Back in April I ran my first half marathon. I live blogged it with twitter and twitpic as many of you may have followed along. Here is the archived race report dredged up from the dregs of internet history (had to grab my back tweets from twitter history, maybe you just want a local backup of your last 3200 tweets, I used dacort’s easy one liner unix command).
makerbot 'lectric cupcake cnc 3d printer
just a quick update to let you know i was sponsored a 3d printer by wim of kd85.com and i built it and got it working. i presented some slides (odp format, pdf here) about open source hardware and how the makerbot fits into all that at openchaos at the C4 in cologne a few weeks ago. a photo build log of me putting mine together (some assembly required) is here.
i will be bringing ‘lectric to dorkbot aachen next week on wednesday, so stop by if you want to print something out or if you want to see a 3d plastic extrusion printer built from scratch up and running. you can design your own stuff to print and upload it to the thingiverse ahead of time, or just contact me with your digital file and some contact info by email fabienne attt fabienne do0tt us.
a 3 second short video clip showing ‘lectric, my makerbot, printing its very first print (a lego brick) is here below:
boxee on ubuntu jaunty 64 bit notes
i have a media server that i have been working on (slowly) with 2.2 terrabytes of space, an ubuntu machine, amd 64 bit, with mythtv running (german dvb-t or cable tv recording capabilities). all this is well and good but i wanted a better interface to navigate my growing movie and tv show collection. enter xbmc, the interface optimized for couch use (aka with a remote) for navigation of a home theater pc. i have had some woes setting up xbmc, and about a year ago someone recommended trying boxee as it is xmbc + online social network, so you can see what your friends are watching and loving. it turns out boxee still doesn’t have package binaries for 64 bit linux machines, so there are a few hacks to get it working. here is what i did yesterday (after upgrading my ubuntu box to 9.04 jaunty most of the day). i tried a lot of different ways of getting boxee to work, here is what finally worked for me, a bash script for grabbing the newest package (hard to find url on boxee’s site, this script helps with that) and it installs getlibs, a way to getlibs for 64 bit machines with 32 bit packages.
and then to get the network recognized by boxee, add this:
sudo apt-get install lib32nss-mdns
next on my list is getting lirc (the infrared remote control stuff) working so my remote works better with mythtv (some buttons working) and to work at all with boxee (not recognized at all). it’s fun to pick up working on all of this after putting it aside for over a year!
hardhack 2009 wrap up
hardhack in berlin
deja vu photography
i just came across some photos i made of my sister eating at a thai restaurant, once in 2002 in nyc, and secondly in 2008 in lausanne, switzerland. my mother (a professional analog photographer) used to take a series of photographs many years apart at the same location with the same sorts of clothing. if i can find it, i will try to scan the treehouse series (photos probably in a box of mine in storage in california), with my sister and i sitting in the same place in our treehouse many years apart.
at any rate, my sister and i remembered that i had shot a few photos in nyc at my favorite thai place in the east village, tara thai. this came to us when we were forced to improvise dinner plans in lausanne last year because a vegetarian restaurant no longer existed. we managed to convince our waitress to make thai iced tea as well, which the thai restaurant in lausanne insisted was only a summer drink. we didn’t look at the original photos when we reshot, only what we remembered. it’s mind boggling what the human memory can retain six years later from a favorite photograph. either that, or my sister has some sort of inherent thai food consuming pose coded into her dna. either way, i find it fascinating.
drobo + airport extreme + time machine + multiple macs
i struggled a bit getting backups going for our (mostly mac) office at doctr.com, but now things are finally up and running. i combined a first gen drobo, an airport extreme (wired over gigabit), time machine, and multiple macs with os 10.5.6 (leopard).
i mostly followed the “use sparse image” section from this post. here is what i did step by step:
- setup drobo with drobo dashboard directly plugged into one computer, format for max size (i chose 8TB because it would be faster boot time than 16TB, and frankly right now only 2TB drives are at a good price point, which makes 5.5 available TB if you have 4 x 2TB drives. i currently have 4 x 1TB drives in the drobo which makes 2.7TB available space. you can estimate available space with the drobolator), even if you don’t have that much space, this means you can slot in some bigger drives in the future without touching your setup, so make this max size BIG.
- next format the drive with os x’s disk utility with “Mac OS Extended (Journaled)”. if you don’t, you won’t be able to use it for time machine over the airport extreme. disk utility should see it as an 8TB drive (even though it really is much smaller). this step is currently incorrect on this page. you must chose “Mac OS Extended (Journaled)” (aka hfs+). this setup will absolutely not work if you choose just “Mac OS Extended”.
- the next step is the step outlined here under the heading “Best Method: Use a Sparse Image”. i repeated this step for all our macs at the office, making a sparse image for each with the correct hostname of each machine, the correct MAC address for each machine, and a different name for each -volname. for the sizes, i took the total disk space of each machine and added a bit of headroom for extra weekly backups with time machine. once time machine uses up the space alloted by the sparse image for that particular machine, it will start deleting older weekly backups. currently we don’t have any machines that are even using their full disk capacity, so i have a feeling my headroom will be plenty. make sure that when you add up all the sizes of your sparse images, that your total is less than 95 percent of the drobo available space you estimated with the drobolator. so i, for example, have 4 x 1 TB drives in the drobo, which gives me 2.7TB of available space, so i should keep the sum of all my sparse image files under 2.565 TB. the nice thing about definining these sparse image files is that you can make them bigger later, if, for example, you add a new drive into a machine (or if you upgrade the total usable disk space of your drobo by putting more/bigger drives into your drobo). to increase the sparse image size , “disconnect all users” in the airport utility and plug your drobo directly back into a tower or laptop. in the command line:
$ hdiutil resize -size 1500g nameofsparseimage
you can also add more sparse images by doing the same thing, disconnect all users, plug the drobo back into a machine, add a new sparse image for a new machine you want to backup.
