Ubuntu is a free open source operating system based on the Debian GNU/Linux distribution. Consider using http://askubuntu.com/ to ask questions about it.

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10
votes
10answers
18k views

How to convert .ogg to .mp3?

Ubuntu ripped a CD for me into audio files but they are all .ogg format which I can't play on my MP3 player. How can I convert .ogg files to .mp3 files?
9
votes
3answers
5k views

Why won't my xmodmap command run on startup/login?

I want to run this command every time I log in (or every time I start up, if that doesn't work): xmodmap -e 'keysym Delete = Menu' -e 'keysym Menu = Delete' I've tried many things. I put the command ...
9
votes
4answers
64k views

Is there a chkdsk equivalent available for Ubuntu?

When I asked this question about recovering data from a damaged Linux partition, people recommended booting from a Windows installation disk and running Chkdsk. Well, I still don't have a Windows ...
8
votes
4answers
1k views

How can I return a Microsoft License delivered with a Dell computer?

I have to change my current single core Pentium computer to a new Dell XPS8300. Unfortunately, I'm deadly allergic to Microsoft and someone where I work says I can return the Microsoft Windows that ...
8
votes
4answers
781 views

why ./ is needed to run a runnable file?

I'm using ubuntu and I notice many of my runnable scripts won't run unless I precede theme by ./. For example, if I have a perl script: /home/me/script.pl and I'm currently in /home/me, typing ...
8
votes
5answers
2k views

Disadvantages of not having a swap partition

I recently installed Ubuntu 10.04 on my laptop. Due to space constraint of the SSD, I did not set a swap partition for the OS, and I have 1.5GB of RAM. There's a warning during installation, but I ...
7
votes
3answers
6k views

Mono sound output in Ubuntu?

Is there an easy way of forcing mono sound output - for one ear, one earphone, one speaker?
7
votes
3answers
6k views

Install dependencies for a dpkg package?

I have a dpkg file that i want to install. But I get error messages that it is depending on other packages. I used: dpkg -i file.dpkg Is there a way to install dependencies automatically without ...
6
votes
3answers
5k views

MemTest is returning large numbers of errors in Test 7, no matter what ram I use

I have been having issues with this computer, and since MemTest said that there were errors on my RAM, I figured replacing it would fix them... However, after replacing the old stick of RAM, I am ...
6
votes
2answers
26k views

mount gives unknown filesystem type 'vboxsf'

I'm getting an error message mount: unknown filesystem type 'vboxsf' when trying to mount a shared folder on my guest Ubuntu machine. I have a Windows 7 machine running 4.1.22V Oracle VM VirtualBox. ...
6
votes
1answer
5k views

How is the percentage of CPU usage calculated?

In my Ubuntu 12.04, with psensor, I saw a percentage number updated for cpu usage. I wonder how this percentage caculated? Specifically, what is the numerator and denominator in the ratio? Thanks!
6
votes
1answer
2k views

reboot after power failure for Mac mini running Ubuntu

I have Ubuntu 10.04.1 (Lucid) running on a 2010 Mac Mini (4,1). It's a server, so I want it to be able to restart after a power failure ("server mode"). In Mac OS X, you can check "Start up ...
5
votes
2answers
399 views

Why is elasticsearch user running SSHD?

My home network is frequently down and I've narrowed down the problem to my ubuntu box. $ ps -ef | grep elastic elastic+ 11183 1 0 8월10 ? 00:07:49 [.ECC6DFE919A382] eugenek+ 14482 14453 0 ...
5
votes
2answers
17k views

pam_unix(cron:session): session opened for user root by (uid=0)

In my SSH log /var/log/auth.log I have the following 2 rows (which are repeated every hour): ... Jan 22 03:28:01 mam CRON[15934]: pam_unix(cron:session): session opened for user root by ...
5
votes
2answers
14k views

How to save settings on bootable USB drive?

I have a bootable USB drive w/Ubuntu 10.04. I use it to learn Ubuntu and to diagnose, repair, or recover other people's computers and files. The problem comes when I constantly have to keep ...
5
votes
5answers
2k views

Rip DVD on Linux

I want to rip a DVD and store it in a good and compressed format. What software to use for that and what is the best format; I want best quality and low file size. +1 if I don't have to install any ...
4
votes
2answers
3k views

How to save a ntfs partition which suddenly became empty

One ntfs partition of my laptop was suddenly wiped out without any notice to me, when I rebooted from Windows 7 to Ubuntu 12.04 today. I am in need of help to save my files on that partition, which ...
4
votes
2answers
851 views

How to reduce VM size?

