Linux

Cloning RaspberryPi SD Cards

Posted on June 23, 2020 by treaclepumpkin

This is the best clone tool I’ve found, and used.
https://github.com/billw2/rpi-clone
For what I want I just use the command: $ rpi-clone sda
This clones the current bootable SD Card to the SD Card in the USB port.

nginx – basics

Posted on April 4, 2018May 16, 2018 by treaclepumpkin

This is a quick aid based on the Raspberry Pi documentation.

Some basic commands are:

sudo nginx -s reload
sudo nano /etc/nginx/nginx.conf
systemctl status nginx.service

Cannot synchronise MLAT with Piaware?

Posted on June 16, 2017May 16, 2018 by treaclepumpkin

Possibly an issue with Pi firmware of 4.9.x, find out your version by using this command

uname -a

If so then issue these commands, the first installs the firmware updater the second the 4.4.50 version of the firmware.

sudo apt-get install rpi-update
sudo rpi-update 52241088c1da59a359110d39c1875cda56496764

If you can’t install the firmware because you have a “custom” kernel then you’ll have to get the latest version of Raspbian and install that, then run the above two commands.

Reducing wear on your sd-card

Posted on January 9, 2017January 8, 2018 by treaclepumpkin

One way to increase the lifespan, and presumably, reliability of the sd-card, currently being hammered, in your Pi is to put some of the temporary files into memory.

Add the following to your /etc/fstab

tmpfs /var/log tmpfs nodev,nosuid,size=50M 0 0

If the size isn’t specified then half of the machine’s memory is used.
nodev and nosuid are security options, the suggestion is that these only need setting for public facing machines.

8-Jan-2018: If you’re using the lighttpd web server then be aware that it stores files in /var/log, and it doesn’t like them being removed. This will cause the server to fail to start.