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.

learn more… | top users | synonyms (1)

4
votes
2answers
3k views

rsync mkstemp failed Invalid argument (22) with davfs mount of Box.com cloud

I mounted Box.com cloud storage using davfs according to these instructions. I mounted my Box.com account under /home/me/Cloud/Box I can access the mounted filesystem via Dolphin as well as via the ...
2
votes
0answers
262 views

Please enter PIN (Ubuntu, Desktop, 3G Modem) turn off

Upon having booted to my Ubuntu on my notebook which has an internal dial-up device for 3G network, which I don't use anymore, Ubuntu asks for my PIN for the sim card. How can I disable this pin ...
1
vote
1answer
2k views

Extremely long time for an ext4 fsck

The problem that I am having is the extremely long time that fsck is taking. I have thoroughly made searches on Google, but I could not find anything that would resolve the problem. The command that ...
0
votes
1answer
100 views

Command “I'm” on linux ubuntu [closed]

I'm new at linux, ubuntu, and I did type I'm running and then like if it was a program or something else, I was allowed to write more... nothing else... I just want to know more about this command ...
1
vote
1answer
3k views

openssl-1.0.1e compiling on Debian

I am compiling OpenSSL-1.0.1e on Debian Lenny (armv4 architecture). I have been following the instruction on http://www.linuxfromscratch.org/blfs/view/svn/postlfs/openssl.html to compile the source ...
0
votes
0answers
5k views

Why Ubuntu 12.04LTS stopped at “could not write bytes : broken pipe”

When I update the system, and reboot the machine, it stopped at: "could not write bytes:broken pipe". I could not login into the system through the lightdm, but when I change to the gdm, it ...
1
vote
1answer
232 views

No wireless on my Dell Inspiron 1545 Ubuntu

I had installed Ubuntu 12.10 a few months back but never really used wireless device. I did use wireless before that when I had windows installed on my Dell, but then I switched to Ubuntu and the ...
4
votes
1answer
746 views

How can I tune Ubuntu for running from a flash drive?

I feel like this is a bit of a duplicate of this other question about making caching more aggressive, but I tried a lot of the suggestions there and I just can't figure out why I'm having trouble. My ...
2
votes
3answers
291 views

Hide all open windows on Ubuntu 12.04 LTS

Is it possible to have a button on the side bar to hide every open window on Ubuntu 12.04 LTS?
6
votes
3answers
4k views

How to get rid of the “scanning for btrfs file systems” at start-up?

After upgrading from Ubuntu 12.04 to Ubuntu 12.10, I get a message "scanning for btrfs file systems" at starting-up. I don't have any BTRFS filesystem. It delays the booting for about 15 seconds. How ...
2
votes
1answer
68 views

How can I be notified about state changes to a VPN adapter

On Ubuntu 12.04 - actually Kubuntu, but I am using NetworkManager, so the configuration should be the same - I have configured a few VPN connections. Now, if I have a long-running up- or download, ...
0
votes
1answer
165 views

Give a Root owned folder web read and write access

I have an Ubuntu server for a client I am working on, doing development work. I have root access and they created a new vhost blog.domain.com so when I log into it with WinSCP it list the files and ...
1
vote
1answer
93 views

How can I build fdupes from source on Ubuntu?

I would like to make a few changes to the fdupes code. I know I can grab the source code from the website - but is there a better way on Ubuntu / Debian? After getting the source this way where is ...
2
votes
1answer
1k views

asound.conf file is corrupted does not allow the play with the correct sound card as a result it keeps failing

I have this following asound.conf file, but when i play $ speaker-test it fails. How can you tell asound.conf that each and every time on restart of pc also use this sound card only? "card 2: PCH ...
0
votes
1answer
461 views

How to start a GUI program with PHP from website

My firm has some Ubuntu 12.04 running where there is no display attached and that are behind different firewalls. The visitor on local websites on that servers should be able to start a GUI program ...
9
votes
2answers
1k views

Can I unfreeze bash or vim when SSH session freezes from timeout? [duplicate]

When my SSH session times out, the whole terminal freezes. Is there any way to break out of that connection? CTRL+C doesn't cut it.
1
vote
3answers
87 views

How can I determine which commands are installed by default on Ubuntu, CentOS and Red Hat?