I have a Virtualbox VM, with a .vdi that is taking 49gb in the host machine. I may have used that much space inside the VM once, but now I'm only really using about 6gb. I tried this command for ...
4
votes
3answers
23k views

apt error: Could not perform immediate configuration on

I have issues running the following command: root@X100e:~# apt-get dist-upgrade Reading package lists... Done Building dependency tree Reading state information... Done Calculating upgrade... ...
4
votes
2answers
5k views

How do I determine whether my SSD (Samsung UM41) supports the TRIM command?

I'm running Ubuntu 10.04 and lshw shows a "SAMSUNG SSD UM41". Any way for me to determine (1) that my SSD supports TRIM, and (2) that my OS and FS (ext4) are actually using this? Update: Rather than ...
3
votes
1answer
6k views

Should I be able to hear audio using X11 forwarding?

I use a portable virtual box (running Ubuntu) at work. I funnel my web browsing through an ssh link back to my home PC. Today I was playing around with X11 forwarding to access applications running on ...
2
votes
3answers
7k views

How to recover a file overwritten with another in Linux?

I did this on the command line (Ubuntu 12.04 , ext4) mv some_arbit_file required_file Is there any way I can recover required_file? I had put so much work into this. I usually backup files but I ...
2
votes
2answers
4k views

How to convert physical Ubuntu operating system into a virtual machine?

A while ago I turned my PC into dual boot with Windows and Ubuntu. But my experience is, that I rarely boot into Ubuntu, so I wanted to make it available as virtual machine in Windows rather than as a ...
2
votes
2answers
6k views

Running a script on startup before X starts in Ubuntu 9.10

I have a script that I want to run at startup to switch X-configs depending on location, but I can't seem to find out where to put it in order to get it to run before X is started. This results in me ...
2
votes
5answers
524 views

How can I customize my Ubuntu installation?

I just installed Ubuntu on my netbook, and I'd like to customize it but don't know where to start. Do you know of any tips or guides for customizing Ubuntu?
2
votes
3answers
12k views

Remap Keys in Linux

I'd like to switch my Ctrl and Alt keys under Linux (to make it more Mac-like). How do I do this? If it helps, I'm running Ubuntu 9.04.
1
vote
1answer
8k views

Cannot mount Windows 8 partition disk on Ubuntu 12.10

I cannot mount Windows 8 partition disk on Ubuntu 12.10. My Windows 8 is installed on "C" partition, and I have another "D" partition. I can easily mount "D" partition, see files and make changes on ...
1
vote
3answers
7k views

I accidentally hid my Gnome Panel

I got a new tablet pc, and in attempt to hide the empathy mail icon, accidentally made the entire panel dissappear. (The one at the top that has applications/places/system, and battery life/network ...
11
votes
6answers
14k views

Why is 64 bit Ubuntu not recomended for daily usage?

I am just in the process of setting up a new laptop which came with Windows 7 64 bit installed. I am going to set it up to dual boot Windows 7 and Ubuntu. When I went to get the Ubuntu download I ...
10
votes
1answer
15k views

How to install gvim on Ubuntu 10.10?

I checked under Software Center, but I could not find it. How can I install gvim?
8
votes
5answers
4k views

Upgrading Ubuntu 9.04 to 9.10 when Update Manager doesn't let you

I've been trying to upgrade my installation of Ubuntu 9.04 to 9.10, but all of the instructions I've found haven't been helping. They mostly say to run the update manager and it'll tell you that ...
8
votes
5answers
2k views

How can I sync two firefox's that run on different Operating Systems?

