Without information no one can help you. What webserver are you using? (Apache / Nginx / IIS / … ?).
If you are using Apache then what do your rewreite rules looks like? If not, then rewrite rules won’t work and you will have to translate them to your platform. Did you?
Figured it out myself. You may want to improve the installation documentation.
Things I did
Made sure to create /var/www/wordpress directory and run chown -R www-data:www-data /var/www/wordpress
In /etc/apace2 sites-enabled created wordpress.conf added this on line 12:
ServerAdmin webmaster@localhost
DocumentRoot /var/www/wordpress
<Directory /var/www/wordpress>
AllowOverride All
Order Allow,Deny
Allow from All
Disabled 000-default.conf in same directory
In /var/www/wordpress addeed to hidden .htaccess file :
Options +FollowSymLinks
Bingo ! I created my first book.
I suspect the permissions can be locked down a tad more but I will work on that once I have finished installing the dependencies…
If there are any issues related to the Pressbooks portion of the installation we are happy to add/improve them. It sounds like the trouble you were having was with the initial WordPress Multisite installation, and it is not practical for us to maintain a parallel set of documentation to the WordPress project especially given that WordPress Multisite installation varies from server to server (Apache/Nginx/etc). Glad you got it worked out!