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Rolling back OpenALPR

If you've upgraded OpenALPR, but later need to roll it back, the procedure is described below.


First find the previous version that you wish to rollback to on this page:



You can simply download the old installer and reinstall over-top.  After restarting services, the old version will be running.



First uninstall the current version of OpenALPR.  Using apt-get remove will leave configuration files, so you will not need to recreate them.

dpkg -l | grep -E '(alpr|rollingdb|vehicleclassifier)' | awk '{print $2;}' | xargs sudo apt-get remove -y && sudo apt-get autoremove -y


Next, install the previous version.  Find the "Archived Linux Repository" that corresponds to your operating system.  For example, an archived repository may look like this (version 2.5.103 on Ubuntu 18.04):

deb bionic main

Insert that repository into the following command and execute the commands:

curl -L | sudo apt-key add -
echo '[###PASTE THE REPOSITORY HERE###]' | sudo tee /etc/apt/sources.list.d/openalpr.list

sudo apt-get update; sudo apt-get install -o apt::install-recommends=true -y openalpr openalpr-daemon openalpr-link
sudo rm /etc/apt/sources.list.d/openalpr.list

Patti is the author of this solution article.

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