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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explanation of the output's command “ifconfig ppp0”

I'm trying to understand the meaning the output of the command: ifconfig ppp0 Note that I'm using an internet-usb-board and so I'm sure that ppp0 interface is associated to it. In particular I have ...
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2answers
164 views

Ubunutu software-centre is not working, showing black screen

I am trying to open ubuntu software-center but it get paused and after that shows complete black and nothing is happening. Same thing has happened when I try to run from command line. This is the ...
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2answers
376 views

shutdown ubuntu server after 2 days at midnight

without using a cronjob how would I have a ubuntu server shutdown after 2 days (2880 minutes) at midnight? The essence of what I want to do is this: bash shutdown -r +2880 00:00 which would tell ...
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0answers
634 views

badblocks and “end_request: I/O error” in output

I have 500GB disk in my toshiba laptop, I tried to do backup of files in this HDD but it failed few times (ubuntu just closed copying operation or unmounted disk during copying files). So I boot my ...
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4answers
5k views

How can I upgrade pip on Ubuntu 10.04?

On Ubuntu 10.04 I've used apt-get install pip to install pip after which I installed django. Then I tried to uninstall django with pip via pip uninstall django which gives me: pip: error: No command ...
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1answer
83 views

Why do I need to add a GPG-key with apt-key before adding URL to sources.list and download-installing an application with apt-get?

I went on to download an application today. It had it's instructions listed, step by step, number one being: adding a GPG-key with apt-key. It was followed by adding the application to apt/sources and ...
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2answers
1k views

apache not starting in vagrant vm

I used Puphpet.com to create a Vagrant VM to be used for web development. The problem I am having is that the VM cannot start apache on boot. $ sudo /etc/init.d/apache2 start * Starting web server ...
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3answers
2k views

Is Ubuntu LTS binary compatible with Debian?

RedHat and CentOS are binary compatible. So everything that works on the one will most propably work on the other (same RPMs, same libs, same versions, same dependencies)... Does the same hold true ...
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2answers
716 views

GNU Radio prerequisite libraries on armhf

After several attempts, I have managed to compile GNURadio on the Raspberry Pi. However, I am just not able to meet the prerequisites for the gnuradio build script on the Pandaboard (Linaro 12.04) or ...
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0answers
283 views

not able to run vsftpd by executing the binary file as ./vsftpd

To configure vsftpd for virtual users, I followed this link. Though I succeeded in making the virtual users log into the system but it didn't work exactly the way mentioned in the document I ...
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172 views

vsftpd for virtual users: login directory isn't world readable. Then what's the use?

To configure vsftpd for virtual users, I followed this link. Though I succeeded in making the virtual users log into the system but it didn't work exactly the way mentioned in the document I ...
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1answer
505 views

Passing in parameters to Upstart

I can do mongod -f /etc/mongodb.conf How do I achieve the same effect when starting mongodb as a service? ie sudo service start mongodb By default this does not read from the config file. I ...
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127 views

Is it possible to import vmail folder from old iRedMail to new iRedMail installation?

Basically, what I did: Copied vmail folder to my local machine. Reinstalled my VPS. Installed iRedMail again. Created same users on the same domain. Question is - can I somehow copy over my old ...
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3answers
429 views

Need small distro without a desktop or windows manager, just to run a single graphical app [duplicate]

I am looking for some help on this from a linux expert. I am very novice when it comes to linux so I am hoping someone can help out. I need a small distro, that is stable. I don't need a full X ...
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1answer
917 views

Linux - File change time versus modification time

I'm using Ubuntu 12.04, though I'd imagine this question spans all Linux variants. In the manpage for the stat command, there are two (four) formatting options that appear to mean the same thing: ...
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1answer
114 views

Yarbu Execution

I am attempting to use a Project called Yarbu It appears to be exactly what I am looking for. However I am a noob at Linux and am having difficulty getting it to work. I successfully completed the ...
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1answer
246 views

Ubuntu Server - OS on single HDD, file server on software RAID 1

I run a Windows Server 2008 machine. It is used as a file server (File Services feature), in addition to local shares I use CrushFTP for SFTP and HTTP access to my files. I would like to convert to ...
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290 views

Ubuntu warning. W: Duplicate sources.list entry

After installing Oracle VirtualBox, when I do sudo apt-get update, I get the following warning W: Duplicate sources.list entry http://download.virtualbox.org/virtualbox/debian/ raring/contrib i386 ...
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3answers
65 views

Can I install other distro and use /home from previous one?

