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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3
votes
1answer
289 views

how do I enable fluxbox instead of Gnome by default in Ubuntu

I'm working on a VPS which I can control with PuTTY and FreeNX. I don't have enough RAM for Gnome, so I want fluxbox to start by default instead of Gnome. how do I do that?
3
votes
3answers
1k views

A system-wide way to set or get $JAVA_HOME in Ubuntu?

I wonder whether Ubuntu itself provides a system-wide way to find the current JAVA_HOME or whether there is right place for setting JAVA_HOME. Mac OS X does well in this, for /usr/libexec/java_home ...
0
votes
3answers
214 views

Why “Linux Generic” use RPM extension in MySQL download page?

I need to install MySQL 5.5 from source in Ubuntu 10.04. So I'm trying to find tar.gz source from here. But when choosing "Linux Generic" from the drop down menu, it is showing an RPM extension I ...
0
votes
2answers
356 views

Will suspension or hibernation of OS suspend running programs?

I am running a program in my terminal. BUt I need to suspend or hibernate the OS (Ubuntu 12.04) for a while. Do I have to Ctrl-Z my running program before doing that? Or will suspension or hibernation ...
9
votes
4answers
33k views

“Input/output error” when accessing a directory

I want to list and remove the content of a directory on a removable hard drive. But I have experienced "Input/output error": $ rm pic -R rm: cannot remove `pic/60.jpg': Input/output error rm: cannot ...
4
votes
3answers
3k views

How do I switch from Ubuntu desktop to Ubuntu server?

I'm currently setting up a home server using a very, very old PC. It has Ubuntu 11.10 installed on it, but it can't actually handle the GUI. I want to install the server edition of Ubuntu, which is ...
1
vote
1answer
457 views

How does apache determine what directory to show from public_html?

I am using Ubuntu 12.04 and have configured apache to serve from ~/public_html. I am trying to serve some directory contents over http on LAN. When I did the following: ln -s ...
1
vote
2answers
4k views

How to fix non-responsive Ubuntu system?

I use Ubuntu. Sometimes, the system does not have any response with mouse and keyboard. Is there any way to solve this problem except hitting the reset button on the machine?
2
votes
1answer
180 views

Should 'LC_ALL=fr_FR.UTF-8 date +%x' give consistent results across machines?

The %x format specifier to the date utility should, according to the man page, use the locale specific date format. However, when I specify the same installed locale and try this on two different ...
2
votes
2answers
567 views

RAM usage doesn't add up? (Free+used < total)

Lately I've been noticing that my monitoring script which reads from /proc/meminfo and /proc/<pid> has been showing odd readings, where several hundred MB seem to be missing. htop is showing the ...
0
votes
1answer
150 views

relation between unity on ubuntu and unity game engine?

I am just curious to know if there is any kind of relation between Unity(the latest shell interface for gnome in ubuntu) and the Unity game engine, apart from having the same name ? I'm no expert in ...
2
votes
2answers
3k views

telnet to localhost and loopback device IP works, but not LAN ip (Xen + Ubuntu)

I have set up Xen + Ubuntu per the instructions at https://help.ubuntu.com/community/XenProposed. I am now ready to install a HVM guest OS (Ubuntu Desktop 12.04). After I start my HVM guest OS xen ...
0
votes
2answers
682 views

Linux Ubuntu / Mint Live CD user-home customization

I'm trying to customize Linux Mint Live CD with these instruction (uck doesn't work for me). What I want is to have more icons at its Live CD user (/home/mint/Desktop) but I can't find /home/mint on ...
2
votes
3answers
522 views

Dead (compose) keys not working in GTK apps since upgrade

I'm running Kubuntu with KDE as my main desktop environment. A while ago I set up dead keys so I can type Chinese pinyin and other accented letters and special characters. As a side note, I use IBUS ...
5
votes
2answers
8k views

domain 'ubuntu-hvm' does not exists, xen + ubuntu, hvm guest os installation problem

I am following the installation/setup instructions at https://help.ubuntu.com/community/XenProposed to install ubuntu + xen. I was able to install a PV guest OS. However, when I got to the HVM guest ...
3
votes
1answer
6k views

chmod: What does the `+a` parameter mean?

I was following a tutorial and it told me to run sudo chmod +a "SOME_PARAMS" some/dir I was surprised to see that fail telling me chmod: invalid mode: `+a' So I wonder: What does the +a mode ...
4
votes
2answers
1k views

Why does debian and ubuntu default to runlevel 2?

