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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11
votes
1answer
9k views

swapon: Operation not permitted

I'm running this as root, obviously. I've created a file called /swap/sw1, by dumping 512 megs of /dev/zero into it. I then ran mkswap, which said: Setting up swapspace version 1, size = 524284 KiB ...
10
votes
4answers
4k views

Use #!/bin/sh or #!/bin/bash for Ubuntu-OSX compatibility and ease of use & POSIX

I know that I can use either as the first line of scripts to invoke the desired shell. Would #!/bin/sh be recommended if compatibility with all unix systems is an absolute requirement? In my case ...
8
votes
3answers
1k views

Harddrive I/O per Pid

is there any way to see the disk I/O per pid/process ? Monitorix shows me the following and correct me if I´m wrong, but it looks like that the harddrive is slowing down the whole system: UPDATE #1 ...
8
votes
3answers
19k views

Automating textual input from a bash script without using EOF

I'm running Ubuntu Linux. Suppose there is a program called myprogram. This program prompts the user for input; specifically, the user must type an integer when prompted and press Enter. I would ...
6
votes
2answers
26k views

Cloned Linux system and /etc/udev/rules.d/70-persistent-net.rules

I set up an Ubuntu system and configured it properly, including defining eth0 in /etc/network/interfaces. I then imaged that system and cloned it on a new system. When I booted up the system the ...
6
votes
3answers
3k views

Get diff changes between original files installed with apt and current files

I installed php5-fpm package using apt; then I made some changes to the PHP configuration files. Now I would get the diffs between the original files versions (the ones of the package installed) and ...
6
votes
3answers
2k views

How does one open a new window from the shell with a specific size and position?

For example, say I wanted to start gnome-terminal with it's northwest corner at 0,0, and make the window 736x434 pixels (apparently the default, which allows for an an 80-character by 24-character ...
6
votes
2answers
29k views

Why do I get an “rsync: failed to set times on … : Operation not permitted (1)” error on Ubuntu 10.10 with SME Server 7.4? [duplicate]

I am trying to cron an rsync via ssh between two fileservers that are running SME Server 7.4 and Ubuntu 10.10, respectively. The first rsync worked just fine (for reasons that I do not know), but now, ...
5
votes
1answer
9k views

Run 64 bit app on 32 bit system (Ubuntu)

All the questions I've seen refer to running a 32 bit app in a 64 bit system. I'm running Ubuntu 12.04 32 bit (actually elementary OS Luna, which is based on it) and I'm trying to run a 64 bit app ...
5
votes
2answers
1k views

Simulate x-screen?

I'm working in a koding terminal running ubuntu 13.04, and I'm trying to run an application that requires an x-screen (even to run in terminal mode). I am unable to connect with x11 forwarding, and ...
5
votes
3answers
2k views

Performing accurate snapshot and incremental backups to a remote server

I have a few Ubuntu (and potentially RHEL) servers I'd like to back up to a central backup server (via rsh/SSH). I'd like to do both snapshot and incremental backups. The goal is that if one of the ...
5
votes
1answer
5k 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 ...
5
votes
3answers
2k views

Installation date of Ubuntu

How can I determine when Ubuntu was installed in my computer? There was a different question posted here, but none of them is helpful.
5
votes
3answers
449 views

Suspending my laptop breaks ethernet over firewire, are there commands which can fix it?

As mentioned in this question I am using a firewire cable to provide a private network between my laptop and my desktop, because it makes using the screen sharing program synergy much nicer than using ...
4
votes
1answer
897 views

Why is this static route not taking effect?

Original Question I am running Ubuntu and network manager. I have two different interfaces, eth0 and eth1. Network manager has (as far as I can tell) correctly added this manual route: ~$ ip route ...
4
votes
1answer
2k views

chrt(): “failed to set pid XXX's policy” on one machine, but not others

I have several Linux machines, all of them running the same kernel (Ubuntu 12.04, 3.5.0-45-generic). On one of them, I am unable to use chrt at all. If I attempt to use it on a new process, I get the ...
4
votes
2answers
3k views

Install debug flash player in Chrome?

