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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8
votes
4answers
13k views

Very slow boot due to mounting filesytem

I just installed Ubuntu 11.04 over an older version of Ubuntu, and am dual-booting with Windows 7. Most things seem to be working well (i.e. wifi, sound, etc.) but boot time is problematically long. ...
8
votes
2answers
36k views

Disk Drive / not ready yet or not available

I'll tell you the whole story. I decided to upgrade my natty from alpha to beta after a long time.After the updates has been downloaded, the system crashed during installation. I rebooted the system ...
8
votes
1answer
685 views

How to configure Grub to show only splash-screen and error messages during boot and shutdown?

I want to know where do I configure grub boot commands and commands called by lxsession-logout. I wish to make splash screen and only error output on both startup and shutdown/reboot. Startup, as far ...
7
votes
6answers
12k views

How to verify that the ISO I downloaded is bootable before I burn it?

How can I check to make sure that the iso I downloaded is bootable, before I burn it?
7
votes
2answers
57k views

How can I set my Ubuntu 12.04 LTS to boot to console without GUI? [duplicate]

So I installed Ubuntu server to run some tests on a VM. For various reasons I couldn't get a specific DEB file, and instead of using a shared folder I decided it would be a good idea to install ...
7
votes
4answers
26k views

How to restore Windows 7 MBR without a CD

I have been playing with Ubuntu for a few weeks now, and I'd like to revert my computer back to it's original - factory - defaults. On the computer I have a recovery partition (it's a netbook). I ...
7
votes
4answers
8k views

Is having the 'swap' partition at the 'beginning' better than at the 'end'?

I recently installed Ubuntu 11.04 onto a RAID0(stripe) device using the alternate installation disc and manually partitioned the HDs ext4 and swap partitions; during this process, I was reading in a ...
7
votes
4answers
2k views

How can I stop windows from always booting first?

I tried to make a dual boot setup on my computer. Already had windows 7 installed on one hard drive, then tried to install ubuntu on part of another hard drive. When i turn my computer on windows7 ...
7
votes
3answers
11k views

Error “fixing recursive fault but reboot is needed”

I am trying to install ubuntu for the first time. (long time windows user, first time linux!) Version = 11.04 Hardware = Acer Travelmate 4050 I can boot from USB or CD and it loads fine I have ...
7
votes
4answers
26k views

How do I bring up my wireless network at boot?

I am running Ubuntu Server 12.04. I have a wireless USB card. When I begin the boot process I see: Waiting for network configuration It turns out that the network never comes up. But once I get to ...
7
votes
2answers
1k views

Getting a script to run on boot, not on login

How can I get a specific script to run (preferably not as superuser) whenever the machine boots, but before login. It can be the last thing to run on boot. I mostly just want the script to work even ...
7
votes
7answers
986 views

Is it possible to run my Ubuntu install from within my Windows Install?

I have Windows XP and Ubuntu installed on separate partitions. Is it possible to "boot" my Ubuntu install from within Windows? What I am looking for is something similar to a Virtual Machine, but ...
7
votes
1answer
7k views

Boot folder is full so cannot install updates. [duplicate]

Plenty of free disk space. How do I either free up space on boot or increase its size? Using release 12.10 (quantal) 64-bit Kernel Linux 3.5.0-26-generic. Thanks, Dave.
7
votes
2answers
52k views

How to install the Boot-Repair tool in an Ubuntu live disc?

When the bootloader (GRUB) is broken, I cannot access neither Ubuntu nor Windows. I heard that an easy solution to fix this is to use the Boot-Repair tool from an Ubuntu liveCD (or liveUSB). What ...
7
votes
3answers
28k views

Ubuntu hangs at purple screen

I installed Ubuntu 11.10 today. After the reboot I selected Ubuntu and it kept hanging at the purple screen. No error message was shown. The liveCD went fine and the installation was successful. I ...
7
votes
2answers
11k views

Purple start screen - no splash screen

After installing Ubuntu 11.10 on a new computer everything worked fine for a few weeks and now suddenly when starting up Ubuntu I get a blank purple screen with no "Ubuntu" splash and the 5 dots but ...
7
votes
1answer
1k views

How to make a directory with permanent permissions different from default

I have system-wide default permissions set with umask 027. I am in the need to make a directory whose sub-directories would need 775 permission and whose files would need 664 permissions and make ...
7
votes
7answers
12k views

Problems with graphics of Sony Vaio Z

I have problem with my Sony Vaio Z VPCZ1. It has physical selector of GPUs which Linux kernel does not detect. So after GRUB I see black display (I tried different distributions of Ubuntu and other ...
7
votes
1answer
2k views

Do newer Ubuntu releases benefit from multicore processors at boot time?

