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
votes
2answers
293 views

Some info pages missing

On my computer (ubuntu 12.04), some info pages are missing, like for tar. When I enter info tar, it opens the tar manpage instead of the tar info manual. So how can I install these pages on my ...
7
votes
1answer
5k views

how to enable command history of shell

I am using ubuntu 13.04, in this the command history of the shell is getting erased on close. Can someone tell me how to prevent this from happening?
1
vote
0answers
99 views

Wireless driver crashes when I'm too close to Access Point

This is the opposite of your usual WiFi problem: my signal strength is too high, now too low. Ever since I upgraded my access point to an Asus RT-AC66U, the WiFi driver for my Lenovo Y480 crashes ...
0
votes
1answer
634 views

slow Matlab on Ubuntu LTS and ZERO Swap

I was using Matlab2012 under Win7 and my algorithm was consuming a huge amount of memory though it was fast (80 seconds for one iteration). Now I am using Matlab2013 under Ubuntu 12.04 LTS and though ...
0
votes
0answers
158 views

System cannot load Ubuntu based OS's

I built a computer a few months ago, specs listed here. I then installed Linux Mint 13, but then when I wanted to install Ubuntu, the install would start, and I would select "Install". But when it ...
5
votes
3answers
18k views

Restrict FTP user to a directory

Sorry if this is an obvious question, but I don't have a lot of knowledge about this sort of thing, and I've googled for hours, nothing worked. So on a Ubuntu 11.04 server, I want to restrict a user ...
6
votes
1answer
3k views

Creating UFW rule to allow application to use dynamic ports

I am currently trying to get a Google Chromecast device to work through my Ubuntu 13.04 based computer. Currently, the Google Chrome extension shows "no devices found" as long as my UFW firewall is ...
1
vote
2answers
1k views

If some program is not working in Ubuntu, how to uninstall and reinstall

I'd be specially interested in a solution that covers the dependencies of this program, and not only the program as such. I have several programs that don't work after I updated to Ubuntu 13.04 from ...
1
vote
0answers
341 views

Memory test while booting . Unable to boot Ubuntu 12 04 LTS

I'm running Ubuntu 12.04 LTS. All of a sudden, my I'm unable to load the OS. A memory test is happening while I'm trying to boot the system.
2
votes
2answers
6k views

Automount not disabling in Ubuntu 12.04 or 13.04

I'm trying to disable the automounting of any usb device. I have this working in Ubuntu 10.04, but I'm trying to do the same in either 12.04 or (ideally) 13.04 but not having any luck. Everywhere I ...
2
votes
2answers
114 views

Why gnustep-config outputs nothing for any parameter?

Regardless of what I run: gnustep-config --debug-flags gnustep-config --objc-flags gnustep-config --base-libs It outputs nothing. How would I debug this? PS: the OS details: Ubuntu 12.04.2 LTS, ...
2
votes
1answer
3k views

Environment variable for ip address

I see somewhere people use: IF_ADDRESS="$(echo "$IP4_ADDRESS_0" | cut -d'/' -f1)" to get the IP address in a network configuration script. In my system, I create a script under the directory ...
4
votes
1answer
3k views

Can't ssh to beaglebone?

After I did: route add default gw 192.168.7.1 I also changed /etc/resolv.conf: nameserver 192.168.7.1 in order to share internet between Ubuntu in VMware. I've got internet working but after a ...
1
vote
2answers
4k views

Uninstall Aptana from Ubuntu

Can someone please tell me how to uninstall Aptana from ubuntu 12.04 LTS? I followed these instructions, in summary: Install the prerequisites with apt-get install. Download Aptana Studio Extract ...
4
votes
1answer
391 views

Ubuntu unattended install : echo keypress to dialog

Ubuntu 12.04 LTS Server 64 My unattended-mode bootstrap.sh script contains: apt-get upgrade -y I know that during execution a primitive UI for GRUB installation will be shown which requires ...
0
votes
3answers
557 views

How can I first download KDE files and then install them offline on Ubuntu?

How can I first download KDE files and then install them offline on Ubuntu?
0
votes
1answer
762 views

XUbuntu: Window manager stopped to work

I installed XUbuntu on my netbook and it worked like a charm for about a week. Then, today, the Software center application crashed and since then the window manager stopped to work. Thera are ...
7
votes
1answer
14k views

where is /var/log/messages

I have several sources saying that /var/log/messages has system log message but I don't have that file (Ubuntu 11, Debian). Is the messages file somewhere else now? I tried using locate to look for ...
2
votes
2answers
99 views

uXlib.h Which package have this lib file?

