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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9
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3answers
3k views

Ubuntu shows 'Kubuntu' on boot

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 ...
9
votes
3answers
11k views

Howto run Ubuntu with UEFI and Intel Smart Response Technology

This question has NOT been answered by the following due to them saying to permanently disabling these features Installing Ubuntu on a Pre-Installed UEFI Supported Windows 8 system Install ubuntu on ...
9
votes
1answer
6k views

Why do I get “init: failed to create pty…” errors on boot?

I've installed Ubuntu 12.04 yesterday with a LiveUSB. I had problems at booting, so I had to repair grub, and it was ok. But now when I start up my pc, I get the error message 'init: failed to create ...
9
votes
4answers
3k views

How can I use my own image for the boot splash screen?

How can I create and use my own boot splash screen?
9
votes
2answers
955 views

How to recover unbootable system?

I have just run the most recent set of recommended updates on a 10.10 system. The computer is now un-bootable. It gets as far as the "Ubuntu..." splash and then does nothing. I cannot switch to a ...
9
votes
2answers
2k views

Black screen during boot after TTY1 login

I've got a weeks-young install of 13.04 (3.8.0.29) and the computer has been powered on for a week. I turned it off for the night and now it freezes during boot. I have already checked this ...
9
votes
4answers
2k views

How do I boot Ubuntu from the network without installing?

The scenario: At work I have to shred data on old PCs (not my main responsibility). What I do is I boot from the Live-CD, choose Try Ubuntu, open the terminal and sudo shred -v -n10 /dev/sda. This way ...
9
votes
1answer
1k views

How can I improve my boot time? (bootchart and dmesg output included)

I've noticed that my boot time lately has been unusually slow. I am running 12.04 a laptop with a 2.40GHz CPU and 4GB of RAM. I've run bootchart and dmesg, but I'm not sure how to use them to address ...
8
votes
5answers
12k 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
8
votes
5answers
1k views

Will plymouth allow for a nice boot experience with proprietary graphics drivers in future?

The new graphical bootloader introduced in 10.04 (plymouth) looks amazing until I enable proprietary drivers for my video card. I then get a horrible flashy monster of a boot experience, which I can ...
8
votes
3answers
7k 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 ...
8
votes
3answers
7k views

“The volume boot has only 0 bytes disk space remaining”

After a recent update, I'm getting an alert saying: The volume boot has only 0 bytes disk space remaining But my computer has plenty of HD space free. Does anyone know how I resolve this. (If its ...
8
votes
3answers
19k views

What is the use of /boot (lvm based) in partitioning?

As separate /home partition helps in easy reinstallation/upgrade. Does having /boot help while dualbooting with windows? I mean is it useful for normal desktop/notebook users or it is advanced ...
8
votes
7answers
1k 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 ...
8
votes
2answers
26k 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?
8
votes
2answers
11k views

How can I change the purple background color of Ubuntu plymouth boot screen?

I'd like to change the background color of the purple plymouth boot splash to another color, how can I do this?
8
votes
1answer
829 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?
8
votes
1answer
25k views

How to use fsck in Ubuntu?

I intend to use fsck for checking my Linux partition of the main disk, because its file system is suspicious of being not unmounted cleanly by shutting down the system. I have searched in my ...
8
votes
2answers
37k views

Cannot boot because: Kernel panic - not syncing: Attempted to kill init!

This is what I've got. I cannot boot and I see the two of three little lights on the keyboard blinking all the time and the cooling is working on full power, almost. I saw in other askubuntu topic ...
8
votes
1answer
24k views

Booting Ubuntu Failure : error: attempt to read or write outside of disk 'hd0'

I have installed Ubuntu 12.10 in a Western Digital external hard drive (320GB). This is a complete installation, not a live USB. When I plug it in my HP desktop I go to the BIOS settings and boot off ...
8
votes
2answers
3k views

How can one unlock a fully encrypted Ubuntu 11.10 system over SSH at boot?

In previous versions of Ubuntu, and current versions of Debian, you can unlock a fully encrypted system (using dmcrypt and LUKS) at boot time over SSH. It was as easy as: Installing the encrypted ...
8
votes
3answers
34k 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 ...
8
votes
1answer
8k views

What happens if I disable and unistall Plymouth?

I have this problem with Plymouth, in wich it doesn't show up or, when it shows, with a awful resolution. So, I wanted to uninstall Plymouth ( I found the package in Synaptics). I'm using Ubuntu ...
8
votes
4answers
5k views

After new Ubuntu 15.04 installation, startup asks for password even though no disk encryption was set up

I installed a brand new SSD into my laptop and did a fresh install of Ubuntu 15.04, with NO system encryption used (only Home directory encryption). However, it still asks me for a password when ...
8
votes
4answers
14k 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
37k 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
2answers
2k views

Ubuntu 12.04 Unity: Black screen with cursor only, when external display is connected before booting laptop

Whenever I connect an external display to the DSub port of my laptop before booting into Ubuntu, something goes wrong in Unity to cause the exact same problem as described here: After logging in, ...
8
votes
1answer
738 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 ...
8
votes
0answers
43k views

Unable to mount NTFS hard drive partition “The disk contains an unclean file system” [duplicate]

I have dual booted ubuntu 13.10 and windows 8.1 in my laptop. Earlier my window partition(C drive) and other NTFS partition was accessible from ubuntu. Now its giving me this error and not mounting: ...
7
votes
6answers
13k 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
4answers
6k views

VirtualBox boots only in UEFI Interactive shell

I installed Ubuntu 14.10 in VirtualBox with UEFI. But now I have rebootet this OS and now it boots into a UEFI Interactive Shell v2.0. How can I boot normaly into Grub again? I hope you can help me, ...
7
votes
2answers
65k 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
10k 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
2answers
2k views

How do I make a sudo command start at start-up with a 1 minute delay?

I would like to make a sudo command (sudo service smbd restart) run after 1 minute of being logged on. How would I go about doing this? P.S. This is a system with no monitor, mouse, keyboard or ...
7
votes
6answers
7k 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 ...
7
votes
2answers
10k 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 ...
7
votes
2answers
25k views

Run shell script on startup or boot

My problem in a nutshell is that I have to run a script every time I use my computer so I'm trying to automate the process a bit. My system has the nvidia gt540m vga card. The card is dual. It has ...
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
12k 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
1answer
9k 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
4answers
31k 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
3answers
7k 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
3answers
22k 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 ...
7
votes
2answers
12k 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
2k 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
13k 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
5k views

Boot failure: failed: command IDENTIFY PACKET DEVICE

Trying to install from CD desktop image and getting: ata8.00: exception Emask 0x52 Sact 0x0 SErr 0xffffffff action 0xe frozen ata8: SError: { blah blah } ata8.00: failed command: IDENTIFY PACKET ...
7
votes
1answer
45k 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 ...