I was surprised to discover that curl didn't come bundled as part of Ubuntu. Is there a canonical list of included components Linux commands that I can check for these three operating systems?
1
vote
1answer
2k views

Is it safe to run everything from VirtualBox?

E.g. I install Ubuntu as my main system without anything else but VirtualBox and maybe some programs that need to be installed to run VirtualBox. Then I install within VirtualBox Windows 7 (because I ...
0
votes
2answers
193 views

Linux 'mail' command: Can't open display

I've just installed the 'mail' command in Ubuntu (mailutils package) in order to view feedback from cron jobs. I type 'mail' at the prompt and see something like this: "/var/mail/*$USER*": 1 message ...
1
vote
0answers
128 views

Ubuntu email: Wrong (and unexpected) postfix mapping

I am quite experienced with Linux but a beginner with email configuration and with postfix. On my desktop I have installed Ubuntu Linux 10.04 with package postfix 2.8.5-2~build0.10.04. I have ...
0
votes
0answers
351 views

vnc4Server Issue

I initially installed VNC4SERVER to run Guacamole (render VM through browser) on an AWS EC2 Linux (Ubuntu 12.04) instance. It worked fine and then I shutdown the instance. After a few days I started ...
0
votes
0answers
77 views

How to start a GUI program in a VM with PHP

I have an Ubuntu 12.04 VM running on my online server where there is no display attached. I want to start Teamviewer there on that VM to get graphical access to that server. I guess I have to give ...
1
vote
2answers
4k views

can't start x11vnc without attached monitor

I'd like to setup x11vnc (or any other vnc server) to start at boot-time. The display manager is kdm, the distribution is Ubuntu 12.04.2 LTS. When I try to start x11vnc, I'm getting this errors: $ ...
4
votes
1answer
384 views

Control cpu freq depending on ac/battery state

How can I make my linux system (ubuntu) automatically choose the performance governor when it works with ac and switch automatically to ondemand when it is on battery (and vice versa)? Is it also ...
0
votes
2answers
654 views

Install Win8 After Ubuntu

I've read that it's best to install win8 before linux. I already have Ubuntu set up with lots of goodies so I don't really want to re-install everything. Is it possible to install win8 now that I have ...
1
vote
0answers
82 views

multithread handling in AM1808 using embedded Linux

I am using AM1808 ARM9 based board using GCC compiler (UBUNTU 10.04) . I am using Sqlite3 database management. I have some requirement regarding handling threads in background having access on ...
2
votes
0answers
104 views

variable name lost when tab completing to export an environment variable with a path

I'm trying to setup an environment variable using tab completion, e.g. snowch$ export JAVA_HOME=/usr/lib/jvm/java-6-oracle/ I used to be able to tab complete the folders after typing the export ...
6
votes
3answers
351 views

How does bash know how it is being invoked?

I've installed jailkit on Ubuntu 12.04 and I have set up a user's shell to /bin/bash - but when it is invoked it runs /etc/bash.bashrc instead of /etc/profile If you haven't used jailkit before ...
0
votes
1answer
2k views

Courier IMAP cannot find my Maildir but can find root's Maildir

I'm running into a weird issue setting up Postfix and Courier IMAP on a clean Ubuntu 13.04 install. I'm using this tutorial, and am currently Testing Courier IMAP. When I try to login with root, ...
2
votes
1answer
3k views

Ubuntu server cannot access the Internet: appears DNS related

This is a Drupal website running Ubuntu 12.04 LTS on Linode. The server is just a website. It is not a DNS server or anything else. Here are my issues. It seems they are all related to DNS issues. ...
2
votes
1answer
743 views

iptables rules too restrictive; Drupal webserver cannot access repositories, ntp or even websites

This is a Drupal website running Ubuntu 12.04 LTS on Linode. Someone recently changed our iptables rules and a number of problems started. These include: Our Mollom spam protection is not working ...
1
vote
1answer
301 views

What are the right settings for Ubuntu Touch under qemu?

As you can see here, Canonical is releasing the images for Ubuntu touch, the problem is that apparently those are snapshots from a complete installation, there is no installer here and no vmlinuz + ...
1
vote
2answers
683 views

How do I kill 'repo sync' using crontab given it spawns many processes?