I am trying to adapt the instructions from here, here, and here to install the debug version of the flash player on my Ubuntu 13.04 installation such that Chrome 30.0.1599.66 can use it. ...
4
votes
3answers
5k views

Is it safe to resize partition on /?

I currently have a 600gb disk, with Ubuntu installed, 600gb of which is given to the Ubuntu OS: Filesystem Size Used Avail Use% Mounted on /dev/sda1 592G 16G 547G 3% / udev ...
4
votes
1answer
2k views

The volume “boot” has only 0 byte disk space remaining

I am in Ubuntu 10.04. When I install the software updates with "Update Manager", there is a pop up dialog which tells me "The volume "boot" has only 0 byte disk space remaining" How to get rid of ...
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 ...
3
votes
0answers
187 views

On what level is touch screen support implemented in Linux?

I'm trying to use a Linux OS on my tablet PC (Lenovo Thinkpad Helix 15). I tried Ubuntu, but except for switching and moving windows and bringing up the launcher, there doesn't seem to be a lot of ...
3
votes
1answer
896 views

Ubuntu / Mint brightness 0 by default on login

Every time I boot up Ubuntu or Mint, after choosing an OS from GRUB menu, before logging in, screen brightness is set to 0. What is the reason behind that? I always end up manually turning on the ...
3
votes
1answer
884 views

Compile the Ubuntu “Raring” Kernel with the Intel Compiler

Of course, the first question is: why I'm doing this. Just for fun! I'm learning more about Linux kernels and I have a virtual machine that I can replace in 15 minutes. Getting to business, I don't ...
3
votes
7answers
21k views

Black screen at boot with Mint and Ubuntu live CDs

I just bought an HP pavillion g6 laptop, with the hope of installing Linux on it. I have now tried both Linux Mint (my first choice) and Ubuntu, and both simply give me a black screen from the moment ...
2
votes
1answer
48 views

NFS Share broken?

I have an NFS share on a server that was working fine up until a few days ago. Me and my co-worker connect to the server with our machines, and share the data we are working on. All are running Ubuntu ...
2
votes
1answer
425 views

How to make this conky (Conky Vision) use other language than English?

I want to use this conky script: Conky Vision But I don't want the days of the week to be displayed in English. When I change my locale to another language, the day of today is displayed in that ...
2
votes
2answers
196 views

How can I alert on completion of a long task over ssh?

My desktop is Ubuntu, which has the handy program notify-send, which pops up an alert on the desktop. It also has the following handy alias built in: $ type alert alert is aliased to `notify-send ...
2
votes
1answer
651 views

nmcli freedesktop DBus warnings and errors

As soon as I do nmcli con up id <ESSID>, I experience some warnings/errors: ** (process:4841): WARNING **: async_got_type: could not read properties for ...
2
votes
1answer
1k views

How do I determine where DNS requests fail in the TCP stack?

I have the networking setup described here: Why is this static route not taking effect? Currently, I can ping my DNS server but all DNS requests fail: ~$ ping 130.35.249.52 PING 130.35.249.52 ...
2
votes
0answers
6k views

Touchpad not recognized on linux (ASUS R751LB)

I have just bought a brand new laptop. Unfortunately, touchpad doesn't work on any linux distribution (tried mint Ubuntu 12.04, Ubuntu 14.04, Mint 14, Mint 16, also Mint 16 with recent 3.13.5 kernel). ...
2
votes
2answers
2k views

How to know file system of any medium like hard disk, CD/DVD, flash drive? [duplicate]

Is there any command or any way to know what file system is there on a medium like hard disk or CD/DVD or flash drive etc. From GUI gparted one can know the type on hard disks/pen drive but not of ...
2
votes
1answer
7k views

How to properly automatically/manually rotate log files for production Rails App

I am taking over administration for a server which has a custom made 3rd party Rails app. The app developer informed me that the ruby log files are getting large and pointed me to the following link: ...
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
1answer
6k views