I've read the Upstart features and it says nothing about concurrency. I also read old advices to set CONCURRENCY value in the /etc/init.d/rc But there is a comment: Specify method used to enable ...
7
votes
1answer
39k views

Xorg server configuration fail - no screens detected

I have a serious problem with Xorg server on ubuntu 12.04 (with nvidia 420M GT card). At home I am using an external monitor connected to my laptop's HDMI port - the external display is used as ...
7
votes
5answers
12k views

My system takes too long to boot is there a fix?

i just installed Ubuntu 11.04 fresh install with Windows 7 already installed.. when i chose ubuntu from the grub menu it shows the purple screen for too long with no activity from the laptop then ...
7
votes
2answers
1k views

How to run Ubuntu fully in initramfs?

I have a machine with 10 GB of RAM, and I would like to run Ubuntu on it (Debian also OK if its easier), fully in RAM in such a way: I boot from a compressed image on an USB flash disk, that is ...
7
votes
3answers
5k views

Windows missing from GRUB menu [duplicate]

When I turn on the computer, I can see the GRUB and boot into Ubuntu. But I can't boot into Windows because I don't see it in the GRUB. I have tried both boot-repair and sudo update-grub to no avail. ...
7
votes
1answer
11k views

Run command at boot as root

I need to run a bash script at boot-time as superuser in Xubuntu. I don't know where to start. I have to do something described in a Arch Linux guide. That guide says exactly: Add following at the ...
7
votes
3answers
1k views

Boot failure randomly. Can someone help?

I often get stuck at the boot on battery. I can suspend and hibernate without any trouble (even on battery). If I plug the energy cable everything goes right most of the time (edited June 13). ...
7
votes
4answers
2k views

Prevent LiveCD using existing swap partition

I have an existing installation with a swap partition, and I want to boot a Ubuntu 10.04 Desktop LiveCD without using the swap partition. I want to avoid using the swap partition so that I can resize ...
7
votes
2answers
27k views

How to create UEFI-only bootable USB live media?

Having live media that can boot both ways can be a problem when installing Ubuntu onto currently available Windows 8 computers. In other words the key advantage to creating UEFI-only bootable USB ...
7
votes
2answers
22k views

What does the “kvm disabled by bios” message during the boot process mean?

I get this message during booting of my laptop: [14.255596] kvm disabled by bios Can someone explain this?
7
votes
3answers
3k views

Ubuntu became Kubuntu after upgrading to 13.04!

I recently updated my Ubuntu 12.10 setup to 13.04 using sudo do-release-upgrade. After going through the process and rebooting, I was a little confused by the GRUB menu showing a "Kubuntu" option ...
7
votes
1answer
794 views

Minimize boot time

I'm using ubuntu 10.04 (pinguy os). My system takes more than 30 seconds to boot (atom 1.6Ghz). How to choose which modules to load during booting?
7
votes
3answers
396 views

Hard-drive fails to boot if suspend was activated prior to restarting. Booting a live USB/CD fixes the issue (temporarily)

I am running 12.04 64-bit and am dual booting with Win7, for full disclosure, although I suspect that has nothing to do with my problem. The boot-loader(GRUB) fails to load often and I will be ...
7
votes
3answers
2k views

How do I troubleshoot booting into black screen? [duplicate]

Possible Duplicate: My computer boots to a black screen, what options do I have to fix it? I installed Lucid Lynx over PXE onto this dell server seemingly successfully, but booting from the ...
7
votes
1answer
1k views

Log boot messages on tty1 instead of tty7

I'd like to see my boot messages in a different VT than 7. Can it be changed? Can I get the old behaviour - to get a login prompt AFTER all boot-up is complete in TTY1? Regards, aurocha
7
votes
5answers
4k views

Why is my Ubuntu 10.10 CD not booting?

I have downloaded Ubuntu 10.10 and burned the ISO but it will not boot. I discarded problems with the ISO, as I've downloaded from the official website with no errors, and burned it with no errors. ...
7
votes
3answers
6k views

Why isn't Grub2 using custom resolution?

