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)

0
votes
1answer
2k views

How can I set the TTY font size manually in Lubuntu? [duplicate]

I'm configuring some minimal Lubuntu installs, which will run within VMs. They do not have window managers, and I do not intend to install any. I would like to increase the TTY font size so that 4 of ...
0
votes
1answer
2k views

Add Ubuntu to Arch linux Dual boot, Keeping Syslinux, without GRUB

Situation I have Arch Linux installed on /dev/sda1 (15GB/ext4). / and /boot are both on /dev/sda1 and /home is on /dev/sda2 (100GB/ext4). I made a 15GB/ext4 /dev/sda3 partition for Ubuntu. I ...
1
vote
1answer
14k views

vsftpd: 550 Failed to change directory

I'm using ubuntu 12.04. and ftp service I've installed vsftpd and it's working fine. But may I'm facing some user complexity. My system directory like: -/ --/home ----/rony --/vol When I list ...
1
vote
1answer
1k views

How to fail prerm script and preinst script with error message in Debian package

I structured my debian package in following way preinst script which displays EULA to user and ask for choice 'y' or 'n'. postinst script which install the package and updates the initrd image. ...
1
vote
0answers
172 views

How to stop application windows from shifting to workspace one after attaching dual monitor?

I'm using Unity on Ubuntu 13.04. I use arandr to configure my dual monitor setup. The problem is as soon as I apply my settings, the display resets and all application windows, which I had tediously ...
0
votes
2answers
122 views

Learning Ubuntu - Testing on Mac OS 10.7?

I'm a beginner in learning Linux. I know that there are many different distributions of Linux including Ubuntu. I consider Mac OS as a distribution of Linux, is that right? My goal in learning Linux ...
-1
votes
2answers
3k views

How can I print unique line base on particular column value using awk? [closed]

I have a comma separated file with multiple fields. Example: candidate1,12,56,ATTG candidate2,45,90,ATTG candidate3,90,140,ATTG candidate4,2,36,AGCT So, does anyone know the answer?
2
votes
1answer
284 views

Dropbox, notify-send and OSD interfere with Ctrl-shortcuts

I'm using Ubuntu 13.04 with i3 4.5.1. When i3wm starts, Ctrl-C/-D/-K etc. are working fine. When I start Dropbox, notify-send or change the volume, all Ctrl-something shortcuts stop working. I can ...
2
votes
0answers
75 views

How to use Gnome's extensions

I have been trying to install some Gnome extensions from the site https://extensions.gnome.org. I get the dialogue asking if I want to install, but after I select yes, it fails silently. This is the ...
0
votes
1answer
865 views

Ubuntu 13.04 seems to randomly crash

I'm using an x64 distro of Ubuntu 13.04 on a Dell inspiron 1464, but it keeps crashing for no apparent reason. Took some pictures of the error screen (first picture is of one instance, the rest are ...
2
votes
3answers
336 views

Automated mounting for usb drives in linux

I have a five 4TB usb drives. I want to setup a mount point, /mnt/backups so that when I plug in any of those drives, they get automatically mounted to /mnt/backups. The problem is that when the ...
1
vote
1answer
232 views

Unable to install open CV in Ubuntu 12.04

I am trying to install openCv for learning purpose and then using it for OCR(Optical Character Recognition) but i am unable to install it in Ubuntu 12.04 I am following this link and able to carry ...
0
votes
0answers
294 views

Ubuntu change language encoding for file uploading

Previously we were running a Wordpress site on a Mac OS Server machine. We had several hundred images with Chinese characters for the image names. Now we're trying to migrate to a Ubuntu system and ...
2
votes
0answers
1k views

Why does resume from hibernation pause/hang?

I used suspend (to ram) for a long time, and it worked flawlessly. Recently, I started using hibernate (to disk) - not-quite-flawlessly. Hibernate-to-disk works (from the terminal, so far - as ...
3
votes
1answer
897 views

How can I figure out which pty's are from which qemu?

I'm running qemu's like this: $ sudo qemu -boot d -m 1024 \ -netdev tap,id=tap0 \ -device virtio-net-pci,netdev=tap0,id=vth0 \ -drive file=ubuntu.iso,media=cdrom,cache=none,if=ide \ -monitor pty \ ...
3
votes
1answer
467 views

Open luks-encrypted partition from virtual DomU LVM disk containing another LVM

I've gotten myself in a bit of a bind, here. A while ago I set up an encrypted Unbuntu 13.04 under Xen. It's virtual disk is an LVM LV. This LV was presented to the DomU as a (whole) physical disk ...
0
votes
1answer
114 views

Problem with wifi in Ubuntu

I'm not able to see (or access) my WiFi in Ubuntu. tharcisyo@tssd:~$ iwlist scan eth0 Interface doesn't support scanning. lo Interface doesn't support scanning. wlan0 Failed to read ...
2
votes
4answers
392 views

Why is the available space in my $HOME decreasing?