I never thought about this before, but I was wondering why they chose runlevel 2. Every other distro and OS I've used default to runlevel 3 (with the exception of AIX which also defaults to runlevel ...
4
votes
4answers
4k views

How can I check if mysql is installed using a bash script?

I need to check if mysql is installed from within a bash script. What would be an efficient way of doing that? I thought I could do this: if [ ! -f `which mysql` ] ; then echo "foo" fi But I ...
2
votes
2answers
116 views

Is there an easy way to stop and reissue a command?

I am doing Node.js development in Ubuntu and I'm curious if there is a way to quickly stop and restart a node server. I run this command to start my app: $ node app.js When I make changes to ...
7
votes
5answers
1k views

Unable to connect to a wifi network with a special SSID

My current wifi network (and i'm writing this with the help of Windows -.- ) has a special character in it's SSID: "ö", a so-called "umlaut". If changing the SSID is not an option, how to connect to ...
0
votes
0answers
887 views

Wireless connection connecting and disconnecting all the time

I am running Ubuntu 11.04 on my laptop and I use a 3G USB modem for my Internet connection. I wanted to share this Internet connection with my girlfriend's laptop that is running Window XP. ...
10
votes
4answers
3k views

'mv' equivalent of drag and drop with replace?

In a GUI environment, a drag-and-drop with replace will replace files and entire directories (including contents) with whatever is being copied in. Is there a way to accomplish this same intuitive ...
2
votes
2answers
10k views

Problem with SSH “ Write failed: Broken pipe ” [duplicate]

Possible Duplicate: What does the Broken pipe message mean in an SSH session? I run a program on server with SSH ! the program runs normaly and after a period of time i receve a message ...
5
votes
3answers
1k views

In awesome window manager, how can I make key bindings send keyboard events?

I don't think that title probably helps very much, but here's my issue: I'm using the awesome window manager and am trying to make my key bindings to be similar in flavor to OSX for special keys. ...
1
vote
0answers
276 views

Adding a second user to a system group? [closed]

I am trying to get around a permission issue I am having. The only reasonable option (other than ACL) is to add the user that needs access to the system group of the user that has access. Yes, the ...
3
votes
1answer
1k views

inode limitation on a 500GB hard disk? Can you explain please?

I am launching a social networking website on LAMP Stack on Linux Ubuntu, I know that people are going to upload lots of pictures. Let's say I have 5000 users and each user upload a minimum of 100 ...
1
vote
3answers
2k views

Can't install pg gem

I cant get the pg gem to install. I have tried --with-pg_config and it didnt work. Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension. ...
1
vote
1answer
545 views

Hiding files on FTP server

I have an Ubuntu server and I run an FTP server on it. I changed its folder structure and want to restrict access of users to some of the files not all of them in a way that other files be hidden to ...
1
vote
0answers
388 views

Very slow Ubuntu server [closed]

I have an Ubuntu Server with 200MB RAM and 400MB swap space that has no heavy load. I used top to verify its load. However, it's very slow and takes several seconds to execute a ls command or other ...
2
votes
2answers
758 views

Retrieve deleted files on Linux VM guest

I use Ubuntu on VMware to learn how to use Linux. I used rm on some folders and mistakenly deleted some files from /etc. I have some very important files on it. Is there a way to retrieve that files, ...
5
votes
4answers
19k views

SSH login with clear text password as a parameter?

I need to login to a user that I've created on a remote host running Ubuntu. I can't use an ssh key because the ssh login will happen from a bash script ran within a server that I wont have access to ...
2
votes
2answers
1k views

Compiling FreeRTOS on ubuntu

How could I compile the FreeRTOS Source Code and run it (possibly on qemu) on Ubuntu 11.04?
7
votes
2answers
5k views

Configuring syslogd in Ubuntu

In CentOS and many other distros you can configure syslogd using /etc/syslog.conf but in Ubuntu there is no such file. Which file I should edit for configuring syslogd in Ubuntu.
2
votes
2answers
3k views

How do I install the cs_CZ.ISO8859-2 locale on Ubuntu 12.04

I need the cs_CZ.ISO8859-2 locale to exist on Ubuntu 12.04 so a specific unit test can pass. The test makes the following call: std::locale("cs_CZ.ISO8859-2") On my OS X Lion install, this locale ...
2
votes
0answers
312 views

acpi_listen returns different result in Ubuntu than Arch Linux

Ubuntu is able to detect my Lenovo "Mic Mute" button with acpi_listen, but when I try it on Arch Linux, there is no output available. Model: Thinkpad X220 4290LY9 Tried to add acpi_osi=Linux in ...
4
votes
2answers
5k views

What are the ramifications of not having a valid partition table?

