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

learn more… | top users | synonyms (2)

11
votes
4answers
8k views

Slow boot after clean install of Natty

The time have risen from 20-25 sec in Meerkat to 35 sec in Natty. I do not know if it is ureadahead but made a bugreport of it in launchpad. I tried Fedora shortly before installing Natty. They use ...
11
votes
3answers
872 views

Any way to clean up the look of the shutdown/logout/restart process?

So, I've given up trying to configure my system (ubuntu 10.10, open source ATI drivers) to shutdown/logout/restart gracefully. Whenever I do any of the three, all I get is an ugly ubuntu logo with ...
11
votes
2answers
3k views

Crazy boot and reboot times after upgrading to ubuntu 15.04 (a stop/start job is running for session c2)

After upgrade to 15.04 my ubuntu loads really slowly, slower than Windows 8 on the same machine, which insults me. I turned off splash screen, and when I boot the system I get this: A start job is ...
11
votes
2answers
377 views

LTSP thin client to single user mode

Is it possible to boot a LTSP thin client to single user mode? I've updated the default entry under /var/lib/tftpboot/ltsp/i386/pxelinux.cfg to read as follows: - append ro initrd=initrd.img ...
11
votes
0answers
5k views

How do I stop or start the desktop from loading on bootup? [duplicate]

I occasionally want to use my Ubuntu machine as a desktop but mostly as a headless file server. Before I upgraded to Oneiric, I used rcconf services to disable or enable the desktop. In Oneiric I ...
10
votes
4answers
1k views

How can I make Shutter open at startup?

How can i make the application, Shutter (takes screenshots) open at startup? I know about sys > prefs > statup applications, but after I go to add what do I fill out the form with? Shutter isn't a ...
10
votes
3answers
3k views

Freeze after upgrading kernel to 3.13.0-66 (14.04) or 3.19.0-31 (15.04)

Dell LAtitude E6430 with CPU Intel® Core™ i5-3210M, 64 bits, no longer boots after updating 14.04 LTS system to kernel 3.13.0-66. It hangs off after completion of the password. Back to the 3.13.0-64 ...
10
votes
5answers
53k 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 ...
10
votes
2answers
1k views

Whats is the importance of Plymouth?

I accidentaly did a command to delete Plymouth from my ubuntu 15.04: sudo apt-get remove plymouth and after this my login screen didn't appear any more. After GRUB menu the screen became black and ...
10
votes
2answers
7k views

15.04 - very slow boot

After upgrading to 15.04 , one computer is very, very slow to boot -several minutes, instead of ~20sec. I do not know if this helps: graphical.target @1min 40.961s └─multi-user.target @1min 40.961s ...
10
votes
2answers
13k 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 ...
10
votes
3answers
637 views

No more boot logging since 16.04?

I noticed that my /var/log/boot.log file has date 2016-04-22, last time I booted in 15.10. Where are Xenial boot.log files located?
10
votes
2answers
13k views

Ubuntu Live USB won't boot, “Failed to load COM32 file menu.c32”

I'm hoping to revive an old netbook I have laying around by installing Linux on it. I did what I gather most of us are supposed to do: I created a Xubuntu 14.10 Live USB with Unetbootin, plugged the ...
10
votes
2answers
802 views

How to create a live system on usb-drive with persistent changes on disk/hdd

I was trying to install Ubuntu live on a USB-drive with persistent changes. However i wanted to write the changes to HDD instead of USB for various reasons (Performance, Space). I found out, that the ...
10
votes
3answers
1k views

How can I make a live CD/DVD from my harddisk installation?

How can I make a live CD/DVD from my harddisk installation? In other words, I would like to create a boot CD from Ubuntu that is installed on my PC, because I want to include the updated packages in ...
10
votes
3answers
9k views

How can I repair a system with a deleted kernel?

Because I wanted to get more free space on my HDD, I deleted old kernels (dont ask me why I was so mad.). I accidentally deleted the active kernel too (3.2.0-27 on Ubuntu 12.04). First I couldn't ...
10
votes
2answers
7k 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 ...
10
votes
1answer
14k views

How do I create an EFI-bootable ISO of a customized version of Ubuntu?

I have created an own Ubuntu distribution that I want to boot (from a USB) on my MAC. When using the standard 64bit-Ubuntu-iso from the Ubuntu website, it boots. However, when doing the exact same ...
10
votes
2answers
19k views

I get a “serious errors while checking the disk drives for /boot” error while booting

I have just set up my new system by creating three partitions on a whole hard disk (/boot, /home, swap and /). I saw this article and now I am getting those errors and the system provide me with some ...
10
votes
2answers
14k 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?
10
votes
3answers
4k 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 ...
10
votes
2answers
2k views

Error saying “unable to update ICE authority” while booting

I often get an error saying unable to update ICE authority. Is there a way out of this?
10
votes
3answers
61k views

Dual boot windows 8 and Ubuntu with Windows 8 Boot manager

I have two partitions on my hard-didk , I have installed ubuntu on my 1st partition and windows 8 later on another partition.Now i can only boot into windows 8 because it doesn't recognize Ubuntu. ...
10
votes
3answers
14k 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 ...
10
votes
3answers
58k 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 ...
10
votes
1answer
10k 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 ...
10
votes
3answers
43k views

Booting Ubuntu 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 ...
10
votes
2answers
949 views

Resizing boot partition with full disk encryption

I have seen the answers to the general question regarding resizing the boot partition. In my case, I have installed Ubuntu 12.04 Alternate with full disk encryption. Since the drive can not be ...
10
votes
3answers
1k views

My boot time has increased by 25% in the past two months. How do I reduce it?

