why pi #
I currently use Pis for:
install Raspberry Pi OS #
Raspberry Pi Imager #
Use the Raspberry Pi Imager tool if you can:
- it give you a lot of different types of OS's to install
- it can configure your SSH and WIFI credentials during the install
- before selecting an OS, check which OSs are compatible with the various Pis: https://www.raspberrypi.com/software/operating-systems/
- be careful if you're using a Pi Zero W, as the 64-bit Raspberry Pi OS (64-bit) is not compatible with it!
plug in your sd card reader, you should see empty mount points appear:
$ lsblk
sda 8:0 1 0B 0 disk
sdb 8:16 1 0B 0 disk
sdc 8:32 1 0B 0 disk
sdd 8:48 1 0B 0 disk
As soon as you insert your SD card, you should immediately see the storage appear under one of these mount points:
$ lsblk
...
sda 8:0 1 29.7G 0 disk
├─sda1 8:1 1 42.9M 0 part
└─sda2 8:2 1 29.7G 0 part
You should now be able to run the Raspberry Pi Imager
NixOS has the rpi-imager tool available, so you don't have to download anything:
nix-shell -p rpi-imager
But currently I'm having a hard time using this tool on NixOS because that tool needs super access, and as soon as it's run with sudo, it crashes
browser #
I had to edit /etc/resolv.conf because of slow loading times, I appended the following to the file:
# my options
options timeout:1 attempts:5
go #
I had to build go from source, as the version of go that comes with the raspian distro is not compatible with megacmd
scanner #
problems with sane and detecting a USB scanner
i had to go to /dev/bus and
chmod -R 777 usb
after that the scanner was detected by scanimage -L
sound #
ALSA should already be pre-installed, use that - not pulseaudio.
[[MPlayer]] will use the default libavcodec to play mp3 files - which is fine. It will complain however that it can't find the mpg123 codec files to play. Install the packages libmpg123-0 (and maybe mpg123?) and then edit the ~/.mplayer/config file to include:
afm=mp3lib
The pi can either output audio via the hdmi cable or the standard analogue audio jack. Use the below command to switch between hdmi/analogue:
Substituting for the desired mode: 0=auto, 1=headphones, 2=hdmi. For example, to force the Raspberry Pi to use the analog output:
sudo amixer cset numid=3 1
port forwarding #
You can use port forwarding on the router to forward a high port number to the ssh port of a pi on my local network.
e.g. 80.111.144.159:10000 -> 192.168.1.100:22
to generate this high port number, you can multiply the final octet of the local static ip address by the power of 2
e.g. if the local 192.168.1.100, the port number used for forwarding will be: 100^2 = 10000