I am getting an error uXlib.h not found while compiling a program, written in c++ I think the lib file is related UIM/X from the following link motif.ics.com/sites/default/files/ReferenceManual.pdf‎ ...
1
vote
0answers
128 views

No microphone input - VIZIO CT15-A5 and 12.04 LTS (64)

I have the VIZIO CT15-A5 and 12.04 LTS (64) is running smoothly .. Only one issue.. I cannot record sound or use Skype due to lack of mic input. I have tried turning up the sound using the alsa ...
17
votes
1answer
4k views

How do I make my laptop sleep when it reaches some low battery threshold?

I'm using Ubuntu, but I have i3 as my window manager. Under i3, when my battery reaches 0%, the computer will just abruptly shut down, no warning or anything. Is there a simple script or ...
0
votes
2answers
591 views

Pg Dn key returns tilde (~)

When I hit Page Down in terminal (I'm using Ubuntu 12.04), strangely I get the ~ (tilde) character. This is annoying especially when I searched my command line history and decided to go to the bottom ...
2
votes
0answers
28 views

How to create an upstart process in Ubuntu? [duplicate]

I am trying to create a process to be automatically started and maintained by Ubuntu's upstart (Ubuntu 12.04). I have been looking at this page as well as on this page and I am aware of the upstart ...
17
votes
2answers
56k views

How to start a service automatically, when Ubuntu starts?

I am using Ubuntu 12.04 and want to have a service starting, when the system is booted normally. As 'service' I understand some code, for example cd my_directory; my_command -host 0.0.0.0 -port ...
1
vote
3answers
11k views

Darcula dark theme for Eclipse

I wonder if there is a way to use Android Studio Darcula theme in Eclipse? I am trying to make Eclipse look a little bit like AS. So far I have made changes to the editor window and I have no idea how ...
0
votes
1answer
468 views

Processing multiple mails in a Postfix mailbox by making cronjob run per second-is that considered good practice?

I need to process at least three thousand incoming emails an hour that are received in a postfix mailbox. Processing involves extracting email attachments and sending the content of an email ...
3
votes
2answers
302 views

Silencing all stdout during bootup

I am looking for a completely silent bootup of my Ubuntu Server 13.04 installation (dumped to file rather than stdout). What I want is the screen to be blacked out (eventually replaced with a logo) ...
2
votes
1answer
1k views

How does the screen backlight work?

Everything about the backlight settings and controls work for me except: Backlight resets to max. on every reboot/boot. The backlight minimum goes on to complete black screen, instead of the minimum ...
0
votes
2answers
625 views

apt-get failed to fetch package

I want to install curl on my ubuntu: sudo apt-get install curl It gave the following error: Err http://it.archive.ubuntu.com/ubuntu/ maverick/main curl i386 7.21.0-1ubuntu1 404 Not Found [IP: ...
1
vote
1answer
2k views

Finding log file of ntp daemon in Ubuntu 10.04 LTS

My Ubuntu is set to run ntp before dovecot at startup. (See my earlier question: The rc0.d,rc1.d,... directories in /etc in Ubuntu 10.04 LTS) However, I suspect that dovecot may have finished ...
4
votes
1answer
130 views

My Linux certifiction book talks about rcatd but I don't have it

My Linux certification book talks about using rcatd commands. When I try rcatd status I get command not recognized When I try rcatd start I get command not recognized sudo apt-get install rcatd gave ...
1
vote
2answers
7k views

multicast is enabled on ubuntu?

I have one of my Ubuntu machine- rkost@rj-vm9-14105:~/infinispan/infinispan-server-6.0.0.Alpha1/bin$ uname -a Linux rj-vm9-14105 2.6.35-22-server #33-Ubuntu SMP Sun Sep 19 20:48:58 UTC 2010 x86_64 ...
0
votes
0answers
312 views

Zorin OS 7 Kernel Panic and boot failure

So I decided to try out Zorin OS 7 x64. Everything was fine during the installation. After a few minutes of browsing the internet with Chrome I got this error: CtrlAltDel didn't work, so I hit ...
1
vote
1answer
393 views

Ubuntu LTS : best practice for installing gems

Ubuntu 12.04 LTS Server I'm relatively new to Unix/Ubuntu. I need to install the ruby gem libopenssl-ruby. I know that Ubuntu LTS versions maintain lists of authorized package versions. apt-get ...
5
votes
2answers
1k views

Setting environment variables for system users

I have a couple of system users that have no password set, login disabled and no home directories. They are used solely to run FastCGI processes for a couple of websites. I want to avoid hard coding ...
0
votes
1answer
255 views

How to get my files from my encrypted home folder on Ubuntu 12.04?

