Russell Coker: Links July 2010
David Byrne gave an interesting TED talk about how changes to architecture drove changes to musical styles [1]. I think he does stretch the point a little. To a certain extent people develop the most complex instruments and the largest music halls that can be supported by the level of technology in their society people with a hunter-gatherer civilisation play drums because they can build them and can carry them.
The NY Times has an interesting article about paternity leave in Sweden [2]. The Swedish government pays for a total of 13 months leave that can be split between parents for every child. Of those 13 months 2 months can only be taken by the father and that is likely to increase to a minimum of 4 months of paternity leave after the next election.
Dan Meyer gave an interesting TEDX talk about how the current math curriculum in the US (as well as Australia and lots of other countries that do the same thing) is totally wrong [3]. His main point is that maths problems should be based on real-world use cases where not all needed data is immediately available and there is also useless data that must be discarded. He believes that the most important thing is developing mathematical problem solving skills basically the things that I did for fun when I was in primary school are skills that need to be taught to high-school students
The Atlantic magazine has an amusing article by Daniel Byman and Christine Fair about the incompetent Islamic terrorists [4]. In Afghanistan half the suicide bombers kill only themselves and the US government has a lot of evidence of Taliban soldiers practicing bestiality and collecting porn. Islamic extremist groups are staffed by people who are bad soldiers and bad Muslims.
Jon Masters wrote an interesting post titled What Would Jesus Buy about ethical purchasing decisions [5]. Jon references The Church of Stop Shopping which isn t a real religious organisation but a street theatre activist group.
ZeroHedga has an insightful article comparing corporations and the US government to street gangs [6]. The conclusion is that when gangs take over a neighbourhood everyone has to join a gang for their own protection.
Hillel Cooperman gave an interesting TED talk about being obsessed with Lego [7]. He compares Lego fans to Furries and makes a good case for this comparison.
Marian Bantjes gave an interesting TED talk about her graphic art / graphic design work [8]. I ve never seen anything quite like this.
Business Insider has an interesting article about oil cleanup, it seems that most people who worked on the Exxon Valdez disaster are now dead [9], s opposed to most people who worked in almost every other occupation at that time who are either still working or enjoying their retirement. The current gulf disaster is bigger, will require more workers for the cleanup, and can be expected to have a higher death toll. Some people claim that measures to reduce oil efficiency will impact the economy, how will millions of people who are chronically ill for the rest of their lives impact the economy?
The NY Times has an interesting article on circle lenses [10], contact lenses designed to make the eyes look larger. It s illegal to sell contact lenses in the US without a prescription, but the latest trend is for women to buy them online in a variety of colors. The FDA should probably approve them, it would be better to have the quality controls you expect from a medical supply company instead of having people rely on Malaysian mail-order companies for the safety of their eyes.
Don Marti has written an interesting article about the economic decline in the US, he suggests making pension funds invest in local jobs [11]. Companies are supposed to act on behalf of their stock-holders, but US companies often have the majority of their stock owned by the pension funds of workers but they act on behalf of a small number of rich people who own a minority of the stock. Don s article was inspired by Andy Grove s article in Bloomberg about the stagnation in technological development that has been caused by off-shoring the manufacturing [12].
Neil Brown has completed a test release of a new Linux software RAID feature for arrays with multiple redundancy that have bad sectors [13]. When a disk gets a bad sector the current behavior is to kick it out of the array, if you have two such errors on a 3 disk RAID-1 or a RAID-6 array then you lose all redundancy and are at risk of catastrophic failure even though in most cases both disks will still mostly work. With this patch some regions of the disk may be excluded but it can provide redundancy for other stripes. Thanks Neil for your great work here, and all your previous work over the last 10+ years!
The RSPCA has a new campaign titled Close the Puppy Factories [14]. Dogs are kept in very poor conditions and forced to churn out puppies for their entire lives to supply pet stores. The RSPCA recommends that people buy puppies from registered dog breeders (not registered dog breeding companies ) and ask to see the dog s parents. They also recommend not buying from classified adverts or pet stores. Animal shelters have to euthenise huge numbers of unwanted animals, you can buy a pet dog or cat from an animal shelter for a small fee that covers the expenses related to housing and spaying it and save that animal from being euthenised!
Maureen Dowd criticises the Catholic Church properly in an article for the New York Times [15]. The Catholic Church officially regards ordaining a woman and raping a child to be equally bad offenses.
