Cameron-
rasdaman might be suitable for the raster part:
- no Java (when used without petascope)
- small RAM footprint (2.5MB)
- high-level queryf language.
We have done database teaching using rasdaman, students enjoyed the mix of
database, computational geometry, imaging.
-Peter
On 05/31/2012 11:12 PM, Cameron Shorter wrote:
Hello all,
I've been asked whether OSGeo-Live would run on Raspberry Pi, to be used as a
teaching device a.
Raspberry Pi is a $25 credit card size computer. It runs Debian and only has
256 Meg of RAM. http://www.raspberrypi.org
I've CCed the OSGeo-Live email list, as I expect there will be many on the
list with an interest, and probably a few opinions too.
The challenge will be the size of RAM. Up to version 5.0, we ran OSGeo-Live
with 512 Meg of RAM, but with version 5.5 we discovered that some of the Java
applications required more RAM, and we recommend at least 768 Meg RAM, and
preferably 1 Gig.
The problem will be all the java based applications, which are RAM intensive.
You could potentially run OSGeo-Live, without invoking the java based
applications and there are a C based applications for most, if not all the
tasks you would likely to be teaching.
You could test this be running OSGeo-Live in a Virtual Machine, and limiting
the size of the RAM in the Virtual Machine to 256 Meg of RAM.
You can see approximate RAM usage, and core language for many of our
applications in the following spreadsheet:
https://docs.google.com/spreadsheet/ccc?key=0Al9zh8DjmU_RdGIzd0VLLTBpQVJuNVlHMlBWSDhKLXc#gid=13
OSGeo-Live is based upon Xubuntu (which is a small version of Ubuntu), and I
note from the faq that Ubuntu is not supported by Ubuntu. That might be a
problem.
What you may need to do is start with a Debian Squeeze distribution, then
execute the OSGeo-Live build process, probably with a few tweaks, to build a
custom OSGeo-Live. In this process, you might also only select applications
which will run within the 256 Meg limit.
--
Dr. Peter Baumann
- Professor of Computer Science, Jacobs University Bremen
www.faculty.jacobs-university.de/pbaumann
mail: [email protected]
tel: +49-421-200-3178, fax: +49-421-200-493178
- Executive Director, rasdaman GmbH Bremen (HRB 26793)
www.rasdaman.com, mail: [email protected]
tel: 0800-rasdaman, fax: 0800-rasdafax, mobile: +49-173-5837882
"Si forte in alienas manus oberraverit hec peregrina epistola incertis ventis
dimissa, sed Deo commendata, precamur ut ei reddatur cui soli destinata, nec preripiat
quisquam non sibi parata." (mail disclaimer, AD 1083)
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