Posts from 2010-04

Install Picasa (by Google)

http://wiki.ubuntuusers.de/picasa
http://picasa.google.com/intl/de/linux/download.html#picasa30
http://www.google.com/linuxrepositories/testrepo.html
http://www.google.com/linuxrepositories/apt.html

add the following entry to /etc/apt/sources.list

# Google software repository
deb http://dl.google.com/linux/deb/ stable non-free main

or if you want to access newer software use the following lines ( http://www.google.com/linuxrepositories/testrepo.html ) :

# Google repository
deb http://dl.google.com/linux/deb/ 

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Virtualbox – Installing the NonFree Version on Ubuntu

sudo add-apt-repository "deb http://download.virtualbox.org/virtualbox/debian lucid non-free"
wget -q http://download.virtualbox.org/virtualbox/debian/sun_vbox.asc -O- | sudo apt-key add -
apt-get update
apt-get install virtualbox-3.1

solve problems with package signature

when running sudo apt-get update I got the following error:

W: A error occurred during the signature verification

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HowTo generate secure passwords using pwgen

http://wiki.ubuntuusers.de/Shell/pwgen

sudo aptitude install pwgen

pwgen can generate safe passwords for you. It is a command line tool and can be used like this:

pwgen -s -y 8 1

-s means create a secure password, -y means it should contain at least one special character, 8 means it...

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digiKam

digiKam is a great software to manage your digital photographs. I like it especially because it does not depend that much on a database / proprietary ways to store information about the photos as it saves most information directly to the files.

sudo aptitude install digikam digikam-doc

To install...

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Ubuntu 10.04 lucid

set window operating buttons back to the right side

http://wiki.ubuntuusers.de/lucid_lynx#Design

gconftool-2 -s /apps/metacity/general/button_layout --type=string "menu:minimize,maximize,close"

upgrade problems on Samsung Q25

http://www.ubuntu.com/getubuntu/releasenotes/1004#Working%20around%20bugs%20in%20the%20new%20kernel%20video%20architecture

but seems to be rather this issue: http://www.ubuntu.com/getubuntu/releasenotes/1004#Intel%208xx%20X%20freezes/crashes

https://wiki.ubuntu.com/X/Bugs/Lucidi8xxFreezes

boot with the -vesa video driver

other choice: use a newer Intel Video driver 2.11git:

upgrade xserver-xorg-video-intel to 2.11git

http://ubuntuforums.org/showthread.php?t=1464239
https://launchpad.net/~glasen/+archive/intel-driver...

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Mount T-Online Mediencenter via WebDAV

This blog post describes how to mount the T-Online Mediencenter via WebDAV on Ubuntu Linux and on Windows 7 (64bit).

Resources

How To for Mac OS X

  1. Open Finder.
  2. Press [⌘]-[k].
  3. Connect to https://webdav.mediencenter.t-online.de
  4. Enter email address and password.

How To for Ubuntu Linux

First, install the required package davfs2:

sudo...

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Mount a GMail account as Filesystem using gmailfs

Warning: my experience with gmailfs was not excellent! It was a bit slow and you always risk to lose data you stored on that account.


based on IMAP: http://sr71.net/projects/gmailfs/
(it used to be http://richard.jones.name/google-hacks/gmail-filesystem/gmail-filesystem.html but this was based on the Webinterface and that changed often)

gmailfs works with FUSE....

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POV-Ray

http://wiki.ubuntuusers.de/POV-ray

installation of povray itself:

sudo aptitude install povray povray-includes povray-examples povray-doc

as well as the graphical modeler:

sudo aptitude install kpovmodeler

usage

A file created by POV-Ray: http://de.wikipedia.org/wiki/Datei:Mug_and_Torus_morph.gif
http://gist.github.com/376217

General command line to render a scene (still has to be adopted for the file in question):

povray...

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conglomerate - an xml editor

http://www.conglomerate.org/

sudo aptitude install conglomerate
...