Frank Rich wrote an interesting column for the New York Times about Mel Gibson [16]. He describes the destruction of Mel Gibson s reputation as a symptom of changes in the culture in the US and also links it to the fall of Ted Haggard (who supported Gibson s most notorious movie The Passion of the Christ).
- [1] http://www.ted.com/talks/david_byrne_how_architecture_helped_music_evolve.html
- [2] http://www.nytimes.com/2010/06/10/world/europe/10iht-sweden.html
- [3] http://www.ted.com/talks/dan_meyer_math_curriculum_makeover.html
- [4] http://www.theatlantic.com/magazine/archive/2010/05/the-case-for-calling-them-nitwits/8130/
- [5] http://www.jonmasters.org/blog/2010/06/27/what-would-jesus-buy/
- [6] http://www.zerohedge.com/article/guest-post-corporate-entities-modern-day-street-gangs
- [7] http://www.ted.com/talks/hillel_cooperman_legos_for_grownups.html
- [8] http://www.ted.com/talks/marian_bantjes_intricate_beauty_by_design.html
- [9] http://www.businessinsider.com/warning-to-gulf-cleanup-workers-almost-every-crew-member-from-the-1989-exxon-valdez-disaster-is-now-dead-2010-6
- [10] http://www.nytimes.com/2010/07/04/fashion/04lenses.html
- [11] http://zgp.org/~dmarti/business/grove-on-jobs/
- [12] http://www.bloomberg.com/news/2010-07-01/how-to-make-an-american-job-before-it-s-too-late-andy-grove.html
- [13] http://lwn.net/Articles/391208/
- [14] http://www.closepuppyfactories.org/
- [15] http://www.nytimes.com/2010/07/18/opinion/18dowd.html
- [16] http://www.nytimes.com/2010/07/18/opinion/18rich.html
My patches to convert the 3.0 (git) source format to use git bundles have
landed in dpkg's git repository and will be in dpkg 1.15.8.
I think this second attempt at 3.0 (git) has worked out much better than
the first. (Though the first was a pretty good success overall, since
it also led all the other 3.0 formats eventually. ;) Perhaps the intervening
years of git experience helped. The code is much simpler, with none of the
ad-hoc hacks from the first version. The resulting git bundles can be manually
cloned using git-bundle(1) where dpkg-source is not available.
There are two handy new features that can be controlled by
debian/source/options. 
As of this morning I'm 
I ve written a simple application which will automatically extract media from CDs and DVDs when they are inserted into the drive attached to my server. This makes it easy for me to compile all of my media in one place and access it anytime I like. The application uses the modern udisks API, formerly known as DeviceKit-disks, and I wrote it in part to learn get some experience working with udisks (which, it turns out, is rather nice indeed).
Naturally, I wanted to grant this application the privileges necessary to mount, unmount and eject removable media. The server is headless, and the application runs as a daemon, so this would require explicit configuration. udisks uses PolicyKit for authorization, so I expected this to be very simple to do. In fact, it is very simple, but finding out exactly how to do it wasn t quite so easy.
The Internet is full of web pages which recommend editing /etc/PolicyKit/PolicyKit.conf. As far as I can tell, nothing pays attention to this file anymore, and all of these instructions have been rendered meaningless. My system was also full of tools like polkit-auth, from the apparently-obsolete policykit package, which kept their configuration in some other ignored place, i.e. /var/lib/PolicyKit. It seems the configuration system has been through a revolution or two recently.
In Ubuntu 10.04, the right place to configure these things seems to be /var/lib/polkit-1/localauthority, and this is documented in pklocalauthority(8). Authorization can be tested using pkcheck(1), and the default policy can be examined using pkaction(1).
I solved my problem by creating a file in /var/lib/polkit-1/localauthority/50-local.d with a .pkla extension with the following contents:
I've always thought about collecting random bits of useful/interesting/cool
Unix features and the like. Before I let that rot indefinitely in a text file
in my $HOME, I'll post it in a series of blog posts. So here's bit #1:
Everyone knows /dev/null, and most will know /dev/zero. But /dev/full was
unknown to me until some time ago. This device will respond to any write
request with ENOSPC, No space left on device. Handy if you want to test if your
program catches "disk full" - just let it write there:
It's Memorial Day weekend so it was time for the
Alex released 
Since the