Deprecated: Assigning the return value of new by reference is deprecated in /home/sites/chengfu.net/www/wp-includes/cache.php on line 36 Deprecated: Assigning the return value of new by reference is deprecated in /home/sites/chengfu.net/www/wp-includes/query.php on line 21 Deprecated: Assigning the return value of new by reference is deprecated in /home/sites/chengfu.net/www/wp-includes/theme.php on line 507 Deprecated: Function ereg() is deprecated in /home/sites/chengfu.net/www/wp-content/plugins/bad-behavior/functions.inc.php on line 62 Deprecated: Function ereg() is deprecated in /home/sites/chengfu.net/www/wp-content/plugins/bad-behavior/functions.inc.php on line 62 Deprecated: Function ereg() is deprecated in /home/sites/chengfu.net/www/wp-content/plugins/bad-behavior/functions.inc.php on line 62 Deprecated: Function ereg() is deprecated in /home/sites/chengfu.net/www/wp-content/plugins/bad-behavior/functions.inc.php on line 62 Deprecated: Function ereg() is deprecated in /home/sites/chengfu.net/www/wp-content/plugins/bad-behavior/functions.inc.php on line 62 Deprecated: Function ereg() is deprecated in /home/sites/chengfu.net/www/wp-content/plugins/bad-behavior/functions.inc.php on line 62 Deprecated: Function ereg() is deprecated in /home/sites/chengfu.net/www/wp-content/plugins/bad-behavior/functions.inc.php on line 62 Deprecated: Function ereg() is deprecated in /home/sites/chengfu.net/www/wp-content/plugins/bad-behavior/functions.inc.php on line 62 Deprecated: Function ereg() is deprecated in /home/sites/chengfu.net/www/wp-content/plugins/bad-behavior/functions.inc.php on line 62 Deprecated: Function ereg() is deprecated in /home/sites/chengfu.net/www/wp-content/plugins/bad-behavior/functions.inc.php on line 62 Deprecated: Function ereg() is deprecated in /home/sites/chengfu.net/www/wp-content/plugins/bad-behavior/functions.inc.php on line 62 Deprecated: Function ereg() is deprecated in /home/sites/chengfu.net/www/wp-content/plugins/bad-behavior/functions.inc.php on line 62 Deprecated: Function ereg() is deprecated in /home/sites/chengfu.net/www/wp-content/plugins/bad-behavior/functions.inc.php on line 62 Deprecated: Function ereg() is deprecated in /home/sites/chengfu.net/www/wp-content/plugins/bad-behavior/functions.inc.php on line 62 Deprecated: Function ereg() is deprecated in /home/sites/chengfu.net/www/wp-content/plugins/bad-behavior/functions.inc.php on line 62 Deprecated: Function ereg() is deprecated in /home/sites/chengfu.net/www/wp-content/plugins/bad-behavior/functions.inc.php on line 62 Deprecated: Function ereg() is deprecated in /home/sites/chengfu.net/www/wp-content/plugins/bad-behavior/functions.inc.php on line 62 Deprecated: Function ereg() is deprecated in /home/sites/chengfu.net/www/wp-content/plugins/bad-behavior/functions.inc.php on line 62 Deprecated: Function ereg() is deprecated in /home/sites/chengfu.net/www/wp-content/plugins/bad-behavior/functions.inc.php on line 62 Deprecated: Function ereg() is deprecated in /home/sites/chengfu.net/www/wp-content/plugins/bad-behavior/functions.inc.php on line 62 Deprecated: Function ereg() is deprecated in /home/sites/chengfu.net/www/wp-content/plugins/bad-behavior/functions.inc.php on line 62 Deprecated: Function ereg() is deprecated in /home/sites/chengfu.net/www/wp-content/plugins/bad-behavior/functions.inc.php on line 62 Deprecated: Function ereg() is deprecated in /home/sites/chengfu.net/www/wp-content/plugins/bad-behavior/functions.inc.php on line 62 Deprecated: Function ereg() is deprecated in /home/sites/chengfu.net/www/wp-content/plugins/bad-behavior/functions.inc.php on line 62 Deprecated: Function ereg() is deprecated in /home/sites/chengfu.net/www/wp-content/plugins/bad-behavior/functions.inc.php on line 62 Deprecated: Function ereg() is deprecated in /home/sites/chengfu.net/www/wp-content/plugins/bad-behavior/functions.inc.php on line 62 Deprecated: Function ereg() is deprecated in /home/sites/chengfu.net/www/wp-content/plugins/bad-behavior/functions.inc.php on line 62 Deprecated: Function ereg() is deprecated in /home/sites/chengfu.net/www/wp-content/plugins/bad-behavior/functions.inc.php on line 62 Deprecated: Function ereg() is deprecated in /home/sites/chengfu.net/www/wp-content/plugins/bad-behavior/functions.inc.php on line 62 Deprecated: Function ereg() is deprecated in /home/sites/chengfu.net/www/wp-content/plugins/bad-behavior/functions.inc.php on line 62 Deprecated: Function ereg() is deprecated in /home/sites/chengfu.net/www/wp-content/plugins/bad-behavior/functions.inc.php on line 62 Deprecated: Function ereg() is deprecated in /home/sites/chengfu.net/www/wp-content/plugins/bad-behavior/functions.inc.php on line 62 Deprecated: Function ereg() is deprecated in /home/sites/chengfu.net/www/wp-content/plugins/bad-behavior/functions.inc.php on line 62 Deprecated: Function ereg() is deprecated in /home/sites/chengfu.net/www/wp-content/plugins/bad-behavior/functions.inc.php on line 62 Deprecated: Function ereg() is deprecated in /home/sites/chengfu.net/www/wp-content/plugins/bad-behavior/functions.inc.php on line 62 Deprecated: Function ereg() is deprecated in /home/sites/chengfu.net/www/wp-content/plugins/bad-behavior/functions.inc.php on line 62 Deprecated: Function ereg() is deprecated in /home/sites/chengfu.net/www/wp-content/plugins/bad-behavior/functions.inc.php on line 62 Deprecated: Function ereg() is deprecated in /home/sites/chengfu.net/www/wp-content/plugins/bad-behavior/functions.inc.php on line 62 Deprecated: Function ereg() is deprecated in /home/sites/chengfu.net/www/wp-content/plugins/bad-behavior/functions.inc.php on line 62 Deprecated: Function ereg() is deprecated in /home/sites/chengfu.net/www/wp-content/plugins/bad-behavior/functions.inc.php on line 62 Warning: Cannot modify header information - headers already sent by (output started at /home/sites/chengfu.net/www/wp-content/plugins/bad-behavior/functions.inc.php:62) in /home/sites/chengfu.net/www/wp-content/plugins/bad-behavior/screener.inc.php on line 8 2006 » December » www.chengfu.net

