Every time I copy a photo archive I end up reading the man page again, so here is the short version.
rsync -aHAX --info=progress2 --partial src/ dst/
-a keeps permissions, times and symlinks.-HAX adds hard links, ACLs and extended attributes.--partial keeps half-copied files, which matters over a flaky link.src/ copies the contents, not the directory itself.Add -n first. Always.