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1500 questions
169
votes
6 answers

How to set a short password on Ubuntu?

When I install the Ubuntu, I set a short password(<4). Now I want to change the other short password by "passwd" or change passphrase on "Password and Keys" program, it needs a password >4 char.
Lei Ming
  • 1,829
169
votes
10 answers

How do I disable the screensaver/lock?

When I'm watching a film in Mythtv the screen turns to black every 10 - 15 mins and I have to log back into Ubuntu. Very annoying! How do I disable the black screen / screensaver / logout in Unity? There no longer seems to be any options to turn the…
Gareth Butcher
  • 1,763
168
votes
14 answers

Mount encrypted volumes from command line?

If I have an encrypted external disk (or an internal disk that is not in fstab), I see an entry for it in Nautilus -- with an entry like "X GB Encrypted Volume". I can click on this volume, and am prompted for a password to decrypt and mount the…
cha
  • 2,183
168
votes
4 answers

Can I access Ubuntu from Windows remotely?

I have Ubuntu installed on my work computer. I am wondering whether I could have access to it from another computer with Windows installed. If so, could you give a step by step guide?
LaTeXFan
  • 1,797
168
votes
20 answers

USB devices showing as read only

I am using Ubuntu 14.04. I have an 8gb FAT32 USB stick and a 500gb FAT32 HDD; both of these have suddenly become read only devices. I've tried deleting the directory inside /media and then creating it again, renaming it, then giving that directory…
oodles2do
  • 1,843
168
votes
5 answers

Why does su fail with "authentication error"?

I tried to su to root so I could install lights, but I get an authentication error when I try: user@host:~$ su Password: su: Authentication failure
Michael
  • 2,597
168
votes
12 answers

How to recover deleted files?

Are there any tools, methods, incantations to recover recently deleted files on Ubuntu? If it makes any difference, I want to recover a Keepass 2.x database file. But would be better to have a method/tool that works on any kind of file.
Decio Lira
  • 8,154
168
votes
4 answers

update-java-alternatives vs update-alternatives --config java

On Ubuntu 12.04 LTS I have installed Sun's JDK7, Eclipse, and the Arduino IDE. I want the Arduino to use OpenJDK 6 and want Eclipse to use Sun's JDK 7. From my understanding I need to manually choose which Java to use before running each…
Stan Smith
  • 1,783
168
votes
6 answers

How to record output to speakers?

Is there a program for Ubuntu that can record sounds of only the output of the speaker and not any voices from outside the PC?
AmirRazoR
  • 3,417
168
votes
8 answers

How do I find out which version and derivative of Ubuntu is right for my hardware in terms of minimal system requirements?

For a given hardware configuration, how do I find out if Ubuntu will run on it? What considerations should I take into account when choosing an Ubuntu version and flavour such as: Xubuntu with a lighter desktop than the usual Gnome and…
con-f-use
  • 19,041
168
votes
18 answers

My /boot partition hit 100% and now I can't upgrade. Can't remove old kernels to make room

My first issue was when I tried to apt-get update or apt-get upgrade. On upgrade I get the following error: You might want to run 'apt-get -f install' to correct these. The following packages have unmet dependencies: linux-image-server : Depends:…
Strifey
  • 1,779
167
votes
9 answers

Play sound through two or more outputs/devices

I have one sound card and one pair of Bluetooth headphones. I want to play my audio through both my sound card and my Bluetooth headphones. I believe Windows has checkboxes that allow you to "check" outputs to enable/disable them, but Ubuntu…
Nathan J.B.
  • 2,730
167
votes
18 answers

How to fix virtualbox's copy and paste to host-machine?

Sometimes while using VirtualBox, I have tried copying text from the virtual machine to the host machine but failed. Whenever that happens, I fix it by rebooting the virtual machine. Is there a solution to this because I don't want to keep…
sam
  • 6,921
167
votes
15 answers

Create a single pdf from multiple text, images or pdf files

I have a bunch of text files, images and pdf files which I want to convert into a single pdf file. How do I do it?
AJha
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  • 4
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  • 12
167
votes
5 answers

How do I set fish as the default shell?

Is there a way to set fish as the default shell in ubuntu netbook remix? I put in my .bashrc to run fish, which works fine, but ubuntu recognizes it as fish running inside bash, which means that when I try to close the shell it warns me that a task…
Xodarap
  • 1,969
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