I recently upgraded my Ubuntu from 11.10 (Oneiric) to 12.04 (Precise Pangolin) on a Dell Inspiron B130 Laptop. When I run fdisk -l it says that my HD doesn't contain a valid partition table. I have ...
1
vote
2answers
308 views

Install Ubuntu for Android

Canonical has an item on their site called Ubuntu for Android. This is a special distribution of Ubuntu which integrates with the Android system. Their website mentions that it is specifically ...
-5
votes
1answer
151 views

Linux kernel compiling commands [closed]

I'm trying to make a mini operating system (using the linux kernel). I'm planning on it being for x86 and I'm trying to make it so that it not only runs on qemu but also on a real device. What are the ...
2
votes
1answer
438 views

Mail Dispatcher Agent: Could not access the outbox folder (Unknow error. (Failed to fetch the resource collection.))

Why am I receiving this error message on Kubuntu since I upgraded to 12.04 and how can I make it stop appearing? It appears as a pop up balloon above the system tray. Mail Dispatcher Agent: Could not ...
2
votes
1answer
1k views

Have Samba “proxy” for another server?

This might be a weird question, but can you have Samba "proxy" for another server? IE if mount a share on \\server1\someshare the server transparently proxies it to \\otherserver\randomshare. Note ...
1
vote
3answers
131 views

Is there a way to determine when a binary was compiled or installed?

Is there a way to determine when a binary was compiled or installed? For example, I have a binary mdrun_d, and I would like to know when this particular binary was compiled or installed. The system ...
3
votes
1answer
825 views

Repackaging a Debian package

I need instructions on how to do repackage a .deb package. Situation: I have a .deb package for an application with no source. I need to modify a Description field, save the file change and ...
4
votes
1answer
1k views

Run a script after lid is opened

I would like to run a script after my laptop lid is opened. is there anything like rc.local that is run after the laptop wakes up after suspending? I use Ubuntu 12 (I need it because some of the ...
1
vote
2answers
698 views

SSH into Ubuntu VM remotely

I don't have much Linux or networking experience, but I'm trying to SSH into an Ubuntu virtual machine from outside of my home network. The Ubuntu virtual machine (running inside VirtualBox) is ...
1
vote
2answers
528 views

KUbuntu 10.04 / Dolphin File Manager: Is there a way to make .desktop files display the filename the same as the NAME= in the metadata?

As shown in the below screenshot (sorry I couldn't make it inline - Seems points on other stackexchange subforums don't count here), if I have a Folder Widget setup to point to the Desktop "place", ...
1
vote
2answers
2k views

Recover many files using ntfsundelete

I am using the following command to scan for deleted files: sudo ntfsundelete /dev/sda1 -S 400m-20g -p 100 How can I restore the all of the results? I have tried: sudo ntfsundelete /dev/sda1 -u ...
2
votes
2answers
693 views

How can I run my own scripts in kate 3.8.2? “External tools” isn't available in the plugins section

I am using Kubuntu 12.04 LTS. How can I run my own scripts in kate 3.8.2? It appears that the plugin named External tools is no longer available. I would like to run Python or shell scripts in kate ...
4
votes
1answer
3k views

xinerama, 2 cards, 3 monitors

I've been trying to get this right and I'm so nearly there, but not quite. This machine has an Intel adapter with one monitor, and an ATI adapter with two. I'm happy to use xinerama to get this ...
1
vote
2answers
1k views

Split a physical X display into two virtual displays?

I just purchased a TripleHead2Go and configured it using OSX. What this box does is simply take 1-3 multiple external monitors and combine their signal into one single resolution. I'm using two ...
2
votes
1answer
404 views

Can I disable dead keys for a single application?

I am unable to properly use dead key characters ( ' " ^ ) on (k)ubuntu 11.10 and 12.04 in arduino (a processing based application, at least version 0022 and 1.0). Can I disable dead keys for specific ...