December 2006


What is MetaTracker?

MetaTracker is a new desktop search for GNOME that is focussed on low memory-usage. It is implemented in C and claims to be faster and smaller than its C# counterpart beagle.

How to install MetaTracker on Gentoo

Currently MetaTracker 0.5.2 is available in portage but is masked and keyworded for x86. To install it anyway you have to disable the masking in /etc/portage/package.unmask by adding:

app-misc/tracker-0.5.2

After that tracker is still keyworded, so another line in /etc/portage/package.keywords is necessary:

=app-misc/tracker-0.5.2 ~x86

A fast run of emerge -pv app-misc/tracker will show that you will also need a keyworded version of exif, so add this line to /etc/portage/package.keywords, too:

=media-gfx/exif-0.6.9   ~x86

Now you may try to compile tracker again by running emerge app-misc/tracker. On my machine it failed with some errors in gstreamer-libs. Compiling with USE=-gstreamer emerge app-misc/tracker solved this.

Starting tracker the first time

Running the tracker search-tool will automagically start the tracker daemon in the background, but for the first run you will probably want to have a look at the debug output (at least I do).
To get debug-messages run trackerd –enable-debug -l en. If your primary language is not english you will want to use the ISO code for your language instead of “en”.
tracker should now start indexing your home directory and spill out a lot of debug messages.

Now take a second terminal and run tracker-search-tool to do a first text search.


After seeing Google Desktop Search on a windows machine some months ago I quickly installed beagle on my system and have since been updating to every new version as soon as it showd up in portage.
Beagle creates an index of all man pages, applications, mails, contacts and whatever is in my home directory. A quick search will reveal any file and beagle has been a great help during the last months.
The only problem with beagle is its memory consumption: with a complete index of my home directory and all mails beagle takes up at least 70 megabyte in memory and 1.4 gigabyte on the disk.

When searching for the newest beagle ebuild in the Gentoo bugtracker I found a request for tracker. Meta tracker is planned to be a small replacement for beagle that should take up only a few megs of ram. The screenshots on the tracker project page show a low memory usage of 4 megs, but the search window does not seem to be as clean as beagle’s. Right now tracker is still masked unstable in portage, but I’ll sure try to install it anyway during the weekend.

I just searched for a tool to join multiple tcpdump capture files as I’m experimenting with kismet (trying to break my own wpa key *g*). mergecap is an easy solution: mergecap -w out.dump 1.dump 2.dump merges both dump files into one outfile.
mergecap should be included in the wireshark package (formerly knows as ethereal).

Recently I bought a cheap webcam at Tchibo (a large retailer in Germany) in the hope that it would work on Linux. Last year right before christmas they offered a webcam for 12,99 Euro (17 USD) and it works fine under linux with the spca5xx driver. As the offer this year has just the same look and price I was hoping to get the same hardware. I didn’t. Last year the cam had a usb id of 0×093a:0×248, this year it is a newer model with the id 0×093a:0×2600 and this one is not supported.
Yesterday I tried the cam under windows doing some skype video conferencing and the picture was really good, so I wanted to get this thing running under linux even more. While I was already planning to buy a second one and donate it to the developers of the spca5xx oder gspca driver I found that Thomas Kaiser and some others are already working on a driver for the PAC7311 chipset quite succesfully (at least the jpeg stream has been decoded, in my understanding that seemed to be the main problem).

Thanks for the good work, I can’t wait to see the camera work with ekiga!

Just a few weeks ago gaia had to stop development because their reverse engineering of the Google Earth protocol violated some licenses of Googles data providers.
When I did my daily portage sync (package database update for those that don’t play Gentoo) I realised that gaia was back in the tree. A quick glance at the gaia project page show that they are continuing development as “gaia-clean” and without support for google imagery.

Technorati Tags: , , ,

« Previous PageNext Page »