Ubuntu is a Linux distribution with an emphasis on ease of use and installation. Note that http://askubuntu.com is specifically dedicated to Ubuntu questions.

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4
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4answers
2k views

Is it safe to chown on /usr/lib?

Can I do this? sudo chown -R myUsernName /usr/lib I mean can I do this without worrying that my OS will be broken? Or permissions will be screwed up? Here is the reason why I would like to do it ...
9
votes
5answers
19k views

How to get back sudo on Ubuntu?

I have done this: sudo chown -R myname /usr/ and now I can't use the sudo command because of this error: sudo: must be setuid root And as I read this means that the owner of this file ...
3
votes
2answers
3k views

best practice to backup config files

I want to setup froxlor on not fresh install remote server (Ubuntu 10.04.2). I take care of admin the server since two month. Before I start, the previous guy installed and config some services and ...
4
votes
3answers
10k views

Set up Grub2 to boot Freebsd using either Ubuntu tools or LiveUSB to find what partitions?

I currently have Windows7 and Ubuntu 11.04 (Natty) installed on my computer. I also made a FreeBSD liveUSB (or installer, not sure; just dded their .img to the USB stick) and installed it without ...
0
votes
1answer
96 views

Ubuntu x86 10.10 terminal

I just downloaded a Ubuntu v10.10 vmware image for Windows. I'm trying to install a web application that can only run on Linux MySQL, Apache and PHP. How do I open a terminal in Ubuntu?
2
votes
1answer
3k views

What does 'Invalid module format' mean?

After executing... sudo modprobe rt3572sta I get... Invalid module format What does it mean? I'm trying to get Wusb600n v2 working on Lucid Lynx. Does it mean that kernel versions aren't ...
0
votes
2answers
531 views

How to mount a USB drive

I have a USB drive that used to mount with another computer, but won't appear when it should with another. I'm running Ubuntu 11.04 and the drive should appear under "Places". Here's the output of ...
2
votes
1answer
6k views

Play RTMP stream from command-line

I've managed to get flvstreamer to read a radio station's RTMP stream with the options --live -r [url], and it outputs what I guess is the raw audio data + stream info to stdout. Can I make it play ...
3
votes
1answer
941 views

Auto mount cd or dvd on CLI based ubuntu server

I am using Ubuntu server as a samba server. The solution I am looking for is whenever the disks are inserted (cd or dvd) they should get auto-mounted to /cdrom directory. Are there any tools for ...
3
votes
2answers
8k views

How to disable screen saver and power management in linux by command line?

Is there a command line you can run that can enable in-habitation, disabling computer going to screen saver, sleep?
5
votes
3answers
7k views

How do I open a .bak file on Linux?

I have received a file of .bak format, let it be foo.bak. I don't know if it is a MS-DOS file or Linux/Unix file. What I know is that I can't open it because my Linux (Ubuntu) does not give any hint ...
2
votes
1answer
1k views

How do I access a digital camera drive via usb after safely removing it?

In Ubuntu 11.04, I unwisely right clicked and "safely unmounted the drive" of my Sony HDR-XR150 connected via USB. Now, when I plug my digital camera into my computer via USB, Ubuntu either doesn't ...
1
vote
1answer
2k views

Help with installation of ROOT, PATH variable is getting deleted

I am trying to install ROOT which I need for work. I run Ubuntu 10.04 64 bit on virtualbox on my laptop. After extracting the tarball, I try to source the .sh file using the command as suggested in ...
2
votes
2answers
642 views

Powerful hardware, slow Ubuntu

My computer should be able to run Ubuntu (11.04) without breaking a sweat: CPU: 2.00Ghz Core i7-2630QM RAM: 8Gb DDR3-1333 HDD: 60Gb SSD GPU: 1Gb AMD HD 6570M Swap: 2.7Gb However, opening folders ...
4
votes
1answer
2k views

How to set a static IP in Ubuntu

How do I set my computer to have a static IP in Ubuntu 11.04? The only two lines in /etc/network/interfaces are: auto lo iface lo inet loopback I think usually when people do this they have a wired ...
3
votes
1answer
1k views

Chroot debian squeeze for shell access

A user requires shell access to an Ubuntu server from the WAN side. There are many shell accounts with simple passwords. So shell port (port 22) is blocked in the firewall. For my WAN side user I am ...
9
votes
1answer
19k views

apt-get prompts for CDs when installing packages, how do I make it stop?