My OS is Ubuntu 12.04. As System Monitor shows, "free" for my $HOME is 1.6GiB, but "Available" is 222.7 MiB and is keeping slowly decreasing from around 750 MiB yesterday. I am not aware that I am ...
0
votes
0answers
392 views

What is the difference between RGB and YCbCr?

In my Linux Mint ATI Catalyst setup I have set YCbCr as default for Color Pixel Format? What is the difference? I subjectively think that RGB (Full RGB) is better for my eyes. YCbCr seems to be ...
0
votes
1answer
223 views

Do all distrbutions have the same drivers for ATI cards?

The problem is that my fan is too loud and working nonstop on my desktop. I have tried so far: Ubuntu 13.04, Linux Mint 15 and I had in both the same fan problem (nonstop working fan and very ...
0
votes
3answers
413 views

Change terminal prompt Ubuntu

I have cloned a git repository to a folder in my workspace: /home/jose/workspace/very-very-very-long-repository-name/ so when i browse to it in my terminal it looks like ...
-1
votes
1answer
4k views

Equivalent of these commands in the following distros [closed]

These commands: dpkg -i apt-get install apt-get update apt-get remove apt-get dist-upgrade apt-get purge in these distros: Opensuse, Fedora, Gentoo, Arch, Slackware.
1
vote
1answer
4k views

Ubuntu / Unity attach script to Launcher

I recently downloaded IntelliJ IDEA and start the app by running . idea.sh. The app appears in the launcher while I'm running it, but for some reason when I right click on it I don't get a 'Lock to ...
3
votes
4answers
3k views

Crontab not working

I'm trying execute a basic shutdown crontab to run M-F at 10PM. So I did the following: sudo crontab -e Once inside of the crontab I added the following line: 0 22 * * 1-5 shutdown now The job ...
2
votes
0answers
1k views

Rotating a video (ubuntu 12.04)

I have a video, shot on my android phone, which I want to rotate 90 degrees clockwise for computer viewing. Here's what I expect should work: ffmpeg -i infile.mp4 -vf "transpose=1" -an -vcodec mpeg4 ...
1
vote
1answer
109 views

Nvidia driver for Debian

Is there a "real solution" or driver for Nvidia Optimus graphic cards? I tested a lot of alternatives but no success. I know a lot of users face the same problem with Debian or Ubuntu-family. This ...
1
vote
3answers
776 views

How compatible is Centos in respect to hardware for desktop systems?

I have been tasked with creating a promotional/sales tool for our clients and sales people . (about 8400 users) It is expected that the tool will be used on office and home systems. The tool will ...
2
votes
0answers
384 views

Can't connect unsecured wifi from Wicd or terminal

I can connect without issue to WPA networks, but if I am somewhere like a hotel and try to connect to an unsecured WiFi, things hang at the DHCP part and I don't get an IP assigned. I'm running ...
2
votes
3answers
7k views

How do I get my wireless USB mouse working

My wireless USB mouse is not plugging and playing. This is my first time using linux (Ubuntu 12.04) and I'm trying to get a development environment going to learn to use the shell, Python, and other ...
2
votes
3answers
642 views

denyhosts is blocking existing users from logging in from unknown (new) IP addresses

I have denyhosts set up and working on Ubuntu 12.04. It apparently works well, except it is too strict. I can log in from any IP address that I have added to hosts.allow in advance. My sshd_config ...
1
vote
1answer
5k views

NTP not syncing in a VM

I'm managing some VirtualBox developer environments. The time drifts out of sync when the box is suspended, so I want to use NTP to keep it in sync. NTP doesn't seem to be doing its job, though - the ...
2
votes
3answers
1k views

Fastest way to convert a large amount of FLACs to MP3s

I'm looking for something that can take advantage of my GPU or at the very least, multiple cores of my CPU to convert a few terabytes of FLAC to mp3 (VBR v0) very quickly while preserving all of the ...
2
votes
1answer
727 views

tun0 enabling after installing openvpn

I just installed openvpn but can't see tun0 when I do ifconfig. when I ssh to a remote server, I get the error: debug1: Authentications that can continue: publickey,password How can I enable it? ...
11
votes
3answers
25k views

