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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7
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4answers
23k 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
961 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
6k 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
40k 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
2answers
10k 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
3answers
26k 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
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
37k 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
11k 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
1answer
10k 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
21k 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
2k 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
786 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
385 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
3answers
26k views

Booting Ubuntu 12.04 with “acpi=off” grub parameter

In order for me to boot into 12.04, I have to add the parameter acpi=off in grub. Any other options as specified here do not allow me to boot into Ubuntu. My question is simple, what does setting ...
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
5k 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
587 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
2answers
35k 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 ...
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
1answer
219 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
4answers
23k 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 ...
6
votes
2answers
53k 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 ...
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
2answers
7k views

“intel_rapl: no valid rapl domains” message upon boot

I install fresh Ubuntu 14. 04 server under ESXI 5.1.0. During my installation I did not get any erorrs or strange things. My problem is when I boot machine at console screen I get messages like [ ...
6
votes
3answers
15k 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: ...
6
votes
6answers
3k 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
3answers
3k views

Stopping daemons from loading at boot time

I want to stop some daemons from loading at boot time, specially squid3. What is the best way of doing this?
6
votes
3answers
17k views

frequency out of range - please change display mode

I just downloaded the latest version of the Ubuntu live CD, and have installed it on a desktop computer (a Fujitsu Scaleo P). Once installed it seems to work perfectly, although there are some updates ...
6
votes
5answers
10k views

How to start Virtual box machines automatically when booting?

I have many Virtual box machines in my Ubuntu12.04, each time i shutdown or reboot i have to start them one by one. I wanna a help in writing script for automatically autostart the VBox machines ...
6
votes
1answer
66 views

How do I report a bug that happens during boot?

I seem to have found a bug in 12.04 while it's booting, but all the questions on this site seem to point users to reporting bugs once the desktop is up and running by using ubuntu-bug. How do I ...
6
votes
2answers
6k views

“General error mounting file systems”

No idea what I've done, but I just started getting this error everytime I boot. Running Ubuntu 12.04. I was able to see more of the boot log by removing splash and quiet from grub. I believe this ...
6
votes
5answers
4k views

How to autologin (without entering username and password)(in text mode)

I've installed Ubuntu 12.04 & and edited the /etc/default/grub file to auto boot into text mode. but every time I turn on the computer it asks for username and password (in text mode), I wanted it ...
6
votes
1answer
1k views

Is it possible to get the tux logo on the text based boot?

On Knoppix based distros, you get a nice Tux logo on the left of the screen during text boot, Is this possible to get on Ubuntu?
6
votes
1answer
396 views

LiveCD does not work on my desktop

I've installed new version of Ubuntu on my laptop without any issue using the LiveCD. But on my desktop, weird things happen: During the 1st try booting with the LiveCD on my desktop, my 2 year old ...
6
votes
2answers
19k views

How do I manually boot from the grub prompt after do-release-upgrade?

I read a couple of other questions on this topic and they both pointed to the Grub2 community documentation and installing grub configs from an install disk. I had some trouble with the ...
6
votes
3answers
3k views

mount error during boot up

I get the following error during boot up. But this error doesn't get written to boot.log, as it happens in early boot stages. mount: mounts none on /dev/pts failed: Device or resource busy I found ...
6
votes
4answers
14k views

add default route on boot [closed]

I'm trying to add a default route on my ppp0 connection, I want the default route points to that connection. I tried to add it in /etc/rc.local but I don't think that is the right place to do so. I ...