I used to have a boot time of ~35 seconds till 2-3 months back. Now it is about ~50 seconds or more. Shut down time has also doubled. Before it used to be at most 5 seconds. Now it is at-least 10 ...
10
votes
4answers
8k views

Why does Ubuntu 11.10 start and shut down so slowly?

Ubuntu's always been very fast on my computer. I have 3GB RAM, and previous versions booted in under 40s and shut down in under 5s. Most recently, Natty took 40s to boot and only 4s to shut down. ...
10
votes
0answers
11k views

How to free up space on /boot? [duplicate]

Possible Duplicate: Free up more space on /boot I logged onto my server today to find the message: => /boot is using 98.9% of 91MB When I look at /boot I see that it is indeed very ...
9
votes
6answers
2k views

If I dual boot Windows 10 and Ubuntu, could a keylogger affect me if i'm on Ubuntu?

If I have a keylogger on Windows 10, can it affect me when I boot into Ubuntu on the same computer.
9
votes
3answers
25k views

I need to restart from the root command line [duplicate]

I need help restarting/shutting down from the root command line, any commands I could use? I don't like hard resetting
9
votes
2answers
43k views

How to add a GRUB2 menu entry for booting installed Ubuntu on a USB drive?

I am not asking how to boot the LiveCD from a USB. I have 2 Ubuntu installations, one on my computer's internal hard drive and another on a USB drive. Is there a way to add a GRUB2 menu entry (to ...
9
votes
5answers
37k views

Configure Dual Boot, Windows 7 and Ubuntu 12.04 with or without EFI

I have just installed Ubuntu 12.04 on a laptop with Windows 7 but I don't get to boot from Ubuntu. First, during the installation I made these partitions (may be too many): /dev/sda1 FAT32 SYSTEM ...
9
votes
1answer
1k views

Accidently deleted my /etc/default folder

I Accidently deleted my /etc/default folder. Now my computer wont boot. Its running Ubuntu 14.04 LTS. Upon boot it says, Filesystem check or mount failed. A maintenance shell will now be ...
9
votes
2answers
2k views

How can I remove a mainline kernel and move back to a supported kernel?

I recently upgraded to kernel 3.4 in my Ubuntu 12.04. After that the computer is not booting up. So I used a previous kernel to boot up. Actually I don't want 3.4 kernel. So how can I remove it and ...
9
votes
2answers
12k views

Need to move my swap partition to let my root partition grow. How?

I have a Virtual Box Ubuntu guest and i need to have more space on my disk (actually it's 8 gb). I have already increased the space allocated for the VDI to 16 gb. Now with GParted Live i'm trying ...
9
votes
2answers
26k views

ALERT! /dev/disk/by-uuid/xxxxxxxxx does not exist. Dropping to a shell

I am using Ubuntu 14.04. On 23 August 2014 I ran in terminal sudo apt-get update. Then I rebooted the system. And now I see: ALERT! /dev/disk/by-uuid/xxxxxxxxx does not exist. Dropping to a shell ...
9
votes
2answers
15k views

Macbook Pro Ubuntu install freezes after grub menu

I am trying to install Ubuntu 14.10 (also tried 14.04.1 LTS) on my 2009 Macbook Pro 5,2. I have installed rEFInd, I have made a bootable USB as instructed on the Ubuntu site. I can get to the grub ...
9
votes
4answers
4k views

Replacing Windows with Linux Ubuntu 12.04 LTS

I am working on the best way to eliminate Windows XP from my older desktop and replace it with Linux Ubuntu 12.04 LTS as my sole operating system. I've done a dual boot alongside Windows to get used ...
9
votes
3answers
90k views

Install on Second Hard Drive with startup boot option?

In theory, what I want to do is very simple, but I've done some google research and read some posts on this site and I'm still confused. I want to keep win7 on my primary C:\ drive, and install ...
9
votes
6answers
51k views

System won't boot with nvidia driver enabled

I just tried to upgrade Ubuntu 11.04 to 11.10, but without success. I took a picture of what the screen are showing when i try to boot: If i use recovery mode -> resume, it works. Normal boot ...
9
votes
3answers
3k views

Optimizing Boot-up

I installed bootchart to monitor my boot-up process. I had some problems with my booting time (>80sec) Before : http://i.stack.imgur.com/4tvky.png After some tweaking with Bum,Ubuntu-tweak and ...
9
votes
1answer
52k 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 ...
9
votes
1answer
7k 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
4k 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
3k 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
2answers
1k 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
1answer
303 views

Is it OK to delete the /boot/initrd.img file on a running system

I have a server with a RAID1 root partition, but it has a small partition for /boot on each of the two drives: I 'dd' one to the other whenever an update is made. Unfortunately the /boot partition is ...