Keywords: WordPress Multisite - AWS - Technical issue - Upgrade
When logging in to the multisite instance over SSH there is a message Server Restart Required
sudo shutdown -r now reboots the server, and presumably applies patches silently.
The existing multisite instance is then broken because all domain records , e.g.
DOMAIN_CURRENT_SITE in wp-config, and
home records in
wp_options table in mysql, plus other tables that define the root installation URL/domain.
This is obviously not ideal, but is it expected behaviour?