
7k views

Windows 8.1 is Completely Blocking Ubuntu [duplicate]

A few days ago, I upgraded my Windows 8 Lenovo U410 ideapad to Windows 8.1, and it proved to be a terrible mistake. It seems like the only visible change that it has made is adding the start button. ...
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1answer
855 views

Combine Multiple ISO Files To Burn A Single Bootable ISO Image [duplicate]

I have three ISO files : "ubuntu-10.10-desktop-i386.iso", "ubuntu-11.10-desktop-amd64.iso, "ubuntu-13.04-desktop-i386.iso " I want to combine those multiple ISO files and want to burn a single ISO ...
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1answer
5k views

How to revert back to GUI as the default interface from CLI in Ubuntu desktop?

I was able to set up a text-only UI (CLI) by editing the file /etc/default/grub in Ubuntu 12.04 as per the instructions in: How do I disable X (GUI) at boot so that the system boots in CLI mode? using ...
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1answer
2k views

Kernel panic after attempting to install glibc

I was installing glibc v2.18 and suddenly the install (make install) halts with an error. Afterwards, any basic terminal commands (ls, sudo, etc.) and attempting to perform system operations ...
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0answers
30 views

How do I select which OS to boot with no keyboard on a laptop? Can I adjust GRUB loader settings from the booted Ubuntu OS? [duplicate]

Well, the title says it all, basically. I am dual booting Windows 7 and Ubuntu 13.04 on my laptop, that has no keyboard. I am wondering how I would go about switching to Windows 7 (Ubuntu is the first ...
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2answers
1k views

Can't boot into GUI after removing Ubuntu Desktop to get pure Lubuntu

I followed the instructions at this site to get pure Lubuntu. Unfortunately, after doing so my computer will no longer boot into the GUI. I'm able to switch over to a terminal just fine, but the GUI ...
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1answer
470 views

Skip rc.local while booting

I'm running ubuntu-10.04.2-server, accidentally somebody put command "reboot" on rc.local, so when i started ubuntu it always restarting, can i force ubuntu to not load rc.local? thank you
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1answer
3k views

A USB flash drive failed to boot ubuntu

I tried to make a bootable Ubuntu 12.04 LTS on my KINGSTON Flash drive. But somehow it always fail to boot. I obtain the *.iso from http://www.ubuntu.com/download/desktop, and I use unetbootin on my ...
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1answer
761 views

Ubuntu 13.04 purple screen of death and kernel panic [closed]

I'm trying to install Ubuntu 13.04 64-bit from a USB startup disc on a new SSD drive. The installation completes without a problem, but on the first boot I get a blank purple screen (this is when I ...
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1answer
100 views

does running linux off a usb drive require a proper functioning internal hard disk

I have a laptop with windows 7 installed on it. Somehow my internal hard disk failed and now windows wont boot anymore(it wont let me repair or install a new copy of windows). So i tried to run Linux ...
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6answers
17k views

How can I create a bootable iso from an extracted Ubuntu 13.04 iso?

I have an extracted copy of Ubuntu 13.04 iso (live CD), but if I burn it directly it will not boot. Is there any way to create a bootable iso so that I can burn it to a DVD or USB flash drive? I ...
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1answer
8k views

Error when booting, “Broken pipe”

When I reboot my computer, a black screen appeared with the following message: could not write bytes: Broken pipe * Stopping save kernel messages... [ok] * Checking ...
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2answers
7k views

Xubuntu 13.04 boots to command line instead of GUI. How to get back GUI?

I have Xubuntu 13.04 on my desktop as a dual-boot system with XP. Installed it at first time two days ago and suddenly got this problem. Write my question from good old troubleproof Windows XP (long ...
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1answer
1k views

Ubuntu not booting from CD or USB, how can I make sure OS finds my drive?

I've been trying several different installation methods to install Ubuntu on my partition. No matter what kind of installation type (CD or USB), I get the same error message. At first I assumed I was ...
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1answer
993 views

Hang after “Try Ubuntu”

Just to start things of smooth, please be noted that I have extremely little foreknowledge of Ubuntu, and operating multi(dual)boots. I have attempted to make a bootable USB for Ubuntu 13.04 ...
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2answers
3k views

Can not boot 12.04LTS from USB HDD [duplicate]

I have installed Ubuntu 12.04LTS on an external USB HDD, and put the bootloader onto the same drive. This is so I can interrupt the boot sequence on the PC and force the system to boot from the ...
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1answer
243 views

Grub menu not appearing after reinstall and boot repair

I reinstalled Ubuntu (it was working right) and now the Grub menu is not appearing. I've used the Boot Repair tool too, it just shows a black screen and the underline flashing. ...
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0answers
371 views

Cannot do fresh install of Ubuntu 13.04 while booting from DVD: “soft lockup” bug [closed]

Hello Ubunutu Community! I'm trying to do fresh install of Ubuntu 13.04 to completely replace Windows 7. I downloaded 32 bit version of Ubuntu 13.04 from this website, burned the image to DVD (I made ...
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0answers
35 views

Can't install Ubuntu, GRUB stage1.5read error… new to ubuntu [duplicate]

ok so i have been struggling with this for the whole day now and i really need help. im new to ubuntu but i cant even get off the floor with it this is an install problem the OS works fine from the CD ...
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1answer
2k views

I can't install Ubuntu 13.04 on a new computer

I managed to install Ubuntu 13.04 by disabling "Virtualization Technology" in my BIOS (which I believe let's me operate several OS's) and changing in GRUB2 quiet splash to quiet splash nomodeset. ...
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1answer
2k views

No dual boot option, no boot priority order

I installed Ubuntu yesterday. I partitioned my C: when it was asked to give memory allocation to Ubuntu. The version is 12.04. I was able to install Ubuntu completely: Ubuntu is successfully ...
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1answer
77 views

GRUB2 menu only shown after Ctrl+Alt+Del

After finally getting GRUB to see my win8 installment, I decided to tackle my other GRUB2 issue. The GRUB menu only comes up if i press CAD during a blank magenta splash screen that appears during ...
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1answer
3k views

How to boot over multiple drives on a UEFI motherboard using Grub2

I have an SSD and a HDD, on a UEFI Motherboard. I can switch OS by changing boot order in BIOS, but I would prefer it if Grub2 simply listed Windows7 as a boot option. Solving should help anyone who ...
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1answer
2k views

cannot upgrade linux kernel to newest version

My current kernel version shown by uname -r is: 3.5.0-17-generic. However, there are files related to newer version kernel 3.5.0-26 in /boot. So I want to upgrade the kernel to 3.5.0-26 by running: ...