I used ubuntu linux before, and I installed debian OS on my labtop using DVDs that I burned. But when I'm trying to use apt-get to install software, the system always asks me to insert disk to ...
4
votes
2answers
9k views

Firmware for wireless card on Ubuntu/Debian?

This is a follow up to my previous question about Debian support for Linksys Wusb600n. I have tried running the Ubunut/Xubuntu LiveCDs and the WiFi does not come up. The Gnome Network Manager menu ...
1
vote
1answer
1k views

Debugging Java program for changing timezone configuration file on Ubuntu

Here is a ruby script I wrote to change the timezone configuration on Ubuntu. I run it with jruby (a Ruby interpreter running in a JVM). require 'java' if ARGV.length == 0 puts "Usage: jruby ...
3
votes
2answers
159 views

Installing drivers in ubuntu

I just installed Ubuntu 10.4LTS on my machine and I'm having trouble following the driver install directions. I am told to execute this command in the 'linux source tree': make ...
6
votes
6answers
56k views

How to transfer files from Windows to Ubuntu on Virtualbox?

How should I transfer files from Windows to Ubuntu installed on Virtualbox? When I plugged in a USB, it only pops up in Windows. How can I see it in Ubuntu?
4
votes
4answers
6k views

How to make an Ubuntu time zone change stick?

I'd like to reset the timezone through editing /etc/timezone. However, after I was done editing and saved the file, the system time did not change accordingly. On the other hand, when I take ...
0
votes
3answers
2k views

How to transfer Windows application to Ubuntu on Virtualbox?

I have Matlab on Windows 7 and I need to use it in my Ubuntu system installed on Virtualbox because I am working on files only compatible in Linux. How can I transfer Matlab into my Ubuntu system?
4
votes
1answer
1k views

How to switch between GPU's

How can I switch between two GPU's on-the-fly using Ubuntu 11.04? I have an Asus EEE1015PN intel N550 with two GPU's: GMA3150 and Nvidia ION2. For example Windows 7 will switch to the bigger CPU when ...
3
votes
3answers
2k views

How to check if CONFIG_HIGH_RES_TIMERS enable?

I have to program a realtime application on Linux, but don't know whether the standard installation of Ubuntu has CONFIG_HIGH_RES_TIMERS enabled. How can I check this? I'm using Ubuntu 11.04 64bit.
2
votes
1answer
459 views

Virtual machine hangs when trying to login after beeing idle for som time

I'm using Microsoft Virtual PC 2007 to run a linux virtual machine, but after some time I can't login to it -- not from the instance on the localmachine or ssh in to the machine. Both give the same ...
2
votes
1answer
4k views

how to use nvidia vdpau decoding for mplayer video player in linux?

How can I manage to switch on nvidia vdpau decoding on mplayer video player in Ubuntu 11.04? It doesn't work with default options. I've got the proprietary drivers installed: dpkg -l nvidia-current ...
4
votes
1answer
3k views

Create Ubuntu USB-Installer from Debian

I have Debian Squeeze and want to create USB flash drive for install Ubuntu 11.04. I've already tried many ways: boot.img.gz + mini.iso at drive's root + syslinux = installer "couldn't found ...
7
votes
2answers
387 views

Can I get infected in this case if I run a live cd?

I recently got rid of a nasty trojan on Windows and want to migrate to Linux(Ubuntu). I want to run a Live CD so that I can format an SD card to put my brand new firmware on my router and format the ...
2
votes
2answers
354 views

Software (SciTe) runs differently when opened from Terminal Vs GUI

When I open SciTe from the terminal everything works fine. When I open it via Ubuntu 10.04 GUI drop down boxes I get this error every time I try to run a ruby program: sh: ruby: not found At this ...
2
votes
1answer
994 views

Installing Rubymine without sun-java6-jre

I'm using Ubuntu 10.04 and am looking to install Rubymine. It seems every tutorial recommends installing sun-java6-jre before downloading rubymine but aptitude and apt-get are returning nothing, ...
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votes
4answers
13k views

I changed my hostname, why is my bash PS1 prompt unchanged

I changed my hostname by editing /etc/hostname and can see the new hostname using the hostname and hostname -F commands. But the shell prompt is still showing the old hostname. This is Ubuntu 11.0.4 ...
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votes
1answer
11k views

Should the mysql user have access to /var/lib/mysql?