Last night there was a power outage and now my computer will not boot up. After pushing the power button and seeing the BIOS I only see a black screen with a white cursor at the top left of the ...
1
vote
1answer
812 views

Xinput device disable doesn't work for all mouses

There are 2 mouses connected to one computer and I want to disable them. I tried to do it using xinput. It works for one mouse (OM), but it doesn't for second (SIGMACHIP Usb Mouse). Second mouse is ...
0
votes
0answers
244 views

Chromium omnibar not showing search suggestions?

I am using chromium browser on my ubuntu 12.04 and it doesn't show any search suggestions when I type search terms in omnibar. I checked settings, everything fine there with checkbox ticked for ...
3
votes
1answer
6k views

Unable to ssh into Ubuntu 12.04 LTS [could not resolve hostname (hostname): Name or service not known

I'm just starting with a clean install of Ubuntu Server 12.04. I've run: $ sudo apt-get update $ sudo apt-get upgrade I've added the following to /etc/hosts: 127.0.0.1 (hostname) The file ...
3
votes
1answer
7k views

Can't start Tomcat on Ubuntu

I installed Tomcat on Ubuntu. Then I created a new user. Then did: liferay@web-svr:~/liferay-portal-6.1.1-ce-ga2/tomcat-7.0.27/bin$ chmod +x *.sh Afterwards, I added JAVA_HOME and PATH in bash like ...
0
votes
0answers
35 views

Ubuntu directory permissions - Sticky bit - Prevent deletion of a file [duplicate]

I have a database called oss-pwds.kdb located in a folder /keepassx. This is a password database that I use with the KeePassX software. I want to allow all members of the "oss" group to open and ...
1
vote
0answers
253 views

debootstrap error in Ubuntu 13.04 raring

I'm trying to create a file system in Ubuntu with the command: sudo debootstrap --foreign --no-check-gpg --include=ca-certificates --arch=armhf testing rootfs http://debian.raspbian.com/debian but ...
1
vote
0answers
221 views

vaio grub removal after default windows setup

After installing default factory windows xp from VAIO VGN-NR, and hence removing the Ubuntu on its hard drive, the grub does not allow the windows to boot up properly, giving the prompt: "no such ...
5
votes
1answer
6k views

Are Ubuntu PPA Repositories usable on Debian wheezy?

I'm using Debian wheezy and i wonder are Ubuntu PPAs hosted at Launchpad safe to be added & used on Debian?
2
votes
1answer
1k views

private memory calculated by pmap, a combination of virtual memory size and resident memory size?

You can use the ps command to get the virtual memory size and the resident memory size of a process: $ ps aux | grep apache2 USER PID %CPU %MEM VSZ RSS TTY STAT START TIME ...
2
votes
1answer
744 views

Alternatives to Unity panel

Is there an alternative to Unity (top) panel that supports Mac style application menu integration? I'd like to have a Unity-like user experience on Debian.
3
votes
0answers
3k views

Permission denied when Ubuntu is attempting to mount to a remote Windows share folder

Fellow guys, I encountered the error when I's mounting my Ubuntu server to a remote Windows share folder, the following is the error on terminal after I typed command line 'mount -a': mount ...
1
vote
2answers
178 views

Package name suggestion in fedora

In Ubuntu when an app is not installed and in Terminal you type for example gvim it says that this app is contained in package vim-gnome and try installing that but in fedora that doesn't happen with ...
1
vote
2answers
8k views

Failing on apt-get update

Very recently when I have been attempting to check for updates on my laptop (Ubuntu 12.04), the check fails. sudo apt-get update: W: GPG error: http://us.archive.ubuntu.com precise Release: The ...
1
vote
2answers
418 views

Raid5 Device Has Less Space Than Expected

I have 3 3TB drives, and have raid5ed them together. I would expect to get a resulting device around 6TB. The command I used: mdadm --create md0 --level=5 --raid-devices=3 /dev/sda1 /dev/sdb1 ...