Update install instructions


Following the instructions on https://docs.pressbooks.org/installation/, I found that I also needed to install the php extension exif (in addition to xsl) in order to get exports to work (I’m guessing because of images generated by QuickLatex).

I also found that:
define( ‘PB_EPUBCHECK_COMMAND’, ‘/usr/bin/epubcheck’ );

should be the ‘jar’ version shown later in the same documentation:
define( ‘PB_EPUBCHECK_COMMAND’, ‘/usr/bin/java -jar /somepath/epubcheck.jar’ );

perhaps the documentation should be cleaned up to be more self-consistent.


Hi @ryanmartinneutrino, it’s on our list, thanks for bringing it up :+1:

(Also of note—we accept pull requests on https://github.com/pressbooks/docs.)


Thanks for the contribution @ryanmartinneutrino!


My pleasure! I’m hoping to use PB to host a physics textbook with eCampus Ontario, so I’ve installed my own instance to play around with different plugins, etc, to see if it is a suitable platform.
I created a dockerized instance, so had to go through all the details of the installation to figure out how to do it in docker, so thought I would update at least the obvious items in the installation instructions…