First, let me say that mysql seems to be working perfectly on the machine. Still, when I su mysql and ls /var/lib/mysql, I get access denided. When I sudo ls /var/lib/mysql I see the data files ...
2
votes
2answers
2k views

Ubuntu Drivers on Chromium OS?

I recently managed to install Chromium OS to a flash drive. However, when I booted into Chromium OS, I found that neither wifi or ethernet worked, yet both wifi and ethernet work on my Ubuntu ...
2
votes
2answers
1k views

Adjusting Screen Size on Ubuntu Virtualbox

When running Ubuntu as a Vitualbox guest, with a Windows 7 64-bit machine as host, how can I maximize the screen so it fills up the whole monitor?
2
votes
1answer
189 views

Debian package issue: files are installing into '/'

I have been recently trying to package a small Python utility to put on my PPA and I've almost got it to work, but I'm having problems in making the package install the binary (a chmod +x Python ...
2
votes
1answer
9k views

Setenv error message

When I opened up the Gnome command prompt, several lines of the message: No command 'setenv' found, did you mean command 'netenv' from package 'netenv' (command) However, I have never used ...
2
votes
1answer
24k views

How to move a file to /usr/local in Ubuntu?

I am working in the most recent Ubuntu in a 64 bit machine. I am currently on the Gnome command prompt and I am trying to move a file under the Downloads directory to /usr/local. However, it gives me ...
2
votes
2answers
2k views

Run Ubuntu 10.04 LTS with Apache2 SSL with passphrase

I am setting up a Virtual Machine with Ubuntu 10.04 Lucid Lynx Server. I have been reading the section on setting up Apache with an SSL certificate within the book : "Beginning Ubuntu LTS Server ...
4
votes
4answers
6k views

Ubuntu vs. CentOS and Binary Compatibility

I am trying to install software that is built on CentOS 4.7. Do you know if it will also run in Ubuntu? I read CentOS is 100% binary compatible. Is the same true for the most recent version of Ubuntu? ...
4
votes
1answer
196 views

How can I fix a partition conflict?

I am running Ubuntu 10.10 on a 250 gb hdd. I chose at installation to install all on one partition (it was recommended for beginners). Unfortunately, I need to use Windows 7 too. I didn't want to ...
4
votes
3answers
1k views

Mathematica makes no sound under Ubuntu 11.04

After waiting for days for my license I now got the opportunity to install Wolfram Mathematica 8 at home. However, neither the Play nor the Speak functions are doing anything as it seems that ...
1
vote
1answer
2k views

What does deb-src mean in the sources.list?

I know I can download binary packages from repositories beginning with "deb", but what does deb-src do? E.g.: deb-src http://archive.ubuntu.com/ubuntu natty universe in /etc/apt/sources.list in ...
5
votes
3answers
945 views

Window Manager for TV

I have Ubuntu installed on my computer, which is hooked up to my TV. I have tweaked some of Gnome's settings to make it easier to use from my couch (display larger fonts, increase the size of the ...
2
votes
1answer
2k views

Grub2 Error Loading Kernel

I have been trying to start a small home server, using Ubuntu 10.04 Server edition. The installation process finished, and I got an error from Grub saying that it was "out of disk". After a bit of ...
1
vote
1answer
491 views

Different Desktop for Different Users

How do I (if possible) set different default desktop environments for different users in linux? e.g. when user X login, Gnome Shell starts, when user Y login, Gnome starts. (I'm using ubuntu if it ...
0
votes
1answer
98 views

(audio) Files transferred to Motorola Milestone does not stay there

I'm using gpodder to manage podcast on Ubuntu machine (thinkpad laptop). When I transfer files to the phone I see the files on the phone sd card via ubuntu file manager, however, when I disconnect the ...
2
votes
1answer
180 views

problem with rsync. forgot the ending dot and can't find beackupfiles now

I am new with linux and tried to backu my files doing this: rsync -arvu /home /etc /opt /var I was in the desired directory (on an external hard-disk drive) and logged in as su. but no files where ...
5
votes
1answer
4k views

xrandr command not executed within shell command called from udev rule

I own a Thinkpad with an UltraBase (a docking station). My operating system is Ubuntu 10.10. Now, I would like to react on the "docking" event by setting the resolution of my external display ...
0
votes
1answer
916 views

How to switch between workspaces in ubuntu

I sent a window to another workspace in Ubuntu 10.04 but I am not able to go to that workspace. How do I do that ? Please let me know.