I need a step by step guide to build kernel modules in ChrUbuntu

I don't have experience building kernel modules. And worse, I'm trying to do it on ChrUbuntu, so it seems that I cannot follow the existing Ubuntu guides. For example, this command fails: # apt-get ...
2
votes
2answers
1k views

Can't do SSH public key login under encrypted home

I can't do ssh public key login to my server and I think this issue is related to the fact my home is encrypted. I chose the option "encrypt my home folder" under the Ubuntu install setup. The ...
2
votes
1answer
1k views

Lm-Sensors: Run specific commands when temperature goes above/below limits

I have a pretty badly ventilated computer whose temperature reaches 100º C in some occasions. The poor thing can't be ventilated any better ("put a bigger fan" is not a suitable solution). When the ...
2
votes
2answers
348 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 ...
2
votes
2answers
3k views

What do mkfs.xfs and modprobe do when mounting an Amazon EBS instance?

I'm looking through this guide for how to add an EBS volume to an Amazon EC2 instance, and I've found this little part of instructions hard to follow: Create an XFS file system on the EBS volume ...
2
votes
1answer
815 views

How to remove GNOME to run only Compiz

Regarding this question, I really like the idea of running Compiz without a desktop environment. I currently have Ubuntu 10.04 (with GNOME and Compiz) and want to give it a try. Now how can I ...
1
vote
2answers
414 views

Can Process id and session id of a daemon differ?

As far as I understood from different articles and here , a daemon has the following features: Parent Process ID should be 1. No terminal should be associated with the process. The process id, ...
1
vote
0answers
2k views

All USB ports detected as USB 1.0, not USB 2.0

My Ubuntu 13.10 server (Upgraded from 11.10) has always had an issue with mounting USB 2.0 devices. Despite legacy being turned off on the motherboard bios, the output of lsusb -t always shows the ...
1
vote
3answers
2k views

Make web project writable by apache and other user

I am running ubuntu 12.04 LTS . To be able to view my web project in the browser I did the following: chown -R www-data:www-data /var/www/project Now I wanted to open the project in netbeans but it ...
1
vote
2answers
4k views

Achieving full resolution with PowerVR SGX454 on Ubuntu 12.04

I have a Mini-PC with an ASRock AD2700B-ITX motherboard, which has an Intel PowerVR SGX545 on-board graphic chip. I installed Ubuntu 12.04 on it today. Everything is working properly and is quite ...
1
vote
2answers
3k views

What could cause network latency on a fresh Ubuntu Server 10.10 install?

I have recently purchased a machine to run an online game server. I put the machine together and have installed a fresh copy of Ubuntu Server 10.10. I have noticed that the game server produces a ...
0
votes
1answer
691 views

Desktop files disappeared mysteriously. Entire directory missing

My desktop files on Ubuntu disappeared mysteriously when I tried to drag and drop files to my pen drive. I tried all options available on stack exchange and elsewhere on the internet, like ...
0
votes
1answer
1k views

How to use one distro's live CD to install another distro?

I'm trying to install Mint Linux to a USB stick, but the Mint live CD doesn't fit on a normal CD and I don't have any DVDs available. The Ubuntu live CD does fit on a CD, so I want to use the Ubuntu ...
-1
votes
1answer
147 views

What is ~/.cache/weather.xml?

I use a clock-date-weather conky and I noticed that it is related to the file ~/.cache/weather.xml. I am curious: was this file created by conky or by what other program? Is it present on the system ...
10
votes
3answers
2k 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. ...
9
votes
4answers
10k views

How to truely install a tar.gz file on Linux - how to manage manually-installed (or standalone) applications?

I see all these links explaining packages and .debs... I know that... and there are many kludges to get tar.gz files working (eg: update-alternatives for Java or manually dropping the file in ...
7
votes
2answers
4k views

My .xsession and .xinitrc files are not executing

I have installed xmobar, xmonad on ubuntu 11.04. #!/bin/bash trayer --edge top --align right --SetDockType true --SetPartialStrut true \ --expand true --width 10 --transparent true --tint ...