Ubuntu 12.04 hotspot wifi network not visible to Android 4.1.2

I'm running Ubuntu 12.04 LTS on my notebook, and I've got a Motorola Razr which I updated to Android 4.1.2. Before updating, I connected my smartphone to my hotspot wifi very quickly, but after the ...
0
votes
0answers
119 views

nginx should not handle unicorn's request

I have a server on which I have configured Nginx and Unicorn, where Unicorn servers static pages. In my case I'm writing a rewrite rule in Nginx that, if a request comes to mydomain.com it should ...
1
vote
3answers
958 views

Directory appears as file?

So we copied some photos in a directory across to a NTFS partition last night, and they were viewable from ubuntu. Today the directory is not accessible from Windows, and when we booted back into ...
2
votes
1answer
3k views

“PS/2 Generic Mouse” gets lost. How to reload without reboot?

I am running Ubuntu 12.04LTS on a ThinkPad E420s. My Trackpoint is recognized as "PS/2 Generic Mouse". My problem is that it doesn't load/disappears after booting or after suspension. I can't move ...
1
vote
1answer
122 views

Cron job doesn't seem to be executing in ubuntu

I have a script located /myscript/script.sh and I have a cronjob that I submitted like this: sudo crontab -e The contents of the crontab are as follows: */1 * * * * ./myscript/script.sh The ...
3
votes
1answer
454 views

Is it possible to configure applications to use different network interfaces differently? If yes, how?

I am running scrapy on ubuntu server 13. And while it is crawling the network becomes very slow and it becomes difficult to even ssh into the system. I think I can solve the problem by having one ...
1
vote
2answers
929 views

Why is my shell script hanging on `apt-get -y upgrade`?

Ubuntu : sudo DEBIAN_FRONTEND=noninteractive apt-get -y update sudo DEBIAN_FRONTEND=noninteractive apt-get -y upgrade sudo reboot Script is always interrupted after upgrade and then it will stay on ...
0
votes
1answer
128 views

executable lies about own existence [duplicate]

Okay, I'm completely baffled on this one. I'm installing a piece of software called InterPro Scan for my superiors, and it is complaining about an executable not existing. Please see below. ...
2
votes
1answer
3k views

Font letter spacing issue with PhantomJS/wkhtmltopdf on Ubuntu

I'm using PhantomJS/wkhtmltopdf on Ubuntu 12.04 LTS to convert HTML to PDF and get very strange letter spacing errors. For instance, the internal distance between es and xa seems very random and ...
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 ...
3
votes
1answer
948 views

Procmail: Denying special privileges for “/etc/procmailrcs/default.rc”

I'm trying to setup postfix, dovecot and procmail to work together with virtual users. In the end I want to have virtual users and the possibility to add rules to sort incoming rules. For the last ...
1
vote
2answers
300 views

adding additional tracks using sox and the command line

I'm trying to add additional tracks using sox using the command line Example: I have several different stereo tracks a drum track, vocal track, effects track, etc. Can I add additional stereo tracks ...
0
votes
1answer
290 views

Find used drivers for printer

My printer CANON PIXMA MP170 (usb) doesn't work on Debian 7 amd64 but does work on my Ubuntu 12.04 i386. I've tried a lot of tutorial about this but no success. So for now I'd like to to know more ...
1
vote
0answers
154 views

GPU not listed in lspci after SysRQ reboot

I have my Ubuntu Server machine with XFX 7970 GPU in it, and sometimes, when ATI driver fails, I have to reboot it manually. When I'm trying to reboot the machine using SysRQ, the system reboots ...
1
vote
1answer
125 views

How can I view foreign languages in Chromium?

I just installed the minimal version of Ubuntu. (To be specific, I installed Ubuntu 12.04 "Precise Pangolin" 32-bit.) This version does not have all the tools that are usually avaialble in normal ...
4
votes
2answers
505 views

Getting wmctrl to work with multiple Emacs windows

I'm trying to write a script that switches focus to Emacs. This is what I have: #!/bin/bash wmctrl -a 'emacs@pat-ubuntu-desktop' It works fine when there is only one Emacs window (or "frame," in ...
0
votes
2answers
7k views

SSH tunneling: connect_to localhost port 22: failed

I want to connect from my computer to a remote computer using a middle server(u port forwarding). I run this command on remote computer: ssh -R 9300:localhost:22 user@middleserver and this one on ...