I hope somebody can help me with this... Running Ubuntu 12.10 GNOME Remix I am trying to get Grub2 to use a resolution of 1600x900... I have checked vbeinfo and hwinfo --framebuffer which both ...
7
votes
2answers
611 views

Upstart script: Detect shift key down at boot

I want to create a boot up potential which allows a different upstart/runlevel configurations to load based upon specific key downs at boot (or combos). How do I detect a key down event with an ...
7
votes
3answers
1k views

Unable to boot into 11.10 in normal (get a black screen) OR recovery (get just a flashing cursor, no cli)

Okay, so I had a dual boot of Tango Studio (based on Ubuntu 10.04) and Windows XP. Yesterday I downloaded the .iso for Ubuntu 11.10 and attempted to install from a USB (my BIOS won't normally boot ...
7
votes
2answers
1k views

Is my boot process normal? It takes 50 seconds boot

Here's my boot.log resume: libgcrypt version: 1.5.0 fsck from util-linux 2.19.1 fsck from util-linux 2.19.1 fsck from util-linux 2.19.1 /dev/sda5: clean, 668102/3276800 files, 4449436/13107200 blocks ...
7
votes
1answer
2k views

Reboot hangs 100% - possibly in mountall

UPDATE: It seems mountall is hanging inside the routine emit_event(), which it calls after / is remounted to emit an event to that effect. Inside emit_event, it calls ply_boot_client_flush(), then ...
7
votes
0answers
1k views

How do I speed up boot time? [duplicate]

Possible Duplicate: How do I improve boot speed? I am dual-booting Ubuntu and Windows 7. When I select Ubuntu at the GRUB menu, a blinking cursor in a black screen comes and takes some ...
6
votes
5answers
7k views

How to stop mysql from running at boot time?

How could I stop Mysql from running at boot time? Is there any GUI for that or this must be done through console? It's Ubuntu 10.10
6
votes
1answer
237 views

What process is used under the covers to load the Ubuntu Linux kernel?

What particular steps take place behind the scenes to load and start the Ubuntu Linux kernel?
6
votes
2answers
5k views

Ubuntu 14.04 LTS live USB boot error (gfxboot.c32:not a valid COM32R image)

I downloaded Ubuntu 14.04 (64 bit) lts. I made a bootable usb stick. But I keep receiving this error message upon booting: SYSLINUX 4.04 EDD 20110518 Copyright (C) 1994-2011 H. Peter Anvin et al ...
6
votes
3answers
16k views

How can I make fsck run non-interactively at boot time?

I have a headless Ubuntu 12.04 server in a datacenter 1500 miles away. Twice now on reboot the system decided it had to fsck. Unfortunately Ubuntu ran fsck in interactive mode, so I had to ask someone ...
6
votes
3answers
5k views

How can I show all kernels in the Grub2 menu, ie disable submenu (“Previous Linux Versions”)?

Is there an easy way to disable Grub2 new submenu structure? I'd like to have back the old structure (each option as a menuentry) where each kernel is visible and selectable on the fly. I've already ...
6
votes
3answers
4k views

Exit Ubuntu Splash Screen

Is there a way to exit the splash screen during boot and view the verbose boot without rebooting? For future viewers sake: this is for GRUB2 on Ubuntu.
6
votes
6answers
4k views

How can I tell linux kernel to completely ignore a disk as if it was not even connected?

Notice Please scroll down for the answer (it has 0 points but it is the correct one). The problem is solved by a patch that will be in kernel 3.12.7 and up; I hope it will back-ported to earlier ...
6
votes
2answers
8k views

Grub gives messages about the boot sector being used by other software. What should I do?

This only happens with one of my computers. It is an elderly laptop that has had a long and varied history with several operating systems, but in its retirement it is acting as a server for my home ...
6
votes
2answers
11k views

Cannot properly boot into Ubuntu after installation of Nvidia driver

I'm on Ubuntu 12.04. Everything was fine until I did a fresh install of a proprietary driver for NVIDIA, using the "Additional drivers" utility. After having restarted my computer, I cannot access to ...
6
votes
3answers
16k views

How to change the default system of dual-boot using Wubi?

I have both Windows XP and Ubuntu installed. I want to set Ubuntu as my default system when boot the machine. I don't want to press Down+Enter every time. I am using Wubi. Original boot.ini: ...