Search found 25 matches

by Wulf
12 Apr 2021, 06:48
Forum: Software
Topic: Buster BETA
Replies: 1
Views: 2387

Re: Buster BETA

Great, thank you!

So far no issues.

I made a few changes to the bakery to create a minimal build: https://github.com/joernheissler/imageb ... ee/minimal
"minimal" means that some vital features are missing. But in my opinion it's better to install those later through apt.
by Wulf
04 Mar 2021, 15:51
Forum: Software
Topic: Security Concerns
Replies: 14
Views: 14729

Re: Security Concerns

I'm sure that WolfBoot is a great boot loader. But how would one ensure that only an authentic wolfboot is booted? See e.g. https://blog.nviso.eu/2019/04/01/enabling-verified-boot-on-raspberry-pi-3/ The truth is that on a Raspberry Pi 3, it cannot You can add tamper detection: While the device is po...
by Wulf
22 Feb 2021, 19:23
Forum: Software
Topic: Security Concerns
Replies: 14
Views: 14729

Re: Security Concerns

> Currently I use a raspberry pi in an industrial case with a zymbit 4i security module which is very good for keeping the contents of the SD card private. See https://www.zymbit.com/zymkey/. > This uses the I2C communication from the handling of security negotiations during the startup process and ...
by Wulf
31 Jan 2021, 19:34
Forum: Software
Topic: piSerial prints wrong information
Replies: 14
Views: 10115

Re: piSerial prints wrong information

Hello! The chip goes to sleep after 10 seconds (or 1.3 seconds if so configured, ChipMode bit 2) after it last woke. So even if you do subsequent requests, it will enter sleep mode eventually. This is intentionally by design for security reasons. There are three situations: * Chip is awake. piSerial...
by Wulf
21 Dec 2018, 11:49
Forum: Software
Topic: RevPi und wissenschaftliche Python Pakete (scipy,numpy,pandas,etc..)
Replies: 7
Views: 6405

Re: RevPi und wissenschaftliche Python Pakete (scipy,numpy,pandas,etc..)

Hallo! Der beste Weg ist meistens, ein virtualenv aufzusetzen und dort hinein mit pip zu installieren. Nicht als Root. python3 -m venv /path/to/venv source /path/to/venv/bin/activate pip install -U wheel pip setuptools pip install scipy Ggfs. muss pip noch sourcecode compilieren. Dafür bräuchtest du...
by Wulf
30 Oct 2018, 15:04
Forum: Software
Topic: Update strategy for the RevPi Connect
Replies: 2
Views: 3527

Re: Update strategy for the RevPi Connect

Hi, there are couple of options. * Being a Debian based system, you could enable automatic upgrade of apt packages from your own debian repository. If you're happy with a new package version, push the update into the repo and they're installed on next cron job run. * Use a configuration tool like an...
by Wulf
10 Sep 2018, 18:33
Forum: Software
Topic: Security Concerns
Replies: 14
Views: 14729

Re: Security Concerns

I don't think that secure boot is possible on the RevPi. The ATECC508A chip's documentation is available without NDA: https://www.microchip.com/mymicrochip/filehandler.aspx?ddocname=en590686 I asked Microchip if the data sheet is accessible by intention; it is. They decided to make it public now tha...
by Wulf
01 Sep 2018, 09:34
Forum: Software
Topic: Static IP Stretch
Replies: 1
Views: 3404

Re: Static IP Stretch

There are several ways.
* setup a static lease in your dhcp server.
* setup /etc/network/interfaces. You would need an option like "dns-nameservers 10.20.30.40 10.11.12.13" in your eth0 block.
* setup /etc/dhcpcd.conf instead. Search for "Example static IP configuration".
by Wulf
27 Jul 2018, 13:19
Forum: Software
Topic: Using piSerial programmatically (C Library)
Replies: 5
Views: 7080

Re: Using piSerial programmatically (C Library)

@volker Questions about the crypto chip are coming up frequently. Should there be an entry in the FAQ? Some technical details/links and a clear disclaimer that this is not supported by Kunbus, that piSerial won't be open sourced (because of NDA) and customers who want to use the chip for for product...
by Wulf
27 Jul 2018, 13:14
Forum: Hardware
Topic: Verwendung des Watchdog (Connect)
Replies: 3
Views: 5725

Re: Verwendung des Watchdog (Connect)

Ich hab noch keinen Connect da.
Hoffentlich gibt es einen Kernel-Treiber.
Dann kannst du "apt install watchdog" benutzen.

Achtung: Es gibt schon auf dem core3 irgendeinen Watchdog. Pass auf, dass du die nicht verwechselst!