Pretty much it. I want to install CrunchBang, and I have been using Ubuntu 12.10. Should I format /home, or do I need to only format / and install #! there?
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1answer
146 views

Unable to update my system Ubuntu13.04: Getting message - requires installation of untrusted packages

I had been trying to update my Ubuntu13.04 via 'software updater'. The updater messages that the following needs to be installed. Press continue to install When I press continue , a window appears as ...
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2answers
262 views

How do I execute a command on login for a system user with no home folder and no personal .bashrc file?

I set these users' home folders through the /etc/passwd file, but when they log in I would like them to activate a python virtualenv. If they had a personal .bashrc file, I'd just include the activate ...
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1answer
130 views

Nautilus Renaming Bug when pressing 'n' key in Ubuntu

I have what i can consider a Big Bug on Nautilus under Ubuntu Linux. When I am in the process of renaming a file or a folder, if I press n, nautilus opens a new tab. The effect is: I cannot include ...
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1answer
74 views

Why does a manual mount set different file ownership?

I've been using the terminal for almost everything: in fact, I often don't even log in through the interface, I use the tty1 and go to the web with text-browsers. So, the external drive doesn't ...
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298 views

libcurl4-gnutls-dev : Depends: libldap2-dev but it is not going to be installed

I am trying to install curl in my ubuntu server as I was getting this error whenever I am compiling my C++ code - fatal error: curl.h: No such file or directory Below is the error: ...
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2answers
4k views

How to check whether certain port is opened or block on any other servers from a dev box?

I am trying to connect to one of our staging Cassandra servers on port 9042 and 9160 here in our company from a dev box.. Through the code, I am not able to connect to it... The program gets hanged at ...
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2answers
254 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 ...
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1answer
586 views

Overwritten MBR: Is partial/complete recovery possible?

I have a Sony VIAO laptop setup as dual boot (Ubuntu 12.10/Windows 7). Since I wanted to try Archlinux, I installed VirtualBox in Ubuntu. To create a bootable USB stick (from the ISO image on my hard ...
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78 views

How to install Ubuntu in a netbook, but keeping the original win7 installation in storage

I have a Samsung N210 netbook. It has windows 7, starter edition. I´ve tried the latest Ubuntu version using a pendrive and loved it so far. I would like to install it in my netbook, but I would ...
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2answers
2k views

How to download latest version of cmake?

I have installed cmake like this - sudo apt-get install cmake But whenever I try to compile my c++ code.. I always get the below error - CMake Error at CMakeLists.txt:2 (cmake_minimum_required): ...
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92 views

Local servers (behind NAT) on vpn with email servers and sync with a central email server open to internet

What I have I have a number of Linux (Ubuntu) servers (20 as of now but may grow over time to hundreds) connected to each other via private VPN (OpenVPN) which serve intranet web application (Apache ...
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1answer
254 views

Can't sudo after lock password, can I recover from that?

After setup ubuntu with default settings, It allows user to login with password, so I use passwd -l [username] to forbid password login both in ssh and console. But when I use sudo to execute ...
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1answer
136 views

/usr/bin/cmake: is a directory. Not able to grab the version of cmake?

I just have installed CMAKE in my ubuntu machine.. So when I do whereis cmake, it gives me the actual path username@phx7b02c-ee1b:~/CMAKE/cmake-2.8.11$ whereis cmake cmake: /usr/bin/cmake But ...
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1answer
131 views

Scrambled Xen Console on dom0

I installed Xen using the recommended procedure on Ubuntu's site using motherboard Supermicro X7SBL-LN2 and Ubuntu 13.04 amd64. After the installing it and rebooting my console looks like this: ...
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1answer
2k views

How to install persistent ubuntu 12.04 on USB drive?

