Raspberry Pi Notes
So there are a few big issues with Raspberry pi’s printer array and raspberry pi scalability.
This is needed for remote updates and status monitoring.
- Dynamic DNS services like noip runs at least $25 / y for 25 devices
- Free alternatives: http://freedns.afraid.org/, https://www.dynu.com/, http://www.dnsdynamic.org/, http://www.duckdns.org/
Make and restore images using dd
Then all you have to do is change a few variables so the device has a different name. Not too complicated much faster than doing installations.
Use /dev/rdisk its about 20x faster than /dev/disk. By doing
sudo dd bs=4m if=sdimg2.dmg | pv | sudo dd bs=4m of=/dev/rdisk2 you can monitor progress.
SD cards can get corrupt! And they do! Often!
Since my pi’s are screen-less, we don’t shut them down by logging out of the OS. We just unplug them. This can cause SD card corruption. Apparently
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