svnsync not working properly

Question

I want to sync an SVN repository from one server to another server. I used svnsync, but when I checkout the mirrored SVN repo, it's empty. All of the versioned files are not in sync, only the revision number.

This is what I did:

On the mirror server

• create the SVN repo

  svnadmin create XXX

• modify hooks/add pre-revprop-change

  #!/bin/sh
exit 0

On the main server

• modify hooks/ add post-commit

svnsync sync --non-interactive svn://192.168.1.98/ubetween_backup1 --username an --password an

• svnsync init svn://192.168.1.98/XXX_backup1 svn://192.168.1.29/XXX

• svnsync sync svn://192.168.1.98/XXX_backup1 --username an --password an

Then I do the regular update/checkout/commit, but only the revision number has synced, not the files.

What did I do wrong?