How to upgrade to Debian Buster

In preparation to upgrade to the new Raspberry Pi 4, I recognized that also Raspbian has upgraded to Debian Buster now.

On my first approach to use apt-get update && apt-get dist-upgrade there was first the message, that the repository is not yet available, so I had to set the date manually e.g.

$ sudo date -s “04 July 21:23:24”

This was followed by the error message:

E: Für das Depot » buster InRelease« wurde der »Suite«-Wert von »testing« in »stable« geändert.
N: Sie müssen dies explizit bestätigen, bevor Aktualisierungen von diesem Depot angewendet werden können. Lesen Sie die apt-secure(8)-Handbuchseite, wenn Sie weitere Informationen benötigen.

(means that I had to accept the repository change for buster from testing to InRelease)

$ sudo apt update –allow-releaseinfo-change

Now there was ais a missing dependency for libttspico-utils in the old, so I added the debian standard repository non-free to the /etc/apt/sources.list file:

deb buster non-free

But I also needed to import the new pgp keys as well:

$ gpg –recv-keys 648ACFD622F3D138
$ gpg –recv-keys DCC9EFBF77E11517

and import them

gpg -a –export 648ACFD622F3D138 | sudo apt-key add –
gpg -a –export DCC9EFBF77E11517 | sudo apt-key add –

Now I could update the apt sources

$ sudo apt-get update

and install with the script in the main folder hackademy from GitHub

Vorleser @ #CityLab Berlin exhibition

On 12th of June 2019, the Berlin #CityLab opened in a part of the former airport Berlin Tempelhof. Until the end of the year, our Vorleser will be on display there as part of an exhibition. The exhibition is open Wednesdays to Fridays from 10:00 a.m. to 5:00 p.m. and it is also worth visiting the events there for anyone interested in modern urban development.

Vorleser goes re:publica

This year we had the great opportunity to present ourselves at the re:publica 2019 in the FabMobil at a small workshop. Unfortunately there were some technical difficulties on the Sunday before, when two Raspberries broke down. Therefore a large part of the workshop consisted of setting up the new equipment and fixing some defective solder joints. Although the FabMobil was located in the B-Part, just outside of the re:publica 2019 area, some interested people came to talk to us about the project.

even though it was a bit narrow, we had some fun talking about OpenHardware projects
Nadia tried her hand at building the casing after the workshop participants had cut out some parts for it with the FabMobil’s laser cutter.