- once you have all the sparse images on the drive, eject it from your computer, and plug it into the airport extreme (via usb). now setup your airport extreme with the airport utility. choose “Manual Setup” and the “Disks” tab up top. the airport extreme will not report the right size of the drive, don’t worry about that. under the “File Sharing” tab, check “Enable File Sharing”. for me, the way it seemed to be happiest was to choose “Secure Shared Disks: With a disk password” and “Airport Disks Guest Access: Not allowed” and leave “Advertise disks globally using Bonjour” unchecked. Click the “Update” button at the bottom of the airport utility and let the airport extreme reboot completely. i had some problems when playing with configs that the airport extreme wouldn’t reboot properly. a friend noted that this was because the airport extreme sometimes pulls power from the connected disks and doesn’t totally reboot itself. my solution was to unplug the usb from the drive and unplug the power cable from the airport extreme. then repower the airport extreme, then plug in the drive once it has booted back up again.
- now you can configure time machine. on one of the machines for which you have made a custom sparse bundle, open a finder window and select your airport extreme from the “shared” tab on the left. click the “Connect” button and enter the disk password you defined in the airport utility. the drobo should now be mounted as a shared drive in your finder window, and you should be able to see the sparse bundles you previously made there. now open time machine preferences on this machine and choose disk/change disk. if you have followed everything above, you should see the drobo in the list of available drives. you won’t see any different partitions or the sparse bundles, just choose the drobo drive. time machine may ask you for the disk password again, this can be your username and the disk password you set in the airport utility. (backups should work for all users on the same machine, even if you don’t expressly go into each user and setup time machine, this should be a system wide backup.) now start your backup. when your backup is going, the sparse bundle should mount as a drive on your machine (maybe even on your desktop if you have the Finder pref “Show these items on the Desktop:” “External Disks” selected.) your backups should be only written to this sparse bundle and not write anything extra to the drobo. verify this by navigating in your finder to the airport extreme and make sure that only your sparse bundles that you first made there are listed. if there is anything extra apart from your original sparse bundles, you made a mistake in step 3 with the name of the machine or the mac address. each machine should only write to its own sparse bundle for which you have defined a set size. now time machine won’t try to eat up your entire drobo’s space (in my case 8TB) and stay within the size parameters you set in step 3.
this setup has been up and running for a few days at this point, and i can use time machine (though it is a bit slow) on each machine to step back in time. i will report later if there are any issues with the airport extreme requiring reboot or issues with the drobo. for now it’s all crunching along quite nicely, and i’ve even swapped some disks in and out of the drobo to upgrade my total raid space. i don’t have an offsite backup solution yet, but i’m considering doing backups every two weeks using super duper! with external terabyte drives for each machine. all in all, the drobo is an awesome raid solution that works so painlessly with different sized drives, but getting it to work with a multi-mac setup was a tad more than i bargained for. feel free to leave comments if i left something out, or if something in this outline doesn’t work for you.
events including hardhack 2009
lots of hardware related events are coming up. first of all i will be speaking informally at the baustel-montag this coming monday about hardhack. next up i will be speaking during re:publica about open hardware (namely licensing and historical implications of open circuit information). i will most likely attend sigint, (the ccc event not in december and not in berlin). after that comes my event, hardhack, which will be only hands-on hardware stuff, no blah blah at all. then ph-neutral which this year will include some hardhack components. and the newest addition to my roster, i will be organizing HARdware, a pre-HAR2009 event to build some really awesome interactive hardware things for attendees of HAR to play with during camp. my project will be a group of networked, interactive, and hackable couches in the slacker dome. other projects may include a huge outdoor capacitive dance interface, cotton candy representations of network traffic, and walls of networked color changing pixels. contact me (fabienne @ this website) if you want to get involved!
talk on open source hardware at fsf europe
i’ll be giving a talk at the Free Software Foundation Europe fellowship meeting in Berlin this week Thursday, February 12th 2009 at 19:30 at the New Thinking Store, Tucholskystrasse 48. more info here. i’ll be speaking on open source hardware and the presentation will be in english.
living in a gorgeous mathy future
i was reluctant to start reading the book Anathem by Neal Stephenson because i was afraid that i would be depressed about living in the present. i voiced my apprehension to the author at a book reading here in Berlin. he thought it was a silly fear, and thus i started absorbing the pithy mathtastic volume. i usually jot down page numbers of my favorite passages at the front of the book, but since this one had been autographed and dedicated to me, i figured i shouldn’t sully it with my usual pencil scratches. [sidenote: why aren’t there ebook readers where i can annotate (underline and scrawl notes in the margin) and do full text search yet? get on it ebook creators.] so i twittered my three month journey through this mathic universe. notable quotes include:
p. 171: “When I recited the 127th through 283rd digits of pi, the fight went out of them.”
p. 210: “his plan had another advantage as well: it was flagrantly silly.” recreating battles with weeds vs. garden. awesome.
p. 351: “…desperate men living on the top of a mountain, eating lichens.”
p. 642: “We are speaking of an infinitesimal snatch of time just after the Big Bang…”
p.721: “anything else, as long as i have a channel open?” “is it a private channel?” “don’t be ridiculous,” he pointed out.
…and on page 799 reference to euclid’s proof that the square root of two is an irrational number. this was an incredible read, one which i hadn’t anticipated i would enjoy, but in the end it wasn’t the future world or its mathy inhabitants that drove the story. as always, it was the incredible characters that propel a narrative that only stephenson can weave into a cohesive story. i loved the whole journey.