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1500 questions
155
votes
9 answers

How do I remove Steam?

Anyone know of a way to remove Steam from Ubuntu 12.04? Looked around the net but could not find an straight forward solution. Thanks.
Hector Arzuaga Jr
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155
votes
9 answers

Changing TTY keyboard layout on a server?

I use 12.04 Server in command line mode (no X installed), and I would like to change the keyboard layout. How can I do this?
Mike
  • 1,553
155
votes
20 answers

Brightness is reset to maximum on every restart

The brightness of my laptop is reset to max on every restart. I tried the solution provided at this website but had no luck. This command cat /sys/class/backlight/acpi_video0/max_brightness Returns cat:…
b-ak
  • 4,430
155
votes
12 answers

Why does Ubuntu Download recommend 32-bit install?

Update for 13.10: 64-bit version is now the default and 32-bit is labelled "for machines with less than 2GB RAM" The Ubuntu desktop download screen has a pair of radio buttons you use to select whether you wish to download the 32-bit or 64-bit…
Warren Pena
  • 2,085
154
votes
7 answers

How can I restore configuration files?

I would like to restore LightDM to its default state, because for some reason /etc/lightdm/unity-greeter.conf is now an empty file. Deleting /etc/lightdm/unity-greeter.conf and then running sudo apt-get install --reinstall unity-greeter doesn't…
Isaiah
  • 60,830
154
votes
9 answers

How could I list all super users?

I want a command to list all users who have root privileges i.e. sudo ? Suppose I'm a sudoer user. How could I know all other sudoer users?
Maythux
  • 87,451
154
votes
2 answers

How do you get a list of all starting services?

I know about the update-rc.d SERVICE OPTIONS command to add and remove services from startup, but how do I use it to get a list of all the services that are currently configured to start at startup? Is there some other way to get this list?
Lance Roberts
  • 4,017
154
votes
11 answers

How can I access Apache (on VirtualBox guest) from host?

I installed Apache on an Ubuntu VM. When I go into the guest and load up Firefox I can see that Apache is working fine when I browse to localhost. I would like to access this same page through the host. I've tried using the IP address of the guest…
urok93
  • 1,959
154
votes
4 answers

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 Unknown keyword in configuration file: gfxboot.c32:…
jamius19
  • 1,690
154
votes
5 answers

How to change history size for ever?

The default size of history in Ubuntu is 1000 but it's too small. I want to change it to 10000, So I append export HISTSIZE=10000 export HISTFILESIZE=10000 to '~/.profile' and 'source' it source .profile then I run echo $HISTSIZE echo $HISTFILESIZE…
Mitoxys
  • 1,641
154
votes
4 answers

Disable autostart for a service without uninstalling?

How can I disable autostart for a service without uninstalling? For example, I'd like to leave tomcat installed, but I don't want it turning on every time I restart.
C. Ross
  • 3,067
154
votes
4 answers

How to resize partitions?

Previously, I have installed Windows 7 on my 320 GB laptop with three partitions 173, 84 and 63 GB each. The 63 GB partition was where the Windows was installed. The rest were for file containers. Now I changed my OS to Ubuntu 12.04 LTS. I installed…
Johannes
  • 1,559
153
votes
7 answers

How can I rotate a video?

Is there a way to change the rotation angle of a video file? I have a couple of videos in the wrong direction so all I wanted is to correct it.
maniat1k
  • 8,350
153
votes
9 answers

Why has VirtualBox's menu disappeared?

How do I display the menu bar of VirtualBox? Functions like cdrom, usb, etc need access to the menu bars to work.
sam
  • 6,941
153
votes
6 answers

How to patch the Heartbleed bug (CVE-2014-0160) in OpenSSL?

As of today, a bug in OpenSSL has been found affecting versions 1.0.1 through 1.0.1f (inclusive) and 1.0.2-beta . Since Ubuntu 12.04, we are all vulnerable to this bug. In order to patch this vulnerability, affected users should update to OpenSSL…
Lucio
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