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Install QlandkarteGT

https://launchpad.net/~mms-prodeia/+archive/ppa
http://www.prodeia.de/wordpress/category/software/

sudo add-apt-repository ppa:mms-prodeia/ppa
sudo aptitude update
sudo aptitude install qlandkartegt
...

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Apply a Lowpass Filter to an mp3 Audio File

A lowpass filter can be applied using the command line tool sox. It tool can be installed like this on Ubuntu:

sudo aptitude install pacpl sox

Convert the audiofile to wave first (using Perl Audio Converter as sox has no mp3 support compiled in on Ubuntu systems):

pacpl --to...

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Software for the GenBank database

http://www.ncbi.nlm.nih.gov/Genbank/
http://en.wikipedia.org/wiki/List_of_sequence_alignment_software

...

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Grub2: Permanently add `noapic` to the Boot Parameters

Edit the grub defaults file:

sudo gedit /etc/default/grub

and add noapic to GRUB_CMDLINE_LINUX_DEFAULT. Afterwards run sudo update-grub2 to recreate the list of boot entries (including the noapic option).

resources

...

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Advanced Usage of ethtool

There exist a comparison of ethtool in linux with the equivalents in solaris command-by-command... It's great!

not available anymore... but here is an archived version: https://web.archive.org/web/20120918092833/http://hub.opensolaris.org/bin/view/Project+brussels/ethtool-dladm-comparison

...

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Generate a Hardware Profile

http://www.tech-recipes.com/rx/2771/ubuntu_generate_hardware_profile_system/

sudo lshw -html > hardwareprofile.html
...

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Create an Image of a Copy Protected Audio CD Using readom

http://linux.die.net/man/1/readom
http://www.linuxquestions.org/questions/linux-newbie-8/how-do-i-dd-copy-protected-disc-784767/

use the option -clone!

readom dev=/dev/sr0 -clone f=audio-loops.iso
...

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Remove the 5% root quota of an ext2 / ext3 partition

Usually 5% of the storage of an ext2 or ext3 volume are reserved for the root user. You can use tune2fs to make that space available to other users!

tune2fs -m 0 /dev/sdb1

Only do this for non-system partitions (as you might need the "root quota" to recover from full...

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Set up a Samba Share for the KONICA MINOLTA magicolor 4690mf

This blog post documents the steps needed to set up a Samba Windows share on a Ubuntu based computer in order to let the Konica Minolta magicolor 4690mf scanner save scanned images directly to that folder.

Main resource: http://wiki.ubuntuusers.de/Samba_server (German)

sudo aptitude install samba-common samba

You might also install the...

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GMapCatcher - an Offline Maps Viewer

update 2011-03: Google Maps is no longer supported.

http://code.google.com/p/gmapcatcher/
GMapCatcher is an offline maps viewer. It downloads CloudMade, OpenStreetMap or Google Map tiles automatically, display them using a specific GUI. User can view the maps while offline.

get svn version

cd ~/Downloads
svn checkout http://gmapcatcher.googlecode.com/svn/trunk gmapcatcher

run

~/Downloads/gmapcatcher/maps.py
...

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Install your own Wikidot Wiki

http://www.wikidot.org/installation-guide

requirements

  • PostgreSQL 8.3
  • PHP 5.2+
  • Lighttpd 1.4 or 1.5
  • ImageMagick
  • LaTeX
  • PHP gd extension
  • PHP tidy extension
  • PEAR
  • file
  • git

To install all these:

sudo aptitude install postgresql-8.3 php5-cgi php5-cli php5-pgsql lighttpd imagemagick tetex-bin tetex-extra gs-gpl  php5-gd php5-tidy php-pear file git-core

Installation of Wikidot

http://www.wikidot.org/debian-packages

cd ~/Downloads
wget http://www.wikidot.org/local--files/debian-packages/wikidot_0.90_all.deb
sudo dpkg -i wikidot_0.90_all.deb

if it complains about missing packages...

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