I spent an entire day trying to figure out why my USB ubuntu installation was not being persistent. Yes, I did check the "persistence" option and assigned a file size for it during installation. I've ...
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2answers
484 views

why can't linux see my run.sh command?

I have a run.sh in a directory in ubuntu linux 12.04 LTS. I've been changing the Path variable so that it can "see" binaries elsewhere in the directory structure. But I am still getting a command not ...
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3answers
3k views

Using cygwin and rsync — “password file must not be other-accessible”

I've finally got an old computer of mine running as a backup server with Ubuntu 11.10. I'm planning on using it to backup my Windows 7 machine weekly using rsync. I've got cygwin installed, and rsync ...
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1answer
146 views

Accessing Pendrive in Ubuntu using Wine

We use ubuntu in our college and they have blocked pendrive access. When we insert pendrive it displays a dialog that says "There is no application to handle this file" (or something like that). So, ...
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1answer
308 views

service vs. initctl in Ubuntu

Why are some deamons run out of service and some out of initctl in Ubuntu? Do both tools do the same thing and it is just a matter of personal preference of the user what they will use? E.g. sudo ...
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1answer
2k views

How to install squashfs-tools on Ubuntu?

I tried running `unsquashfs and got: $ unsquashfs filesystem.squashfs The program 'unsquashfs' is currently not installed, You can install it by typing: So I went to install it: $ sudo apt-get ...
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0answers
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UBUNTU + extract filesystem.squashfs for editing [duplicate]

please advice how to install the squashfs-tools on UBUNTU linux ? I try this unsquashfs filesystem.squashfs The program 'unsquashfs' is currently not installed, You can install it by typing: ...
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1answer
58 views

Is there a way to get apt-get to install from different distributions in one single command?

I'm building a package from source in Debian Wheezy, which has a few build-deps that cannot be satisfied by stable. Therefore, I use a few packages from unstable, testing and wheezy-backports. The ...
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1answer
5k views

How to adjust charging thresholds of laptop battery?

My laptop is Lenovo T400, and OS is Ubuntu 12.04. I have not been able to adjust the thresholds for battery starting charging and stopping charging. I observed that its current starting charging ...
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2answers
493 views

Writing to /tmp is failing - returning error 22

I'm getting this weird behaviour where writing to /tmp is failing. Even try touch /tmp/foo as root fails with OS error code 22: Invalid argument. The permissions are set to 1777/drwxrwxrwt.
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2answers
336 views

Crunchbang does not see existing Ubuntu installation

I recently installed Crunchbang 11 in the free space of a hard disk of an Asus netbook that already had Ubuntu installed on it. I partitioned the 2 distros separately, with only a common swap space. ...
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3answers
2k views

Recommend distribution for Graphic Design

I'm new here. I need for a Linux Distribution for my girlfriend, to install on her computer (in a VM, to be more exactly). She studies Graphic Design, and she use to work on Windows XP, but she got ...
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1answer
148 views

Setting up server to share music with tv

Can someone please point me in the right direction? Hopefully first by letting me know if this is possible... I recently purchased a home theater system which you plug via hdmi into the tv. It has ...
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3answers
1k views

Curl with ipv6 not working by default

I am trying to curl ipv6 addresses, but without success. If I try lets say: curl https://google.com I wait for a timeout and get network unreachable If I force ipv4, everything is fine. ...
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2answers
61 views

Ubuntu 12.04: updating package message

When ever I updated packages, (they update) I receive the following message about TeXLive: dpkg: warning: parsing file '/var/lib/dpkg/status' near line 2888 package 'texlive-local': missing ...
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1answer
331 views

Not able to ftp remote server anonymously

I was not able to ftp to my remote server. I read Ubuntu doc to see how to resolve: https://help.ubuntu.com/10.04/serverguide/ftp-server.html Just now I installed vsftpd on my remote machine. Now ...
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1answer
58 views

Transfer Ubuntu server 10.04 to another 13.04 [closed]

I am totally new to Linux administration and now I have big problem. I have old server with some sites, databases, programs etc that is Ubuntu 10.04. Because of too much users I rented new better and ...