I would like to copy all the posts, users, and pages from my main site into a sub site. I've tried exporting and importing, but the main site has thousands of entries and hundreds of users, and the import seems to fail at around 250 posts without an error. Any ideas for the migration would be greatly appreciated.
Unfortunately, this fine plugin (Add Clone Sites for WPMU (batch)) doesn't do that...
From its FAQ:
Albeit a little chaotic and difficult to search, there's very good info about MS in WordPress official forum.
Finally, I know that this other one, premium as well, does it: BackupBuddy.
The actual version is still in Beta stage regarding Multisite, and have some glitches (nothing grave) when exporting.
But apart export/import, it also has a duplicate option, that I just tested.
I was able to use the standard WordPress import and export by raising the maximum memory limit in