I have a machine that I dual boot Windows 7 and Ubuntu 9.04. I have Firefox 3.5 installed on both. I'm always switching back and forth and have one bookmark in one but not the other. How can I sync ...
7
votes
1answer
5k views

installing the latest R version (2.13.0) on Ubuntu 11.04

I just upgraded my Ubuntu desktop 10.10 to 11.04. I everything works fine except when trying to update the current R 2.12.1 to R 2.13.0. I followed the readme: ...
6
votes
4answers
4k views

Stream audio from Windows 7 to Ubuntu

I have an Ubuntu 9.10 (alpha) computer as my primary machine, but also have a Windows machine which I keep my iTunes music on. My high-quality speaker system is connected to my Ubuntu box. Is there ...
5
votes
1answer
14k views

Disable hardware acceleration for Flash player in Linux

The latest official version (and supposedly the last version for Linux) of Flash player has some interesting issues on Linux systems. The biggest issues which have summarily been confirmed on the ...
5
votes
3answers
18k views

How can I restore GRUB without a live CD?

I realize that this is a duplicate of a question asked before, but in that question the asker managed to find his live CD and no real answer appeared, thus I am re-asking it. I managed to screw up my ...
5
votes
2answers
10k views

How can I use quotas in samba?

I have a simple set-up with just one public share on my configuration file. How can I restrict its size?
5
votes
2answers
2k views

Dual internet connection setup

So I'm currently connected to two internet connections. My 3G network and the company's wireless connection. But I don't really understand which one I'm using. Is there a way to find out which ...
5
votes
7answers
7k views

BIOS corrupted? How to proceed? Acer Travelmate 290

I have a older ACER Travelmate 290 (manufactured in 2002 or 2003), which I recently tried to upgrade to Ubuntu 9.10. After doing the upgrade process it appeared as if I had a problem with my x server ...
4
votes
1answer
3k views

How to create a virtual sound device in Linux?

I am looking for a way to create a virtual sound device in Linux, which would use channel outputs of my sound card. I have no experience in Linux and therefore am asking more experienced users for ...
4
votes
4answers
634 views

Problem with shared ssh keys

Following the process I've used in other environments, I've tried setting-up shared keys between my Mac and my CentOS 4 webserver. I've seen the same problem with my older Ubuntu 7.10 workstation ...
4
votes
3answers
5k views

Is it possible to use a laptop as an external monitor?

I need to create a multi-monitor setup for my desktop computer but I have no additional monitors with me right now, aside from my laptop. Is it possible to use my laptop screen as an external monitor? ...
4
votes
3answers
2k views

Update to Ubuntu 9.10 from Ubuntu 9.04 [duplicate]

Possible Duplicate: How to upgrade from Ubuntu 9.04 to Ubuntu 9.10 What are the steps to follow to upgrade from 9.04 to 9.10 as seamless as possible? I have just installed 9.04 and ...
4
votes
3answers
852 views

Can I run Microsoft Office 2007 under Ubuntu?

I am an Ubuntu user, but was wondering if it was possible to run Microsoft Office. Will Wine allow me to run it?
3
votes
3answers
12k views

Ubuntu: Screen resolution doesn't fit size of monitor (Vmware)

I have just installed ubunto in Vmware Player and it works great, but all of the resolutions it gives me there isn't one to fill the entire screen. I was scouting around the net and found this, - ...
3
votes
2answers
403 views

Linux Podcast Playback with Resume Capability

I'm asking a question similar to but distinct from this one Is there a Linux player that can resume playback of a podcast episode where it was last left off? This is the default behavior of iTunes ...
3
votes
2answers
5k views

System Time is Wrong in Windows 7 after dual booting Ubuntu

After installing Ubuntu, the time in my Windows 7 is wrong on start up. Even after updating the time in the Internet Time Settings manually, it still reverts back to the incorrect time after a while. ...
3
votes
2answers
2k views

windows 7 not booting after ubuntu partition deletion

I had on my laptop windows 7 and ubuntu server 9.10 (the partition with windows 7 was automatically selected at boot time). Today I wanted to install ubuntu 10.4, and for that I deleted the 9.10 ...
3
votes
3answers
303 views

Windows to Ubuntu desktop Remote Desktop?

Is there an equivalent to Remote Desktop Connection that I can use to remote into my Ubuntu desktop at home from a Windows machine? Preferably this would be free.
3
votes
1answer
2k views

Clonezilla disk to disk clone on a dual boot ubuntu karmic & XP setup - cannot open '/boot/grub/device.map'

I just tried to clone a failing existing boot drive for a dual boot system with Ubuntu karmic and Windows XP installed using Clonezilla. The cloning worked fine right up until the end when I got the ...