I am trying to append text to the /boot/config.txt file but for some reason this is not working with the latest Raspbian(2016-05-27)

pi@raspberrypi:~ $ sudo echo 'dtoverlay=pi3-miniuart-bt' >> /boot/config.txt
-bash: /boot/config.txt: Permission denied

Any clues why this is not working or is there another way to append text to a file?

1 Answer 1


The redirection takes place before sudo takes effect.

Try something like

sudo sh -c "echo 'dtoverlay=pi3-miniuart-bt' >> /boot/config.txt"


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