First attempt at setting up a multisite WordPress installation:
- Uploaded the GB version of WordPress to the root and performed the usual 5-minute installation.
- Edited the wp-config.php to enable multisite.
- Installed multisite, and
- in light of a warning, created a Wildcard DNS entry.
- Added lines to wp-config.php as instructed.
- Made hidden files visible in CPanel then added lines to .htaccess as instructed.
If you’re interested, I found instructions here: https://premium.wpmudev.org/blog/ultimate-guide-multisite/