====== Raspberry Pi ======

My local notes on how to use and abuse the [[https://www.raspberrypi.org|Raspberry Pi]].

===== Reference =====

  * [[https://www.raspberrypi.org/documentation/hardware/raspberrypi/revision-codes/README.md|Raspberry Pi Revision Codes]]
  * [[https://elinux.org/RPiconfig|RPiconfig]]

==== Checking Raspberry Pi hardware revision from CLI ====

<code>grep Revision /proc/cpuinfo</code>

You can look up Raspberry Pi revision codes [[https://www.raspberrypi.org/documentation/hardware/raspberrypi/revision-codes/README.md|here]].

==== Finding a newly booted Raspberry Pi configured by DHCP ====

This script will find any devices on your network that have been configured by DHCP and have an ARP record.

<code>
#!/bin/bash
echo "The following Raspberry Pi 4 devices have been found:"
arp -a | grep dc:a6
# add MAC for other models...
echo "The following Raspberry Pi 2/3 devices have been found:"
arp -na | grep -i "b8:27:eb"
</code>

==== Mounting and modifying a Raspberry Pi image file ====

This will result in mounting a partition contained within a Pi image file at /tmp/image-part

<code>
file ubuntu-20.04.1-preinstalled-server-arm64+raspi.img
# find the startsector of the partition you wish to mount (in this example 526336)
sudo mount -o offset=$[512*526336] ubuntu-20.04.1-preinstalled-server-arm64+raspi.img /tmp/image-part
</code>

===== Pages =====

<nspages pi -h1 -textPages="">

=== From other sections ===

  * [[debian:pi|Debian on Raspberry Pi]]
  * [[ubuntu:pi|Ubuntu on Raspberry Pi]]
  * [[zabbix|Notes on Zabbix]] (includes instructions for installation on raspi)