I need to 'repo sync' the Android source overnight, as my monthly bandwidth is limited. , I start the 'repo sync' at midnight, then want to kill it at 8am. The following is the command: 2 0 * * * ...
1
vote
1answer
73 views

Specifying a dependency of a version greater than N and less than M

Is it possible to specify the dependency of another library that is within a specific range of versions? Like: Depends: Lib (<= 4) -- dependency of a library that has version less or equal to 4 ...
3
votes
2answers
95 views

Vim global search in a project

I started using vim two weeks ago switching from sublime and I am a ruby developer I know for a fact that Ack and Ag work very good on a Mac while they're not optimized for my Ubuntu machine. These ...
1
vote
0answers
72 views

Themed Tabs in Gnome Terminal

I've created a custom desktop session which upon login presents the user with a full screen gnome-terminal session. The idea is to have a TTY-like session but with the added advantages provided by X ...
0
votes
1answer
89 views

Why does exec file generate 4 processes in Linux? [closed]

I build my RTAI-model-source(generated by simulink) in CygWin with gcc-linux-4.1 (cross-compiler of CygWin) on Windows, and generate ELF successfully. and the ELF runs correctly on Ubuntu. After the ...
1
vote
0answers
60 views

add audio from playing file to microphone stream

I need to add a sound to what the microphone is capturing, is it possible? I started with man aplay and found that I can do aplay -D PCMdevice filepath.wav so then I listed the PCM devices with ...
1
vote
1answer
126 views

How to prevent the termination of Anacron jobs after battery mode commences?

I have a backup script which is run daily by Anacron. It can take around 3 hours to complete. I'm happy for Anacron not to commence the script if the laptop is running on batteries, but once started, ...
3
votes
1answer
2k views

Point USB phone to specific /dev/ttyACM using udev

We have a Nagios + check_mk setup on Ubuntu 12.04 LTS server with smstools for sending text message notifications. We are using an old Nokia 6230 phone connected by a USB cable, though I do not ...
2
votes
2answers
646 views

How to disable wlan0 when shutdown

Since a long time ago my Sony Vaio with Lubuntu 11.10 is showing a red FAIL message during the shutdown process. It tries to kill some process and the white messages on the screen frozen for some ...
5
votes
4answers
1k views

Tmux xclip copy no longer working

On mu ubuntu 12.04 setups my tmux clipboard copy and paste commands are setup as follows: set -g prefix M-a unbind C-b bind C-c run "tmux save-buffer - | xclip -i -sel clipboard" bind C-v run "tmux ...
0
votes
1answer
42 views

Disconnect a disk correctly

I wanna disconnect a disk from an array which is the correct process umount file system remove from volume group i dont know this step disconnect physically the disk
1
vote
1answer
45 views

Is it a good practice to use svn for two different applications but on the same server?

Is it a good practice to use SVN for two different applications but on the same server ? I'm asking this because, whenever I update one of the application with svn it does not ask for password ...
3
votes
1answer
5k views

How can I set up a usb printer as a network printer using a linux server?

Basically right now I have a USB only printer, it's very nice. There are 5 people in my household and we all are constantly wanting to use the printer. Windows has a built in way to share the ...
3
votes
1answer
534 views

BCache and disk encryption

I recently bought a new laptop with a 16Gb mSATA SSD cache drive. I haven't used that one yet. I have, however, opted for Ubuntu 13.04 with "Full Disk Encryption" for the main partition (is that ...
4
votes
1answer
772 views

Fedora 18 guest in VirtualBox 4.2: How to assign static IPv4 address to guest regardless of active ethernet interface on host

I have a Ubuntu 13.04 host running VirtualBox 4.2.12. This host has both a wired and a wireless network interface, but only one of which would usually be active at any given time. For example, at home ...
3
votes
1answer
691 views

Alt+tab key not working in NX client for linux

I am using NX clinet-3.5.0-7 version running on ubuntu 12.04. I am trying to use Alt+Tab key to switch between different terminals on my NX client but I am unable to do so. When ever I use Alt+Tab, it ...
1
vote
2answers
311 views

SSH agent loses keys after logging out

I added my SSH key having typed ssh-add ~/.ssh/id_rsa and ssh-add -l printed my key. But after logging out and logging in again I see The agent has no identities. I've tried setting a very ...
1
vote
2answers
6k views

Unable to set hostname for use within network

I am having a lot of trouble setting up a hostname for my home server for use within my home network. My home server is running Ubuntu 12.04 LTS and all packages are up to date. Management of this ...